Answer / engr muhammad yuonis

To isolate main(WAPDA) supply to DG set supply.

UPS battery Back time = no.of Batteries * Ah of the Battery / output KVA * 130 ? what is the 130 means ? can any one help? because all are using this formula how its came 130?

2 Answers  

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How to select the cable and voltage drop in circuit?

0 Answers   DEWA,

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Is the force acting between two parallel conductors of infinte length carrying AC of frequency 50Hz remians constant with respect of time? If not then what would be the frequency of the force acting?

1 Answers  

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what is induction furnance? how many phase supply given io its coil for 15 or 20 ton furnance?

1 Answers   Bhel,

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how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???

0 Answers  

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I FINISHED MY B.TECH IN EEE . I AM IN NEED OF A GOOD TRAINING INSTITUTE TO DO COURSES .. CAN ANYONE SUGGEST GOOD CENTRES IN TAMILNADU ,BANGALORE ,OTHER AREAS???????

0 Answers  

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what is the setting of locked rotor in HT motor ? (answer expecting in percentage)

0 Answers  

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How to calculate percentage impedance of a power transformer.

1 Answers  

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What is the Difference between Power Swing and Out of Step?

1 Answers  

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what is high and low cut off voltage of BB and DG at SPS????????

0 Answers  

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why should a transformer be never connected to dc supply

5 Answers  

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IF we have 500kva transformer & know the current on HT & LT side, how can we consider for its breaker?

5 Answers  

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