Page 1
GE Energy
Industrial Solutions
GEH-702 Users Manual
®
Spectra
RMS Molded Case
Circuit Breakers
with microEntelliGuard
TM
Trip Units
Page 2
GEH-702 Users Manual
Standard Protection
Advanced Protection
Advanced Features
Long Time
Neutral Protection
Metering (Basic/Advanced)
Short Time
Zone Selective Interlock (ST/GF/INST)
Communications (Modbus)
Instantaneous
Reduced Energy Let-through
Waveform Capture
Ground Fault (trip or alarm)
Spectra® RMS Circuit Breakers with microEntelliGuard
The microEntelliGuard
TM
Trip Unit is the latest and most advanced trip unit available in the Spectra line of
TM
Trip Unit
molded case circuit breakers. The trip unit design is based on the EntelliGuard trip unit platform. The
microEntelliGuard
TM
Trip Unit incorporates many of the advanced features and protective functions available
on the EntelliGuard Trip Unit and is available in the 600-amp Spectra G and 1200-amp Spectra K frames.
Spectra breakers with microEntelliGuard
TM
Trip Units allow you to select the enhanced system protection,
coordination, and communication options required for the application.
Table 1. Catalog Number Nomenclature
SK PC 36 12 L4 R 6
1. SKT and SKS catalog codes are optimized for selectivity and will carry a
480Vac maximum voltage rating.
Code Description
SK SK1200
HC
LC/TC1
PC/SC1
HH
LL/TT1
PP/SS
3, 4 or
08
10
12
L3
L4
L5
L7
X
K
Z
T
R
L
M
N
V
P
S
W
X
2
6
8
35kA at
480Vac
65kA at
480Vac
100kA at 480
35kA at
480Vac
65kA at
1
6 3 Poles, 480Vac or 600Vac
480Vac 100% Continuous UL Rating
100kA at 480
800
1000
1200
LSI
LSIG
LSIA
LSI-CP
None
Neutral
ZSI
ZSI
RELT
ZSI (ST/G F)
ZSI (ST/G F) + Neutral
ZSI (ST/G F) + RELT + Neutral
RELT + Neutral
ZSI (ST/GF/INST)
ZSI (ST/GF/INST) + Neutral
ZSI (ST/GF/INST) + REL T + Neutral
Meterin g
Meterin g
Meterin g (Adv) + Modbu s + Waveform
Meterin g (Adv) + Modbu s + Waveform
Amps
Amps
Amps
Protection
(ST/GF)
(ST/GF/INST)
+ RELT
(Basic)
(Basic)
Vac
Vac
SK
L =
S =
I = Instantaneous
G =
A =
CP = Control
Protection
Protection
+ RELT
+ Modbus
Standard UL
Frame
Long
Time
Short
Time
Ground
Ground Fault
Protection
Protection
Protection
Rating
Fault
Alarm
Power
Capture
Capture + Protective Relays
Function
Frame
Interruption
Poles, Max UL
Max
Designation
Amps
Standard
Protection
Functions
Advanced
Functions
Protection
Advanced Features
Communication
Rating
Voltage
&
Page 3
GEH-702 Users Manual
2
Warnings, Cautions, and Notes as Used in this Publication
Warnings - Warning notices are used in this publication to emphasize that hazardous voltages, currents, or
other conditions that could cause personal injury are present in this equipment or may be associated
with its use.
Warning notices are also used for situations in which inattention or lack of equipment knowledge could cause
either personal injury or damage to equipment.
Cautions - Caution notices are used for situations in which equipment might be damaged if care is not taken.
Notes - Notes call attention to information that is especially significant to understanding and operating the
equipment.
This document is based on information available at the time of its publication. While efforts have been made
to ensure accuracy, the information contained herein does not cover all details or variations in hardware and
software, nor does it provide for every possible contingency in connection with installation, operation, and
maintenance. Features may be described herein that are not present in all hardware and software systems.
GE Industrial Solutions assumes no obligation of notice to holders of this document with respect to changes
subsequently made.
GE Industrial Solutions makes no representation or warranty, expressed, implied, or statutory, with respect to, and
assumes no responsibility for the accuracy, completeness, sufficiency, or usefulness of the information contained
herein. No warrantees of merchantability or fitness for purpose shall apply.
Page 4
GEH-702 Users Manual
3
Table of Contents
Spectra RMS Circuit Breakers with
microEntelliGuard™ Trip Unit ……………………………… 1
Section 1
Read This First ………………………………………………………… 5
Trip Unit Functions…………………………………………………… 5
Standard Protection Functions …………………………………… 5
Advanced Protection Functions …………………………………… 5
Advanced Features And Communications ……………….. 6
Rating Plugs ……………………………………………………………… 6
Equipment Interfaces ……………………………………………… 8
Neutral Current Transformers ……………………………………… 8
Terminal Blocks ………………………………………………………………… 8
Distribution Cable Junction Boxes ……………………………… 9
Power Supplies ………………………………………………………………… 9
Voltage Conditioners …………………………………………………… 10
Voltage Modules …………………………………………………………… 11
Distribution And Extension Cables …………………………… 11
Auxiliary Switches ………………………………………………………… 11
Communications …………………………………………………………… 12
Reduced Energy Let-Through …………………………………… 12
Zone Selective Interlock ……………………………………………… 12
Section 2
microEntelliGuard™ Trip Unit ……………………………… 14
Overview ………………………………………………………………………… 14
HMI …………………………………………………………………………………… 14
Liquid Crystal Display and Power Requirements ….. 14
Led Status Indicator ……………………………………………………… 15
Trip Unit Operating Modes ………………………………………… 15
Setup Mode……………………………………………………………………… 15
Language (Standard) ………………………………………………… 16
Long Time Pickup (Standard)…………………………………… 16
Long Time Delay (Standard) ………………………………….... 16
Short Time Pickup (Standard) ………………………………… 17
Short Time Delay
Instantaneous Pickup (S
Reduced Energy Let-Through (RELT)
Instantaneous Pickup (Optional)………………………… 18
Ground Fault Pickup (Trip Or Alarm) (Optional)…… 18
Ground Fault Delay (Trip Or Alarm) (Optional) ……. 19
Zone Selective Interlock (ZSI) (Optional) ………………. 19
(Standard)
tandard)
……………………………………. 17
…………………………… 18
Neutral Protection Pickup (Optional) …………………… 20
Protective Relays (Optional) …………………………………… 20
Output Relays (Optional) ………………………………………… 21
Waveform Capture (Optional) ………………………………… 21
Frequency (Standard) ……………………………………………… 21
Potential Transformer Primary Voltage
(Optional) ……………………………………………………………….. 21
Potential Transformer Connection (Optional) …… 21
Power Direction (Optional) …………………………………….. 22
Phase Rotation (Standard) ……………………………………...22
Thermal Memory
Auxiliary Switch (S
(Standard)
tandard)
……………………………………… 22
…………………………………… 22
Modbus (Optional) ……………………………………………………. 22
Date And Time (Standard)…………………………………………22
Metering Mode ……………………………………………………………. 23
Operating Mode ………………………………………………………. 23
Current (On All Trip Units) ………………………………………. 23
Voltage (Advanced Metering Only)………………………… 23
Real Power (Advanced Metering Only) ………………… 23
Reactive Power (Advanced Metering Only) ………… 23
Apparent Power (Advanced Metering Only) ……… 23
Peak Power Demand (Advanced Metering Only) . 23
Energy (Advanced Metering Only) ………………………… 24
Frequency (Advanced Metering Only) ………………… 24
Power Factor (Advanced Metering Only)……………… 24
Settings Mode ……………………………………………………………….. 24
Setting Status ……………………………………………………………. 24
Pickup Status ……………………………………………………………. 24
Error Status ………………………………………………………………. 24
Version ………………………………………………………………………. 24
Comm Settings …………………………………………………………. 24
Events Mode …………………………………………………………………. 24
Appendix A. Display Screen Flow ………………………….. 25
Appendix B. Modbus Register Map ……………………….. 28
Appendix C. Breaker Harness Pin-Outs ……………….. 45
Appendix D. Metering …………………………………………….. 47
Appendix E. Troubleshooting. ……………………………….. 48
Appendix F. Replacing MicroVersaTrip with
microEntelliGuard™ ………………………………………………. 49
Appendix G. Additional Information …………………….. 50
Page 5
GEH-702 Users Manual
4
Table of Figures
Figure 1. Typical Neutral CT Connection ……………………… 9
Table of Tables
Table 1. Catalog Number Nomenclature ……………………… 1
Figure 2. Typical Power Supply Connection
Using a Terminal Block ……………………………………………… 10
Figure 3. Typical RELT Wiring Diagram …………………………. 12
Figure 4. Typical microEntelliGuard System ……………….. 13
Figure 5. LED Location ……………………………………………………… 14
Figure 6.
Keypad
Definition ……………………………………………. 14
Figure 7. Typical LCD Screen …………………………………………. 14
Figure 8. Long Time Pickup……………………………………………… 16
Figure 9. Long Time Delay ………………………………………………. 16
Figure 10. Short Time Pickup ………………………………………… 17
Figure 11. Short Time Delay with Slope Off…………………. 17
Figure 12. Short Time Delay Set to Maximum ……………. 17
Figure 13. Instantaneous Pickup …………………………………... 18
Figure 14. Ground Fault Pickup ……………………………………… 18
Figure 15. Ground Fault Delay ………………………………………. 19
Figure 16. System With Voltage Swap Cable ……………. 22
Figure 17. Signal Definitions 20-Pin Harness
(Breaker Pigtail) ……………………………………………………………… 45
Figure 18. Signal Definitions 12-Pin Harness
(Breaker Pigtail) ……………………………………………………………… 46
Figure 19. DB15 Connector …………………………………………… 46
Figure 20. MicroVersaTrip vs. microEntelliGuard
Conversion ……………………………………………………………………… 49
Figure 21. MicroVersaTrip Commnet Wiring ………………. 49
Figure 22. microEntelliGuard
TM
Modbus
Connection …………………………………………………………………… 50
Table 2. Rating Plug Catalog Numbers…………………………… 7
Table 3. Harness Type Definition………………………………………. 8
Table 4. Neutral CT’s …………………………………………………………… 8
Table 5. Terminal Block Descriptions ……………………………… 8
Table 6. Junction Box Descriptions ………………………………… 9
Table 7. Power Supply Plate Catalog Numbers ……………. 9
Table 8. Voltage Conditioner Plate Assemblies ………….. 10
Table 9. Voltage Module Catalog Numbers………………….. 11
Table 10. Distribution Cable Harness Options …………….. 11
Table 11. Extension Cable Harness Options ……………….. 11
Table 12. Voltage Exchange Harness Options …………….. 11
Table 13. Auxiliary Switch Options ………………………………... 11
Table 14. LED Status Flash Sequence ………………………….. 15
Table 15. Nominal Time Delays………………………………………… 16
Table 16. Available Instantaneous Pickup…………………….. 18
Table 17. ZSI Settings ……………………………………………………….. 20
Table 18. Output Relay Group Assignments ………………… 21
Table 19. Waveform Capture Setup……………………………….. 21
Table 20. Setup Mode Programming …………………………….. 25
Table 21. Wye Configuration Metering………………………….. 27
Table 22. Delta Configuration Metering ………………………. 27
Table 23. Status Screen Definitions ………………………………. 28
Table 24. Event Mode Screen Definitions ……………………. 28
Table 25. Discrete Input , Function Code 2 …………………. 29
Table 26. Communication Parameters:
Modbus Function 3 (Read Only)………………………………… 30
Table 27. Communication Parameters:
Modbus Function 3 (Read/Write Parameters) ………. 31
Table 28. Communication Parameters:
Modbus Function 4 ……………………………………………………… 40
Table 29. Communication Parameters:
Modbus Function 5 ……………………………………………………… 44
Table 30. Metering Accuracy …………………………………………. 47
Page 6
GEH-702 Users Manual
5
Section 1
Read This First
Proper circuit protection depends on setting up and
installing the circuit breaker correctly. Do not attempt
to energize the circuit breaker before thoroughly
understanding all of the trip unit setup parameters
and ensuring that they are set correctly and that
associated equipment and interfaces are also installed
and connected correctly.
Spectra breakers with microEntelliGuard
use rating plugs to set the breaker current rating.
Ensure that an appropriately sized rating plug is
installed into the trip unit prior to programming the
trip unit . Failure to install a rating plug can result in
unwanted trips. Installing a rating plug that is not
intended for the frame rating can result in unwanted
trips, and could result in improper protection.
When setting up the trip unit for the first time, use
external 24Vdc control power (via external control
power, test kit , or portable batter pack) to ensure that
all protection parameters are programmed correctly.
CAUTION - Removal of the rating plug while the
breaker is carrying current reduces the breaker’s
current-carrying capacity to the minimum rating
plug value of the current sensor. This may result in
unwanted tripping.
NOTE - Trip Units as received may have settings that
are undesirable for the specific application. Ensure that
settings are appropriately adjusted before energizing
the breaker.
TM
Trip Units
Trip Unit Functions
This section describes the standard and advanced
protective functions and the advanced features
and communication capabilities offered on the
microEntelliGuard
Standard Protection Functions
Adjustable Long Time (pickup and time
Three different sets of curve shapes are available with
slopes that mimic traditional MicroVersaTrip® long time
curves (I2t), recursive thermal curves (thermal-mag circuit
breaker) and fuse emulation (I4t).
Adjustable Short Time (pickup and time
standard. An option to turn the short time function off
is also included. Multiple slope functions are available
with I2t IN or OUT.
Adjustable Instantaneous (pickup) is standard.
Adjustable Ground Fault (pickup and time
optional. This feature causes the breaker to TRIP when
responding to a ground fault.
Adjustable Ground Fault Alarm (pickup and time delay)
is optional. This feature causes the breaker to ALARM
(programmable output contact closure) when
responding to a ground fault (the breaker will NOT trip).
Advanced Protection Functions
Neutral Protection (pickup and time
This protection function is designed to protect
the neutral from an overload condition (typical in
applications where there are harmonics).
Zone Selective Interlock (ZSI) is optional. Restraint
signals are available on Short Time, Ground Fault and
Instantaneous.
Reduced Energy Let-Through (RELT) is optional. This
feature allows a second instantaneous pickup setting
at a reduced level and is enabled via an external signal
(contact closure or communications).
TM
Trip Unit.
delay)
delay)
delay)
is standard.
is
delay)
is
is optional.
Page 7
GEH-702 Users Manual
6
Advanced Features and Communications
Basic Metering is standard. The metering option
displays
current for all three phases.
Advanced Metering is optional. This feature displays
current , voltage, real power, reactive power, apparent
power, peak power demand, energy, frequency, and
power factor for all three phases. Proper operation
of the advanced metering function requires multiple
system accessories including power supplies, voltage
conditioners, junction boxes, and interconnect cables.
Modbus Communications is optional. The
communications option allows the breaker/trip unit to
communicate all breaker data to an outside network.
Waveform Capture is optional. This option stores eight
cycles worth of data into digital memory that can be
output via the trip unit’s DB-15 connector, or over the
Modbus interface.
Two Programmable Output Contacts (two) are optional.
This feature is included on breakers/trip units that are
optioned with any of the following functions or features
• Ground Fault Alarm
• Zone Selective Interlock
• Reduced Energy Let-Through
• Protective Relays
Breakers/trip units optioned with any of the above
features have a 20-pin harness/connector and require
accessories that accommodate the 20-pin connector
(see section on equipment interfaces).
Rating Plugs
The microEntelliGuard
TM
Trip Unit uses a rating plug to
establish or change the current rating of the breaker.
Each breaker frame/sensor combination has multiple
rating plugs available that are interchangeable
within the trip unit . Rating plugs available for
microEntelliGuard
TM
Trip Units are shown in Table 2.
These rating plugs are compatible with EntelliGuard trip
units. Note that the same rating plug catalog number
can be used across multiple breaker sensor ratings.
For example, GTP0150U0104 is a 150 amp-rating plug
that can be used in the Spectra microEntelliGuard
TM
G
frame with 150 amp or 400 amp sensors.
Page 8
7
SG (Max
Amps)
SK
(Max Amps)
Rating
Plug
Product Numbers
Trip
Amps
150
400
600
800
1000
1200
GTP0060U01
01
60
X
GTP0080U01
01
80
X
GTP01
OOU01
03
100
X
GTP0125U0103
125
X
GTP0150U01
04
150
X X
GTP0200U0204
200
X
GTP0225U0306
225
X X
GTP0250U0407
250
X X
GTP0300U0408
300
X X X
GTP0350U0408
350
X X X
GTP0400U0410
400
X X X
GTP0450U0612
450
X X X X
GTP0500U0613
500
X X X X
GTP0600U0616
600
X X X X
GTP0700U0816
700
X X X
GTP0750U0820
750
X X X
GTP0800U0820
800
X X X
GTP0900U1020
900
X X
GTP1
OOOU1
025
1000
X X
GTP11
OOU1225
1100
X
GTP1200U1232
1200
X
GEH-702 Users Manual
Table 2.Rating Plug Catalog
Numbers
Page 9
8
GEH-702 Users Manual
CTB
arness
CTB C
arness
CTB C
arness
POWER (+24Vdc)
X X X
POWER (common)
X X X
Communications +
X X X
Communications -
X X X
Aux Switch (red)
X X
Aux Switch (white)
X X
Voltage – Ph A
X X
Voltage – Ph B
X X
Voltage – Ph C
X X
Neutral CT (black)
X X X
Neutral CT (white)
X X X
ZSI input +
X
ZSI input -
X
ZSI output +
X
ZSI output -
X
RELT input +
X
X
RELT input -
X
X
RELT output +
X
X
RELT/GFA output -
X
X
GFA output +
X
X
St
d.
Pr
otect
F
unction
Adv.
Pr
otect
F
unction
Adv.
Features
& Modbus
Example: SGHC3601….
L3 X
X
No Harness
L3 X
X
20-Pin Harness
L5 Any Any
20-Pin Harness
Any
Z,T,R, L,M,N,
V,P,S,W
Any
20-Pin Harness
Any Any 8
12-Pin Harness
All Other Cases
Breaker
Type
Breaker Current
Sensor Rating (S)
Catalog
Number
SG
150
400
600
TSRG201
TSRG204
TSRG206
SK
800
1200
TSKG408
TSKG412
Equipment Interfaces
Equipment interfaces for Spectra microEntelliGuard™
breakers require special attention be paid to the
wiring harness arrangement on the circuit breaker
which depends on the features and functions that are
selected for the microEntelliGuard™ Trip Unit . The three
wiring harness arrangements are NO harness, 12-Pin
harness, and 20-Pin harness. Table 3 identifies the
harness arrangement based on the last four digits of
the circuit breaker catalog number.
Table 3. Harness Type Definition
Note: Find the last four digits of the breaker catalog number in the table to identify
the harness type.
Neutral Current Transformers
Neutral CT’s are required on breakers optioned for
neutral protection. Neutral CT’s are also required on
breakers optioned for Ground Fault/Ground Fault Alarm
where the system voltage is three-phase/four-wire or
single phase/three-wire. The list of available neutral
CT’s is shown in Table 4.
Table 4. Neutral CT’s
CAUTION: Neutral-current sensors are required for
three-phase/four-wire and single-phase/three-wire
systems. When the trip unit is connected to a three
phase/three-wire system, the neutral-current sensor
terminals are left open. Do not short any neutralcurrent sensor terminals in a three-phase/three-
wire system, as this could result in damage to or
malfunction of the electrical system.
Terminal Blocks
Three different terminal block options are available for
Spectra microEntelliGuard
12-Pin harness have one option for a terminal block
where breakers with a 20-Pin harness have two
terminal block options. The table below shows the
terminal descriptions for each terminal block catalog
number.
Table 5. Terminal Block Descriptions
Termi al
escrip
TM
breakers. Breakers with a
-Pi
-Pi
-Pi
Connection to the neutral CT is made via a distribution
cable terminal block (three options) or a distribution
cable junction box (two options). Note: Terminal block
and junction box selection depends on the breaker
wiring harness, either a 12-Pin harness or 20-Pin
harness. Refer to Figure 1 for an example neutral CT
wiring connection diagram using a terminal block.
Terminal blocks are used for input and output
connections for multiple trip unit functions, metering,
and communications.
Page 10
9
GEH-702 Users Manual
Description
SDCJBB
SDCJBBC
Breaker Harness (qty. 1)
12-Pin
20-Pin
Output Harness (qty. 2)
12-Pin
12-Pin
Aux Switch (red/white)
X
X
Neutral CT (black/white)
X
X
Communications
X
X
ZSI input +/-
X
ZSI output +/-
X
RELT input X
Prog Contact output +/-
X
Prog Contact output +/-
X
Cat. No.
AC Source Rating
SPSAl20
120 Vac, one-phase input & one neutral input
1
SPSA208
208 Vac, two-phase inputs
SPSA240
240 Vac, two-phase inputs
SPSA480
480 Vac, two-phase inputs
2
SPSA600
600 Vac, two-phase inputs
2
Figure 1. Typical Neutral CT Connection Using a Terminal Block
Distribution Cable Junction Boxes
Two different distribution cable junction boxes are
available for Spectra microEntelliGuard
TM
breakers.
Breakers with a 12-Pin harness use catalog number
SDCJBB. Breakers with a 20-Pin harness use catalog
number SDCJBBC. The junction box serves as the
interconnection point between various shared input
and output signals, and also acts as the interface
between multiple breakers within a system.
Table 6. Junction Box Descriptions
The programmable contact output connections on
the SDCJBBC are dedicated if ground fault alarm and/
or reduced energy let-through features are optioned
in the trip unit . Otherwise, the output contacts can
be programmed to signal on various overcurrent trip
conditions and protective relays.
Power Supplies
An outside source of 24Vdc control power is required
for communications and waveform capture. Control
power is also required for programming the trip unit
under no-load or low-load conditions (less than 20%
of sensor rating). Control power connections to the
breaker can be made through the terminal block or the
distribution cable junction box. Five different power
supply plate assemblies are available. The power
supplies are rated 24 watts (+24 Vdc at 1.0 amps)
and have the capacity to power 20 Spectra breakers/
trip units over a length of 40 feet (total distance from
power supply to last breaker). The power supply plate
assemblies include the power supply, fuse protection
and a control power transformer for ac source voltages
over 240 VAC. All of these components are mounted on
a base plate. Table 7 lists the available power supply
plate assemblies. Figure 2 shows a typical power
supply connection using a terminal block.
Table 7. Power Supply Plate Catalog Numbers
1. Fuse protection on one leg only.
2. Contain a control power transformer to step the voltage down.
The power supply used in the power supply plate
assemblies is available as a stand-alone component
(catalog number SPSAA) and requires an 85-240 Vac,
60 Hz input.
Page 11
10
GEH-702 Users Manual
Catalog
Number
Source Voltage Rating
Comments
SVCA120Y
120 Vac conn.
to N potential)
SVCA208Y
208 Vac conn.
to potential)
SVCA240D
240 Vac Delta conn.
to potential)
SVCA277Y
277 Vac conn.
to N potential)
SVCA480Y
480 Vac conn.
to potential)
SVCA480D
480 Vac Delta conn.
to potential)
SVCA600D
600 Vac Delta conn.
to potential)
Figure 2. Typical Power Supply Connection Using a Terminal Block
Voltage Conditioners
System voltage inputs are required in order for some
advanced metering and protective relay functions to
operate correctly (any calculation involving voltage
such as power or undervoltage). Seven different
voltage conditioner plate assemblies are available.
The voltage conditioner used in the assembly has
the capacity to provide voltage-sensing signals to 20
Spectra breaker/trip units over a length of 40 feet (total
distance from voltage conditioner to last breaker). The
voltage conditioner requires +24 Vdc control power (see
section on Power Supplies). The voltage conditioner
plate assemblies include the voltage conditioner, fuse
protection and three 1-VA high-accuracy potential
transformers.
Table 8 lists the available voltage conditioner plate
assemblies. The voltage conditioner used in the
voltage conditioner plate assemblies is available as a
stand-alone component (catalog number SPSAA).
Table 8. Voltage Conditioner Plate Assemblies
Page 12
GEH-702 Users Manual
Catalog Number
Source Voltage Rating
Comments
ADSVMA120Y
120 Vac Wye conn.
to N potential
ADSVMA208Y
208 Vac Wye conn.
to potential
ADSVMA240D
240 Vac Delta conn.
to potential
ADSVMA277Y
277 Vac Wye conn.
to N potential
ADSVMA480Y
480 Vac Wye conn.
to potential
ADSVMA480D
480 Vac Delta conn.
to potential
ADSVMA600D
600 Vac Delta conn.
to potential
Catalog Number
No. of Switch Elements
Switch Rating
SAUXGAB1
SAUXGAB2
1 form C
2 form C
Gold-Plated
Contacts
0.5 A @ 30 V
Catalog Number
Length (in)
Wire Connectors
SDCHA11
11
12-Pin
SDCHA30
30
12-Pin
SDCHA60
60
12-Pin
Catalog Number
Length (in)
Wire Connectors
SDCAA6
6
12-Pin
SDCAA6C
6
20-Pin
Catalog Number
Length (in)
Wire Connectors
SDCEA30
30
12-Pin
SDCEA30C
30
20-Pin
Voltage Modules
For Spectra Series
TM
Switchboard applications involving
Spectra microEntelliGuard
TM
breakers that require
Table 10. Distribution Cable Harness Options
control power and voltage signals, modules are
available that incorporate both the power supply and
voltage conditioner (see Table 9). The modules are 5
“X” units high (6 7/8 inches) and mount in 45-inch wide
distribution sections. The modules connect to the
vertical bus bars in the switchboard and provide control
power and voltage signals to the system.
Table 9. Voltage Module Catalog Numbers
Extension cables are used to increase the length of
an existing cable. Because the Spectra
microEntelliGuard
TM
breakers come with both 12-Pin
and 20-Pin wiring harnesses, there are two different
extension cables available.
Table 11. Extension Cable Harness Options
Voltage exchange cables are available and are
necessary for breakers with advanced metering when
installed in group-mounted equipment. These cables
connect between the breaker and the distribution cable
junction box and reverse the voltage signals being
Mounting a distribution cable junction box in the front input to the breaker (from V AV BV C to VCVBVA). Refer to the
vertical upright of the switchboard across from the
Spectra microEntelliGuard
TM
breaker/trip unit permits
group mounting of the breaker. Group mounted
Spectra breakers with an auxiliary switch that connects
Phase Rotation description in the Setup Mode section
of this manual.
Table 12. Voltage Exchange Harness Options
to a junction box require a 1 “X” filler plate adjacent
to the breaker’s right-hand side to accommodate the
auxiliary switch wiring.
Distribution and Extension Cables Interconnection
cables are required if equipment interfaces such as the
distribution cable junction box, power supply plate
assembly, voltage conditioner plate assembly are used.
These cables transmit electronic signals and/or control
power between the various interconnected
components. There are two different types of
interconnection cables available for Spectra
microEntelliGuard
TM
breakers – distribution cables and
extension cables.
Auxiliary Switches
An auxiliary switch is used to monitor the state of the
circuit breaker main contacts. Spectra
microEntelliGuard
TM
breakers with communications are
capable of communicating the breaker position when
an auxiliary switch is installed and connected via a
terminal board or junction box. Note: auxiliary switches
with gold plated contacts are required.
Table 13. Auxiliary Switch Options
Distribution cables are used to interconnect the
junction box, power supply plate assembly, and voltage
conditioner plate assembly. These cables have 12-
Pin connectors and are available in three different
lengths. Table 10 shows the different lengths and their
associated catalog numbers.
11
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GEH-702 Users Manual
All Spectra circuit breakers use the same auxiliary
switches, which are installed in the breaker’s righthand accessory compartment. Group mounted
Spectra breakers with an auxiliary switch that connects
to a junction box require a 1 “X” filler plate adjacent
to the breaker’s right-hand side to accommodate the
auxiliary switch wiring.
Communications
The Spectra microEntelliGuard
with Modbus communications, which allows connection
to an external Modbus network and monitoring
platform. Connection to the network requires the
appropriate terminal board or junction box. Proper
operation of the circuit breaker’s protective functions is
not dependent on the communications network.
Spectra microEntelliGuard
with EnerVista Viewpoint power system software
allowing for remote monitoring and control of the
breaker. Viewpoint Monitoring automatically detects
Spectra microEntelliGuard
custom tailored monitoring screens, monitors power
quantities in real time (current, voltage, VARs, etc.), and
identifies the status of protected assets.
Reduced Energy Let-Through
Reduced energy let-through, or RELT, is an advanced
protective function that allows the trip unit to have
an alternate instantaneous pickup value. This
feature is intended to allow the user to set a lower
instantaneous pickup level and reduce the amount of
breaker let-through energy in the event of a fault . Trip
units optioned with the RELT function require either a
terminal board or junction box in order to wire the RELT
input and output signals. The RELT switch is enabled
via a 24V (AC or DC) signal across the input contacts or
via the Modbus communications network. This signal
can be derived from the power supply plate assembly
or it can be from a separate source. Trip units optioned
with the RELT function have dedicated input and output
contacts. The output contacts change state when the
RELT function is enabled. The output contacts are rated
1 amp, 60 Vac/Vdc. A RELT kit (catalog number GTURSK)
is available that provides an illuminated 3-position
selector switch allowing the user to select between
NORMAL, TEST, and ON positions. A typical wiring
diagram for the RELT connections is shown in Figure 3.
TM
breaker is available
TM
breakers are compatible
TM
breakers, generates
Figure 3. Typical RELT Wiring Diagram
Caution: Setting the RELT instantaneous pickup value
greater than the standard instantaneous pickup
value will result in higher breaker let-through energy
in the event of a fault . The factory default setting for
RELT instantaneous is 1.5 x sensor rating which is the
minimum setting value.
Zone Selective Interlock
Zone Selective Interlocking, or ZSI, is an advanced
protective function that allows one ZSI enabled trip
unit to communicate with another ZSI enabled trip
unit . The microEntelliGuard
TM
trip unit is available
with ZSI signaling on the short time, ground fault,
and instantaneous functions. In the event of an
overcurrent pickup condition, the downstream ZSI trip
unit signals the upstream ZSI trip unit to temporarily
change the affected pickup settings to values that
allow the downstream trip unit/breaker to respond to
the overcurrent condition (and the upstream breaker to
remain closed and continue to service other loads).
Trip units optioned with the ZSI function require either
a terminal board or junction box in order to wire the
ZSI input and output signals and +24Vdc control power.
A ZSI module (catalog number TIM1) is available that
allows multiple ZSI enabled trip units to communicate
with one another for optimal system selectivity.
Page 14
GEH-702 Users Manual
Figure 4. Typical microEntelliGuard
TM
S
ystem
13
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GEH-702 Users Manual
Up
Scroll up or increment value
↓
Down
Scroll down or decrement value
→
Right
Next function or next page
←
Left
Previous function or previous page
Enter
Save or set into memory
Section 2
microEntelliGuard
TM
Trip Unit
Overview
The microEntelliGuard
most advanced trip unit available in the Spectra line
of molded case circuit breakers. The trip unit design is
based on the EntelliGuard
the EntelliGuard
microEntelliGuard
G & K frame circuit breakers. The next sections of this
instruction review the trip unit’s HMI (Human Machine
Interface), power requirements, operating modes,
and communications. If you are familiar with the
EntelliGuard
TM
Trip Unit , then many of the following
sections will be familiar to you.
Figure 5. LED Location
HMI
The microEntelliGuard
membrane
an LED indicator.
keypad,
TM
Trip Unit is the latest and
TM
TM
Trip Unit (which is removable), the
TM
Trip Unit is integral to the Spectra
LED
a liquid crystal
Trip Unit platform. Unlike
TM
HMI consists of a five-button
display
(LCD), and
The membrane
to navigate between the various operating modes and
set up screens. The pushbuttons are raised, which helps
with programming in low-light conditions. The effects
of each pushbutton are shown in the following figure.
Figure 6. Keypad Definition
keypad
has five pushbuttons that are used
Pushing and holding the UP and DOWN buttons causes
the
displayed
decr
ement. The RIGHT, LEFT, and ENTER buttons
value to continuously increment or
operate with individual keystrokes. Pressing and
holding the LEFT button causes the trip unit to return to
the “home” screen.
Figure 7. Typical LCD Screen
It is important to note that any programmable value
that is changed is NOT saved until the ENTER key
is pushed and that the ENTER key is pushed before
proceeding to the next or previous programming
screen. Advancing to the next screen or returning to a
previous screen without hitting the ENTER key causes
any changes to be lost .
Liquid Crystal Display and Power Requirements
The LCD is the visual interface that
displays
operating modes and setup screens of the trip unit .
Input power is required in order to illuminate the
microEntelliGuard
display
screens or making changes to setup values.
TM
Trip Unit’s LCD for viewing the
Any of the following power sources can be used.
Load Current – the trip unit will “self power” and
illuminate the LCD when sufficient current passes
through the circuit breaker. Sufficient current is defined
as 20% of the breaker’s sensor rating. A breaker
with 150 amp sensors requires at least 30 amps to
illuminate the LCD.
24 Vdc Control Power – microEntelliGuard
with 12-Pin and 20-Pin wiring harnesses can be
connected to 24 Vdc control power via a terminal board
connection or a junction box to illuminate the LCD.
the
TM
Trip Units
Page 16
GEH-702 Users Manual
Breaker/Trip Unit Status
LED Sequence
NORMAL
ON-OFF-ON-OFF (wait for 2 sec)
PICKUP
ON-OFF-ON-OFF (continuous)
TRIP
ON-OFF (wait 2 sec)
ERROR
ON-OFF-ON-OFF-ON-OFF (wait 2 sec)
Digital Test Kit – the EntelliGuard test kit (catalog number
GTUTK20) connects to the microEntelliGuard
TM
DB-15
connector and provides 24 Vdc power to illuminate the LCD.
Portable Battery Pack – the Spectra portable battery
pack (catalog number TVPBP) in conjunction with an
adapter cable (TVPBPACC) connects to the
microEntelliGuard
Vdc power to illuminate the LCD.
LED Status Indicator
The microEntelliGuard
indicator, which signals the status of the trip
unit/breaker. There are four different status conditions.
NORMAL status means the breaker and trip unit are
functioning properly and that the trip unit is NOT in a
pickup condition. PICKUP status means that one of the
over-current protective functions or protective relays
has gone into pickup and that a trip is imminent. TRIP
status means that the breaker/trip unit has tripped due
to an over-current protective function, protective relay,
or trip unit error. ERROR status can mean any number
of conditions (for example, the rating plug is missing or
an improper rating plug is installed). In the event that
the LED sequence indicates an ERROR, check the error
code in the trip unit’s status menu. To reset the LED
pattern, once the issue is corrected, hold down the right
arrow key for two seconds.
Table 14. LED Status Flash Sequence
Trip Unit Operating Modes
The microEntelliGuard
operating modes. They are SETUP, METERING, STATUS,
and EVENTS. The SETUP mode is used to make
changes to all of the adjustable parameters optioned
in the trip unit. The METERING mode
current in each phase of the breaker. Trip units that
are optioned with advanced metering can display
voltage, power, and other pertinent parameters
associated with the system voltage. The STATUS mode
displays
settings, if the trip unit is in pickup mode, the position
of the breaker’s main contacts (requires installation of
pertinent information on trip unit protection
TM
DB-15 connector and provides 24
TM
HMI includes a green LED status
TM
trip unit has four different
displays
the
auxiliary switch) and communications settings. The
EVENTS mode displays information regarding overcurrent events.
Setup Mode
The following instructions describe setup procedures
for all of the available trip unit functions. All
microEntelliGuard
TM
Trip Units have adjustable long
time, short time and instantaneous over-current
protection options as well as a selectable ammeter.
All other functions are optional and depend on how
the trip unit is optioned. If a specific trip unit function
has not been optioned, that function will not appear
in the display. Setting for the over current protective
parameters (long time, short time, instantaneous,
and ground fault) establish the shape of the trip unit/
breaker’s time current curve. All optioned trip unit
parameters are factory preset values (reference
appendix A for factory preset values).
Prior to setting up the trip unit, ensure that
• An appropriate rating plug is installed (the trip unit
automatically checks and records the value of the
installed rating plug and will issue an error if the
rating plug is not appropriate or missing).
• A professional engineer has performed a system
coordination study and provided the appropriate
setup values to be programmed into the trip unit
(inappropriate setup values can cause the breaker to
trip
unexpectedly
or not provide the intended circuit
protection).
• The LCD is illuminated via an appropriate power source.
When the LCD is first illuminated, the “home” page
displays
buttons on the
When STATUS is highlighted, push the right button to
get into the SETUP screens. Use the RIGHT and LEFT
buttons to move to the various setup options. Use the
UP and DOWN buttons to change parameter values.
Any value that is changed using the UP or DOWN
buttons will flash to indicate that a change has been
made. Note: values that are changed must be saved
to memory on the screen in which they were changed.
Press and hold the ENTER button to save changes.
Failure to save setting changes before proceeding
to the next screen causes the setting to return to its
previous setting. Always confirm trip unit settings after
making changes by exiting and re-entering the SETUP
mode and rechecking each setting.
SETUP, METERING, STATUS, EVENTS. Use the
keypad
to move up and down the menu.
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GEH-702 Users Manual
Band
Delay (sec)
@ 600%
Band
Delay (sec)
@ 600%
Band
Delay (sec)
@ 300%
MVT1
3
C1
0.3
F1
0.2
MVT2
6
C2
0.5
F2
0.4
MVT3
12
C3
0.8
F3
0.8
MVT4
25
C4
1.2
F4
2
C5 2 F5
4
C6 3 F6
10
C7 5 F7
20
C8
7
C9
12
C10
18
Language (Standard)
This setpoint is used to establish the language that is
displayed
in the LCD. The available language choices
are English, French, Spanish, German, and Chinese. The
default language is English.
Long Time Pickup (Standard)
This setpoint is used in establishing the breaker’s nominal
ampere rating and is a function of the rating plug installed
in the trip unit. The breaker’s nominal ampere rating “C”,
is calculated by multiplying the long time pickup value
times the rating plug value “X”. The available range of
long time pick up values is 0.5 to 1.0 in increments of 0.05.
Example:
Rating Plug = 800 amps
LT Pickup Setting = 0.50
LT Pickup Value = Nominal Ampere Rating “C” =
800 amps x 0.50 = 400 amps
current curve. Three different long time curve shapes
are available:
MVT > proportional to current squared; same as
Spectra MicroVersaTrip® TCC
C > similar to thermal magnetic circuit breaker TCC
F > proportional to current to the fourth power;
similar to fuse TCC
The nominal time
delays
for each setting are listed below.
Table 15. Nominal Time Delays
Figure 8. Long Time Pickup
Long Time Delay (Standard)
This set point is used to allow momentary overloads
without nuisance tripping the breaker. It is also used to
establish the shape of the thermal portion of the time
Note: The MVT4, and C10 settings are not available on Spectra G Frame.
Figure 9. Long Time Delay
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GEH-702 Users Manual
Short Time Pickup (Standard)
This set point is used to establish the short time pickup
of the trip unit. The short time pickup of the trip unit is
calculated by multiplying the short time pickup value
times the breaker’s nominal ampere rating “C”. It is
important to note that changes to the long time pickup
value affect the short time pickup value. The available
range of short time pickup values is 1.5 to 9.0 in
increments of 0.5. The short time pickup parameter can
also be turned OFF. This is accomplished in the short
time
delay
menu.
Example:
Breaker Nominal Ampere Rating “C” = 400 amps
ST Pickup Setting = 9.0
ST Pickup Rating = 400 amps x 9.0 = 3,600 amps
Figure 11. Short Time Delay with Slope Off
Figure 10. Short Time Pickup
Short Time Delay (Standard)
This set point is used to allow momentary inrush
currents without nuisance tripping the breaker. It is also
used to establish the shape of the short time portion of
the time current curve. Twelve time delay bands and
four curve slopes are available. The short time
a function of both the time delay band and the slope.
17
delay
is
Figure 12. Short Time Delay Set to Maximum
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GEH-702 Users Manual
INST Pickup Setting = 9.0
INST Trip Value = 800 amps x 9.0 = 7,200 amps
Breaker
Interrupt
Tier
Sensor /
CT
MIN
INSTPU
Max
INSTPU
Spectra G
H, L, P
All
2.0
10.0
Spectra K
H, L, P
All
2.0
10.0
T, S
800
2.0
25.5
1000
2.0
20.5
1200
2.0
17.0
Instantaneous Pickup (Standard)
This set point is used to establish the ampere value
that
immediately
causes the breaker to trip. The
instantaneous trip value is calculated by multiplying
the setting value times the breaker sensor value. The
available range of instantaneous pickup values are
shown below. Maximum settings are dependent on
breaker frame and sensor rating:
Table 16. Available Instantaneous Pickup
Reference Appendix A: Table 27 for Instantaneous Pickup increments
Example:
Breaker Sensor “S” = 800 amps
Figure 13. Instantaneous Pickup
Reduced Energy Let-Through (RELT) Instantaneous
Pickup (Optional)
This set point is used to establish the ampere value that
immediately
causes the breaker to trip when the
breaker/trip unit is set to the RELT mode via an input
signal or communications. The RELT instantaneous trip
value is calculated by multiplying the setting value
times the breaker sensor value. The available range
of RELT instantaneous pickup values is 1.5 to 10.0 in
increments of 0.5.
Ground Fault Pickup (Trip or Alarm) (Optional) This
set point is used to establish the ampere value that
causes the breaker to trip/alarm under a ground fault
condition. Trip units can be optioned to have either
ground fault TRIP or ground fault ALARM. When
optioned with ground fault TRIP, the breaker will trip
when a ground fault is sensed and exceeds the setup
parameters. When optioned with ground fault ALARM,
the breaker will not trip when a ground fault is sensed
and exceeds the setup parameters. Instead, a set of
output contacts will change state allowing signaling
to an external control device (output contacts require
the proper terminal board or junction box accessory).
The ground fault trip/alarm value is calculated by
multiplying the setting value times the circuit breaker’s
sensor value “S”. The available range of ground fault
trip/alarm values is 0.40 to 1.0 in increments of 0.01.
Example:
Breaker Sensor “S” = 1200 amps
GF Pickup Setting = 8.0
GF Trip Value = 1200 amps x 8.0 = 9,600 amps
Figure 14. Ground Fault Pickup
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GEH-702 Users Manual
Ground Fault Delay (Trip or Alarm) (Optional)
This set point is used to allow momentary ground fault
currents without nuisance tripping the breaker. It is also
used to establish the shape of the ground fault time
current curve. Fifteen time
delay
bands and four curve
slopes are available (slope equal to zero represents
zero slope or I2t OUT). The ground fault time
function of both the time
Figure 15. Ground Fault Delay
delay
band and the slope.
delay
is a
Zone Selective Interlock (ZSI) (Optional)
Zone Selective Interlock set points are available for
Short Time (ST) and Ground Fault (GF). The set point
includes the pickup, time
delay,
and slope parameters.
The ZSI Short Time pickup setting is used to establish
the ST pickup of the trip unit when another ZSI trip unit
signals it . The ZSI ST pickup is calculated by multiplying
the ZSI ST pickup value times the breaker’s nominal
ampere rating “C”. It is important to note that changes
to the long time pickup value affect the ZSI ST pickup
value. The available range of ZSI ST pickup values is 1.5
to 9.0 in increments of 0.5.
The ZSI ST delay setting is used to establish the ST delay
of the trip unit when another ZSI trip unit signals it. This
setting is used to allow momentary inrush currents
without nuisance tripping the breaker. Twelve time
delay
bands and four curve slopes are available. The
ZSI ST delay is a function of both the time delay band
and the slope.
The ZSI Ground Fault pickup setting is used to establish
the GF pickup of the trip unit when another ZSI trip unit
signals it . The ZSI GF pickup is calculated by multiplying
the ZSI GF pickup value times the breaker’s sensor
value “S”. The available range of ZSI GF pickup values is
0.4 to 1.0 in increments of 0.05.
The ZSI GF
delay
it . This setting is used to allow momentary inrush
currents without nuisance tripping the breaker. Fifteen
time
The ZSI GF
band and the slope.
NOTE - the trip unit’s primary ST pickup value is
interdependent with the ZSI ST pickup value. Changing
the ZSI ST pickup value automatically changes the
primary ST pickup value to the same value as the ZSI ST
value. This
pickup and the trip unit’s primary GF pickup setting.
Zone Selective Interlock is also available for the
instantaneous (INST) trip function. This feature only
functions as an output signal to an upstream trip unit
optioned with ZSI INST (Spectra microEntelliGuard
breakers cannot accept a ZSI INST input signal).
With this feature enabled, a ZSI signal is sent to the
upstream trip unit when the trip unit responds to an
instantaneous inrush current. No settings are available
for the ZSI Instantaneous set point other than enabling
the feature per the table below.
There are multiple combinations of ST/GF/INST that can
be enabled. The available combinations of setting ZSI
are as follows:
delay
setting is used to establish the GF
of the trip unit when another ZSI trip unit signals
delay
bands and four curve slopes are available.
delay
is a function of both the time delay
interdependency
also applies to the ZSI GF
TM
19
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GEH-702 Users Manual
ZSI (ST/GF) enabled
ZSI (ST/GF/INST) enabled
OFF
OFF
GF only
GF only
GF, ST
GF, ST
ST only
ST only
ST, INST
ST, GF, INST
Table 17. ZSI Settings
Neutral Protection Pickup (Optional)
This set point is used to provide overcurrent protection
on the system neutral. Overcurrent protection on
the system neutral is directly proportional to the
parameters previously established for both the Long
Time and Short Time pickup settings. The available
settings for this parameter are OFF, 50%, 100% and 150%.
This optional set point requires a neutral CT connection
and the appropriate equipment interfaces.
Protective Relays (Optional)
Voltage Unbalance Relay Pickup – this relay compares
the highest and lowest true RMS phase voltage with
the average of all phase voltages and initiates a trip or
alarm is the difference exceeds the set point pickup and
delay values. The available range of voltage unbalance
set point values is 10% to 50% in increments of 1%.
Voltage Unbalance Relay Delay – this setting enables a
time
delay
from the point of pickup to the initiation of
a trip signal. The available range of time delay settings
is 1 to 15 seconds in increments of 1 second. Choosing
OFF disables the relay.
Current Unbalance Relay Pickup – this relay compares
the highest and lowest true RMS phase current with
the average of all phase currents and initiates a trip or
alarm is the difference exceeds the set point pickup and
delay values. The available range of current unbalance
set point values is 10% to 50% in increments of 1%.
Current Unbalance Relay Delay – this setting enables a
time
delay
from the point of pickup to the initiation of
a trip signal. The available range of time delay settings
is 1 to 15 seconds in increments of 1 second. Choosing
OFF disables the relay.
Under Voltage Relay Pickup – this relay measures the
true RMS phase voltage in all phases and initiates a trip
or alarm if any phase voltage drops below the set point
and
delay
values. The available range of under voltage
set point values is 50% to 90% of the nominal voltage
in increments of 1%.
Under Voltage Relay Delay – this setting enables a time
delay
from the point of pickup to the initiation of a trip
signal. The available range of time
delay
settings is 1
to 15 seconds in increments of 1 second. Choosing OFF
disables the relay.
Over Voltage Relay Pickup – this relay measures the
true RMS phase voltage in all phases and initiates a trip
or alarm if any phase voltage exceeds the set point and
delay
values. The available range of over voltage set
point values is 110% to 150% of the nominal voltage in
increments of 1%.
Over Voltage Relay Delay – this setting enables a time
delay from the point of pickup to the initiation of a trip
signal. The available range of time
to 15 seconds in increments of 1 second. Choosing OFF
disables the relay.
delay
settings is 1
Power Reversal Relay Pickup – this relay measures
the direction of power flow through the breaker and
initiates a trip or alarm if a sufficient magnitude of
reverse power is detected. The available range of
power reversal set point values is 10 to 990 kW in
increments of 10 kW.
Power Reversal Relay Delay – this setting enables a
time
delay
from the point of pickup to the initiation of
a trip signal. The available range of time delay settings
is 1 to 15 seconds in increments of 1 second. Choosing
OFF disables the relay.
Load Alarm – this relay is also referred to as the load
shedding relay. The purpose of this relay is to signal
that the breaker is approaching a percentage of the trip
unit’s established ampere rating “C” (long time setting x
rating plug value). There are two set points associated
with this relay; Load Alarm ON and Load Alarm OFF.
The Load Alarm OFF setting is interdependent on the
Load Alarm ON setting.
The range of available settings for Load Alarm ON is
0.55 to 1.00 in increments of 0.05. This value multiplied
by the ampere rating “C” establishes the current that
the Load Alarm relay changes state.
Page 22
GEH-702 Users Manual
Relay 1 & 2 Setup Options
Assignment
Group 1
Ground Fault Alarm
Group 2
Over Current Trip
Group 3
Protective Relay Trip
Group 4
Load Alarm (Load Shedding)
Group 5
Health Status
Group 6
RELT
Setup Options
Disable
Manual
Over Current
Prot . Relay
Option 1
X
Option 2
X
Option 3
X
Option 4
X
Option 5
X
X
Option 6
X
X
Option 7
X
X
Option 8
X X X
The range of available settings for Load Alarm OFF is
0.50 to 0.95 in increments of 0.05. This value multiplied
by the ampere rating “C” establishes the current that
the Load Alarm relay returns to its original state. The
Load Alarm OFF setting must always be less than the
Load Alarm ON setting.
Input/Output Relays (Optional)
Breakers that are optioned with a 20-Pin harness are
enabled with an Input Relay function. If the Reduced
Energy Let-Through (RELT) function is also optioned,
then the input relay is dedicated to a RELT input signal
and there will be no setup screen. If the RELT function
is not optioned, then the input relay can be used as a
shunting device to trip the breaker. A 24Vac/Vdc signal
is required. The available settings are TRIP or OFF.
Breakers that are optioned with a 20-Pin harness are
enabled with two programmable output relays. These
relays are used as a signaling means for functions such
as ground fault alarm, reduced energy let-through,
zone selective interlocking, protective relays, load
alarm, health status, or an overcurrent trip condition.
For trip units optioned with reduced energy let-through
(RELT), RELAY 2 is dedicated to the RELT output function.
In the setup mode, there are six groups assigned to
RELAY 1 and RELAY 2. The table below describes the
function associated with each group.
Table 18. Output Relay Group Assignments
Relays 1 and 2 will change state in the event that the
function assigned to that relay experiences an event.
The relays are rated 1 amp, 60Vac/Vdc. The Group 5
“Health Status” assignment will cause a contact closure
in the event that the trip unit’s self-diagnostic feature
detects that the trip unit has malfunctioned.
Waveform Capture (Optional)
When a fault has taken place, it is important to visualize
the event. The Waveform Capture option included in the
advanced trip unit can track and visualize any fault
event. The device tracks eight cycles, four before and
four after the event, with resolution of
48 samples per cycle at 60Hz, and stores the results in
memory. It registers events in all three phases and the
neutral. After the event, the waveform is stored in
COMTrade format and can be accessed by using the
waveform client module of the EnerVista software.
The available setup options for this feature are as follows:
Table 19. Waveform Capture Setup
Each recording event overwrites the previously stored
data. A Modbus command is required to trigger
Manual waveform capture. An outside source of 24Vdc
control power is required for communications and
waveform capture.
Frequency (Standard)
This set point establishes the system frequency. The
available settings for frequency are 50 Hz and 60 Hz.
Potential Transformer Primary Voltage (Optional)
This set point establishes the primary voltage rating of
the potential transformers. The PT Voltage value is used
in calculations for the metering function. The available
range of potential transformer primary voltage is 100
to 690 in steps of 1.
Potential Transformer Connection (Optional) This set
point establishes how voltage and power options are
displayed
for potential transformer connection are PH-PH (phaseto-phase) or PH-N (phase-to-neutral).
in the metering mode. The available choices
21
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GEH-702 Users Manual
Power Direction (Optional)
This set point establishes the normal direction of current
flow in the breaker. There are two available choices. A
DOWN Arrow represents current flowing from Line to
Load. An UP Arrow represents current flowing from
Load to Line (reverse fed).
Phase Rotation (Standard)
The Phase Rotation setup feature is used for Spectra
microEntelliGuard
TM
breakers that are mounted backto-back in group-mounted equipment applications.
This feature identifies the orientation of the breaker
pole connections to the equipment bus. There are
two available setup choices; ABC represents the left
pole of the breaker being connected to bus Phase
A. CBA represents the right pole of the breaker being
connected to bus Phase A.
Trip units with Phase Rotation set to CBA (right pole of
breaker connected to bus Phase A) that are optioned
with advanced metering and also utilize voltage input
signals require a voltage exchange cable in order to
transpose the voltage signal. Figure XX illustrates a
typical group-mounted equipment installation with a
voltage exchange cable.
Figure 16. System With Voltage Exchange Cable
Thermal Memory (Standard)
The available Thermal Memory settings are YES and NO.
Selecting YES enables the thermal memory software to
digitally
store the breaker’s heating/ thermal
characteristics as a function of current and time. With
thermal memory enabled, in the event of a trip and a
subsequent contact re-closure, the trip unit will recall
the breaker’s heating/thermal characteristics and use
this information in future overcurrent calculations. This
feature requires 24Vdc control power. Selecting NO
disables this function.
Auxiliary Switch (Standard)
The available Auxiliary Switch Installed settings are YES
and NO. Selecting YES enables the trip unit to monitor
and
display
the state of the circuit breaker main
contacts (in the STATUS mode). Spectra
microEntelliGuard
TM
breakers with communications are
capable of communicating the breaker position when
an auxiliary switch is installed and connected via a
terminal board or junction box. Selecting NO disables
this function.
Modbus (Optional)
The Modbus communications set points set the
communication baud rate and the Modbus address for
the breaker. The baud rate can be set to any standard
baud rate from 300 to 19,200 with even, odd or no
parity. The default value is 19,200 with eight-bit word
length, no parity and one stop bit . The default Modbus
address is one.
Date and Time (Standard)
This set point establishes a date and time in the breaker
that can be used to time stamp events in the event log.
The time and date field are also available over Modbus.
It should be noted that removing all power from the unit
(no external 24VDC source and less than 20% current
flow through the breaker) will cause the time and date
to be reset to the factory
default
. The date setting is
year, month and day. The time setting is hour, minutes
and seconds.
Page 24
GEH-702 Users Manual
Metering Mode
Spectra microEntelliGuard
TM
breakers are available with
basic and advanced metering options. Basic metering
includes an ammeter that
displays
phase currents only.
Advanced metering includes an ammeter and voltmeter
and can
display
energy, real power, apparent power,
and frequency. Current and voltage are computed as
true RMS values. All metering displays are computed
and updated at a rate of one times per second. All
values, except frequency, are
displayed
to three
significant figures. For example, current might be
displayed
unit must be energized to
to the power requirements section of this instruction).
as 60.7 amps, 492 amps, or 1.20 kA. The trip
display
metered values (refer
Operating Mode
To enter the metering mode from the “home” page
(SETUP, METERING, STATUS, EVENTS) press the UP or
DOWN button until METERING is highlighted and then
push the right button to get into the METERING screens.
Use the RIGHT and LEFT buttons to move to the various
metering options. Use the UP and DOWN buttons to
cycle
between phases A, B, and C. The following sections
describe each of the different metering screens.
Current (all trip units)
This screen displays RMS current on phases A, B, and C.
Any current value less than 5% of the breaker’s current
sensor rating is
displayed
as zero.
Voltage (advanced metering only)
This screen
The value of voltage
displays
RMS current on phases A, B, and C.
displayed
depends on how the trip
unit was configured in the SETUP mode (reference the
Potential Transformer Connection section on page
21). If the breaker was configured with line-to-neutral
connections, the
display
will show individual phase
voltages. If the breaker was configured with line-to-line
connections, the
display
will show voltages between
phases.
Real Power (advanced metering only)
This screen
A, B, and C. The value of power
displays
real power on or between phases
displayed
depends on
how the trip unit was configured in the SETUP mode
(reference the Potential Transformer Connection
section on page 21). If the breaker was configured with
line-to-neutral connections, the
display
will show the
real power in each phase. If the breaker was configured
with line-to-line connections, the
display
will show the
aggregate power. Display values will range from 0 to
999 kW or from 1.00 to 999 MW.
Reactive Power (advanced metering only)
This screen
displays
reactive power on or between
phases A, B, and C. The value of power displayed
depends on how the trip unit was configured in the
SETUP mode (reference the Potential Transformer
Connection section on page 21). If the breaker was
configured with line-to-neutral connections, the display
will show the reactive power in each phase. If the
breaker was configured with line-to-line connections,
the
display
will show the aggregate power. Display
values will range from 0 to 999 kVAR or from 1.00 to
999 MVAR.
Apparent Power (advanced metering only)
This screen
displays
apparent power on or between
phases A, B, and C. The value of power displayed
depends on how the trip unit was configured in the
SETUP mode (reference the Potential Transformer
Connection section on page 21). If the breaker was
configured with line-to-neutral connections, the display
will show the apparent power in each phase. If the
breaker was configured with line-to-line connections, the
display
will range from 0 to 999 kVA or from 1.00 to 999 MVA.
will show the aggregate power. Display values
Peak Power Demand (advanced metering only) This
screen
phases A, B, and C. There are two values
displays
the peak power demand on or between
displayed
on
the peak power screen. The first value shows the power
demand in the most recent interval. The second value
displays
the maximum power that has been measured.
Display values will range from 0 to
999 kW or from 1.00 to 999 MW.
23
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GEH-702 Users Manual
Energy (advanced metering only)
This screen
the breaker. The value of energy
displays
the aggregate energy flow through
displayed
depends on
how the trip unit was configured in the SETUP mode
(reference the Power Direction section on page 22). A
DOWN Arrow represents current flowing from Line to
Load. An UP Arrow represents current flowing from
Load to Line - reverse fed). Energy is continuously
accumulated while the breaker is energized. The value
displayed
can be reset with a Modbus command.
Display values range from 0 to 999 kWh or from 1.00
to 999 MWh. When 999MWh is exceeded, the display
reverts back to 0 kWh. A counter is available via the
Modbus communications port that will indicate if the
display
has exceeded the 999MWh value.
Frequency (advanced metering only)
The frequency screen
displays
the system frequency
as measured by the trip unit. The frequency is
displayed
in Hertz.
Power Factor (advanced metering only)
The power factor screen
displays
the system power
factor as measured by the trip unit. The power factor is
displayed
as a percentage.
Settings Mode
Spectra microEntelliGuard
mode. This mode allows convenient review of the
breaker settings without moving through all of the
setup screens.
Setting Status
The setting status screen
settings for short time, long time, and instantaneous
protections in a tabular format. It is normal to see dashes
where a particular setting does not
non-applicable setting is instantaneous delay.
TM
breakers include a settings
displays
the pickup and delay
apply.
An example of a
Pickup Status
Pickup status blinks the word pickup if the breaker has
detected a fault but not yet tripped. If the system load
decreases before the trip occurs this screen will return
to only the top line of the screen and stop blinking.
Error Status
The error status screen will
display
any error that has
been detected by the system. The errors are defined in
appendix E of this
document
.
Version
The version screen
displays
the software version
and build date. This information may be required if
a problem is encountered in the system and phone
support is necessary.
Comm Settings
The communication settings
display
the baud rate and
parity setting that have been selected for
communication. If either of these values do not match
the communication host, communication with the unit
will not be possible.
Events Mode
Spectra microEntelliGuard
queue. This queue allows review of the last 10 trips that
have happened on the system. The first event, called
Event 1, is the most recent event . The tenth event is the
oldest event in the memory. Each event will
trip type, phase, count, and level of fault that caused
the trip. The event log can be cleared of all trip events
by simultaneously pressing the up and down buttons.
TM
breakers include an event
display
the
Page 26
GEH-702 Users Manual
Function
Title (as implemented)
Min. Value
Max. Value
Default Setting
Setting Choices
Language
LANGUAGE
ENGLISH
FRANÇAIS
ENGLISH
English, Français, Español,Deutsch, Chinese
Long Time
LONG TIME PICKUP
0.5
1.0
1.0
0.50X to 1.00X steps of 0.05X
LONG TIME DELAY BAND
MVT1
F7 CB 6
MVT1-4, C1-C10, F1-F7
(Max. values vary by frame)
Short Time
SHORT TIME PICKUP
1.5
9.0
1.5
1.5C to 9.0C steps of 0.5C
SHORT TIME DELAY BAND
1
12 5 1 to 12 time bands
SHORT TIME SLOPE
0 3 0
0 to 3
Instantaneous
INSTANTANEOUS PICKUP
2.0
25.5
2.0
2.0X to 14.0X steps of 0.5X
15.0X to 19.0X steps of 1.0X
20.5X to 25.0 steps of 1.5X
25.5X (Max. values vary by frame)
Reduced Energy
Let Through
RELT INST PICKUP
1.5 10 1.5 1.5X to 10.0X steps of 0.5X
Ground Fault
GF TRIP PICKUP
0.4
1.0
1.0
0.4S to 1.0S steps of 0.05S
GF TRIP DELAY BAND
OFF
15 5 OFF or 2 to 15 time bands
GF TRIP SLOPE
0 3 0
0 to 3
GF ALARM PICKUP
0.4
1.0
1.0
0.4S to 1.0S steps of 0.05S
GF ALARM DELAY BAND
OFF
15 5 OFF or 2 to 15 time bands
GF ALARM SLOPE
0 3 0
0 to 3
Zone Selective
Interlock
ZONE SEL INTLK
OFF
GF/ST/INST
OFF
GF, GF/ST, ST, ST/INST, GF/ST/INST
ZSI ST PICKUP
1.5
9.0
1.0
1.5C to 9.0C steps of 0.5C
ZSI ST DELAY BAND
1
12 6 1 to 12 time bands
ZSI ST SLOPE
0 3 0
0 to 3
ZSI GF PICKUP
0.4
1.0
1.0
0.4S to 1.0S steps of 0.05S
ZSI GF DELAY BAND
OFF
15 5 OFF or 1 to 15 time bands
ZSI GF SLOPE
0 3 O
0 to 3
Neutral Protection
NEUTRAL PROT
OFF
150%
OFF
OFF, 50%, 100%, 150%
Protective Relays
PROT RLY ENABLE
ON
OFF
OFF
ON, OFF
VOLTAGE UNBAL PICKUP
10%
50%
10%
10% to 50% steps of 1%
VOLTAGE UNBAL DELAY
OFF
15 1 OFF or 1 to 15 Seconds steps of 1 Second
TRIP ON ZERO V
ON
OFF
OFF
ON, OFF
CURRENT UNBAL PICKUP
10%
50%
10%
10% to 50% steps of 1%
CURRENT UNBAL DELAY
OFF
15 1 OFF or 1 to 15 Seconds steps of 1 Second
UNDER VOLTAGE PICKUP
50%
90%
50%
50% to 90% steps of 1%
UNDER VOLTAGE DELAY
OFF
15 1 OFF or 1 to 15 Seconds steps of 1 Second
OVER VOLTAGE PICKUP
110%
150%
110%
110% to 150% steps of 1%
OVER VOLTAGE DELAY
OFF
15 1 OFF or 1 to 15 Seconds steps of 1 Second
POWER REVERSAL PICKUP
10
990
10
10KW to 990KW steps of 10KW
POWER REVERSAL DELAY
1
15 1 1 to 15 Seconds steps of 1 Second
LOAD ALARM ON
0.55
1.0
.55
0.55 to 1.00 xLT steps of 0.05
LOAD ALARM OFF
0.5 0.95 .5
0.50 to 0.95 xLT steps of 0.05
Note: OFF must be less than ON value
Appendix A. Display Screen Flow
Table 20. Setup Mode Programming
25
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GEH-702 Users Manual
Function
Title (as implemented)
Min. Value
Max. Value
Default Setting
Setting Choices
Inputs and Outputs
INPUT 1 (if not RELT optioned)
TRIP
OFF
OFF
RELAY 1
OFF
GROUP 6
OFF [GROUP 6 if
RELT Enabled]
Fixed to GROUP 6 if RELT is optioned, else
available options are GROUP 1 to 5.
GROUP 1: GF Alarm
GROUP 2: Over Current Trip
GROUP 3: Protective Relay Trip
GROUP 4: Load Alarm
GROUP 5: Health Status
GROUP 6: RELT
RELAY 2
OFF GROUP 6
OFF [GROUP 6 if
RELT Enabled]
Available options are GROUP 1 to 6 if RELT
is optioned, else GROUP 1 to 5
Waveform
Capture
WAVEFORM CAPTURE
DISABLE
ALL
ALL
Available options are:
Disable, Manual, OverC
urrent
, Protective
Relays, M
anual
/OverC
urrent
, Manual/
ProtectiveRelays,
OverC urrent/
ProtectiveRelays,
All
Frequency
FREQUENCY
50Hz
60Hz
60
50Hz, 60Hz
Operating Voltage
PT VOLTAGE
100 690 480
100 to 690 Volts
steps of 1 Volt
PT CONNECTION
PH-PH
PH-N
PH-PH
PH-PH, PH-N
Power Direction
POWER DIRECTION
UP
DOWN
DOWN
UP, DOWN
Phase Rotation
Setup
PHASE ROTATION
ABC CBA ABC Available Options: ABC, CBA
Thermal Memory
THERMAL MEMORY
YES
NO
NO
YES, NO
Auxiliary
Switch
AUX SWITCH INST
YES
NO
NO
YES, NO
Communications
MODBUS BAUDRATE
4800
19200
19200
4800 to 19200 standard baud increments
MODBUS ADDRESS
0
254 1 0 to 254 steps of 1
Date and Time
SET DATE
Y/M/D
SET TIME
H:M:S
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GEH-702 Users Manual
Function
Title (as implemented)
Data Presented
Notes
Current Metering
CURRENT
PHA - 0A
PHB - 0A
PHC - 0A
Each phase current
CURRENT
N - 0A
Neutral current
Voltage Metering
VOLTAGE
L1-N - 0V
L2-N - 0V
L3-N - 0V
Phase to neutral voltages
Power Metering
REAL PWR
PHA - 0KW
PHB - 0KW
PHC - 0KW
Real power by phase
REAC PWR
PHA - 0KW
PHB - 0KW
PHC - 0KW
Reactive power by phase
APPR PWR
PHA - 0KVA
PHB - 0KVA
PHC - 0KVA
Apparent power by phase
PWR DMD
PRST – 0KW
PEAK – 0KW
PRST-Peak power during last demand interval
PEAK-Peak power since first power
Energy
Metering
ENERGY
TOTAL–0KWH
Total
energy
usage
Frequency
FREQUENCY
60HZ
Frequency
measurement
Power Factor
PWR FACTOR
PHA - 0%
PHB - 0%
PHC - 0%
Power factor by phase
Function
Title (as implemented)
Data Presented
Notes
Current Metering
CURRENT
PHA - 0A
PHB - 0A
PHC - 0A
Each phase current
CURRENT
N - 0A
Neutral current
Voltage Metering
VOLTAGE
L1-L2 - 0V
L2-L3 - 0V
L1-L3 - 0V
Line to line voltages
Power Metering
REAL PWR
TOTAL– 0KW
Total real power
REAC PWR
TOTAL– 0KW
Total reactive power
APPR PWR
TOTAL– 0KVA
Total apparent power
PWR DMD
PRST – 0KW
PEAK – 0KW
PRST-Peak power during last demand interval
PEAK-Peak power since first power
Energy
Metering
ENERGY
TOTAL–
0KWH
Total
energy
usage
Frequency
FREQUENCY
60HZ
Frequency measurement
Power Factor
PWR FACTOR
TOTAL–00%
Total power factor
Table 21. Wye Configuration Metering
Table 22. Delta Configuration Metering
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GEH-702 Users Manual
Function
Title (as implemented)
Data Presented
Notes
Setting status
SETTING STATUS
PU DLY
LT 1.0 4
ST 1.5 2
I 2.0 -GF 0.4 4
Shows pickup and
delay
settings for
current protections
Pickup status
PICKUP STATUS
PICKUP
Blank if not in pickup
Error status
ERROR STATUS
E08
E08 – Rating plug error
E03 – Internal Error
E04 – Internal Error
Breaker status
BREAKER STATUS
CLOSED/OPEN
Only available if Aux switch is configured
Software version
VERSION
SOFTWARE
VERSION
BUILD DATE
Communication settings
COMM SETTING
BAUD RATE PARITY
Function
Title (as implemented)
Data Presented
Notes
Event Record Display
EVENT 0
ST
Phase A
3
350
1/3/10 12:05
Event type
Phase
Number of occurrences
Magnitude of event
Date and time
EVENT 1
Same as event 0
Same as event 0
EVENT 2
Same as event 0
Same as event 0
EVENT 3
Same as event 0
Same as event 0
EVENT 4
Same as event 0
Same as event 0
EVENT 5
Same as event 0
Same as event 0
EVENT 6
Same as event 0
Same as event 0
EVENT 7
Same as event 0
Same as event 0
EVENT 8
Same as event 0
Same as event 0
EVENT 9
Same as event 0
Same as event 0
Appendix B. Modbus Register Map.
Table 23. Status Screen Definitions
Table 24. Event Mode Screen Definitions
Page 30
GEH-702 Users Manual
Register
Parameter
Value
0
Long time pickup state
0 - Out 1 - In
1
Short time pickup state
0 - Out 1 - In
2
GF Sum Pickup state
0 - Out 1 - In
3
ZSI IN active
0 - On 1 - Off
4
ZSI-Out active (Output 3)
0 - On 1 - Off
5
Relay 1 Status (Output 1)
0 - On 1 - Off
6
Relay 2 Status (Output 2)
0 - On 1 - Off
8
GF Defeat
0 - On 1 - Off
9
Input 1 Status
0 - On 1 - Off
11
Relt Status
0 - Off 1 - On
21
Voltage Unbalance Status
0 - Normal
1 - Pickup
22
Under Voltage Status
0 - Normal
1 - Pickup
23
Over Voltage Status
0 - Normal
1 - Pickup
24
Current Unbalance Status
0 - Normal
1 - Pickup
25
Power Reversal Status
0 - Normal
1 - Pickup
27
Breaker position
0 - Open
1 - Closed
51
MET Tripped
0 - No
1 - Yes
54
WFC Data Available
0 - No
1 - Yes
56
Voltage Unbalance Alarm Status
0 - Normal
1 - Alarm
57
Under Voltage Alarm Status
0 - Normal
1 - Alarm
58
Over Voltage Alarm Status
0 - Normal
1 - Alarm
59
Current Unbalance Alarm Status
0 - Normal
1 - Alarm
60
Power Reversal Alarm Status
0 - Normal
1 - Alarm
61
GF Sum Alarm Status
0 - Normal
1 - Alarm
63
Load Shedding Status
0 - Normal
1 - Alarm
65
Diagnostic Mode status
0 - Off 1 - On
66
Defeatable GF
0 - Off 1 - On
Table 25. Discrete Input, Function Code 2
29
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GEH-702 Users Manual
Register Address
Variable
Value
Read/Write
2
GF Protection Enable
0 - No
1 - Yes
Read
6
Protective Relay Protections
0 - No
1 - Yes
Read
7
Full Metering Enable
0 - No
1 - Yes
Read
10
Long Time Protection Enable
0 - No
1 - Yes
Read
11
Short Time protection Enable
0 - No
1 - Yes
Read
22
Current Sensor Rating
0 - Invalid
1 - 150A
4 - 400A
5 - 600A
6 - 800A
7 - 1000A
8 - 1200A
Read
23
Neutral Monitoring Enable
(Neutral Pole Protection / 4th Wire)
0 - No
1 - Yes
Read
24
Ground Fault Alarm Enable
0 - No
1 - Yes
Read
35
ZSI
0 - Disable
1 - GF-ST
2- GF-ST-Inst
Read
81
Instantaneous
0 - Disable
1- Switchable
2 - Non-switchable
Read
83
Waveform Capture Enable
0 - No
1 - Yes
Read
107
Reduced
Energy
Let-Through (RELT)
0 - Disable
1 - Enable
Read
Table 26. Communication Parameters Modbus Function 3 (Read Only)
Page 32
GEH-702 Users Manual
Register Address
Variable
Value
Factory Default
Read/Write
206
Neutral Pole Derating
0 - OFF
1 - 50%
2 - 100%
3 - 150%
0
Read/Write
207
ZSI Combination
0
1 - GF
2 - GF&ST
3 - ST
4 - ST & Inst
5 - GF & ST & Inst
0
Read/Write
208
PT
Primary
Voltage
100 - 690
120
Read/Write
209 PT Connection
0 - Ph-N
1 - Ph-Ph
1
Read/Write
211
Modbus Slave Address
1 - 247
1
Read/Write
213
Communication Setting
0 - 300-8N2
1 - 600-8N2
2 - 1200-8N2
3 - 2400-8N2
4 - 4800-8N2
5 - 9600-8N2
6 - 19200-8N2
7 - 300-8O1
8 - 600-8O1
9 - 1200-8O1
10 - 2400-8O1
11 - 4800-8O1
12 - 9600-8O1
13 - 19200-8O1
14 - 300-8E1
15 - 600-8E1
16 - 1200-8E1
17 - 2400-8E1
18 - 4800-8E1
19 - 9600-8E1
20 - 19200-8E1
21 - 300-8N1
22 - 600-8N1
23 - 1200-8N1
24 - 2400-8N1
25 - 4800-8N1
26 - 9600-8N1
27 - 19200-8N1
27
Read/Write
215
Long Time Trip Pickup
1 - 0.5
2 - 0.55
3 - 0.6
4 - 0.65
5 - 0.7
6 - 0.75
7 - 0.8
8 - 0.85
9 - 0.9
10 - 0.95
11 - 1.0
11
Read/Write
Table 27. Communication Parameters: Modbus Function 3 (Read/Write Parameters)
31
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GEH-702 Users Manual
Register Address
Variable
Value
Factory Default
Read/Write
216
Long Time Trip Delay
0 - Off
1 - MVT1
2 - MVT2
3 - MVT3
4 - MVT4
5 - C- Min
6~14 - C2..C10
15 - C-Max
16 - F-Min
17~22 - F2..F7
23 - F-Max
10
Read/Write
217 Thermal Memory Available
0 - OFF
1 - 12 min. cooling
0
Read/Write
219 Protective Relay Enable
0 - OFF
1 - ON
0
Read/Write
220 Frequency
0 - 50Hz
1 - 60Hz
1
Read/Write
222
Short Time Trip Pickup
1 - 1.5
2 - 2.0
3 - 2.5
4 - 3.0
5 - 3.5
6 - 4.0
7 - 4.5
8 - 5.0
9 - 5.5
10 - 6.0
11 - 6. 5
12 - 7.0
13 - 7.5
14 - 8.0
15 - 8.5
16 - 9.0
1
Read/Write
223
Short Time Trip Delay
0 - Off
1 - Band1
2 - Band2
3 - Band3
4 - Band4
5 - Band5
6 - Band6
7 - Band7
8 - Band8
9 - Band9
10 - Band10
11 - Band11
12 - Band12
5
Read/Write
224
Short Time Kst
0 - 0
1 - 2
2 - 8
3 - 18
0
Read/Write
Page 34
GEH-702 Users Manual
Register Address
Variable
Value
Factory Default
Read/Write
225
Instantaneous Trip Pickup
0 - Off (For switchable Inst only)
1 - Invalid 19 - 10.5
2 - 2.0 20 - 11.0
3 - 2.5 21 - 11.5
4 - 3.0 22 - 12.0
5 - 3.5 23 - 12.5
6 - 4.0 24 - 13.0
7 - 4.5 25 - 13.5
8 - 5.0 26 - 14.0
9 - 5.5 27 - 15.0
10 - 6.0 28 - 16.0
11 - 6.5 29 - 17.0
12 - 7.0 30 - 18.0
13 - 7.5 31 - 19.0
14 - 8.0 32 - 20.5
15 - 8.5 33 - 22.0
16 - 9.0 34 - 23.5
17 - 9.5 35 - 25.0
18 - 10.0 36 - 25.5
2
Read/Write
226
Reduced Instantaneous Trip
Pickup
1 - 1.5
2 - 2
3 - 2.5
4 - 3
5 - 3.5
6 - 4
7 - 4.5
8 - 5
9 - 5.5
10 - 6
11 - 6.5
12 - 7
13 - 7.5
14 - 8
15 - 8.5
16 - 9
17 - 9.5
18 - 10
1
Read/Write
227 Aux Switch Installed
0 - No
1 - Yes
0
Read/Write
228 Phase Direction
0 - ABC
1 - CBA
0
Read/Write
233
GF Trip Pickup
1 - 0.40
2 - 0.41
3 - 0.42
------
59 - 0.98
60 - 0.99
61 - 1.00
61
Read/Write
33
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GEH-702 Users Manual
Register Address
Variable
Value
Factory Default
Read/Write
234
GF Trip Delay
0 - Off
1 - Band1
2 - Band2
3 - Band3
4 - Band4
5 - Band5
6 - Band6
7 - Band7
8 - Band8
9 - Band9
10 - Band10
11 - Band11
12 - Band12
13 - Band13
14 - Band14
15 - Band 15
5
Read/Write
235
GF K Value
0 -
1 -
2 -
3 -
0
Read/Write
236
GF Alarm Pickup
1 - 0.40
2 - 0.41
3 - 0.42
------
59 - 0.98
60 - 0.99
61 - 1.00
1
Read/Write
237
GF Alarm Delay
0 - Off
1 - Band1
2 - B and2
3 - Band3
4 - Band4
5 - Band5
6 - Band6
7 - Band7
8 - Band8
9 - Band9
10 - Band10
11 - Band11
12 - Band12
13 - Band13
14 - Band14
15 - Band 15
5
Read/Write
238
GF Alarm K Value
0 -
1 -
2 -
3 -
0
Read/Write
243 Current Unbalance Action
0 - Alarm
1 - Trip
2 - Both
0
Read/Write
244 Voltage Unbalance Action
0 - Alarm
1 - Trip
2 - Both
0
Read/Write
Page 36
GEH-702 Users Manual
Register Address
Variable
Value
Factory Default
Read/Write
245 Under Voltage Action
0 - Alarm
1 - Trip
2 - Both
0
Read/Write
246 Over Voltage Action
0 - Alarm
1 - Trip
2 - Both
0
Read/Write
247 Power reversal Action
0 - Alarm
1 - Trip
2 - Both
0
Read/Write
258
Over Voltage Pickup
1 - 110
2 - 111
3 - 112
---- [Increments by 1]
40 - 149
41 - 150
1
Read/Write
259
Over Voltage Delay
0 - Off
1 - 1
2 - 2
3 - 3
4 - 4
5 - 5
6 - 6
7 - 7
8 - 8
9 - 9
10 - 10
11 - 11
12 - 12
13 - 13
14 - 14
15 - 15
0
Read/Write
260
Under Voltage Pickup
1 - 50
2 - 51
---- [Increments by 1]
40 - 89
41 - 90
1
Read/Write
261
Under Voltage Delay
0 - Off 1 - 1 2 - 2 3 - 3
4 - 4 5 - 5 6 - 6 7 - 7
8 - 8 9 - 9 10 - 10 11- 11
12 - 12 13 - 13 14 - 14 15 -15
0
Read/Write
262
Under Voltage Zero-Volt Trip
Enable
0 - Disable
1 - Enable
0
Read/Write
35
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36
GEH-702 Users Manual
Register Address
Variable
Value
Factory Default
Read/Write
263
Voltage Unbalance Pickup
1 - 10
2 - 11
3 - 12
4 - 13
5 - 14
6 - 15
7 - 16
8 - 17
9 - 18
10 - 19
11 - 20
---- [Increments by 1]
40 - 49
41 - 50
1
Read/Write
264
Voltage Unbalance Delay
0 - Off
1 - 1
2 - 2
3 - 3
4 - 4
5 - 5
6 - 6
7 - 7
8 - 8
9 - 9
10 - 10
11 - 11
12 - 12
13 - 13
14 - 14
15 - 15
1
Read/Write
265
Current Unbalance Pickup
1 - 10
2 - 11
3 - 12
4 - 13
5 - 14
6 - 15
7 - 16
8 - 17
9 - 18
10 - 19
11 - 20
---- [Increments by 1]
40 - 49
41 - 50
1
Read/Write
266
Current Unbalance Delay
0 - Off 1 - 1 2 - 2 3 - 3
4 - 4 5 - 5 6 - 6 7 - 7
8 - 8 9 - 9 10 - 10 11- 11
12 - 12 13 - 13 14 - 14 15 -15
0
Read/Write
Page 38
GEH-702 Users Manual
Register Address
Variable
Value
Factory Default
Read/Write
267
Power Reversal Pickup
1 - 10
2 - 20
3 - 30
4 - 40
5 - 50
6 - 60
7 - 70
8 - 80
9 - 90
10 - 100
11 - 110
12 - 120
---- [10x read value]
67 - 670
68 - 680
1
Read/Write
268
Power Reversal Delay
0 - Off 1 - 1 2 - 2 3 - 3
4 - 4 5 - 5 6 - 6 7 - 7
8 - 8 9 - 9 10 - 10 11- 11
12 - 12 13 - 13 14 - 14 15 -15
0
Read/Write
269 Power Direction Setting
0 - Line to Load
1 - Load to Line
0
Read/Write
270
Power Demand Interval
1 - 5 minutes
2 - 10
3 - 15
4 - 20
5 - 25
---- [5x read value]
12 - 60
5
Read/Write
271
Relay1 (Output1) Function
0 - None
1 - Group 1
2 - Group 2
3 - Group 3
4 - Group 4
5 - Group 5
6 - Group 6
0
Read/Write
272
Relay2 (Output2) Function
0 - None
1 - Group 1
2 - Group 2
3 - Group 3
4 - Group 4
5 - Group 5
0
Read/Write
275 Input 1
0 - None
1 - Trip
2 - RELT
0
Read/Write
37
Page 39
38
GEH-702 Users Manual
Register Address
Variable
Value
Factory Default
Read/Write
285
Waveform Capture
0 - Disable
1 - Modbus
2 - OverCurrent
3 - Protective Relays
4 - Manual / OverCurrent
5 - Manual / Protective Relays
6 - OverCurrent /
Protective Relays
7 - All
7
Read/Write
286
Language
0 - English
1 - French
2 - Spanish
3 - German
4 - Chinese
0
Read/Write
287
Time Sync Year
16 bit
2010
Read/Write
288
Time Sync Month
8 bit 1 Read/Write
289
Time Sync Date
8 bit 1 Read/Write
291
Time Sync Hour
8 bit 0 Read/Write
292
Time Sync Minute
8 bit 0 Read/Write
293
Time Sync Second
8 bit 0 Read/Write
296
Current Alarm Pickup On
1 - 0.5
2 - 0.55
3 - 0.60
4 - 0.65
5 - 0.70
6 - 0.75
7 - 0.80
8 - 0.85
9 - 0.90
10 - 0.95
11 - 1.00
2
Read/Write
297
Current Alarm Pickup Off
1 - 0.5
2 - 0.55
3 - 0.60
4 - 0.65
5 - 0.70
6 - 0.75
7 - 0.80
8 - 0.85
9 - 0.90
10 - 0.95
11 - 1.00
1
Read/Write
Page 40
GEH-702 Users Manual
Register Address
Variable
Value
Factory Default
Read/Write
302
ZSI Short Time Delay Band
0 - OFF
1 - Band1
2 - Band2
3 - Band3
4 - Band4
5 - Band5
6 - Band6
7 - Band7
8 - Band8
9 - Band9
10 - Band10
11 - Band11
12 - Band12
4
Read/Write
303
ZSI Short Time Kst
0 - 0
1 - 2
2 - 8
3 - 18
0
Read/Write
304
ZSI GF Trip Delay
0 - Off
1 - Band1
2 - Band2
3 - Band3
4 - Band4
5 - Band5
6 - Band6
7 - Band7
8 - Band8
9 - Band9
10 - Band10
11 - Band11
12 - Band12
13 - Band13
14 - Band14
15 - Band 15
0
Read/Write
305
ZSI GF Trip K Value
0 - 0
1 - I2T 2
2 - I2T 3
3 - I4T 18
0
Read/Write
312
Reduced Instantaneous Let
Through (RELT)
0 - OFF
1 - ON
0
Read/Write
39
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40
GEH-702 Users Manual
Register
Parameter Name
Allowable Values
Read/Write
14
Power Peak Demand Total - Lo 16 bits
32 bit
Read
15
Power Peak Demand Total - Hi 16 bits
Read
18
Voltage Phase A
16 bit
Read
19
Voltage Phase B
16 bit
Read
20
Voltage Phase C
16 bit
Read
21
Current Phase A
16 bit
Read
23
Current Phase B
16 bit
Read
25
Current Phase C
16 bit
Read
27
Current Phase N
16 bit
Read
29
Rating Plug Value
0
60
80
100
125
150
200
225
250
300
350
400
450
500
600
700
750
800
900
1000
1100
1200
Read
31
Energy
Total ( 0-15 bits )
16 bit
Read
32
Energy
Total (16-31 bits)
16 bit
Read
35
Energy
Rollover Count
16 bit
Read
36
Power Factor Phase A
16 bit
Read
37
Power Factor Phase B
16 bit
Read
38
Power Factor Phase C
16 bit
Read
39
Power Factor Total
16 bit
Read
40
Power Real Phase A - Lo 16 bits
32 bit
Read
41
Power Real Phase A - Hi 16 bits
Read
42
Power Real Phase B - Lo 16 bits
32 bit
Read
43
Power Real Phase B - Hi 16 bits
Read
44
Power Real Phase C - Lo 16 bits
32 bit
Read
45
Power Real Phase C - Hi 16 bits
Read
46
Power Real Phase Total - Lo 16 bits
32 bit
Read
47
Power Real Phase Total - Hi 16 bits
Read
48
Power Reactive Phase A - Lo 16 bits
32 bit
Read
49
Power Reactive Phase A - Hi 16 bits
Read
50
Power Reactive Phase B - Lo 16 bits
32 bit
Read
Table 28. Communication Parameters: Modbus Function 4
Page 42
GEH-702 Users Manual
Register
Parameter Name
Allowable Values
Read/Write
51
Power Reactive Phase B - Hi 16 bits
Read
52
Power Reactive Phase C - Lo 16 bits
32 bit
Read
53
Power Reactive Phase C - Hi 16 bits
Read
54
Power Reactive Phase Total - Lo 16 bits
32 bit
Read
55
Power Reactive Phase Total - Hi 16 bits
Read
56
Power Apparent Phase A - Lo 16 bits
32 bit
Read
57
Power Apparent Phase A - Hi 16 bits
Read
58
Power Apparent Phase B - Lo 16 bits
32 bit
Read
59
Power Apparent Phase B - Hi 16 bits
Read
60
Power Apparent Phase C - Lo 16 bits
32 bit
Read
61
Power Apparent Phase C - Hi 16 bits
Read
62
Power Apparent Phase Total - Lo 16 bits
32 bit
Read
63
Power Apparent Phase Total - Hi 16 bits
Read
64
Power Demand Total - Lo 16 bits
32 bit
Read
65
Power Demand Total - Hi 16 bits
Read
66
Frequency Measured
16 bit
Read
67
Event 1 (See Note 1)
8 bit
Read
68
Year
8 bit
Read
69
Month
8 bit
Read
70
Date
8 bit
Read
71
Hour
8 bit
Read
72
Minute
8 bit
Read
73
Second
8 bit
Read
74
Phase
8 bit
Read
75
Event Specific - Low 16 bits
16 bit
Read
76
Event Specific - Hi 16 bits
16 bit
Read
77
Event 2 (See Note 1)
8 bit
Read
78
Year
8 bit
Read
79
Month
8 bit
Read
80
Date
8 bit
Read
81
Hour
8 bit
Read
82
Minute
8 bit
Read
83
Second
8 bit
Read
84
Phase
8 bit
Read
85
Event Specific - Low 16 bits
16 bit
Read
86
Event Specific - Hi 16 bits
16 bit
Read
87
Event 3 (See Note 1)
8 bit
Read
88
Year
8 bit
Read
89
Month
8 bit
Read
90
Date
8 bit
Read
91
Hour
8 bit
Read
92
Minute
8 bit
Read
93
Second
8 bit
Read
94
Phase
8 bit
Read
95
Event Specific - Low 16 bits
16 bit
Read
41
Page 43
42
GEH-702 Users Manual
Register
Parameter Name
Allowable Values
Read/Write
96
Event Specific - Hi 16 bits
16 bit
Read
97
Event 4 (See Note 1)
8 bit
Read
98
Year
8 bit
Read
99
Month
8 bit
Read
100
Date
8 bit
Read
101
Hour
8 bit
Read
102
Minute
8 bit
Read
103
Second
8 bit
Read
104
Phase
8 bit
Read
105
Event Specific - Low 16 bits
16 bit
Read
106
Event Specific - Hi 16 bits
16 bit
Read
107
Event 5 (See Note 1)
8 bit
Read
108
Year
8 bit
Read
109
Month
8 bit
Read
110
Date
8 bit
Read
111
Hour
8 bit
Read
112
Minute
8 bit
Read
113
Second
8 bit
Read
114
Phase
8 bit
Read
115
Event Specific - Low 16 bits
16 bit
Read
116
Event Specific - Hi 16 bits
16 bit
Read
117
Event 6 (See Note 1)
8 bit
Read
118
Year
8 bit
Read
119
Month
8 bit
Read
120
Date
8 bit
Read
121
Hour
8 bit
Read
122
Minute
8 bit
Read
123
Second
8 bit
Read
124
Phase
8 bit
Read
125
Event Specific - Low 16 bits
16 bit
Read
126
Event Specific - Hi 16 bits
16 bit
Read
127
Event 7 (See Note 1)
8 bit
Read
128
Year
8 bit
Read
129
Month
8 bit
Read
130
Date
8 bit
Read
131
Hour
8 bit
Read
132
Minute
8 bit
Read
133
Second
8 bit
Read
134
Phase
8 bit
Read
135
Event Specific - Low 16 bits
16 bit
Read
136
Event Specific - Hi 16 bits
16 bit
Read
137
Event 8 (See Note 1)
8 bit
Read
138
Year
8 bit
Read
139
Month
8 bit
Read
140
Date
8 bit
Read
Page 44
GEH-702 Users Manual
Register
Parameter Name
Allowable Values
Read/Write
141
Hour
8 bit
Read
142
Minute
8 bit
Read
143
Second
8 bit
Read
144
Phase
8 bit
Read
145
Event Specific - Low 16 bits
16 bit
Read
146
Event Specific - Hi 16 bits
16 bit
Read
147
Event 9 (See Note 1)
8 bit
Read
148
Year
8 bit
Read
149
Month
8 bit
Read
150
Date
8 bit
Read
151
Hour
8 bit
Read
152
Minute
8 bit
Read
153
Second
8 bit
Read
154
Phase
8 bit
Read
155
Event Specific - Low 16 bits
16 bit
Read
156
Event Specific - Hi 16 bits
16 bit
Read
157
Event 10 (See Note 1)
8 bit
Read
158
Year
8 bit
Read
159
Month
8 bit
Read
160
Date
8 bit
Read
161
Hour
8 bit
Read
162
Minute
8 bit
Read
163
Second
8 bit
Read
164
Phase
8 bit
Read
165
Event Specific - Low 16 bits
16 bit
Read
166
Event Specific - Hi 16 bits
16 bit
Read
167
Long Time Trip Count
16 bit
Read
168
Short Time Trip Count
16 bit
Read
169
Instantaneous Trip Count
16 bit
Read
170
Ground Fault Sum Trip Count
16 bit
Read
172
Power Reversal Trip Count
16 bit
Read
173
Voltage Unbalance Trip Count
16 bit
Read
174
Under Voltage Trip Count
16 bit
Read
175
Current unbalance Trip Count
16 bit
Read
176
Overvoltage trip Count
16 bit
Read
181
Total Trip Count
16 bit
Read
251-258
Software Version
(8-byte
ascii string)
8
bytes
(xx.xx.xx)
Read
259
Rating Plug bit pattern
8 bit
Read
260
Over Temperature Trip Count
16 bit
Read
261
CRC Fail Trip Count
16 bit
Read
262
Rating Plug Trip Count
16 bit
Read
263
Communication Trip Count
16 bit
Read
Note 1: The Phase and Magnitude fields for following events return 0:
1) Over Temperature Trip
2) CRC Fail Trip
3) Communication Trip
4) Invalid Rating Plug Trip
43
Page 45
44
GEH-702 Users Manual
Register
Parameter
Value
Read/Write
101
Save Data
Write
103
Save Real Time Clock Registers
Write
104
Read Real Time Clock Registers
Write
106 Defeat Ground Fault
0 – OFF
1 – ON
Write
108
Trip Breaker
1 – Trip
Write
112 Relay 1 state
1 – ON
0 – OFF
Read/Write
113 Relay 2 state
1 – ON
0 – OFF
Read/Write
114 ZSI-Out
1 – ON
0 – OFF
Read/Write
115
Clear Power Demand
1 – Clear
Write
116
Clear All Events
1 – Clear
Write
117
Clear EEPROM
1 – Clear
Write
118
Clear
Energy
Total
1 – Clear
Write
119
Clear All Trip Counters
1 – Clear
Write
120
Clear LT Trip Counter
1 – Clear
Write
121
Clear All Pickup Counters
1 – Clear
Write
122
Clear Short Time Trip Count
1 – Clear
Write
123
Clear Instantaneous Trip Count
1 – Clear
Write
124
Clear Ground Sum and CT Fault Trip Counts
1 – Clear
Write
125
Clear Rating Plug Too Small Count
1 – Clear
Write
126
Clear Power Reversal Trip Count
1 – Clear
Write
127
Clear Voltage Unbalance Trip Count
1 – Clear
Write
128
Clear Under Voltage Trip Count
1 – Clear
Write
129
Clear Current unbalance Trip Count
1 – Clear
Write
130
Clear Overvoltage trip Count
1 – Clear
Write
131
Clear Over Temperature Trip Count
1 – Clear
Write
132
Clear ROM CRC fault count
1 – Clear
Write
135
Clear Metering Data
1 – Clear
Write
143
Trigger Waveform Capture
1 – Clear
Write
144
Clear Waveform Capture Data Buffer
1 – Clear
Write
145
Clear Preventive Maintenance data
1 – Clear
Write
148
Clear STO trip count
1 – Clear
Write
149
Clear Comm. trip count
1 – Clear
Write
Table 29. Communication Parameters: Modbus Function 5
Page 46
GEH-702 Users Manual
Pin
Function
Voltage
Current
1
ZSI-I+
24VDC+
2
24VDC+
24VDC+
50mA
3
ZSI-I-
24VDC-
4
24VDC-
24VDC-
50mA
5
ZSI-O+
Contact
6
Modbus+
5V (Max)
7
ZSI-O-
Contact
8
Modbus-
5V (Max)
9
GFA/PC1-O+
60V (AC/DC)
1A max
10
Aux Switch
24VDC+ referenced to Pin 4
0.1mA
11
GFA/PC1-O-
60V (AC/DC)
1A max
12
CTN - 200mA @ 1X
13
RELT/PC2-O+
60V (AC/DC)
1A max
14
CTCom
-
200mA @ 1X
15
RELT/PC2-O-
60V (AC/DC)
1A max
16
PHA Voltage
5V max referenced to Pin 4.
17
RELT-I+
24Vac or 24VDC+
5mA
18
PHB Voltage
5V max referenced to Pin 4.
19
RELT-I-
24Vac or 24VDC+
5mA
20
PHC Voltage
5V max referenced to Pin 4.
Appendix C. Breaker Harness Pin-outs
Figure 17. Signal Definitions 20-Pin Harness (Breaker Pigtail)
45
Page 47
46
GEH-702 Users Manual
Pin
Function
Voltage
Current
1
24VDC+
24VDC+
50mA
2
24VDC-
24VDC-
50mA
3
Modbus+
5V (Max)
4
Aux Switch (Red)
24VDC+ referenced to Pin 4
0.1mA
5
Aux Switch (White)
24VDC- referenced to Pin 2
6
PHA Voltage
5V max referenced to Pin 4.
7
PHB Voltage
5V max referenced to Pin 4.
8
PHC Voltage
5V max referenced to Pin 4.
9
Modbus-
5V (Max)
10 (B)
CTN - 200mA @ 1X
11 (W)
CTCom
-
200mA @ 1X
12
Distribution Cable Shield
N/C
-
Pin
Function
Voltage
Current
1 Reserved
2 RS232-RX – (Data into the trip unit)
+/- 21VDC
3 RS232-TX – (Data out of the trip unit)
+/- 9VDC
4 N/C
5 N/C
6 24VDC+ From Test Kit
24VDC+
50mA
7 Reserved
8 24VDC-
24VDC-
50mA
9 24VDC-
24VDC-
50mA
10
Reserved
11
Reserved
12
N/C
13
N/C
14
N/C
15
N/C
Figure 18. Signal Definitions 12-Pin Harness (Breaker Pigtail)
Figure 19. DB15 Connector
Page 48
GEH-702 Users Manual
Value
Breaker Full-Scale
A
ccurac
y
1
System Full-Scale
A
ccurac
y
2
Current (A, kA)
± 4%
± 4%
3
Voltage (V)
N/A
± 2%
Real Power (kW, MW)
N/A
± 6%
3
Reactive Power (kVAR)
N/A
± 6%
3
Apparent Power (kVA)
N/A
± 4%
3
Peak Power Demand (kW)
N/A
± 4%
3
Energy (kWh, MWh)
N/A
± 7%
3
Frequency (Hz)
N/A
± 1 Hz
3
Power Factor (%)
N/A
±7% max
Appendix D. Metering
Table 30. Metering Accuracy
1. Includes Trip
2. Includes breaker plus Voltage Module (potential transformers, control power, voltage conditioner).
3.
Accuracy
For loads below 100% of the breaker currents sensors, add ± 3% to these values.
Unit
, breaker current sensors, and rating plug.
performance is based on a loading range of 100% of the breaker current sensors.
47
Page 49
48
GEH-702 Users Manual
The trip unit
display
is blank.
External +24 VDC is
absent
.
The load current fluctuates near 20% of
the breaker sensor rating.
At least 20% of the current sensor rating, (xCT)
must be flowing through the breaker to activate
the display.
Check that the control power
supply
is
present and operational.
The trip unit
display
E03.
Memory failure.
Return the unit to GE.
The trip unit
display
E04.
Memory failure.
Return the unit to GE.
The trip unit
display
E06
Internal failure.
Return the unit to GE.
The trip unit
display
E08.
Invalid rating plug
Check the rating plug. The rating plug
value shall not exceed and be below 40% of the
breaker sensor.
Ensure the rating plug is
properly
seated.
Unit does not communicate with
the Master.
The communication wires are shorted
or
improperly
connected.
Incorrect baud rate.
Incorrect address.
Locate and repair the short or the
incorrect connection.
Check that the baud rate assigned to the trip
unit
,
agrees with the baud rate at the
host
.
Check that the address assigned to the trip
unit
,
agrees with the address at the host
Current readings are
incorrect
.
Incorrect rating plug value.
Check the rating plug label.
Voltage readings are
incorrect
.
The potential transformer (PT) primary
voltage was defined incorrectly.
The PT connection was defined incorrectly.
Read the PT
primary
rating from the PT name
plate and set trip unit PT to this value.
Set the trip unit phase to phase PH-PH or phase
to neutral PH-N according to the system.
Instantaneous trip
Rating plug is less than 37% of sensor rating.
Internal failure
Replace the rating plug with appropriate value.
(unit can be tested with no rating plug installed,
it will default to 37% of sensor).
Return unit to GE.
The power readings are incorrect
The breaker left-right orientation is incorrect
Set the trip unit left-right orientation according to
the equipment in which it is installed
Overvoltage relay caused a trip.
The voltage conditioner plate does not have a
proper 24 volt DC source
Check wiring and apply a 24 volt source to the
voltage conditioner plate
The date in the event log is 0.
When breaker closes into a fault without
auxiliary
24 volts, the microprocessor cannot
write the date information.
Use an external 24-volt source for the trip
unit
.
Appendix E. Troubleshooting
Page 50
GEH-702 Users Manual
Appendix F. Replacing MicroVersaTrip® with microEntelliGuard
There are occasions when a field update or repair will
require replacement of a Spectra RMS Molded Case
circuit breaker with a MicroVersaTrip® Trip Unit with a
Spectra RMS Molded Case circuit breaker with a
microEntelliGuard
to
consider
when performing this replacement . The
TM
Trip Unit. There are two cases
replacement procedures are described in this appendix.
For either case the first step is to
Molded Case circuit breaker with microEntelliGuard
Trip Unit to use in the replacement . The figure provides
a conversion map from a MicroVersaTrip® (MVT) to a
microEntelliGuard
TM
(MET). This figure only helps identify
an equivalent breaker. Should additional features be
desired during the replacement contact a GE sales
representative or distributor for assistance.
identify
the appropriate
TM
The new Spectra RMS Molded Case Circuit breaker with
microEntelliGuard
old circuit breaker. A standard replacement procedure
can be used following all safety procedures.
Warning - High voltage and high currents are present
when working with circuit breaker replacement . Be
sure all power is removed before replacing the existing
circuit breaker. Before reapplying the power, be sure to
check the integrity of all connections.
The second case to consider is replacement of a
MicroVersaTrip® breaker that is connected to a
communications port. When replacing a MicroVersaTrip
breaker that uses the communication port, minor wiring
updates are required. The block diagram in Figure 21
shows the
TM
typical
TM
will be a direct replacement for the
MicroVersaTrip® connection.
®
Figure 20. MicroVersaTrip
®
vs. microEntelliGuard™ Conversion
The first case to consider is a MicroVersaTrip® unit that
does not use POWERLEADER
TM
communications. If the
trip unit does not use the Commnet communications
port for POWERLEADER
TM
or other communications, the
replacement method is strictly a physical replacement.
Figure 21. MicroVersaTrip
Figure 22. microEntelliGuard
®
Commnet Wiring
TM
Modbus Wiring
49
Page 51
50
GEH-702 Users Manual
The microEntelliGuard
TM
Trip Unit communicates
directly with the Modbus. To update the wiring for use
with microEntelliGuard
TM
Trip Unit, Belden 9841 cable
should be used. The COMM+ (Com TX) signal from the
distribution junction box should be connected to the
Modbus+ connection of the Modbus. The COMM- (Com
RX) signal from the distribution junction box should
be connected to the Modbus-. The shield from the
distribution junction box should be connected to the
Modbus shield. Figure 22 shows the modified wiring.
The Modbus standard requires that communication
wiring be connected using a daisy chain method with
termination resistors applied to the last slave unit in
Appendix G. Additional Information
Refer to these other user’s manuals for more details·:
GEH-700 Spectra G Breaker w/
microEntelliGuard Trip Unit
GEH-701 Spectra K Breaker w/
microEntelliGuard Trip Unit
DEH-41318 Universal Rating Plug
GEH-6250 Voltage Module
GEH-6251 Power Supply Plate
GEH-6252 Voltage Conditioner Plate
GEH-6253 Power Supply Assembly
GEH-6254 Voltage Conditioner Assembly
GEH-703 MET Batter Pack Adapter
GEH-704 MET Advanced Distribution Cable
Junction Box
the chain. If there is only one breaker or device using
the Modbus concentrator, the concentrator can be
removed from the system.
Once the circuit breaker is replaced in the system, some
reprogramming may be necessary. Users Manual
GEH-6508 contains a register map for the Spectra
MicroVersaTrip®. This document will provide the register
numbers that were available for various functions using
the MicroVersaTrip®. The equivalent registers for the
microEntelliGuard
document
.
DEH-006 Distribution Cable Junction Box
GEH-705 MET Distribution Cable Extension (20-Pin)
GEH-6256 Distribution Cable Extension (12-Pin)
GEH-6255 Distribution Cable Harness (12-Pin)
GEH-706 MET Distribution Cable Terminal Blocks
GEH-6257 Distribution Cable Terminal Block (11 point)
GEH-707 MET Sealable Cover kits
DEH-4568 GTU digital test kit (GTUTK20)
GEH-5551 Shunt Trip and UVR instructions
GEH-5593 Aux switch and bell alarm
GEK-64467 TIM-1 Zone Selective Interlock Module
TM
are provided in Appendix B of this
(11 point & 22 point)
Page 52
GEH-702 Users Manual
Spectra and MicroVersaTrip are registered
microEntelliGuard are trademarks of the General Electric Company.
These instructions do not cover all details or variations in equipment nor do they
provide for
operation, or maintenance. Should further information be desired or should particular
problems arise that are not covered
matter should be referred to the GE Company.
every
possible
contingency
trademarks
that may be met in connection with installation,
sufficiently
and EntelliGuard and
for the purchaser’s purposes, the
GE
Ener
gy
41 Woodford Avenue, Plainville, CT 06062
www.geelectrical.com
© 2012 General Electric Company
imagination at work
GEH-702 Rev. 5 (03/12)
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