Answer Posted / gayudhivya

hi

Electronics can also be use without power supply by battery but most electricals devices need power supply to operate.

Is RTCC panel needs any control supply.

2059

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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.

1347

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In electrical what is earth(ground)connection, wht is the importance of it, why it is recomended to maitain below 3VAC between Neutral and earthspecially in PLC used machines?

2219

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In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?

1966

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What is capacitance?

1236

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sir pls tell me . our ct specifications are 120/5 ,2 core , 0.2 and 5p10 class , 30va and 30va buden. insted of 30 va i want use 15 va. can i use?

1516

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what is the chemical name and formula of refrigarent R-134a.

2288

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Incoming line 11kv And transformer capacity is 2500kva. Consumption load is 1300A. Then fuse capacity is 11kv line.

1678

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List the advantages of star-delta starter with induction motor?

1017

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what r PID controllers?why they r used?what is there purpose?plz Explain in detail

2075

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In ACS 1000 drive we are using 12 pulse converter,why don't use 3 pulse converter.

2019

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features of hbc fuses

2424

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Actually I have a doubt on neutral and earth.we use Ac power without taking neutral by connecting to earth,but at that time does it affects on efficiency of any electrical components or no? If yes how?

1406

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A 11KV, 1200 A breaker combination fixed in a cubicle for HT motor.Is normally for 11 KV motor fuse is using? if Yes, What range fuse is required?

1963

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What is the de rating factor of cable? What is the importance of the de rating factor in cable selection?

2095

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