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)

define hysteresis loss, eddy current loss and windage loss

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If we have two nodes A and B and Vab is the potential difference between these nodes then which node is called reference node a.node A b.node B c. Ground node

1 Answers  

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whatis the commertial spec. of distribution boards ?

0 Answers   Bosch,

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how do we calculate of transformer in va?what is calculation?

2 Answers  

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how to interlock 2 incomer,1 buscoupler MCCB,like we interlock an ACB... pls answer this question and if possible send me the ckt diagram..

2 Answers  

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what happen ehen synchronisation is done at below rated speed

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why power generated only 11KV not more than???????? and why power up/down is multification of 11*?=??.??? foe Example 11/33,11/66,66/11KV etc,

8 Answers   Essar,

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What is floating earthing?

2 Answers   Equate,

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How would we calculate the no of earthing pits required for motor /panel

5 Answers   APGenco, National Engineering Industries, Practical Viva Questions,

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I need to calculate the Battery bank back up for below configuration:- UPS - 120 KVA Battery Bank - 200Ah Volt of each cell - 12 V Total No of cell - 34 No's Can you please help me to get the battery back up time for above configuration...? along with formula

1 Answers   Wipro,

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why do we connect voltmeter in parallel,why not in series,and why do we connect ammeter in series why not in paprallel...

4 Answers  

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why we decide alternating wave form in ac system and not in dc system

2 Answers   GMR,

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