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PORTABLE ELCB TESTING KIT CES - ELECTRICAL HAZIRA

PORTABLE ELCB TESTING KIT COMPONENTS » Socket for mA meter. » Socket for PHASE wire & EARTH wire. » Selector switch for leakage current selection » MCB for power ON & OFF. » Pot for getting variable mA.

ELCB TESTING KIT INTERNAL

EXTERNAL CONNECTION » Insert mA meter for leakage current measurement. » Insert probe with crocodile pin for Phase connection. » Insert probe with crocodile pin for Earth connection.

CONNECTION DIAGRAM Y Phase

EARTH BUS

R Phase

Out going ckts

Out going ckts

B Phase

Out going ckts

R

O O m A

m A Meter

O P

O E

ELCB TEST KIT

Y

B

N

NEUTRAL BUS

ELCB

O O O O O O O O O O O O O O

O O O O O O O O O O O O O

ELCB TESTING AT FIELD » For doing connection put the ELCB & all out going MCB’s “OFF”. » Connect Phase wire to “R” phase which is out going from ELCB. » Connect earth wire to the earth bus bar. » Put ELCB “ON”. Cont…..

ELCB TESTING AT FIELD » Put The MCB of ELCB testing kit “ON”. » Increase mA slowly till ELCB gets tripped. » Note down the tripping value. » Repeat above procedure for each pole of the ELCB.