What is the difference between online and offline UPS

1 Answers  

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In a 3 phase,400v,4 wire system, 2 incandescent lamps, one having 230v,100w and the other 230v,200w are connected between r phase- neutral and y phase-neutral respectively. If neutral wire breaks which lamp will fuse first and why?

3 Answers   Eskom, SSC,

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can we use ELCB and RCBO in one db

6 Answers  

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what is the instrument used for measuring insulator RESISTANCE

5 Answers   TATA, Transco,

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why we usually call 415 volts instead of 440 volts

3 Answers   S Tech,

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wat is the role of reactive power in power generation?why we have maintain it.

3 Answers  

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A 400KVA ,50HZ TRANSFORMER IS TO BE OPERATED AT 50HZ.THEN KVA RATING OF THE TRANSFORMER?.

4 Answers   GATE,

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How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?

0 Answers  

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different types of electrical cable?

1 Answers   Green Power,

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How to calculate KW what is the formula for KW.

18 Answers   Toyota, UU,

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BSNL TTA EXAM QUESTION

0 Answers   BSNL,

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what is the meaning and full form of AYFY CABLE?

10 Answers   ABB, Cable Wireless, Ecom Associates, Tamboli Engineers,

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