Manta MTS-3000, MTS-3010, MTS-3060, MTS-3020, MTS-3030 Reference Manual
...
OPERATION AND REFERENCE MANUAL
MODULAR TEST SYSTEM
First Edition
March 2001
MTS-3000 SERIES
Tel: +1(905) 828-6 469 Fax: +1(905) 828-6850
e-mail: support@mantatest. com Internet: http://www.mantatest.com
Manta Test Systems Incorporated
4060B Sladeview Crescent, Unit #1
Mississauga, Ontario, L5L 5Y5, Canada
MTS-3000 Modular Test System
Operati on and R eference Manual
All rights reserved by Manta Test Systems Incorporated. No part of this publication may be reproduced or
distributed in any form or by any means without the permission of Manta Test Systems Incorporated.
The information and specifications contained within from Manta Test Systems are believed to be accurate
and reliable at the time of printing. However, because of the nature of this product, specifications shown in
this manual are subject to change without notice.
The features and capabil ities described herein reflect those available in the following firmware versions:
• MTS-3000: 2.0
• MTS-3010: 1.1
• MTS-3020: 1.1
• MTS-3030: 2.0
• MTS-3040: 2.0
• MTS-3060: 2.0
March 2001.
Document ID#: CU M004 01A
Powertest™ is a trademark of Manta Test Systems Inc.
Tel: +1(905) 828-6469 Fax: +1(905) 828-6850
e-mail: support@mantatest.com Internet: http://www.mantatest.com
Toll-free technical support (U.S.A & Canada): 1-800-233-8031
Manta Test Sys tems Incorporated
4060B Sladeview Crescent, Unit #1
Mississauga, Ontario, L5L 5Y5, Canada
TABLE OF CONTENTS
TABLE OF CONTENTS
Section 1
Introduction
1.1 DISTINCTIVE CHARACTERISTICS .........................................................1-1
1.2 GENERAL DESCRIPTION..........................................................................1-1
1.3 APPLICATIONS...........................................................................................1-2
1.3.1 Standard Applications..............................................................................1-2
1.4 TERMINOLOGY ...... ...... .... ...... .... ...... .... ........... .... ...... .... ...... .... ...... .... ...... ..1-2
1.4.1 AC Current Module (ACI)........................................................... .......... ..1-2
1.4.2 AC Voltage Module (ACV).....................................................................1-2
1.4.3 Control Module (CM).............................................................................. 1-2
1.4.4 Device Under Test (DUT) .......................................................................1-2
1.4.5 Dynamic Fault Mode ...............................................................................1-2
1.4.6 Dynamic Relay Testing ...........................................................................1-3
1.4.7 MTS.........................................................................................................1-3
1.4.8 On Panel Testing......................................................................................1-3
1.4.9 Programming Mode.................................................................................1-3
1.4.10 Static Relay Testing.................................................................................1-3
1.4.11 Test Mode ................................................................................................1-3
1.4.12 V/I Module (VI).......................................................................................1-3
1.4.13 WFG Module...........................................................................................1-3
1.5 SAFETY CONSIDERATIONS.....................................................................1-3
1.6 TECHNICAL CONSIDERATIONS.............................................................1-4
1.7 TECHNICAL SUPPORT ..............................................................................1-4
Section 2
Specifications
2.1 INPUTS .........................................................................................................2-1
2.2 OUTPUTS .....................................................................................................2-1
2.2.1 MTS-3010 Digital I/O Module (Optional)..............................................2-1
2.2.2 AC Currents: MTS-3060 AC Current Module........................................2-1
2.2.3 AC Voltage and Current: MTS-3030 AC Voltage/Current Module........2-2
2.2.4 Output frequency .....................................................................................2-2
2.2.5 Harmonics................................................................................................2-1
2.2.6 Phase control............................................................................................2-2
2.2.7 DC Voltage: MTS-3020 DC Voltage Module.........................................2-2
2.2.8 DC Current: Current Source option.........................................................2-2
2.2.9 MTS-3010 Digital I/O Module (Optional)..............................................2-2
2.3 METERING...................................................................................................2-3
2.3.1 Time measurement...................................................................................2-3
2.3.2 Frequency measurement ..........................................................................2-3
2.4 STATIC/DYNAMIC TESTING CAPABILITIES........................ .... ...... .... ..2-3
2.5 OPTIONS.......................................................................................................2-3
2.5.1 System Options ........................................................................................2-3
2.5.2 AC Voltage Module Options ...................................................................2-3
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2.5.3 AC Current Module Options....................................................................2-4
2.5.4 AC Voltage/Current Module Options......................................................2-4
2.6 PHYSICAL CHARACTERISTICS ..............................................................2-4
2.6.1 Minimum Configuration..........................................................................2-4
2.6.2 Control Module........................................................................................2-4
2.6.3 AC Voltage Module.................................................................................2-4
2.6.4 AC Current Module .................................................................................2-4
2.6.5 AC Voltage/Current Module ...................................................................2-4
2.6.6 Three Phase System: Control Module, AC Voltage and AC Current
Modules ...................................................................................................2-4
Section 3
Operation Summary
3.1 FRONT PANEL LAYOUT...........................................................................3-1
3.1.1 MTS-3000 Control Module, CM.............................................................3-1
3.1.2 MTS-3010 Digital I/O Module................................................................3-4
3.1.3 MTS-3010 DC Voltage Source................................................................3-5
3.1.4 MTS-3040 AC Voltage Module ..............................................................3-5
3.2 REAR PANEL LAYOUT .. ...... .... ...... .... ........... .... ...... .... ...... .... ...... .... ...... ....3-7
3.2.1 MTS-3000 Control Module Rear Panel...................................................3-7
3.3 BASIC APPLICATIONS ..............................................................................3-9
3.3.1 Getting Started.........................................................................................3-9
3.3.2 Basic AC Voltage, Current and Phase Angle Output ..............................3-12
3.3.3 Frequency Output ....................................................................................3-14
3.3.3.1 BASIC FREQUENCY OUTPUT. ...................................................3-14
3.3.3.2 ADVANCED FREQUENCY OUTPUT. ....................... ...... .... ...... ..3-15
3.3.4 DC Voltage ..............................................................................................3-15
3.3.4.1 BASIC DC VOLTAGE OUTPUT. .................................................3-15
3.3.4.2 ADVANCED DC VOLTAGE OUTPUT. . .... .... ...... .... ...... .... ...... .... 3-16
3.3.5 DC Current Output...................................................................................3-16
3.3.6 High AC Voltage Output.........................................................................3-17
3.3.7 High AC Current Output..........................................................................3-18
3.3.8 Overcurrent Relay Test............................................................................3-18
3.3.8.1 SETUP. ............................................................................................3-19
3.3.8.2 MINIMUM PICKUP TEST. ............................................................3-19
3.3.8.3 INVERSE-TIME CHARACTERISTIC TEST. ...............................3-19
3.3.8.4 INSTANTANEOUS ELEMENT TEST. .........................................3-20
3.3.8.5 TARG ET/SEAL-I N TEST. .. ........ ......... ................ ........ ................ ..3-21
3.3.9 Differential Relay - Three Terminal Type ..............................................3-22
3.3.9.1 PICKUP TEST. ................................................................................3-22
3.3.9.2 OPERATE TIME TEST. .................................................................3-23
3.3.9.3 HARMONIC RESTRAINT TEST. ................................................3-23
3.3.9.4 INSTANTANEOUS TEST. ............................................................3-24
3.3.9.5 TARGET TEST. .............................................................................3-24
3.3.10 Differential Relay - Independent Coil Type ............................................3-25
3.3.10.1 SLOPE TEST. ..................................................................................3-25
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3.3.10.2 OPERATE TIME TEST. .................................................................3-26
3.3.10.3 HARMONIC RESTRAINT TEST. .................................................3-27
3.3.10.4 INSTANTANEOUS TEST. .............................................................3-27
3.3.10.5 TARGET TEST. ..............................................................................3-28
3.3.11 Voltage Relay Test...................................................................................3-28
3.3.11.1 SETUP. ...........................................................................................3-28
3.3.11.2 MINIMUM PICKUP TEST. ...........................................................3-29
3.3.11.3 TIMING TEST. ..............................................................................3-29
3.3.11.4 TARGET/SEAL-IN TEST. .............................................................3-30
3.3.12 Frequency Relay Test ..............................................................................3-30
3.3.12.1 SETUP. ............................................................................................3-30
3.3.12.2 PICKUP TEST. ................................................................................3-30
3.3.12.3 TIMING TEST. ...............................................................................3-31
3.3.12.4 TARGET/SEAL-IN TEST. .............................................................3-31
3.3.12.5 UNDERVOLTAGE INHIBIT TEST. .............................................3-32
3.3.13 Synchronizing/Reclosing or Synchrocheck Relay...................................3-33
3.3.13.1 PHASE ANGLE LIMIT TEST. ....................................................... 3-33
3.3.13.2 VOLTAGE LIMIT TEST. ...............................................................3-33
3.3.13.3 SLIP FREQUENCY LIMIT TEST. .................................................3-34
3.3.14 Single Phase Impedance Relay or Directional Overcurrent Relay Test..3-35
3.3.14.1 SETUP. ............................................................................................3-35
3.3.14.2 REACH/MINIMUM PICKUP TEST. ..............................................3-35
3.3.14.3 MTA TEST. .....................................................................................3-36
3.3.14.4 OPERATE TIME TEST. .................................................................3-36
3.3.15 Three Phase Impedance Relay Test .........................................................3-37
3.3.15.1 PREPARATION. ............................................................................3-38
3.3.15.2 REACH TEST. ...............................................................................3-39
3.3.15.3 MTA TEST. .....................................................................................3-40
3.3.15.4 OPERATE TIME TEST. .................................................................3-40
3.3.16 Ground Fault Overvoltage Relay.............................................................3-41
3.3.16.1 SETUP. ...........................................................................................3-41
3.3.16.2 OVERVOLTAGE PICKUP TEST. ................................................3-42
3.3.16.3 OVERVOLTAGE TIMING TEST. ................................................3-42
3.3.16.4 UNDERVOLTAGE INHIBIT TEST. ............................................3-42
3.3.17 DC Auxilliary/Time-Delay Relay Test....................................................3-42
3.3.17.1 PICKUP TEST. ...............................................................................3-42
3.3.17.2 TIMING TEST. ..............................................................................3-43
4.1 FAULT STATES...........................................................................................4-1
4.1.1 Prefault State............................................................................................4-1
4.1.2 Fault State ................................................................................................4-1
4.1.3 Postfa u l t S t a t e ... ........ ........ ........ ................. ........ ................ ........ .............. 4 -1
4.2 CHARACTERISTICS OF FAULT STATES ...............................................4-1
4.3 OPERATION MODE - STATIC VS. DYNAMIC .......................................4-2
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4.3.1 Static Fault Mode.....................................................................................4-2
4.3.2 Dynamic Fault Mode ...............................................................................4-3
4.4 TRIGGER/TIMER OPERATION.................................................................4-4
4.4.1 External Trigger Inputs............................................................................4-4
4.4.2 Trigger Threshold Levels.........................................................................4-4
4.4.3 Start Trigger (FLT) ..................................................................................4-4
4.4.4 Stop Trigger (TRIP).................................................................................4-5
4.4.5 Reset.........................................................................................................4-5
4.4.6 Timer Start ...............................................................................................4-5
4.4.7 Two-Wire Pulse Timing ..........................................................................4-5
4.4.8 Timing in Cycles......................................................................................4-5
4.4.9 Testing SCR Output Type Relays............................................................4-5
4.5 CURRENT MODES......................................................................................4-6
4.5.1 Curre n t Rang e ............. ................ ........ ......... ................ ........ ................ ....4-6
4.5.2 HARMONIC Current Mode ....................................................................4-7
4.5.2.1 DEFINITION OF PERCENTAGE HARMONIC. ..........................4-8
4.5.2.2 SPECIAL N O TES. ..... ................ ......... ........ ................ ........ ............4-8
Section 5
Advanced Operation
5.1 MENU OPERATION ....................................................................................5-1
5.1.1 Basic Usage..............................................................................................5-1
5.1.1.1 ACTIVATING THE MAIN MENU. ..............................................5-1
5.1.1.2 SELECTING MENU ITEMS. ........................................................5-1
5.1.1.3 MENU NAVIGATION. .................................................................5-1
5.2 SETTINGS.....................................................................................................5-5
5.2.1 Reset to Defaults......................................................................................5-5
5.2.2 Fault Type................................................................................................5-5
5.2.2.1 VECTOR MODE. ...........................................................................5-5
5.2.2.2
Φ−N,Φ−Φ, 3Φ
MODE. ............................................................................5-5
5.2.3 Harmonics................................................................................................5-6
5.2.3.1 HARMONICS OPTIONS. ..............................................................5-6
5.2.4 Parallel Current........................................................................................5-6
5.2.5 Ramps ......................................................................................................5-7
5.2.5.1 FREQUENCY RAMPING. ............................................................5-8
5.2.5.2 PHASE RAMPING. .......................................................................5-8
5.2.5.3 VOLTAGE RAMPING. .................................................................5-8
5.2.5.4 CURRENT RAMPING. .................................................................5-8
5.2.6 Frequency 2..............................................................................................5-8
5.2.7 Breaker Times (
5.2.8 AC Current Range
Bkr Times
(ACI Range)
)......................................................................5-9
..............................................................5-9
5.2.9 Reclose.....................................................................................................5-9
5.2.10 Fault Incidence Angle
5.2.11 Maximum Fault Duration
(FIA)
....................................................................5-10
(Max Flt Dur)
................................................5-10
5.2.12 Display Options .......................................................................................5-10
5.2.12.1 DEFAULT DISPLAY
(Hz &
Φ)
. ..................................................5-10
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5.2.12.2 SLOPE. ...........................................................................................5-11
5.2.12.3 IMPEDANCE. ................................................................................5-11
5.2.12.4 FREQUENCY & V/Hz. ..................................................................5-13
5.2.12.5 FREQUENCY & SLIP. ..................................................................5-13
5.3 QUICK TEST ................................................................................................5-13
5.4 PREFERENCES............................................................................................5-15
5.4.1 Button Tone .............................................................................................5-15
5.4.2 VI Module #1...........................................................................................5-15
5.4.3 VI Module #2...........................................................................................5-15
5.4.4 COM 1 RS-232 ........................................................................................5-15
5.4.5 COM 2 RS-232 ........................................................................................5-15
5.4.6 Assign Ports .............................................................................................5-15
5.4.7 LCD Contrast...........................................................................................5-16
5.5 INDEX...........................................................................................................5-18
5.6 OTHER ..........................................................................................................5-18
5.6.1 Version.....................................................................................................5-18
5.6.2 Calibration ...............................................................................................5-18
5.6.3 Printer Test...............................................................................................5-18
5.6.4 Diagnostics...............................................................................................5-18
5.7 DIGITAL I/O.................................................................................................5-20
5.7.1 Input Channel 1 (
5.7.1.1
TRIP (ie STOP)
5.7.1.2 EXTERNAL START
5.7.1.3
5.7.1.4
5.7.1.5
5.7.1.6
5.7.1.7
Pulse Timing.
Reset.
...............................................................................................5-20
Reclose.
Foot Switch.
Off.
..................................................................................................5-21
5.7.2 Input Channel 2 (
5.7.3 Input Debounce (
5.7.4 DC Current (
5.7.5 Output Channel 1 (
5.7.5.1
5.7.5.2 /
FAULT (NO)
FAULT (NC)
5.7.5.3 Breaker Open
5.7.5.4
5.7.5.5
5.7.5.6
PERMISSIVE
UNBLOCK
Off.
..................................................................................................5-22
5.7.6 Output Delay (
5.7.7
Version
.....................................................................................................5-22
I/P Chan 1
) ..................................................................5-20
. ..............................................................................5-20
(FLT (i e ST O P))
. .........................................5-20
..................................................................................5-20
...........................................................................................5-20
....................................................................................5-20
I/P Chan 2
I/P Debounce
IDC
) ...................................................................................5-21
O/P Chan 1
) ................................................................5-21
) .............................................................5-21
) .............................................................5-21
. ..................................................................................5-21
. .................................................................................5-21
(BKR OPEN : 52 B)
. ..................................................5-21
. .................................................................................5-22
. .....................................................................................5-22
O/P Delay
) ......................................................................5-22
6.1 ADVANTAGES OF QUICKTEST................... ...... .... ...... .... ...... .... ...... .... ....6-1
6.2 QUICKTEST ALGORITHMS......................................................................6-1
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6.3 QUICKTEST TERMINOLOGY AND ABBREVIA TIONS ........................6-2
6.4 SUMMARY OF OPERATION.....................................................................6-2
OVERCURRENT TEST
6.5 TIMED 1
Φ
..............................................................6-4
6.5.1 Test Description.......................................................................................6-4
6.5.2 Example 1Φ Test Descriptions ................................................................6-4
6.6 INSTANTANEOUS 1Φ OVERCURRENT TEST ......................................6-6
6.6.1 Test Description.......................................................................................6-6
6.6.2 Example 1Φ Instantaneous Over Current (50).........................................6-6
6.7 TIMED 1Φ UNDER VOLTAGE TEST . .. ......... ...... .... ...... .... ...... .... ...... .... ....6-8
6.7.1 Test Description.......................................................................................6-8
6.7.2 Example 1Φ Timed Under Voltage (27)..................................................6-8
6.8 INSTANTANEOUS 1Φ UNDER VOLTAGE .............................................6-10
6.8.1 Test Description.......................................................................................6-10
6.8.2 Example 1Φ Instantaneous Under Voltage (27) ......................................6-10
6.9 TIMED 1Φ OVER VOLTAGE TEST ..........................................................6-12
6.9.1 Test Description.......................................................................................6-12
6.9.2 Example 1Φ Timed Over Voltage (59)....................................................6-12
6.10 INSTANTANEOUS 1Φ OVER VOLTAGE TEST .....................................6-14
6.10.1 Test Description.......................................................................................6-14
6.10.2 Example 1Φ Instantaneous Over Voltage (59)........................................6-14
6.11 TR A N S FORMER DIFF ERENTIAL TEST. .. ................ ........ ........ .............. 6 -1 6
6.11.1 Test Description.......................................................................................6-16
6.11.2 Example Transformer Differential...........................................................6-17
Section 7
RS-232C Interface
7.1 RS-232C CONNECTION..............................................................................7-1
7.1.1 Interface Specifications............................................................................7-1
7.1.2 COM 1 RS232C Port...............................................................................7-1
7.1.2.1 COM 1 RS-232C CONNECTOR PIN ASSIGNMENTS. ..............7-1
7.1.3 COM 2 RS232C Port...............................................................................7-2
7.1.3.1 COM 1 RS-232C CONNECTOR PIN ASSIGNMENTS. ..............7-2
7.1.4 Baud Rate Selection.................................................................................7-2
7.1.4.1 COM 1 BAUD RATE. .................................... .... ...... .... ...... .... ...... ..7-2
7.1.4.2 COM 2 BAUD RATE. .................................... .... ...... .... ...... .... ...... ..7-2
7.1.5 XON/XOFF Handshaking .......................................................................7-3
7.2 COMMAND DESCRIPTIONS............................. ...... .... ...... .... ...... .... ...... ....7-3
7.2.1 Control Mode Programming......................................... .... ...... .... ...... .... ...7-3
7.2.2 Fault State Control...................................................................................7-3
7.2.3 External Data Mode.................................................................................7-5
7.2.4 Voltage Programming..............................................................................7-5
7.2.4.1 COMMANDS. ................................................................................7-5
7.2.4.2 EXAMPLES. ..................................................................................7-6
7.2.5 Current Control........................................................................................7-6
7.2.6 Phase Control...........................................................................................7-7
7.2.6.1 COMMANDS. ................................................................................7-7
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7.2.6.2 EXAMPLES. ..................................................................................7-8
7.2.7 Frequency Control/Programming............................................................7-8
7.2.7.1 COMMANDS. ................................................................................7-8
7.2.7.2 EXAMPLES. ..................................................................................7-9
7.2.8 RS-232 Control........................................................................................7-10
7.2.9 Print Commands ......................................................................................7-12
7.2.10 Other Commands .....................................................................................7-14
7.2.11 DC Voltage Control .................................................................................7-15
7.2.12 Digital Input/Output and DC Current Control.........................................7-16
7.3 PROGRAMMING HINTS ............................................................................7-17
ALPHABETICAL RS-232 COMMAND SET
APPENDIX A
....................................................................................... ...................... ..........A-1
APPENDIX B
POWERSCOPE PROGRAM
B.1 INTRODUCTION .........................................................................................B-1
B.1.1 Features....................................................................................................B-1
B.1.2 Operation Instructions..............................................................................B-2
B.1.3 Button Bar ...............................................................................................B-2
B.1.4 Configuring the Comm Port ....................................................................B-2
B.1.5 System Configuration ..............................................................................B-3
B.1.6 Operating Modes......................................................................................B-3
B.1.6.1 REAL TIME MODE. .....................................................................B-3
D.1.6.2 DEMO MODE. ...............................................................................B-3
B.1.7 Displaying Phasor & Impedance Diagrams.............................................B-4
B.2 PHASORS WINDOW...................................................................................B-5
B.3 SYMMETRICAL COMPONENTS ..............................................................B-5
B.3.1 Current Components Window.................................................................B-5
B.3.2 Voltage Components Window.................................................................B-6
B.3.3 Interpretation of Symmetrical Components Displays..............................B-7
B.4 IMPEDANCE WINDOW... .... .. .... .... .. .... .... ..... .... .... .. .... .... .. .... .... .. .... .... .. .... ..B-8
B.4.1 Using the Impedance Window................................................. .......... ......B-8
B.4.2 Defining & Displaying Theoretical Relay Characteristics ......................B-9
B.5 POWER WINDOW.......................................................................................B-10
B.6 SPECIAL NOTES .........................................................................................B-10
ALPHABETICAL RS-232 COMMAND SUMMARY
C.1 USER ERRORS - INAPPROPRIATE BUTTON PRESSING.....................C-1
C.2 HARDWARE ALARMS...............................................................................C-2
C.3 SOFTWARE ALARMS................................................................................C-4
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............................................................................................................... D-1
.................................................................................................................E-1
GLOSSARY
INDEX
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LIST OF ILLUSTRATIO NS
Figure Title Page
Number Number
3.1 CONTROL MODULE PANEL.....................................................................3-1
3.2 D IGITAL I/O PA N EL ...... ........ ................ ......... ................ ........ ................ ....3-4
3.3 DC VOLTAGE PANEL................................................................................3-5
3.4 AC VOLTAGE PANEL................................................................................3-6
3.5 CONTROL MODULE REAR PANEL.........................................................3-7
3.6 TYPICAL THREE PHASE SYSTEM ..........................................................3-9
3.7 DISPLAY MESSAGES.................................................................................3-10
3.8 TEST CONNECTIONS.................................................................................3-10
3.9 BASIC AC ADJUSTMENTS........................................................................3-12
3.10 FREQUENCY ADJUST................................................................................3-14
3.11 DC VOLTAGE ADJUST..............................................................................3-15
3.12 DC CURRENT ADJUST ..............................................................................3-16
3.13 AC VOLTAGE VECTOR.............................................................................3-17
3.14 AC CURRENT VECTORS...........................................................................3-18
3.15 OVERCURRENT RELAY TEST .................................................................3-18
3.16 THREE TERMINAL DIFFERENTIAL RELAY TEST...............................3-22
3.17 INDEPENDENT COIL DIFFERENTIAL RELAY TEST ...........................3-25
3.18 VOLTAGE RELAY TEST............................................................................3-28
3.19 SYNCHRONIZING RELAY TEST..............................................................3-33
3.20 IMPEDANC E RELAY TEST .............. ...... ......... ...... .... ...... .... ...... .... ...... .... ..3-35
3.21 THREE PHASE IMPEDANCE RELAY TEST............................................3-37
3.22 IMPEDANC E RELAY TEST DISPLAY ................................................... ..3-38
3.23 GROUND OVERVOLTAGE RELAY TEST...............................................3-41
3.24 DC RELAY PICKUP TEST..........................................................................3-42
3.25 DC RELAY TIMING TEST..........................................................................3-43
4.1 EXAMPLE OUTPUT SEQUENCE (PREFAULT OFF)..............................4-2
4.2 EXAMPLE OUTPUT SEQUENCE (PREFAULT ON) ...............................4-2
4.3 FAULT STATE DIAGRAM FOR STATIC MODE ....................................4-3
4.4 FAULT STATE DIAGRAM FOR DYNAMIC MODE ...............................4-3
4.5 TEST CONNECTIONS FOR SC R OUTPUT TYPE RELAY . .... .... .... .... .... 4-6
4.6 DIFFERENTIAL RELAY HARMONIC RESTRAINT TESTING .............4-7
5.1 ROOT MENU................................................................................................5-1
5.2 MENU TREE SETTINGS.............................................................................5-4
5.3 PARALLEL MENU ......................................................................................5-7
5.4 PARALLEL CONNECTION........................................................................5-7
5.5 MENU TREE: PREFERENCES...................................................................5-14
5.6 MENU TREE: INDEX/OTHER....................................................................5-17
5.7 MENU TREE: DIGITAL I/O ........................................................................5-19
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TABLE OF CONTENTS
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INTRODUCTION - Section 1
INTRODUCTION
1.1 DISTINCTIVE CHARACTERISTICS
• Unique expandable modular design.
• Economical.
• Individual display and control of all voltages,
currents and phase angles.
• Built in “Quick-Test” functions for most
common relay elements.
• Output test reports directly to a printer.
• On- or Off-line programming via keypad and/or
rotary knob.
• Many productivity enhancing features.
• Static and dynamic testing.
• Compact and rugged.
1.2 GENERAL DESCRIPTION
The Manta MTS-3000 is a flexible modular test system, geared particularly towards protective relay
testing, but configurable for numerous other applications requiring AC and/or DC voltage and/or current
sources.
Systems can be as simple as a single phase AC current source, or as complex as a full three phase AC
voltage and current source with DC voltage and current, multi-channel digital input operation sensing and
digital output control, and accurate timing measurement capability. Multi-system control, with one system
functioning as the master to one or more slave units, is also possible. An economically priced system may
be configured with only the minimum number of features required for today’s applications, with the
flexibility to expand as tomorrow’s requirements and budgets dictate.
The MTS-3000 is specifically engineered for a short learning curve. A ‘Vector Control’ mode provides
for individual amplitude and phase adjustment of all AC voltage and current outputs, with the added
convenience of numeric keypad input for quick absolute control settings, or rotary knob control of
incremental changes to settings. Additional ‘intelligent control’ modes automate much of the setup
required for three phase test applications, and provide single-input control of multiple parameters as
found, for example, during phase-to-phase or three phase fault simulations.
A unique feature of the equipment is its ability to automatically test many protective relays using built-in
automated test routines. This permits fast, consistent testing for routine work that may not justify the
expense and learning curve necessary for full computer based testing. Field reports can be generated on
the spot using a portable printer.
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MTS-3000 OPERATION AND REFERENCE MANUAL 1-1
INTRODUCTION - Section 1
An MTS-3000 System consists of a Control Module (CM), and one or more AC output modules. These
modules connect together to form a stack, with the control module at the top.
An AC Current Module (ACI), an AC Voltage Module (ACV), or an AC Voltage/Current Module (ACV/
I) may be easily added or removed from a stack to configure the system to your needs. All the required
electrical connections are made when a module is added to the stack. The CM recognizes and configures
the system for all the modules in a stack on power up. This "plug and play" capability allows modules to
be added or removed at any time.
1.3 APPLICATIONS
1.3.1 Standard Applications
•
Static and dynamic testing of virtually all protective relays.
•
Calibration and verification of V, I, W, Z, and Frequency transducers.
•
T esting of fault recorders, fault locators, and automatic voltage regulators.
•
Testing and calibration of metering systems.
1.4 TERMINOLOGY
The following terminology is use d throughout this user’s guide:
1.4.1 AC Current Module (ACI)
The AC current module or ACI refers to the MTS-3060 module. This module can have from one to three
AC current chan nels.
1.4.2 AC Volt age Module (ACV)
The AC voltage module or ACV refers to the MT S- 3040 module. This module can have from one to three
AC voltage channels.
1.4.3 Control Mo du l e (CM )
Control module or CM refers to the upper most module that makes up the MTS stack.
1.4.4 Device Under Test (DUT)
DUT refers to the protective relay or similar device being tested.
1.4.5 Dynamic Fault Mode
This mod e re fers to t he fault mode that’s used w he n p erforming operate time t est s. See Section 4. 3 .2 fo r a
detailed explanat ion.
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INTRODUCTION - Section 1
1.4.6
Dynamic Relay Testing
Dynamic relay testing refers to testing of relays using instantaneous steps and/or ramping of voltage and
current inputs. To closely simulate the conditions the device sees in service, the voltages and currents are
typically stepped from a nominal, prefault level, to a predetermined fault level.
1.4.7 MTS
The "modular test system" MTS-3000 and its various optional modules.
1.4.8
On Panel Testing
This refers to testing of relays and relay systems while they’re installed on panels or equipment racks.
This involves injecting voltages or currents directly into the panel to test the complete system response,
and to verify the correct input/output wiring and phasing of the panel.
1.4.9 Programming Mode
Programming mode is used to preset AC output parameters for either prefault or fault state. The AC
outputs are disabled while the system is in programming mode.
1.4.10 Static Relay Testing
This refers to relay testing by slowly varying inputs to accurately locate pickup points and to perform
repeatable measurements.
1.4.11 Test Mode
The AC outputs are enabled while in test mode.
1.4.12 V/I Module (VI)
The V/I module or VI refers to the MTS-3030 module. This module can be ordered with either one or two
convertable AC output channels. Each channel can operate in either voltage mode (0-150 V), or current
mode (0-25 A).
1.4.13 WFG Module
WFG refers to waveform generation modules such as the MTS-3030, MTS-3040, and MTS-3060.
1.5 SAFETY CONSIDERATIONS
The MTS-3000 can generate high levels of current and voltage. Incorrect usage may cause personal injury
and/or damage to the instrument. The user must be qualified to work safely in the intended application
environment of this instrument. Non-adherence to the following minimum requirements constitutes
misuse of the Modular Test System, MTS, and the manufacturer accepts no liability for damages arising
from such misuse.
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MTS-3000 OPERATION AND REFERENCE MANUAL 1-3
INTRODUCTION - Section 1
The instrument case must always be effectively grounded. The rear panel grounding stud of the Control
Module, CM, must be connected by a minimum 12-gauge wire to a known secure ground. This ground is
in addition to the power cord ground.
All leads and connectors must be in good condition and rated for the voltage and current carrying
requirements. Current outputs must be securely connected with a minimum 12 gauge leads with C-hook
term ina ls.
MTS outputs must not be connected to live outputs or to live equipment. All outputs must be turned off
before making any changes to the connec tions. Never exceed the following maximum ratings:
(a) 300V rms to ground on any input, power or control.
(b) 300VDC differential to the contact (external trigger) inputs.
(c) 5Arms or 5A DC through any contact output.
All rear panel fuses must contain properly rated fuses.
1.6 TECHNICAL CONSIDERATIONS
The optional DC current source, when enabled, will source up to 2.5A of DC current out of the two left
terminals of Input 1 of the DIGITAL I/O module. The low impedance nature of this source could provide
the necessary trip path to inadvertently trip an auxillary relay or circuit breaker. The DC current output
only should be used when the protective relays trip output circuit is properly isola te d.
1.7 TECHNICAL SUPPORT
The design of the MTS reflects decades of experience in the electric power industry. However, we
recognize that situations may be encountered that were not considered during its design. We encourage
you to forward any questions, problems or suggestions to us either through the representative from whom
you purchased your system, or directly to us via the phone, fax or e-mail numbers found on the front
cover.
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SPECIFICATIONS
NOTE: All specifications are subject to change. All AC quantities are RMS values, except as
otherwise noted.
Power outputs are specified for nominal 120VAC/60Hz or 240VAC/50Hz power input,
and 25°C ambient operating temperature.
For some configurations, the 15A / 7.5A rating may be exceeded if all outputs are at
full power. Derating applies for lower input power voltages and higher ambient
temperatures. For all current outputs, maximum obtainable current will vary inversely
with load impedance. For extended operation at high power output levels, ensure
adequate cooling (i.e. don’t obstruct cooling intakes or exhaust outlets).
2.1 INPUTS
110-130 VAC @ 15A, Single phase, 47-63 Hz, or
210-250 VAC @ 7.5A, Single phase, 47-63 Hz (Future)
SPECIFICATIONS - Section 2
2.1.1 MTS-3010 Digital I/O Module (Optional)
NC or NO wet/dry contact inputs, Start/Stop trigger inputs for fault initiation/termination
Programmable contact de-bounce delay, 0.1 - 999.9 msec, 0.1 msec resolution
300VDC/AC maximum, fully isolated (12V threshold level, 52K ohms impedance minimum)
2.2 OUTPUTS
2.2.1 AC Voltages: MTS-3040 AC Voltage Module
One to three direct coupled outputs depending on configuration, connected wye (common neutral)
0-150V rms phase to neutral, direct coupled
100 VA per phase maximum @ 70V Φ-N output, P.F.=1.0
125 VA per phase maximum @ 150V Φ-N output, P.F.=1.0
Setting resolution 0.01V:Accuracy greater of 0.25% of setting or 0.1% of full scale
Fully short circuit proof and thermal overload protected
2.2.2 AC Currents: MTS-3060 AC Current Module
0-25A rms, 250 VA maximum per channel, direct coupled
12A rms continuous
Three-phase wye current: 12A rms continuous per channel
25A rms per channel into 0.25 ohm load
Single phase current, three channels in parallel, high current range: 0-75A rms, 300 VA, 30% duty cycle
Single phase current, three channels in parallel, high voltage range: 0-35A rms, 600 VA, 30% duty cycle
Fully open and short circuit proof and thermal overload-protected
Setting resolution 0.001 Amps: Accuracy greater of 0.25% of setting, or 0.1% of full scale
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SPECIFICATIONS - Section 2
2.2.3 AC Voltage and Current: MTS-3030 AC Voltage/Current Module
One or two outputs, depending on configuration, connected common neutral
0-150V rms phase to neutral, direct coupled, specifications as for MTS-3040 module above
0-25A rms, 120 VA maximum per channel, specifications as for MTS-3060 module above
Can be configured for any voltage and/or current combination of two output channels
Fully open and short circuit proof and thermal overload-protected
2.2.4 Output frequency
Power Line, frequency and phase locked
Variable: 8.000 - 99.999 Hz (0.001 Hz resolution, 0.01% accuracy)
100 - 499.99 Hz (0.01 Hz resolution, 0.02% accuracy)
500 - 1000 Hz (0.1 Hz resolution, 0.02% accuracy)
Two independently variable frequencies are available.
2.2.5 Harmonics
Harmonic mode for harmonic restraint testing
Single harmonic, 2nd through 10th, maximum harmonic frequency = 1000 Hz
Harmonic amplitude 0 - 50% of fundamental
2.2.6 Phase control
Phase angle of all AC outputs adjustable from 0 to 360°
Setting resolution: 0.1° (Accuracy: 0.5°)
2.2.7 DC Voltage: MTS-3020 DC Voltage Module
This optional module installs in the Control Module case.
DC voltage output 0-300 VDC @ 100W maximum
Setting resolution 0.1V: Accuracy greater of 1% of setting or 0.75V
Current Limit: 2A, fully short circuit proof
2.2.8 DC Current: Current Source option
0-2.5A DC @ 20VA maximum
Maximum compliance voltage: 12V
Setting resolution: 0.001 AmpsAccuracy: greater of 1% of setting, or 10mA
Current Limit 2.5A, fully open and short circuit proof
2.2.9 MTS-3010 Digital I/O Module (Optional)
Programmable auxiliary contact output, fully isolated
5A @ 300VAC, 1A @ 125VDC, 0.5A @ 250VDC, 0.35A @ 300VDC resistive load
Breaker signal (52A/52B) simulation
Permissive/unblock signal simulation with programmable delay, 0 - 9999.0 msec, 0.1 msec resolution.
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SPECIFICATIONS - Section 2
2.3 METERING
2.3.1 Time measurem en t
Measures interval from eithe r fault initiation or an external start trigger signal
0 - 99999 sec, auto-ranging scale
0 - 99999 cycles, auto-ranging scale
Resolution: 0.1 ms/ 0.1 cyclesAccuracy: ± 0.5ms, ± 1 digit
Two wire pulse timing mode
2.3.2 Frequency measurement
Resolution, 8Hz - 99.999Hz: ± 0.001 HzAccuracy: ± 0.01 Hz
Resolution, 100Hz - 499.99Hz: ± 0.01 Hz Accuracy: ± 0.05 Hz
Resolution, 500Hz - 1000.0Hz: ± 0.1 Hz Accuracy: ± 0.1 Hz
2.4 STATIC/DYN AMIC TES TING CAPABILITI ES
Phase to ground, phase to phase and three phas e faul ts (when equipped with sufficient modules)
Phase, frequency, volta ge and current ramping with adjustable ramp rates
Programm abl e au to -rec los e t ime d el ay an d rec lose-into-fault ev ent s
Programmable breaker opening and closing times
Fault incidence angle control (point-on-wave)
2.5 OPTIONS
Control Module Options:
Option 01 MTS-3010 Programmable Digital I/O Module with trigger channels.
Option 02 DC Current Source. Option 01 must be present.
Maximum configuration: one per Contro l Module, two if there’s no DC Voltage Module.
Option 03 Digital I/O Expansion. Option 01 must be present (Future).
Option 04 MTS-3020 DC Voltage Module.
Maximum configuration: one per Contro l Module.
Option 05 240V, 50/60 Hz line input Control Module.
2.5.1 System Options
Option 18 Digital I/O and DC Voltage Test Lead Kit
Option 19 Additional Operati on and Reference Manual
Option 20 Additional One Year extended warranty
2.5.2 AC Voltage Module Options
Option 41 240V, 50/60 Hz line input
Option 42 2nd AC Voltage Channel
Option 43 3rd AC Voltage Channel
Option 44 AC Voltage Test Lead Kit
Maximum configuration: three Channels per ACV Module, two Modules per stack
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SPECIFICATIONS - Section 2
2.5.3 AC Current Module Options
Option 61 240V, 50/60 Hz line input
Option 62 2nd AC Current Channel
Option 63 3rd AC Current Channel
Option 64 AC Current Test Lead Kit
Maximum configuration: three Channels per ACI Module, two Modules per stack.
2.5.4 AC Voltage/Current Module Options
Option 31 240V, 50/60 Hz line input
Option 32 2nd AC Current Channel
Option 33 3rd AC Current Channel
Option 34 AC Current Test Lead Kit
Maximum configuration: two Channels per ACV/I Module, two Modules per stack.
2.6 PHYSICAL CHARACTERISTICS
2.6.1 Minimum Configuration
Control Module and one AC Voltage module, one AC Current module, or one AC Voltage/Current
module. Modules connect together in a stack, with the Control Module on the top, shipped in a hard shell
shipping case with a removable protective front cover.
2.6.2 Control Module
14 3/4" W x 6 3/4" H x 11 3/8" D (37.5cm W x 17.2cm H x 29.0cm D)
Weight: 17.8 lbs. (8.1 kg). Includes MTS-3010, MTS-3020, top and bottom covers.
Built-in side carry handles.
2.6.3 AC Voltage Module
14 3/4" W x 6 3/4" H x 11 3/8" D (37.5cm W x 17.2cm H x 29.0cm D)
Weight with three Channels: 23.2 lbs (10.5 kg)
2.6.4 AC Current Module
14 3/4" W x 6 3/4" H x 11 3/8" D (37.5cm W x 17.2cm H x 29.0cm D)
Weight with three Channels: 28.8 lbs (13.1 kg)
2.6.5 AC Voltage/Current Module
14 3/4" W x 6 3/4" H x 11 3/8" D (37.5cm W x 17.2cm H x 29.0cm D)
Weight with two Channels: 27 lbs (12.2 kg)
2.6.6 Three Phase System: Control Module, AC Voltage and AC Current Modules
Weight with three voltage and three current channels, top and bottom covers and the protective front
cover 69.8 lbs (31.7 kg)
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OPERA TION SUMMARY
3.1 FRONT PANEL LAYOUT
3.1.1 MTS-3 000 C o ntrol Mo du l e, CM
OPERATION SUMMARY - Section 3
FIGURE 3.1 CONTROL MODULE PANEL
1. ENABLE PUSHBUTTON
This pushbutton enables the AC outputs. If the enable status LED isn’t lit, the outputs are disabled
and there will be no AC current or voltage available from the output terminals of the AC output
modules. This is defined as Programming mode.
When the outputs are e nabled by pressing this pushbutton, the enable status LED will light, as will
the output channel warning LEDs of all AC output module channe ls that are equipp ed with voltage
or current sources. This is define d as Test mode.
2. PREFAULT PUSHBUTTON
This pushbutton selects the Prefault state for off-line programming (ENABLE off) or toggles the
Prefault mode on or off (ENABLE on, Test mode). Current status is indicated by the PREFAULT
LED.
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OPERATION SUMMARY - Section 3
•ON - System is in Programming mode, prefault state is selected.
•BLINKING - System is in Test mode, prefault state is selected and active.
•OFF - Either the system isn’t in PREFAULT state or Prefault mode isn’t selected.
3. FAULT PUSHBUTTON
This pushbutton selects Fault state for off-line programming (ENABLE off), or causes the MTS to
enter Fault state (ENABLE ON, Test mode).
Momentary operation (<250 msec.) of the pushbutton latches the MTS into Dynamic Fault state
until RESET is pressed or the Device Under Test (DUT) operates, as detected by an Input channel
on the DIGITAL I/O module. Sustained pressing of the pushbutton maintains the equipment in
Fault state only as long as it’s held depressed, and trip operations of a DUT will be annunciated,
but won’t trip off the outputs.
Current status is indicated by the FAULT LED
• ON - System is in Programming mode, FAULT is selected for programming
• BLINKING - System is in Test mode, FAULT is selected and active
• OFF - System is in either PREFAULT or POSTFAULT state
4. RESET PUSHBUTTON
This pushbutton is pressed to restore the system to Prefault state either following an operation of a
DUT (i.e. the system is in Postfault mode), or during a Fault sequence. It clears the timer reading
to zero while restoring any frozen AC output readings to normal.
When the TRIP LED above the RESET button is on, it indicates the system is in POSTFAULT
state as a result of a trip (DUT operation) during FAULT state.
5. MODIFY KNOB
This rotary knob can be used to make incremental changes to any currently selected parameter,
such as amplitude, phase, or frequency. Clockwise increases the value; counterclockwise decreases
it. Turning it faster makes larger coarser adjustments; slower makes smaller finer adjustments.
When performing data entry with the keypad, the knob is disabled until ENTER is pressed. The
knob is also used to scroll through menu items.
6. NUMERIC KEYPAD
These keys are used to enter numeric data, and to modify the currently selected parameter, such as
amplitude, phase, or frequency.
7. ENTER KEY
This key is used to signal the end of a numerical entry sequence, and to restore operation of the
MODIFY knob.
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OPERATION SUMMARY - Section 3
8. CANCEL ENTRY KEY
This key is pressed to clear all numbers just entered on the keypad. The BACK pushbutton (10)
will clear a single numeric entry. A second press of CE will restore the previously entered value.
9. FUNCTION KEYS
These keys are press ed to select or enable modification of a reading or parameter on the respec tive
line of the adjacent four-line liquid crystal display (LCD).
10. BACK PUSHBUTTON
This pushbutton is pressed to back up one level through the menu which appears on the display
above it, as well as to back up one key entry on the numeric keypad (6). Pressing it during normal
operation will force the display to menu mode and directly restore the user to the last menu option
accessed.
11. MENU PUSHBUTTON
Pressing this pushbutton toggles on or off an extensive menu which appears on the display above
it.
12. HELP PUSHBUTTON
Context sensitive help regarding operati on of many of the MTS system’s controls may be called up
by pressing this pushbutt on.
13. POWER PUSHBUTTON
This pushbutton turns on or off the mains power to the Control Module and to any AC output
modules connected to the Control Modul e.
14. ALPHANUMERIC DISPLAY
This Liquid Crystal Displa y (LCD) provides infor mation on current equ ipment status , and displa ys
numerous menu options.
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OPERATION SUMMARY - Section 3
3.1.2 MTS-3010 Digital I/O Module
FIGURE 3.2 DIGITAL I/O PANEL
1. OUTPUT CONTACT TERMINALS
By default these contacts are configured, as indicated by the NC/NO symbols shown on the panel,
and contact changeover follows Fault mode status. Other modes are programmable via the menu.
2. INPUT SENSING TERMINALS
Operation of a Device Under Test (DUT) may be sensed by these inputs, either a dry or wet
contact operation, or a change in status of an AC/DC voltage. Debounce times on input sensing are
programmable. These high impedance inputs are galvanicly isolated from one another and from
the MTS system.
3. SET PUSHBUTTON
Selection of this pushbutton opens menu options on the Control Module display to allow
programming of options for the inputs and outputs, plus adjustment of the DC Current, if this latter
option is fitted.
4. ON PUSHBUTTON
This pushbutton toggles on or off the optional DC Current output to the two left terminals of Input
1. When DCI is enabled by this switch, whenever an external relay contact (in series with a DC
current operated target) closes, the programmed DC current will flow through the external circuit.
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5. TONE PUSHBUTTON
This pushbutton togg les on or off the audible indicator associated with the change of state det ector
circuits monitoring Input 1.
6. OPERATION SENSE LED
This LED illuminates if a change of contact state from NO to NC, or a change in voltage from off
to on, is sensed by Input 1. It’s particularly useful if the output contact of the relay being tested
cannot easily be observed, as is often the case with electronic relays.
3.1.3 MTS-3010 DC Voltage Source
OPERATION SUMMARY - Section 3
1. OUTPUT TERMINALS
Up to 300VDC at 100 W is available here.
2. DC VOLTAGE DISPLAY
The present setting of the DC voltage module is displayed on this LED display.
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FIGURE 3.3 DC VOLTAGE P ANEL
OPERATION SUMMARY - Section 3
3. SET PUSHBUTTON
Pressing this pushbutton opens a menu on the main display of the Control Module to enable
adjustment of the DC voltage setting via the MODIFY keyboard and rotary knob.
4. ON PUSHBUTTON
This pushbutton toggles the output of the module on and off. Output On status is indicated by
illumination of the LED above the pushbutton.
3.1.4 MTS-3040 AC Voltage Module
Note: Features of the MTS-3060 AC Current and -3030 Voltage/Current modules are virtually
identical.
1. ALPHANUMERIC DISPLAY
This Liquid Crystal Display (LCD) provides information on current equipment status, including
amplitude and phase angle of each output source fitted to the unit.
2. FUNCTION KEYS
These keys are used to select a parameter prior to modifying it. The first press selects amplitude of
a given output, while the second selects its phase angle.
3. COOLING INTAKE/FILTER
The filter on this cooling intake may be removed for cleaning if necessary.
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FIGURE 3.4 AC VOLTAGE PANEL
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4. OUTPUT STATUS LEDS
Illumination of these LEDs indicates that the outputs are enabled and capable of delivering energy
to a connect ed load, even if the output settings are presently at zero. If a module doesn’ t have a full
complement of output sources, only those outputs equipped with an output source will illuminate.
5. OUTPUT TERMINALS
Connection is made here to the device(s) under test.
3.2 REAR PANEL LAYOUT
3.2.1 MTS-3 000 C o ntrol Mo du l e Re ar Panel
OPERATION SUMMARY - Section 3
FIGURE 3.5 CONTROL MODULE REAR PANEL
1. COOLING INTAKES
For adequate cooling, ensure that these are not obstructed.
2. COOLING EXHAUST
Ensure that warm air exiting isn’t restricted nor reflected back towa rds intakes.
3. AC INLET
For 120V or 240V main supply, as indicated by panel label.
4. COM 1 RS232C PORT
Female DB-9 serial port wired as a DCE (Data Communications Equipment) for external PC or
DUT.
5. IRIG B CONNECTORS (OPTIONAL)
Connect to IRIG B datastream from GPS receiver.
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OPERATION SUMMARY - Section 3
6. COM 2 RS232C PORT
Male DB-9 serial port wired as a DTE (Data Terminal Equipment) for external PC.
7. MAINS CIRCUIT BREAKER
Press to reset if breaker trips.
8. EXTERNAL CONNECTOR
External I/O connector to run one or more systems in a master-slave configuration.
9. PRINTER PORT
Connects to external printer to print Quick-Test reports.
10. GROUNDING STUD
Connect to a secure external ground during testing.
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OPERATION SUMMARY - Section 3
3.3 BASIC APPLICAT IONS
3.3.1 Getting Started
Because of its modularity, the MTS-3000 series system can be configured in many different ways. It’s not
feasible to provide a detailed operation description for every possible configuration. Except where noted,
the assumption is the equipment is configured as a three phase protective relay test system equipped with
three AC voltage sources, three AC current sources, a digital I/O module with DC current sourcing, and a
DC voltage module, as illustr ated below. Specific examples of less fully equipped syste ms will be provided
in the Detailed Operation section of this manual.
FIGURE 3.6 TYPICAL THREE PHASE SYSTEM
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OPERATION SUMMARY - Section 3
Connect mains power to the Control Module (CM), the rear panel chassis safety ground to a known good
ground, and press PWR. A momentary message, indicating software version number and other
information, appears briefly on the CM display. LEDs are turned on briefly, and then the default displays
will appear as shown below:
The voltage and current modules will show default values as shown respectively below:
FIGURE 3.7
DISPLAY MESSAGES
These values correspond to a balanced three-phase voltage of 120V phase-to-phase, and current which will
be in phase with the voltage. If an output module isn’t fitted with a full complement of output sources,
there will be less data on the display(s). If the current output module, for example, has only two current
sources, only lines IA and IB will appear on the display.
The example that follows illustrates some of the important operating aspects of the system. It’s assumed
that a single phase impedance relay with a time delay response is connected to the MTS-3000 system,
operating at approximately 50 volts and seven amps, with a phase shift between voltage and current of 75°.
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FIGURE 3.8
TEST CONNECTIONS
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