239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL
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239 Motor Protection Relay
Chapter 7: Testing
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239
Motor Protection Relay
CAUSE OF LAST TRIP:
MECHANICAL JAM
Testing
7.1
Testing
7.1.1
Primary Injection Testing
Prior to relay commissioning at installation, complete system operation can be verified
by injecting current through the phase and ground CTs. To accomplish this, a primary
high current injection test set is required. Operation of the entire relay system, except
the phase and ground CTs, can be checked by applying input signals to the 239 from a
secondary injection test set as described in the following sections.
Summary of Contents for Multilin 239
Page 6: ...TOC 4 369 MOTOR MANAGEMENT RELAY INSTRUCTION MANUAL TABLE OF CONTENTS ...
Page 20: ...1 14 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER 1 OVERVIEW ...
Page 48: ...3 10 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER 3 OPERATION ...
Page 96: ...4 58 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER 4 PROGRAMMING ...
Page 108: ...5 70 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER 5 MONITORING ...
Page 150: ...7 112 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER 7 TESTING ...
Page 152: ...A 2 239 MOTOR PROTECTION RELAY INSTRUCTION MANUAL CHAPTER A ...