Vanguard CT-6500 S2 - Manual (Page 56)

CT-6500 Series 2 Operating Instructions
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9.13 Slow-Close Test
The CT-6500 offers a unique feature called a "Slow-Close" test. The test permits users to
measure 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 channel 1, 2, 3 and transducer channel 1 will be used for “Slow-Close” testing. The
CT-6500 will measure the contact touch and contact wipe for each contact channel.
Contact touch is the distance measured from the contact 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.
Table 18.0 Performing a Slow-Close Test
STEP OPERATION ACTION DISPLAY
1 SELECT DIAGNOSTIC MENU. PRESS # 4 KEY. 1. SLOW CLOSE TEST
2. CHECK HOOKUP
3. TEST TRANSDUCER
4. NEXT PAGE
2 SELECT SLOW CLOSE TEST. PRESS # 1 KEY. BREAKER SLOW CLOSE TEST
RMV CB GND (1 SIDE)
"ENTER" TO BEGIN
3 START SLOW CLOSE TEST. PRESS THE "ENTER"
KEY.
CONTACT 1:OPEN
CONTACT 2:OPEN
CONTACT 3:OPEN
LIFT TO CLS BREAKER NOW
4 CONTINUE TO CLOSE BREAKER. NO ACTION. LIFT BRKR TO CLS POS
THEN PRESS "ENTER"
TO FIND CONTACT WIPE
5 RETURN TO MAIN MENU. NO ACTION. 1.RUN TEST 06/10/07
2.GET RESULTS 20:10:01
3.SETUP
4.DIAGNOSTIC
NOTE
The user can also save a Slow-Close test report in the EEPROM. A typical report of
a Slow-Close test is shown on in Figure 18.0.