Answer / abhishek

OHB circuit-breakers are gas insulated circuit-breakers for outdoor installation. They are used in power distribution for controlling and protecting lines, substations, transformers, rectifier units, capacitor banks, etc. Thanks to the autopuffer breaking technique, they do not generate operating overvoltages. This means they are also highly suitable for retrofitting, where the plant insulating materials may be sensitive to dielectric stresses.

700KW 6.6KV slip ring induction motor to use VFD to control the speed

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why the transformer neutral earthing is to be done by copper flat only,if we use GI flat what is the disadvantage.

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what do you mean by power factor ? in new view

3 Answers   BDL,

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what will be happened when a single phase motor is supplied by the dc supply

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Hello sir This is prakash from bangalore i have a doubt why we have to maintain DG power factor in the range 0.78 to 0.8 Perhaps i f it is increased means what will happen in DG

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is it possible to run the any motor when winding grounded? how?

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difference between substation & grid substation?

2 Answers   GMR,

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What is the technical formula to calculate the load taken by a motor in Amperes ?

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CONSIDER A 415V/200V STEP DOWN TRANSFORMER.CAN WE USE USE IT AS STEP UP TRANSFORMER BY GIVING 200V IN SECONDARY AND TAKING OUTPUT FROM PRIMARY?

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