GE MULTILIN 269 MOTOR MANAGEMENT RELAY Series User Manual

TABLE OF CONTENTS
i
1 INTRODUCTION
1.1 Motor Protection Requirements................1-1
1.2 269 Relay Features..................................1-1
1.3 Typical Applications.................................1-1
1.4 Order Code/Information..........................1-3
1.5 Technical Specifications...........................1-4
2 INSTALLATION
2.1 Physical Dimensions...............................2-1
2.2 Mounting.................................................2-6
2.3 External Connections...............................2-6
2.4 Control Power........................................2-12
2.5 Phase CT Inputs....................................2-12
2.6 Ground CT Input....................................2-15
2.7 Trip Relay Contacts...............................2-15
2.8 Alarm Relay Contacts............................2-16
2.9 Auxiliary Relay #1 Contacts...................2-16
2.10 Auxiliary Relay #2 Contacts.................2-16
2.11 RTD Sensor Connections.....................2-17
2.12 Emergency Restart Terminals..............2-18
2.13 External Reset Terminals.....................2-18
2.14 Analog Output Terminals
(Non-Isolated)......................................2-18
2.15 Programming Access Terminals...........2-18
2.16 Display Adjustment..............................2-19
2.17 Front Panel Faceplate..........................2-19
2.18 269 Drawout Relay..............................2-19
2.19 Meter Option Installation......................2-23
3 SETUP AND USE
3.1 Controls and Indicators............................3-2
3.2 269 Relay Display Modes........................3-6
3.3 ACTUAL VALUES Mode..........................3-6
3.3a Starts/Hour Timer...............................3-16
3.3b Time Between Starts Timer..................3-16
3.3c Cause of Last Trip................................3-16
3.3d Cause of Last Event.............................3-16
3.4 SETPOINTS Mode.................................3-16
3.5 HELP Mode..........................................3-41
3.6 TRIP/ALARM Mode...............................3-41
3.7 Phase CT and Motor Full Load Current
Setpoints..............................................3-44
3.8 Acceleration Time Setpoint....................3-44
3.9 Inhibits..................................................3-44
3.10 Unbalance Setpoints............................3-45
3.11 Ground Fault (Earth Leakage)
Setpoints............................................ 3-46
3.12 Undercurrent Setpoints........................3-49
3.13 Rapid Trip / Mechanical Jam Setpoints3-49
3.14 Short Circuit Setpoints.........................3-50
3.15 Immediate Overload Alarm Level
Setpoint...............................................3-50
3.16 Stator RTD Setpoints...........................3-50
3.17 Other RTD Setpoints............................3-51
3.18 Overload Curve Setpoints....................3-51
3.19 Thermal Capacity Alarm......................3-55
3.20 Thermal Memory.................................3-55
3.21 Emergency Restart..............................3-56
3.22 Resetting The 269 Relay......................3-57
3.23 269 Relay Self-Test..............................3-57
3.24 Statistical Data Features.....................3-58
3.25 Factory Setpoints................................3-58
3.26 Meter Option.......................................3-58
4 TESTING
4.1 Primary Injection Testing.........................4-1
4.2 Secondary Injection Testing.....................4-1
4.3 Phase Current Input Functions................4-1
4.4 Ground Fault Current Functions..............4-4
4.5 RTD Measurement Tests.........................4-4
4.6 Power Failure Testing..............................4-5
4.7 Analog Current Output............................4-5
4.8 Routine Maintenance Verification.............4-5
4.9 Dielectric Strength (Hi-Pot) Test...............4-5
5 THEORY OF OPERATION
5.1 Hardware................................................5-1
5.2 Firmware.................................................5-1
6 APPLICATION EXAMPLES
6.1 269 Relay Powered from One of Motor
Phase Inputs..........................................6-1
6.2 Loss of Control Power Due to Short Circuit
or Ground Fault......................................6-1
6.3 Example Using FLC Thermal Capacity
Reduction Setpoint.................................6-1
APPENDIX A
269 UNBALANCE EXAMPLE........................A-1
APPENDIX B
269 Thermal Model.......................................B-1
269 RTD Bias Feature...................................B-2
APPENDIX C
269 RTD Circuitry.........................................C-1
APPENDIX D
2φ CT Configuration......................................D-1
APPENDIX E
Asymmetrical Starting Current......................E-1
APPENDIX F
269 Do's and Don'ts Checklist.......................F-1
APPENDIX G
Ground Fault and Short Circuit Instantaneous
Elements...............................................G-1
APPENDIX H
I. 269 CT Withstand......................................H-1
II. CT Size and Saturation.............................H-1
APPENDIX I
269 Commissioning Summary.......................I-1

GE MULTILIN 269 MOTOR MANAGEMENT RELAY Series Specifications

General

Brand	GE
Model	MULTILIN 269 MOTOR MANAGEMENT RELAY Series
Category	Relays
Language	English