Answer / k.prakashchandra

So that air or gas bubbles enter the chamber of the relay or
in other words,to trap the gas

Answer / madhusmita

sir prakashchandra plz give detail of ur ans

Answer / alok singh

Buchholz relay is installed in inclined position because of its function as it is used for internal fault protection inside the transformer as in case of over heating and loading of transformer oil temperature also increases hence oil expands inside the body of transformer so that excessive oil expands during heating or time of fault enters in buchholz relays body and after a particular level relays coil get trips and gives an alarm to the operator regarding the fault.

My system is 22kv/3.3kv transformer. client is asking to use NGR, but as we have dedicated Neutral Earthing systems which has a value less than 1 Ohm. So i want solid comparision. Why i should not use NGR as my system is already protected.Can any one help me to get out of this.how should i reply on basis of some great comparision and calculations. Please help

2 Answers   Ariel,

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why induction motor always operate at lagging p.f.?

4 Answers  

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to operate air conditioner of 1.5ton what power of generator is required

1 Answers   Bharat,

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When one of three series resistors is removed from a circuit and the circuit is reconnected, the current

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over frequency is the protection of turbine or alternator?

2 Answers  

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how we calculate electricity unit ( meter unit.. for knowing how many charges) from on motor load.?

2 Answers  

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As we use capacitor bank in 3ph ckt to improve PF, can we use capacitor in single ph domestric use, in house we have Fan,Mixer,electric cooker,iron,tube choke they also lag the system,because it is inductive load. if it is possible to improve PF of single ph system-- if yes- type of capacitor to be used,connection diagram, working in detail. if no-- list it.

0 Answers  

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Sir, I need a power supply at 380V. The supply I get in three phase is rated 415V. The total supply I have from the supply company is 70KW. Kindly inform if it is better to use a voltage stabiliser for this purpose or a transformer

3 Answers  

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america 60hz electric supply is used; but india it is 50hz; why? and if we use 60 hz supply what changeg has to be done or all the equipment has to be thrown which has rating of 50hz frequincy

1 Answers  

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What does quality factor depend on in resonance?

0 Answers  

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in delta connection, why motor rotate in high speed compared to star connection?

2 Answers  

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Electrical Design specifications

1 Answers   Sabic,

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