TDR9000
™
Circuit Breaker Test System User’s Guide
72A-1898 Rev. A 11/01 4-69
Monday, November 26, 2001 1:09 pm
Running Tests
This section explains the procedures involved in running tests and saving
Test Results to disk. These include:
• Removing Safety Grounds
• Using the Pretest Checklist
• Running the Continuity Test
• Running Other tests
• Saving Test Results for importation to the back office server
running TRX
• Disconnecting after the test is complete
Removing Safety Grounds
Before the test can be run, ground connections must be removed from
either side of the circuit breaker. Certain electrical/physical conditions,
however, may dictate which safety grounds can safely be removed. Refer
to the warning below.
WARNING If the circuit breaker is closely connected to a transformer (there is
no disconnect switch between the transformer and the circuit breaker)
whose neutral is grounded, the safety grounds that remain must be the
ones between the transformer and the circuit breaker.
If there is high voltage between one side of the circuit breaker and the
closest isolating disconnect switch, the safety grounds that remain must
be on the long section of the high-voltage bus.
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