HOW TO CALCULATE THE LOSSES OF CURRENT FOR LT CABLE JOINTING TO MOTOR SUPPLY.

2 Answers  

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in Megger what type of voltage(AC or DC) are produce.how they work.

1 Answers  

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A 3 phase motor operating off 415V system is developing 20Kw at an efficiency of 0.77 and power factor of 0.73. determine:- a)the line current. b)the phase current if winding are delta connected. c)the phase voltage if winding are star connected.

1 Answers  

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use of choke in APFC panels

2 Answers   Kemrock,

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WHEN SINGLE PHASE SUPPLY AS 220V, WHY THE 3 PHASE- 4 WIRE MEASURED AS 440 VOLTS INSTEAD OF 660 VOLTS (220 VOLTS PER PHASE i.e 220x3 = 660 volts ).

1 Answers  

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if earthing is not connected to computers any problem ?

2 Answers   HP,

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How many kw will suply from one db

0 Answers  

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What value(high/low) of diversity factor is desired in power system and why? How such value is achieved?

1 Answers  

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mounting of bucholz relay engle on transformer

4 Answers  

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How to check it good or bad capacitor

4 Answers   IMD, ST,

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when we r using 3.5 cable for a bldg. and put laod on each phase using the neutral and neutral is the return paht for the phase so the current of the neutral must be Ir+Ib+iY (return).But the size of the netural is .5 as comper to the phase.

2 Answers  

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What happen if the 24 volt DC supply is disconnected from air circuit breake ?

2 Answers  

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