Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units | |
Section | Rev. 01, 07/2012 |
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ENGLISH
Trip Unit Installation Check
Secondary Injection Testing
Primary Injection Testing
Check Accessory Operation
Trip Unit Setup
Circuit Breaker Reconnection
Field installation of a trip unit requires secondary injection testing with the
1.Make sure the circuit breaker is isolated from all upstream and downstream devices.
2.Perform secondary injection testing as outlined in the instruction bulletin shipped with the test kit. Verify that all applicable trip unit functions are operating properly.
3.Repeat step 2 with the circuit breaker in the open position.
NOTE: The test kit states that the circuit breaker should be closed when performing the test. Do not close the circuit breaker for this step.
4.If any test fails, do not put the circuit breaker into service and contact the local sales office for factory authorization service.
Primary injection testing is recommended to ensure that all trip system connections have been correctly made. Perform primary injection testing per the instructions in the Field Testing and Maintenance Guide, bulletin number 0600IB1201.
1.Installed accessories – Validate the proper operation of all installed accessories. See the corresponding accessory instruction bulletins for operational testing procedures.
2.Zone selective interlocking – If the circuit breaker is part of a ZSI system, follow the zone selective interlocking test procedures as outlined in the Full Function Test Kit instruction bulletin.
3.Communications – If communication modules exist, validate circuit breaker has
1.If an auxiliary power supply is being used for the Micrologic trip unit, reconnect the auxiliary power supply.
2.Reset the trip unit switches to original values, as recorded at the beginning of this section.
Reconnect circuit breaker as directed in the circuit breaker instruction bulletin shipped with the circuit breaker.
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