Answer Posted / abhishek singh

capacitor ckts are present in invertours which converts dc
to ac current because capacitor does not passes dc
current.but all dc current are not able to filtered
through inverter some remains present in the current which
causes a sound in fan.

sir please send me previous year questions of jspl of electrical section through which i could prepare myself fpr the test.

1963

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How can eliminate noise problem inside temperature controller temp. variation due to contactor chattering problem.

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while doing high potential for 11KV 3 core cable how much leakage current will obtain?, what will be acceptance value?

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witch pump used in wtp

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where solid grounding and where grounding through ngr done and why?

2643

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what is the chemical name and formula of refrigarent R-134a.

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condition Autotrip facia come on control panel of electrical transmission line?

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earth also having a gravitational force (magnetic field of north and south)but it attracts any object compare to this theartifical magnetic cant perform same as earth why?

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if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer

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Hi Everyone ! My Name is Hakim ullah khan please i need formula of Cable Rating because i want to calculate by self without check any Table Chart... Thank you.....

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What is limitedly stable system?

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what are the problems that generally occur in power flows??

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how many parameters can integrate with fire alarm basically ?

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What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?

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is there any phase difference occurs while primary and secondary side mutual induction occurs?

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