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HOW TO DO MCB TRIP TEST, HOW TO FIND TRIP TIME FROM CURVE, COLD & HOT STATE, TEST CONNECTION
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00:00 WELCOME
00:03 PRINCIPLE & PURPOSE OF MCB TEST
00:36 NECESSITY OF MCB TRIP TEST
01:15 MCCB TRIP MECHANISM
01:53 TEST KIT USED
04:21 TEST PROCEDURE
05:34 TEST CONNECTION
07:07 ACTUAL MCB TEST CONNECTION
07:56 TRIP TIME FROM CURVE
09:28 TEST REPORT ANALYZE WITH CURVE
11:20 ACTUAL 4 POLE MCB TEST CONNECTION
12:03 THANK YOU
1. AS FAULT CURRENT INCREASES TRIPPING TIME OF MCB WILL REDUCE
2. WHEN TESTING MCB OR MCCB, INJECTING CURRENT INCREASES TRIPPING TIME OF MCB WILL GET REDUCED
3. WHEN FAULT CURRENT INCREASES, MCB CHARACTERISTICS WILL BEHAVES LIKE IDMT
00:03 PRINCIPLE & PURPOSE OF MCB TEST
00:36 NECESSITY OF MCB TRIP TEST
01:15 MCCB TRIP MECHANISM
01:53 TEST KIT USED
04:21 TEST PROCEDURE
05:34 TEST CONNECTION
07:07 ACTUAL MCB TEST CONNECTION
07:56 TRIP TIME FROM CURVE
09:28 TEST REPORT ANALYZE WITH CURVE
11:20 ACTUAL 4 POLE MCB TEST CONNECTION
12:03 THANK YOU
1. AS FAULT CURRENT INCREASES TRIPPING TIME OF MCB WILL REDUCE
2. WHEN TESTING MCB OR MCCB, INJECTING CURRENT INCREASES TRIPPING TIME OF MCB WILL GET REDUCED
3. WHEN FAULT CURRENT INCREASES, MCB CHARACTERISTICS WILL BEHAVES LIKE IDMT
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