Why sip ring used in ac motor also why its not used in dc motor?

2 Answers   RRB,

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1. How many types of mangers? 2.How many types of capacitors? 3.pls tell me normally types alternator problems?

0 Answers   APCPDCL, Voith,

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What is the instrument to check the rotating diode fuse of alternator in running conditions?

0 Answers  

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Can we pass 11kv power in 1.1kV voltage grade cable.If not why?.

3 Answers  

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what is power factor

7 Answers   Eskom,

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What is Automatic interlocking circuit dighram between two contactor for DG SET panel.

1 Answers  

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what is the impedance voltage of transformer?

1 Answers   AVI Enterprises, MacLellan,

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why skin effect is decreases with decrease with frequency? why skin effect occur

5 Answers   Kirloskar,

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Dear Sir/Madam, I have one questions we have three steam turbines and one Gas turbine and our industry linked with the public network, we have protection system one of the protection is reverse power we can export just four MW only i would like to ask about how to calculate the reverse power. Thank you in advance best regards

0 Answers  

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How to know the back up time for a 5KVA UPS which is connected to 15 nos. of computers? Is there any formula for this? pls. tell me.

1 Answers   S V Sugar,

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( Re: WHAT SHOULD BE THE RATING OF MCCB FOR 415V,3Ph,50KVAR CAPACITOR BANK Answer # 1 The capacitor current would be kvar x 1000 / (415 x sqrt3). This would be 70a approx. The MCCB selected should have *atleast 1.4 times this current i.e. 1.4 x 70= 98. So you should choose at least 100 A mccb.) regarding to this answer,i would like to know why the current have to times 1.4 to get the right amphere for the mccb.hows the formula to get the 1.4??tq

2 Answers  

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Can we use HRC Fuse inplace of Semiconductor fuse?

1 Answers  

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