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Determine the minimum cable size for a 28A single phase final sub circuit originating from the distribution board supplied by three phase submain. The route length of the final sub circuit is 54 m. Assume 1% voltage drop in the consumer's mains. Submain specification: Cable: 50mm2 4 core V75 copper; Route length 42m; Maximum demand 135A per phase
1 5535what is difference between 2wire method and 4wire method of winding resistance testing of transformer?
1 3750What will happen if " not connecting the neutral point to ground of diesel generator output (380 V)", also if someone touched one phase without isolation from ground during the A/M condition what will happen to him?
3 6967sigal phase supply is 230 v ac two phase supply is 415 v ac why three phase supply is 415 v ac why not 690 v ac
4 9382Before i went to bed my master bathroom lights were working fine. At 2 am, when I went to use the lights, none of them were working. The outlets throughout the bathroom work, but the lights and fan above the toilet don't. I have two panels of switches. The one panel has four switches. One of the switches turns on the hall light, and that works. The other three are to other lights, and they don't. The other panel has three switches. One of those is to the fan, and the other is to a light above the toilet. The other is a to light that is also on that other panel. I tried the breakers, and the one that turns off the outlets, marked for the bathrooom, turns on and off the outlets. None seemed to be tripped. I checked the lightbulbs, and they are fine. Please help
2 5566If there is volagte between earth and neutral, what should be the reason ? and solution * What should be allowable limit in case, if the voltage between earth and neutral exist ? / OR what is limit for safe voltage between earth and neutral?
3 6756Post New Electrical Engineering Questions
Explain Need of a starter in a dc motor.? Also explain any two starting and speed control method of dc motor?
transformer spections :: input voltage 0-110-230v; output volage 0-10-12-14v; amp=3A using CRNO CORE, capcaity=50VA primary turns = ? ; secondry turns =?
whati s the sludge current in ups
how electrical earthing maintenance done in industry?
while doing high potential for 11KV 3 core cable how much leakage current will obtain?, what will be acceptance value?
1 hp is equal to how much watt?
What types of question are done for diploma students in aptitude test
how does the rotating m.m.f is produced in the 3-phase induction motor and how the poles are created in 3-phase induction motor ?
In a synchronous motor. if start is running at high speed. What will be the starting torque : Higher Lower Zero
how does commutator convert a.c to d.c?
EXPLAIN THE TERMS "INTEREST AND DEPRECIATION" AS APPLIED TO ECONOMICS OF POWER GENERATION.
What is dc current source? Differentiate between ideal and non ideal current sources?
what is EIB lighting control system? what is the advantages of this system?
send me any model test paper of clerical post of state bank of india.......
what are the basic insulation levels & what its Unit
