Answer / mohammad farman khan-abu dhabi

Primary current injection test require at time of
commissioning to distrubution switchgear.High pot theory.

Answer / brijesh

Primary current injection test require at the time of
commissioning to the current transformer.

The purpose of it is to check the ratio of C.T.

and for checking of C.T. circuit.

The test is conduct by means of primary injection test set.
In test set there is a current transformer and variac.

Answer / arvind negi

Primary current injection test require at circuit
protection equipment throw.

hi friends if you have any 400KV Substation Erection and installations Drgs please send to me.My email id:kandi.suresh441@gmail.com

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hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...

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I have a 3 phase 600 volt prim. feed and a 120/208 sec. Isolateing tranformer .We are using this system for safety against shock . What is the proper grounding ?? Does the common on sec. get earth ground ???

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What is bus-bar?

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Do you know the overhauling of a motor?

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Why tripping not occur when the transmission breaks? Doesn't we provide earthfault protection for it?

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when we change tha taps from 1-16 in 100mva tr whether a constant voltage avaliable till it reaches tap 16 or voltage change as per taps change

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we have an energy meter in a capacitor bank panel, So should we consider it's readings as energy consumption on daily basis. (when capacitor bank doesn't have any energy losses)

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Explain Need of a starter in a dc motor.? Also explain any two starting and speed control method of dc motor?

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Most electrical terms denoted by first letter of its name but Why current is denoted by "I".

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What is formula of capacitor for 1-phase power connection.how to improve PF. Suppose I want to connect capacitor in refrigerator to reduce power consumptions.

0 Answers  

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