Answer / ashish

a breaker has a fixed and moving contacts.
after closing of the breaker the resistance between
this contact is called breaker contact resistance and its
value is in few micro/milli ohms.

Answer / hiranmoy chatterjee

Contact resistance of SF6 CB will be less than 40 micro ohm.

A electrical meter has load 500 kw. In 2 hr what rading will come on meter.

2 Answers  

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all types of electrical quations

1 Answers  

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why current flows from +ve to -ve terminal

7 Answers  

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If I want to use capacitor banks at HT (11 KV) side for maintaining power factor then which type of capacitor should I use? Plz give me the specification?? (I am using 1250 Kva transformer (11 KV/433V)).

2 Answers  

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How energy is generated in hydroelectric power plant?

0 Answers  

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what is closing resistor in circuit breaker? why it used?

3 Answers  

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1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?

0 Answers  

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Is it required to use 2 nos of body earthings to any machine though if we use TP with E supply is provided to Machine?

2 Answers   HAL,

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Which type of drive is advantageous AC or DC and why?

5 Answers  

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why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?

0 Answers   MSETCL Maharashtra State Electricity Transmission Co Ltd,

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why most of the induction are delta connected?

6 Answers  

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what is the voltage regulation for unity and zero power factor?

0 Answers  

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