Answer / leon

MCB - Miniature Circuit Breaker. Used to break circuits.(In DB)
MCC - Motor Control Center. Used for motor starting equipment. (ususally in factories)
Isolator. Breaks the whole line including neutral(use at geyser)

why we need to us lenz's law for synchornous motor

0 Answers   Tata Elxsi,

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why the check zone and main zone are used for Busbar Protn. scheem?

0 Answers  

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How to calculate pitch, gauge of winding wire, and No. of turns for 30HP, 3 phase, 4 poles 50Hz, 380V induction motors

0 Answers  

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what is transformer tap change HT side and LT side

1 Answers   Alstom, Sodexo,

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What is meaning of DRU in gen.of AVR.

2 Answers  

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A 6.6 KV motor breaker is try to Drack OUT by me while the motor running. What will Happened? a, will Trip. b,Drack Out lever will not access c, will get shock d, noting will happened

4 Answers  

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how to choose cable size with respect to load? how to convert cable size in mm2 to sq.mm?

2 Answers   MSL,

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what happens if power factor is maintained at 0.9?give me the answer in technicall way rather than telling the penality n all

5 Answers   NCC,

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Which is the best between SCADA & PLCC & Why ?

2 Answers   ABC,

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Is vtg is controlled by the resistor? if else how much?

0 Answers   Sail,

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whatis knee point ?

5 Answers   L&T, Siemens,

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why transformer donot allow the dc?

17 Answers   ONGC,

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