Answer / upender

An isolator is an offload and a double pole switch which is used before and after the circuit breaker providing visible contacts to disconnect from the fault line when circuit breaker opens its contact

Answer / jitendra kuril

Isolator usred in switch gurd to isolate bus bar before or after vcb for maintance purpose

Answer / arshit rajapara

isolator is one type of switch which is isolate system at a faulty condition as well as maintenance purpose and it placed before and after cb.

Answer / soundararajan

electrical and electronics equipments production from overloads

Why are tertiary windings used in transformers?

2 Answers  

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can u tell the difference between star-star transformer and delta to delta transformer.

3 Answers   Videocon,

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i have a 1500kVA transformer what is the kWH meter i need to use?

0 Answers   HP, L&T, Mohammed Harasani Architects,

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How silicon gel sucks moisture in the transformer, its have any small exaust fan behind silicon gel.

4 Answers  

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what is transformer

5 Answers   Aegis,

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Why we specify TNC switch with 1NO 1NC ,2NO 2NC ? how we get connection.?

0 Answers  

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What is the effect of using an underrated size cable to supply electrical power to a 3 phase ac electrical motor? What is the effect of using an overrated size cable for the same motor?

1 Answers  

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How I design capacitor bank for different load.7MW connected load.

3 Answers   Samtel,

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I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)

0 Answers  

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what is the working principle of tube light?

2 Answers  

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what will happen when reverse reactive power occurs in alternators?

3 Answers   Reliance,

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In a generator (Synchronous) does the rotor speed (frequency) corresponds to the speed of the water (in hydro). does the torque on the turbine relate to the flow of water?

2 Answers  

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