What is UPS and How do you maintain the UPS Maintenance? Brief Description on UPS maintenance.

0 Answers   JLL, Nokia, Uttam Galva,

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Can u tell me the name of books of transformer testing?

6 Answers  

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Tell me the reason of connecting domestic t/f primary in star or delta,and also secondary side.

0 Answers  

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What are the causes of motor vibration?

3 Answers   Equate,

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What are the Formula of computing Back up Time of 500kVA UPS with 4 Battery Banks, each bank composed of 43 pcs of Batteries 12V150Ah. How to compute the Back up Time of UPS? We have also 3X500kVA UPS running in Parallel same composition as I write above.

0 Answers  

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which of the following motors is non-self starting?

3 Answers   SS Solutions,

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what will happen if the secondary of current transformer kept open....

11 Answers  

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In what situations relays are used in Circuit breaker? In Above what rating of Circuit breaker the relays are used? Why relays are not used for CB like MCB?

0 Answers   Elektrotek,

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How you calculate the repturing capacity of a HRC fuse

0 Answers   CPCL, RSCL,

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If in a 3 phase supply if the load current is 200A what value of current the each phase R,Y & B will carry?

5 Answers  

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advantage of cu cable over al cable

4 Answers   Havells,

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why the stator is not laminated in DC machines?

4 Answers  

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