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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 20176what 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 4715when the flux enters into saturation mode then what will be the secondary voltage of the normal t/f?....high or low ? explain ...how?
1 2750we 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..?
1690Sir, 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 2956Why we are always only used 11 kv. , 22 kv ,33kv in transmission line? Why not use 25, 55 ,65 kv ?
3 5301What 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?
1855what is B , c & d curves in MCB characteristics i e Full Form of B , C & D . sir please give me answer
NCC,
1 3631Post New Electrical Engineering Questions
We are preparing another project which involves Waste heat recovery from a 1 MW GE Engine. The Engine in particular gives out flue gas at 487Deg C with a flow rate of 5650 kg/hour and this can be cooled to 180 Deg C. This gives a thermal output of ~ 594 KW that is available for input to VAM via heat exchanger / boiler. Additionally 581 KW will be available from engine jacket water (temperature profile 80/ 80 Deg C and a flow rate of 50m3/hr) Our estimation is that 300 TR of cooling is possible with a suitable VAM machine(s). Please advise what is the most suitable arrangement with maximum TR and min Capital expenditure. plz reply me as early as possible
what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks
what is quality factor in series resonance circuit and calculate the factor of voltage magnification? how it happens?
How the frame size of a flange mounted AC induction motor is calculated?
Dears we deal in Chemical are Plate earthing. Kindly call if any requirement and questions. Tech Earth Solutions Mohit Verma 8791071007
What are the advantages of instrument transformer?
i am completed diploma in ece,and working in ht and lt lines.so is elligible diploma in ece for get electrical C Licence?plse give ur opinion?
Explain mechanical rotational system?
Define pole pitch?
IN dc capacitive reactance is??
Explain in brief description about the operation of DG sets.
iam working in power plant. In hot places tube lights are glowing at the end portion only. what is the reason for that?
how to find the torque of the single phase synchronous motor by doing an experiment
hi everybody how to design string combiner box (scb) internal parameters like bus bar and spd (surge protection device and fuse which place to set that,and also bus bar one particular cross sectional how much heat generated and how much power loss tell me Clearly and briefly
anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?
