Answer / iamdon

Peterson coil is a highly inductive coil.

It is used as a ground fault neutralizer in RESONANCE
GROUNDING in case of fault/unbalance.

Author:arbelectbit@yahoo.com

Answer / sunil

Peterson coils are used to in ungrounded 3-phase grounding systems to limit the arcing currents during ground faults. The coil was first developed by W. Petersen in 1916.

in pf lagging means current decrease by increasing voltage is correct or not ? reason ?

3 Answers  

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10Hp, 3-phase, 415v, 50Hz induction motor. The above motor is to run on Star-Delta connection, so how do i make following hardware selection 1) MCB, 2) Contactor, 3) Wire Gage (Depending on P-P current or Line Current), 4) OLR, Please tell in detail how to do the above, so as to get the ans. of it even if the Hp rating changes.

1 Answers   Engro,

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If a air condition consume 2.50 to 3.00 amp then how much it will consume in watts if it is running 10 hours out of 24 hours????

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What is the equipment used to control the generator output?

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What are stable systems?

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what is the voltage between the earth & neutral 2 is there any continuity TO BE between earth & NEUTRAL

3 Answers   Suzuki,

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what are the tests comes under the type test, what tests comes under routine tests.

0 Answers  

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Can we use Ccapacitive voltage transformer directly for metering purpose?

0 Answers  

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what is LT & HT?

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What is the use of insulation tester and how it is to be used.

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We wish to test 60 Hz systems from a 50 Hz supply. To acheive frequency conversion, we use a VFD. The VFD powers 40 kVA transformer, which has motor and non-motor loads on it. Will the transformer work?

2 Answers   Suzlon,

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