Name different types of fault and which instrument is used to measures earth,short,open cicuit fault?

6 Answers   NTPC, Vijai Electricals,

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how many type of of electrical fuse please explan?

9 Answers  

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The knee point of a current transformer is normally unique and known.So why in the nameplate of a CT they put the minimum value like this Vk> 400v.

0 Answers  

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Hello friends, Can anyone explain the concept of zones in Bus bar protection and how can we differentiate the main zone and check zone in Bus bar protection

1 Answers   ABB, NCC,

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why CERAMIC material is used in insulators??

1 Answers  

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what do you mean by switchgears?

5 Answers   Practical Viva Questions,

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what is the difference b/w winding insulation class and winding temperature class?

6 Answers   Bhel, NDPL, NTPC,

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What is the use of IGBT in UPS & its working??????????

5 Answers   Reliance,

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in india,we use 230V,50 Hz,whereas many other countries use 110V,60Hz.what r d advs and disadvantages of each of them?

11 Answers  

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What is meant by transformer, why it should be used, with out that equipment what happens if we transformed the supply?

12 Answers   Bhel,

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how can we represne the analog signal and digital signal if want to measure the speed and we have to use PLC

2 Answers  

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what is the potential difference between line and earth?

11 Answers  

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