Vanguard CT-7000 - Manual (Page 25)

CT-7000 Operating Instructions
18
9.0 Operating Procedures
The main steps to time a circuit breaker are listed in Figure 9.0.
.
Figure 9.0 CT-7000 Operating Steps
NOTE
To reduce the possibility of damaging the CT-7000 contact channels due to static
discharge in the high voltage substations, it is recommend to ground one side of
the breaker’s bushings.
HOOKUP CT-7000
1. GROUND THE CT-7000 (See NOTE)
2. CONNECT CT-7000 CABLES TO BREAKER
3. INSTALL TRANSDUCER WITH CABLE
APPLY POWER
1. TURN THE CT-7000 ON
2. PERFORM SELF TESTS: HOOK-UP TEST,
CABLE TEST, IF NECESSARY
TIMER BREAKER
1. SELECT THE CT-7000 TEST
2. OPERATE THE BREAKER
GET RESULTS
1. READ OR PRINT THE TABULATED RESULTS
2. PRINT THE GRAPHICAL RESULTS
3. SAVE THE TIMING SHOT