what is difference between mccb,mcb,elcb,pccb

7 Answers  

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PLEASE INFORM ABOUT THE IDEAL TEST RESULTS OF MAGNETIC BALANCE TEST OF TRANSFORMER 33/11 kv DELTA-STAR T/F

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We have a couple of oil tanks at our plant. One of them does not have a lightning arrester installed. My question is it necessary to install an arrestor on every tank or will this particular one be covered by the arrestor installed on the ajdacent tank, Since all the tanks are close to each other. Basically, I want to know that if these arrestors or protection works in a parituclar area of effect or influence. Thanks

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Can anybody tell abt concrete encased earthing or grounding?

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hi , i have 150 kw loud and we need 50 m cabil,i want to know wich size cabil we use. thanks

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what is meant by auto transformer?

4 Answers   Suzlon,

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how to calculate busbar size? if ex:1000amps i need to calculate busbar size and what size of bar?if any example caculation pls give the formulas.

2 Answers  

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What happens if i apply 500V to 440V rotary Switch ?

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what is doubling factor in making current of a breaker?

0 Answers   BARC,

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Our Alternator nameplate specifies a power factor of 0.8. When the Alternator is on light load, the bus bar voltage rises to 11240 volts, whereas the standard value is 10500 volts. Is it ok to increase the power factor to 0.85 or 0.9. I am afraid because the power factor on the name plate is only 0.8 ?

3 Answers   Escube,

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What is the type of feedback used in an op- amp schmitt trigger?

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Why space heater is required for each verical bus bar chamber? if one space heater is adequate or not for anti condensation?

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