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how to get 48 V DC I have ... 1. 12 volt power supply board 2. DC power supply ( max. 30 v) 3. 9 volt batteries ( 2 - not chargeble)
2 4625how long will take to burst/damage for a CT when secondary in open condition? Experienced: During switchgear testing(Primary current injection test) some of the CT are in open condition, but nothing happen's why?
1 3651i am confused about generator. i have generator of 380 KVA that is 304 KW by that formula KW=KVA*0.8... then by this formula I=KW/V*1.732*0.8 the amperes are 528.673. so that is the load which i put on one phase of generator or this is total 3 phase load on Generator.......
3 5494what is sustainable current of any conductors . a bare busbar or pvc cable has different sustainable current .
1785If we know the load for generator in KW then how it will be change to amps and also if we know the load in amps how it will change in KW and what Generator is good for that...suppose load is 500 amps 3phase......??
1 3388what is the generator rating for 40 amp load of 3phase motor.?? 400v voltage of generator... plz tell me with formula its urgent...plzzz... and also tell me that this 40 amp at all phases mean 40 amp on red,40 amp on yellow,40 amp on blue...... or the total sum of that 3phase is 40 amp....
7 9231Post New Electrical Engineering Questions
How to calculate flow of water delivered by pump when pressure & size of pipe line is given
234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,
What are the advantages and disadvantages of the ac motors?
how to calculate slip ring induction motor stator and rotor currents??
Why does curving the pole faces in a dc machine contributes to a smoother dc output voltage from it?
why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?
sir i completed apprentice in TNEB.apprentice is eligible for 'c' licence
Is it advantages of having star-delta vfd than normal star vfd , if yes why?
Pl.brief me about Electrical power distribution system from Main generating station to Industry.What is the use of in between station.
What is the role of feedback in a closed loop control system?
working principle of AC Servo Motor with its construction
What is the resistance of the field winding of a d.c. Shunt generator kept low?
what are the reasons of CT circuit faulty in busbar protection scheme?
What is ramp signal?
What will happened if the neutral of secondary of Xformer ( Star point) Note it's above KVA rated Xformer
