Vanguard CT-7000 S3 - Manual (Page 114)

CT-7000 S3 USER’S MANUAL REV 1
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4.0 DIAGNOSTICS, VERIFICATION, AND TROUBLESHOOTING
4.1 Performing a Slow-Close Test
The CT-7000 S3 offers a unique “Slow-Close” test feature. This test measures the distance a
breaker’s contact travels from the fully opened position to the point of contact or “touch”
position, and the contact wipe or penetration distance. The test requires the operator to
manually jack the breaker’s contact from the fully open position to the fully closed position.
Contact channels 1, 2, and 3 and transducer channel 1 are used for “Slow-Close” testing. The
CT-7000 S3 measures the contact touch and contact wipe for each contact channel. Contact
touch is the distance measured from the contact being fully open to the first position where the
contact channel is electrically closed. Contact wipe, or penetration, is the distance measured
from the contact’s first electrically closed position to the final closed, latching position.
Follow the steps below to perform a “Slow-Close” test:
a. Start from the “START-UP” menu:
Press the [5] key (DIAGNOSTICS).
b. The following screen will be displayed:
Press the
[1]
key (SLOW CLOSE TEST).
c. The following screen will be displayed:
Press the [ENTER] key to begin the test.
BRKR SLOW CLOSE TEST
RMV CB GND (1 SIDE)
"ENTER" TO BEGIN
1. SLOW CLOSE TEST
2. CHECK HOOKUP
3. TEST TRANSDUCER
4. PRINT DATA
5. ENCODER FILTER
6. CONTACT FILTER
1. TIME BREAKER 09/19/13
2. GET RESULTS 10:10:10
3. SAVE/RESTORE
4. SETUP
5. DIAGNOSTICS