What is the principle of residual protection?

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what factors to needed while selecting a MCB and MCCB

3 Answers  

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what is the difference between dropout fuse and horn gap fuse. how to choose between them

1 Answers  

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10 hp motor ,7.5 kw ,960 rpm, full load current 15.5, delta connection so how much take current no load trial time. any formula please give..... second question :- what is different between brekar control wiring and motor starter control wiring

1 Answers   MSP,

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i am BSEE student, my project study is to synchronize the generator of an hospital, it have a one 313KVA standby-power diesel gen.,and three 100kva transformer.The generator system is operated manually and no ATS or UPS. one more new building is being build so the transformer will be upgrade to a higher vale. 1)how i can connect the new gen. to the old gen. and to the synchronize panel? 2)what is the new gen. to be buy?(rating, etc.) These is my title: To synchronize the generator system of the ____ Hospital. Anyone have a good title? Thanks.

1 Answers  

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what is the effect of vector group while phase sequence of a generator changes,whether the vector group changes or not

0 Answers  

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What is mean by CT Saturate? how do we calculate?

5 Answers   ABC,

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what is stepping motor and where can use in electrical installation.

3 Answers  

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Any link for Electrical objective type questions ?

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What is the meaning of HT Trivector Meter ?

0 Answers   NIIT, Sodexo,

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what are types of encoder

0 Answers  

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Using 11000V/433V,3 ph,50Hz,500 KVA, what is the maximum capacity of motor in KW that can be connected and started at a single moment? Also explain about any calculations and formulas used in deriving the same.

4 Answers  

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