Answer / prem

Earthed.because core leakage current is tan delta point so earthed

Comparing to AC transmission, corona & R in DC transmission is……. a) lower b) higher c) same

3 Answers  

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how to improve IR value in HT motors?

3 Answers   ABB, AMW, Macleods,

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Difference between online and offline UPS?

11 Answers  

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WHAT HAPPEN WHEN A DROP OF WATER MIXED UP WITH TRANSFORMER OIL ?

4 Answers  

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what is full wave bridge?

4 Answers  

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what is slip ring startor

1 Answers  

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what is the function of commutator in dc motor?

3 Answers  

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Difference Between Differential Relay and Restricted Earth Fault Relay of Power Transformers

1 Answers   KSEB,

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I have a 3 phase 600 volt prim. feed and a 120/208 sec. Isolateing tranformer .We are using this system for safety against shock . What is the proper grounding ?? Does the common on sec. get earth ground ???

1 Answers  

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the parts of transformers ?

1 Answers   Bhel, Facility management,

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In HT overhead line why should provide top conducter which is not connected whith insulater..?

3 Answers   Essar,

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If a 1.5V,3W torch light bulb is connected in series with a 15HP/11.19KW,230V single phase motor and the combination is connected against a 230V supply and switched on than what will happen keeping all other parameters as it should be A)the bulb will glow normally B)the bulb will not glow C)the bulb will glow with extra brightness D)the bulb will burn out and if a fuse is connected to the above circuit will something happen to the fuse and what about the single phase motor will it be affected? Please explain with derivation

4 Answers  

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