WORKING PRINCIPLE OF VACCUM CKT BREAKER ?

2 Answers  

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how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.

0 Answers   Webel,

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. What is Electrical Life & Mechanical Life of Circuit Breaker? 2. What is Electrial Life & Mechanical Life of Magnetic Contactor? 3. What is RCD, RCCB & RCBO? 4. What is the Between defferance of RCD, RCCB & RCBO?

0 Answers  

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What is derating?, Why it is necessary, it is same for all means for drives, motors,and cables.

1 Answers  

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I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA

1 Answers  

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why transformer donot allow the dc?

17 Answers   ONGC,

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What are the protections for safe running of electric generator?

0 Answers   Hetero,

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what is direct dischage of power transformer

1 Answers  

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neutral carrying current more than phase in 3phase supply.i want to know the reason?

2 Answers  

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Why scr and igbt used in  ups systeam ????

1 Answers   JLL,

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how many joints are allowed in underground HT cable of 1 KM

0 Answers  

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Can Induction motor run at over rated speed? ( 15oo rpm is rated speed for 50HZ. is it possible to ride 3000 RPM with same motor with the help of VVVFD for continues ride of 100HZ)

3 Answers   Equate,

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