how to measure the current by compact digital equipment
with dislay which fit inside any equipment
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How to calculate ht side cable of 630 kva oil cooled outdoor transformer?
time constant of RC series circuit?
what is principle of DC machines?
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what is the meaning of DSL
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WHAT CAUSED THRESHOLD VOLTAGE TO EXIST?
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what are factors to be consider to design a HT & LT motor?
how many testing use in power transformer?tell equipment names?
WE are using a 63A MCCB(SIEMENS MAKE) for one of the feeder in LV substation panel.It is supplying to a lighting & power socket DB.Settings in the MCCB is Ir = 63 * 1 , Isd = 8 times of Ir , tsd = 0.5 sec( I2 t off). Sometimes this MCCB is tripping .But no trip in DB MCB. Can anybody tell me reason ? From where i can know about the MCCB settings?
why earth hole size is biggest in plug point?