On a 10 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 65 AH). What Shall be the current rating of DC MCB ?

6 Answers   RR, TNEB Tamil Nadu Electricity Board,

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Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above

0 Answers  

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Dear Brother can u tell the proper size selection of cable & the fault level calculation of braker, busbar etc. pls mail me at azeemk30@gmail.com

0 Answers  

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Is it necessary to seperate the DG earth grid with Electricity Board earth grid for protecting the DG set. if yes why?

2 Answers   BARC,

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The insulation resistance of a cable can be measured by

3 Answers  

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Abb 11kv how it is closing automatically when the cb is racking in and rack out when it reaching test position

1 Answers  

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Why in ESP Positive earthed

0 Answers   Sonhira,

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Why Utility Distribution System in India is mainly at 11 kV? Why not Utility go for 33 kV?

0 Answers  

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if 12v battery get discharged for 2 months after if we put charge it will charge again?how much time it will take to charge?

0 Answers  

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WHY HOLDING CONTACTOR OF MOTOR STARTER IS CALLED NO VOLT COIL.

3 Answers  

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If the damper winding on the rotor of a synchronous motor is removed after starting what will happen?

7 Answers   IOCL,

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what is the function of compressor?

2 Answers  

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