GE Industrial Solutions EntelliGuard E Circuit Breaker User Manual

GE Energy

Industrial Solutions

EntelliGuard

Circuit Breaker

Installation, Operation, and Maintenance Manual

Retain for Future Use.

HAZARD CATEGORIES

The following important highlighted information appears throughout this document to warn of potential hazards or to call attention to information that clarifies a procedure.

Carefully read all instructions and become familiar with the devices before trying to install, operate, service or maintain this equipment.

DANGER

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Failure to comply with these instructions may result in product damage.

NOTICE

Indicates important information that must be remembered and aids in job performance

TRADEMARKS

EntelliGuard™ E EntelliGuard Messenger™ EntelliGuard™ TU Entellisys™

WARRANTY

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.

Contact your local sales office if further information is required concerning any aspect of EntelliGuard E circuit breaker operation or maintenance.

Table of Contents

SECTION 1 – GENERAL INFORMATION ......................................................................................................................................................................................6

STORAGE ...........................................................................................................................................................................................................................................6

Introduction .....................................................................................................................................................................................................................................6

Quality Assurance ....................................................................................................................................................................................................................6

Product Serial Number ..........................................................................................................................................................................................................6

Measurement Units .................................................................................................................................................................................................................6

PRODUCT DESCRIPTION .............................................................................................................................................................................................................6

HAND TOOLS NEEDED FOR INSTALLATION .......................................................................................................................................................................6

Table 1.1. Required Hand Tools .........................................................................................................................................................................................6

...............................................................................................................................................................................................................................................................7

Figure 1.1. EntelliGuard E Power Circuit Breaker Features and Characteristics .............................................................................................7

Figure 1.2. EntelliGuard E Power Circuit Breaker Label ...............................................................................................................................................7

SECTION 2 – PRODUCT SPECIFICATIONS .................................................................................................................................................................................8

Table 2.1. Environmental Conditions ...................................................................................................................................................................................8

Table 2.2. EntelliGuard E Short Circuit and Interrupting Ratings: ANSI/UL1066 ..............................................................................................8

Table 2.3. Agency Certification ...............................................................................................................................................................................................8

Table 2.4. Product Dimensions and Weights ...................................................................................................................................................................8

SECTION 3 – LIFTING, MOUNTING AND INSTALLATION.....................................................................................................................................................9

CIRCUIT BREAKER UNPACKING (Fig. 3.1) .............................................................................................................................................................................9

BASIC CIRCUIT BREAKER CONSTRUCTION .........................................................................................................................................................................9

Circuit Breaker Removal from the Cassette ............................................................................................................................................................. 11

TRIP UNIT ........................................................................................................................................................................................................................................ 12

General Information ............................................................................................................................................................................................................ 12

Trip Unit Installation ............................................................................................................................................................................................................. 12

WIRING ............................................................................................................................................................................................................................................ 13

Table 3.1. Wiring Schematic for Block-A .................................................................................................................................................................... 13

Table 3.2. Wiring Schematic Nomenclature Definitions ..................................................................................................................................... 13

SECONDARY DISCONNECT BLOCKS ................................................................................................................................................................................... 15

SECTION 4 – OPERATION .................................................................................................................................................................................................... 16

STORED ENERGY MECHANISM KEY FEATURES .............................................................................................................................................................. 16

Circuit Breaker Charging ................................................................................................................................................................................................... 16 

Two Step Mechanism Design .......................................................................................................................................................................................... 16

Table 4.1. Stored Energy Mechanism Sequences of Operation ...................................................................................................................... 16

CLOSING SPRING DISCHARGE PROCEDURE ................................................................................................................................................................... 16 

Closing procedure ...................................................................................................................................................................................................................... 17

EntelliGuard® E Circuit Breaker DEH-41526

CONDITIONS WHEN Closing cannot occur .................................................................................................................................................................... 17

CIRCUIT BREAKER OPENING Procedure ........................................................................................................................................................................... 17

Table 4.2. Cassette Operating Positions ..................................................................................................................................................................... 17

SECTION 5 – LOCKS AND INTERLOCKS .................................................................................................................................................................................. 18

GENERAL INFORMATION ......................................................................................................................................................................................................... 18

CIRCUIT BREAKER FRONT PANEL LOCKING .................................................................................................................................................................... 18

Padlock or Scissor Lock for Breaker Trip Free Condition .................................................................................................................................... 18

DRAWOUT CASSETTE FRONT PANEL LOCKING ............................................................................................................................................................. 18

Security Locking ..................................................................................................................................................................................................................... 18

Isolation Shutters Locking (If Installed) ....................................................................................................................................................................... 18

Table 5.1. Drawout Circuit Breaker Locking.............................................................................................................................................................. 19

SECTION 6 – ACCESSORIES DESCRIPTION ............................................................................................................................................................................ 20

INDIVIDUAL ACCESSORIES ..................................................................................................................................................................................................... 20

Motorized Spring Charging Unit ..................................................................................................................................................................................... 20 

Circuit Breaker Closing Coil .............................................................................................................................................................................................. 20

Shunt Trip (ST) ......................................................................................................................................................................................................................... 20

Remote Operation Coil Combination ........................................................................................................................................................................... 20

Auxiliary Switches ................................................................................................................................................................................................................. 21

Circuit Breaker - Key Interlock Facility ........................................................................................................................................................................ 21

Carriage Position Switch (TOC) ........................................................................................................................................................................................ 21

Bell Alarm with Lockout ..................................................................................................................................................................................................... 21

Charging Spring Status Indicator .................................................................................................................................................................................. 21

Secondary Disconnects (Factory-installed/Field Installable) ............................................................................................................................ 21

Cassette/Substructure ........................................................................................................................................................................................................ 22

Position Indicators ................................................................................................................................................................................................................ 22

Rejection Device .................................................................................................................................................................................................................... 22

SECTION 7 – ACCESSORIES INSTALLATION .......................................................................................................................................................................... 23

CIRCUIT BREAKER FRONT COVER REMOVAL .................................................................................................................................................................. 23

MOTOR OPERATOR - SPRING CHARGING UNIT INSTALLATION ............................................................................................................................. 23 

NETWORK INTERLOCK, SHUNT TRIP AND CLOSING COIL DEVICE INSTALLATION ........................................................................................ 24

Shunt Trip & Closing Coil Installation (Fig. 7.4) ......................................................................................................................................................... 24 

Closing Coil Removal ........................................................................................................................................................................................................... 24

NETWORK INTERLOCK INSTALLATION .............................................................................................................................................................................. 24

Bell Alarm Switch Installation ............................................................................................................................................................................................... 24

SHUTTER PROP OPEN FEATURE ........................................................................................................................................................................................... 24

CARRIAGE POSITION SWITCH INSTALLATION ................................................................................................................................................................ 24

CLUSTERS (Primary Disconnect Fingers) ......................................................................................................................................................................... 25 

MECHANICAL Bell ALARM contact INSTALLATION ...................................................................................................................................................... 25

REJECTION FEATURE ................................................................................................................................................................................................................. 25 

SECTION 8 – MAINTENANCE, TESTING AND TROUBLESHOOTING ............................................................................................................................. 26

MAINTENANCE ............................................................................................................................................................................................................................. 26

Inspection Schedule ............................................................................................................................................................................................................ 26

Cleaning Procedure ............................................................................................................................................................................................................. 26

Contact Wear Indicator Inspection (GCNTW) ........................................................................................................................................................... 26

Circuit Breaker Main Mechanism Inspection ........................................................................................................................................................... 27 

Cassette Inspection ............................................................................................................................................................................................................. 27

Isolating Contacts Inspection .......................................................................................................................................................................................... 27 

Lubrication ............................................................................................................................................................................................................................... 27

TROUBLESHOOTING .................................................................................................................................................................................................................. 28

EntelliGuard® E Publications ................................................................................................................................................................................................. 28 

EntelliGuard® E Circuit Breaker DEH-41526

SECTION 1 – GENERAL INFORMATION

STORAGE

CAUTION

PRODUCT DAMAGE

 Do not store circuit breaker in corrosive

environments above LC1 (sea salt mist) and G1 as per ANSI/ISA-S71.04-1985.

 Ensure circuit breakers are stored in a clean, dry

location in their original packaging.

Failure to comply with these instructions may result

in product damage.

Introduction

Quality Assurance

All EntelliGuard E circuit breakers have been designed and manufactured to the highest technical standards. Strict procedures ensure first class product quality.

Product Serial Number

Please have the serial number available when communicating about the circuit breaker. Each circuit breaker has a unique serial number located on the bottom right side (viewed from front) of the front fascia, see figure 1.2.

Measurement Units

 All data in this document is specified in conventional

metric/SI units.

 All internal/external accessory and external

cable/bus bar connections are metric.

PRODUCT DESCRIPTION

The EntelliGuard E power circuit breaker is designed to protect low voltage power circuits when used with Entellisys™ Low-Voltage Switchgear only. The EntelliGuard E circuit breaker must be used in concert with the EntelliGuard Messenger and current transformers mounted within the switchgear cubicle. All EntelliGuard E circuit breakers are designed for draw-out mounting. See Section 2 and the Entellisys Low-Voltage Switchgear application guide, DET-838 for complete product specifications.

Figure 1.1 shows a front view of the EntelliGuard E. The indicated features are referenced in this document.

HAND TOOLS NEEDED FOR INSTALLATION

Table 1.1 provides a list of the hand tools required to install, operate and maintain the EntelliGuard E Circuit Breaker.

Table 1.1. Required Hand Tools

Tool Name Function

Cluster pliers (two pairs, each with a different gap, are supplied under Cat. No. GUNI) Screwdriver (8 mm)

Allen wrench (5 mm)

Allen wrench key (4 mm) To remove motor and gearbox mounting screws. Metric feeler gauges To check and adjust arcing contact gaps. Pozidrive terminal screwdriver

Pozidrive screwdriver (#1 and #3)

Full Set of Metric Hex Allen Wrenches and Socket Set

To remove primary disconnect finger clusters for inspection and maintenance.

 To operate racking drive shutter.  To remove arc chutes for inspection and maintenance.  To remove or adjust fixed and moving arcing contacts.  To remove mechanism.

 To remove mechanical and electronic component mounting screws.  To connect wiring to secondary disconnect terminals.  To remove front cover mounting screws.  To remove Rogowski coil and Power current transformer cover plate at the

rear of the circuit breaker moving portion.

 To remove PMU base, auxiliary switch assembly, etc.

FIGURE 1.1. ENTELLIGUARD E POWER CIRCUIT BREAKER FEATURES AND CHARACTERISTICS

Secondary disconnect label

Network Interlock Manual Reset

Secondary Disconnects

Bell alarm lockout reset button

Tamper-proof label Complete, factory-assembled catalog number

FIGURE 1.2. ENTELLIGUARD E POWER CIRCUIT BREAKER LABEL

Product Family

Current Rating

Breaker Frame

Short Circuit Ratings

Certification & Standards

Accessory windows

Padlock provision

Retractable handle for manual spring charging

Spring discharge

Operating buttons: OPEN/CLOSE

Breaker status contacts:

Spring charge indicator

Barcode with Manufacturing Data

Breaker Serial Number

Manufacturing Date

EntelliGuard® E Circuit Breaker DEH-41526

SECTION 2 – PRODUCT SPECIFICATIONS

WARNING

IMPROPER INSTALLATION, OPERATION AND MAINTENANCE

Ensure only qualified personnel install, operate, service and maintain all electrical equipment.

Failure to comply with these instructions could result in death or serious injury.

TABLE 2.1. ENVIRONMENTAL CONDITIONS

Characteristic Parameter

Temperature:

Ambient for Normal Operation

Ambient at 10% of listed endurance operations inside panel

Storage Humidity 20% RH to 95% RH Salt fog per ASTM-B117 Vibration (random and sinusoidal) 1 G max., 50 Hz to 500 Hz in X, Y, Z directions Fungus resistance per ASTM G21 Voltage and current de-rating at altitude above sea level per ANSI C37.20.1, Tables 2 and 3 Noise level <30 dB Endurance:

closing coil, Shunt trip

motor operator

-5 ºC to 70 ºC, 40 ºC max without derating

-20 ºC to -5 ºC

-40 ºC to 70 ºC

20,000 operations 12,500 operations

TABLE 2.2. ENTELLIGUARD E SHORT CIRCUIT AND INTERRUPTING RATINGS: ANSI/UL1066

Interrupting Rating Tier ANSI/UL1066 Devices, LVPCB

Type 240 V 480 V 600 V 1/2S Withstand

S 65,000 65,000 50,000 50,000 X N 65,000 65,000 65,000 65,000 X X H 85,000 85,000 65,000 85,000 X P 100,000 100,000 65,000 65,000 X

E 85,000 85,000 85,000 85,000 X M 100,000 100,000 85,000 85,000 X

Envelope 1 400, 800,

1200

400, 800,

1600,

2000

Envelope 2

3200

400-3200

TABLE 2.3. AGENCY CERTIFICATION

(All industry standards referenced in this table are the latest version at the time the product is sold.)

Standard Number Title

ANSI C37.13,16,17, 20, 50 Low-voltage AC Power Circuit Breakers UL 1066 Low voltage AC and DC Power Circuit Breakers Used in Enclosures CSA 22.2, No 5.1 Molded-Case Circuit Breakers, Molded-Case Switches and Circuit-Breaker Enclosures

TABLE 2.4. PRODUCT DIMENSIONS AND WEIGHTS

Type

Envelope 1 13.07 332 16.34 415 17.24 438 149.9 68

Envelope 2, Up to 2000A 17.01 432 16.34 415 17.24 438 176.4 80

Envelope 2, Up to 3200A 17.01 432 16.34 415 17.24 438 209.4 95

Width Depth Height Weight

in. mm in. mm in. mm lbs. kg

SECTION 3 – LIFTING, MOUNTING AND INSTALLATION

WARNING

IMPROPER INSTALLATION, OPERATION AND MAINTENANCE

Ensure only qualified personnel install, operate, service and maintain all electrical equipment.

Failure to comply with these instructions could result in death or serious injury.

WARNING

FALLING OBJECT

 Ensure lifting equipment has capability for device

being lifted.

 Wear hard hat, gloves and safety shoes.

Failure to comply with these instructions could result in death or serious injury.

CAUTION

PRODUCT DAMAGE

 Ensure circuit breaker and its accessories are

always used within their designated ratings.

 Do not allow the circuit breaker to hit a hard

surface while handling.

 Do not drag or slide the circuit breaker across a

hard or rough surface.

Failure to comply with these instructions may result

in product damage.

NOTICE

A factory-installed rejection feature prevents mismatching circuit breakers and cassettes/substructures, preventing the insertion of a circuit breaker with a lower rating into a higher rated cassette/substructure, or the insertion of a higher rated circuit breaker into a lower rated cassette/substructure.

CIRCUIT BREAKER UNPACKING (FIG. 3.1)

1. Inspect the shipping container for obvious signs of

rough handling and/or external damage incurred during transportation.

2. Record any observed damage for reporting to the

carrier. Ensure all recorded reports and claims include the order number and nameplate information.

3. Remove the banding straps and lift off the top cover.

4. Remove all packaging material.

5. Remove all product documentation and store properly.

6. Unscrew the mounting screws that fasten the circuit

breaker to the bottom of the shipping pallet and remove the circuit breaker.

Figure 3.1. Unpacking the Circuit Breaker

BASIC CIRCUIT BREAKER CONSTRUCTION Figure 3.2. Circuit Breaker Construction

EntelliGuard E circuit breakers consist of rigid front and rear housings made of thermoset composite resins which provide high structural strength and excellent dielectric properties. These housings enclose a contact system consisting of a moving portion and a fixed portion:

 Moving portion: comprised of multiple finger assemblies

connected to a conductor through flexible copper connections. The number of finger assemblies depends on the circuit breaker’s continuous and short circuit ratings. Each finger assembly has an arcing contact and a main contact.

 Fixed portion: consists of a main fixed contact which is

brazed to a conductive pad, and arc runner which is fastened to the conductive pad which guides the arc to the arc chamber.

Each pole has an arc chamber comprised of arc chamber molds which houses the de-ion plates and filtering system. The pole configuration depends upon the breaker frame size.

The operating mechanism is mounted on the front housing. The energy stored in the mechanism is used to close the contact system. The mechanism is coupled to each pole by a common layshaft/drive shaft.

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GE Industrial Solutions EntelliGuard E Circuit Breaker User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual