Answer Posted / jobmonjacob

3 phase needs a neutral for tapping 230V

what is ground fault in ACB?

2104

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Give details on how you intend to handle a challenging position you are posted to manage unexpectedly as a company staff?

3324

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why the India electrical supply transmission loss is high when compare to us

1994

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Merits & Demarits of Oil circuit & Air circuit breakers ?

2085

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PLEASE SEND ME NTPC RELATED INFORMATION LIKE WHICH TOPICS HAV MORE SCOPE,BOOKS TO READ,CUT OFF...PLEASE.mail at thiru.1203@gmail.com

2114

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In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes

812

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what is the principle of the single phase energy meter? and,what is the advantages and disadvantages of single phase energy meter?

4568

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which phase is preferred for connecting 1 phase vt used for synchronizing OHL? WHY?

2054

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If 22 KV HT line, Current transformer is 25/5 then how to calculate multiplying factor.

1101

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Good morning: I'm looking for some informations about the OLTC or the LTC: I wont to know what the function of the tie-resistor in during the operation of reversing/coarse operation Cordially

2018

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what is the basic need of domestic loads 1- voltage 2- current

2121

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please send me previous year questions of jspl through which i could prepare myself for the test.

1886

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I Need standard operation procedure(SOP)for 500kva Oil type transformer oil filtration & Procedure for IR value checking.

2902

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State the methods of improving power factor?

1162

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What must be the distance between the Earth pit which are grounded from two different sources. Example: Distance between the earth pit for LV Panel-1 & 2

2088

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