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What are the minimum acceptable insulation resistances of insulation of underground cable suitable for 0.440kV,11kV, 33kV and 66kV?
2 6548Dear friends, i would like to know that what is the exact function of 'exciter winding' & 'aux winding' in Alternator?
NTPC,
2009how to calculate overall efficiency of diesel generator set? give us a formula with an example.
2 9402To prove the capacity of a 10MVA transforemr with 6.5% impedance by a short circuit test how much power is needed to inject an impedance voltage if we have to arrive for its rated current?
1922why ct's&pt'S out put called as burden,why compelsary short ckt the secondary of ct's while removing the burden?
2267what is the power factor used by the PHCN in nigeria? 2. what is the difference between an alternator and generator. 3. Generation of poweris in KV but how is transmission is in MW. 4.If the transmission of power is 20,000MW how can it be increaesed to 80,000MW
8617What happens to an electric motor if it has poor or no ventilation. Will it burn out? If it will, how long it will run before it burn out?
GMC,
5 8105Post New Electrical Engineering Questions
Dear friends, i would like to know that what is the exact function of 'exciter winding' & 'aux winding' in Alternator?
What are the Formula of computing Back up Time of 500kVA UPS with 4 Battery Banks, each bank composed of 43 pcs of Batteries 12V150Ah. How to compute the Back up Time of UPS? We have also 3X500kVA UPS running in Parallel same composition as I write above.
give me applications of sequence bridges . (used in 3 phase un balanced systems)
what is maxemo work permit procedure
why h parameter are called as hybrid parameter?
what is level 2 automation?
is that a problem if i connect a single phase load to a secondry delta connected transformer but i get a neutral from other transformer i the system?
what is the role of energy meter in distribution system ?
Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega
How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?
What is transient Phenomenon?
What is the difference between shortcircuit current, rated current of cable & MCB with example? What will be the size of cable required for 5.5 KW motor (Full load current 10 Amps approx.), Starting current with DOL is 120 Amps. Aprrox. Short circuit current with LLLG fault is 2000 Amps Approx.
Explain the advantages and disadvantages of thermal power plant?
How can eliminate noise problem inside temperature controller temp. variation due to contactor chattering problem.
12.5 tons a/c is their how much kva generator can recommend to the customer.
