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how we calculate the motor rating of pump for water suction ?its any formula for that plz give thank u
3 8388State uses of different types of stsrters with different capacities of motors as below: a. up to 5HP b. above 5hp to 10hp c. above 10hp to 20hp d. above 20hp
2083What is power factor? How to improve Power factor? draw a circuit diagram showing the connection of power factor improvement equipment to the electrical instillation.
1 3066A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram
2816-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.
2132-How do you select cable size for a given load at a given distance from source of supply. How do you find voltage drop.
1796-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.
2100Post New Electrical Engineering Questions
What do you mean by a current transformer?
what r substations?what r there work?why voltages r incresed and then reduced during distribution of power
Ceiling Fan and Storage type water heater. Discuss
Is it possible to connect a safety device in to parallel?
Why do we need a separate control desk & PLC control panel in Boiler plant or coal handling plant? Can we provide cost effective Control desk cum PLC panel. Is there is an specific need for control desk.. kindly advice.
it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?
how to calculate slip ring induction motor stator and rotor currents??
If we are given a 10 amp cable type and asked to calculate the number of cores used and the thickness of the cable, how do we do it?? please help...urgent!! i hope the question is clear enough!!
in ring main system we use the isolater b/w transfer bus and main bus if we r not use isolatar than wat will be the effect in our sys.
What is Harmonics how it is produced and what is the method to control the same
what is the difference between circular wdg & ractangular wdg?
How many types of protection relays are there based on the characteristic?
What is the importance of counter based plan & how is it scheduled?
What is inductance?
how to calculate
