Schweitzer Engineering Laboratories SEL-352-1 - SECTION 11: TESTING AND TROUBLESHOOTING

Date Code 20010731 Testing and Troubleshooting i
SEL-352-1, -2 Instruction Manual
TABLE OF CONTENTS
SECTION 11: TESTING AND TROUBLESHOOTING ........................11-1
Test Procedures .......................................................................................................................... 11-1
Test Aids Provided by the Relay ........................................................................................ 11-1
Test Methods ...................................................................................................................... 11-1
Target LED Illumination ............................................................................................ 11-1
Output Contact Assertion ........................................................................................... 11-2
Sequential Events Recorder (SER)............................................................................. 11-2
Low-Level Test Interface ................................................................................................... 11-2
Initial Checkout .......................................................................................................................... 11-3
Equipment Required........................................................................................................... 11-3
Checkout Procedure............................................................................................................ 11-3
Full Functional Test.................................................................................................................. 11-11
Equipment Required......................................................................................................... 11-11
What Should Be Tested .................................................................................................... 11-11
Setting Test............................................................................................................................... 11-11
Meter Test................................................................................................................................. 11-12
Phase Overcurrent Element Tests ............................................................................................ 11-13
Ground Overcurrent Element Test ........................................................................................... 11-13
Phase Voltage Element Tests ................................................................................................... 11-14
Negative-Sequence Overvoltage Element Test........................................................................ 11-14
Phase Current Unbalance Element Test ................................................................................... 11-15
Phase Overpower Element Test ............................................................................................... 11-15
Differential Voltage Element Tests.......................................................................................... 11-16
Synchronism Checking Element Tests..................................................................................... 11-16
Fault Current Breaker Failure, Scheme 1 Logic Test............................................................... 11-17
Fault Current Breaker Failure, Scheme 2 Logic Test............................................................... 11-19
Fault Current Breaker Failure, Scheme 3 Logic Test............................................................... 11-19
Fault Current Breaker Failure, Scheme 4 Logic Test............................................................... 11-21
Fault Current Breaker Failure, Scheme 5 Logic Test............................................................... 11-22
Load Current Breaker Failure, Scheme 1 Logic Test............................................................... 11-23
Load Current Breaker Failure, Scheme 2 Logic Test............................................................... 11-24
Circuit Breaker Close Resistor Thermal Failure Logic Test.................................................... 11-25
Circuit Breaker Trip Resistor Thermal Failure Logic Test...................................................... 11-26
Voltage Nulling Logic Test...................................................................................................... 11-27
Flashover Detection Logic, Scheme 1 Logic Test ................................................................... 11-29
Flashover Detection Logic, Scheme 2 Logic Test ................................................................... 11-30
Current Unbalance, Failure To Close Logic Test .................................................................... 11-31
Loss-of-Dielectric Logic Test .................................................................................................. 11-32
Staggered Close Logic Test...................................................................................................... 11-33
Point-On-Wave Close Logic Test ............................................................................................ 11-34
Synchronism Close Logic Test................................................................................................. 11-36
Trapped Charge Detection Logic Test ..................................................................................... 11-36
Instantaneous Retrip, Scheme 1 Retrip Logic Test.................................................................. 11-37
Time-Delayed Retrip, Scheme 2 Retrip Logic Test................................................................. 11-37
Lockout Relay Control, Scheme 1 Logic Test ......................................................................... 11-38