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to vary valtage from 0 - max a variac is necessary . so how to design for high power applications nearly about 200KW power
2129How you calculating the current for a 2.5 Sqmm cable. A 30 Hp 3 phase AC motor of power what size of cable is used for this motor.
7 24772What happens with squirrel induction machines if the ends of rotor conductors are kept open? Explain
5 7697How we can change the direction of rotation of Induction motor? Prove it using graphical methods.
4 7377Post New Electrical Engineering Questions
How to convert 2 phase to 3 phase electricpower in induction moter?
what is meaning of bus riser
i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?
What type of pipe material G.I or M.S is used for sprinkler system?
Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...
What do you mean by dependent and independent voltage sources?
Why transformer used in UPS??
What happens if the Capacitive Voltage Transformer Primary neutral is not earthed. There is a CVT between Transformer and source, and the CVT neutral of the transformer is not earthed, does it effect the transformer while charging or does it effect the transformer charging process.
What are the types of windings according to the construction?
Can anybody tell abt concrete encased earthing or grounding?
Define unilateral circuit?
what is the meaning of impedance protected in instrument cooling fan
Has someone here done a sizing for a generator (3 phase), its for a pumping station. If you have an example for standby/duty and both running (I) star delta (ii) Soft Starter.
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,
Could the power factor on electrical system can affect the registration of the kwhr meter or the CT/PT?
