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why do we use LPF wattmeter not UPF in the experiment of no load and blocked rotor test of 3phase slipring induction motor?
3 20331what are the safety in transformer,diesel generator,ups, chiller plant,h.t. , L.t. , sewage treatment plant(stp),water treatment plant(wtp), fire. plz ans. me in detail if you know any of the mention above. i urgently need
2 4815when the flux enters into saturation mode then what will be the secondary voltage of the normal t/f?....high or low ? explain ...how?
1 2831we are having 15kw and 3kw motor both can run in same time , instead of using copper we are using ug aluminium cable , 35 sq.mm is suitable for its current carrying capacity..?
1733Sir, Please tell me that how I will calculate the efficiency of rectifier. Because input is ac and output is dc. Is it right to put two unlike signal together.
2 3062Why we are always only used 11 kv. , 22 kv ,33kv in transmission line? Why not use 25, 55 ,65 kv ?
3 5430What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?
1904what is B , c & d curves in MCB characteristics i e Full Form of B , C & D . sir please give me answer
NCC,
1 3706Post New Electrical Engineering Questions
how to find the multiplication factor for digital energy meter and analog energy meter
how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?
i want to know how to determine that a surge arrester work properly in 11kv system. and how to test a 12kv surge arrester
what is V.L.F. testing of power cable? do you know the voltage ratings, like for what rating and size of cable what rating of V.L.F. testing is used?
why we dont prefer ac voltage controller instead dimmerstat [if both have same rating] for conducting experiments in laboratories?
how to failure indution motor insulation & how to improve heat in motor insulation
what's the simultenous maximum demand (SMD)..what the diffrent MD and SMD?
whate is the meaning of balance/unbalance,in stabilizers type
why does connected a indutor with mnsformeretering core of current transformer ?
I need a formula to calculate the size of cable as per load but in the terms of length. Please Reply me as i search lot of sites but i did not get the answer.
Leakage current,un balance current which relay using for high voltage transmission?
why the active power flow of some line is increased when the active power of out is cut ?
Write masons gain formula.
Draw the equivalent circuit of crystal oscillator?
What are the types of control system?
