Answer Posted / rajesh dhankar

CT class is the class of accuracy of instrument standardised
by indian standard (ISO).
For example if a CT out put is of 5 ampere if it gives out
put between 4.5 to 5.5 ampere than it is with in limit but
if it increase than it is out of limit and needs to be
replaced making electrical department loss of lakh per year.

what is difference between window type and wound type transformers?where we will use window type and wound type transformers?

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Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

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1.how many earth pits are required for 1000 k.w plant include substion , transformer ? 2. how many earth pits are required for 500kva generator.what is formula to calcute?

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Usually in the L & T make MCC feeders' power circuit,we have BMR after the MAIN CONTACTOR.,can we interchange their position, keeping the control logic same???

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If we want to change a contactor of faulty one what are the conditions want to fullfil

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Please explain the following and how these are working with PLC unit 1.I/O Module 2.I/O Device 3.Adaptor Card 4.Ribbon Adaptor 5.RS 485-FC

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dear sir/madam i want to get some knowledge about RRB EXAMINATION(section engineer) 1- what is minimum cut off 2- wht portion is major portion . 3- can any body provide Sample paper. thanks & regards ashish

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i need the details about bhel exam.how to apply for that.please send to my email-id.thenmozhi2k7@gmail.com

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what the Microsoft .NET framework is?

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how r charge carriers produced

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what is tri state logic gate

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for opening electrical shop, tips needed.

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How can we find out LT UG cable fault (size,from-4*25mm sqr to 4*300mm sqr)? How mani types UG cable faults?

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How to calculate Grid rotor resistance(GRR) losses in slip ring induction motor?

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whati s the sludge current in ups

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