A 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

2776

Difference between shunt, PMG and AREP excitation. Which is the most reliable between PMG and AREP.

9531

what is mind in cable

2007

why +24 v and -48 v give to BTS? If -48v protect from surge then why we not use -24 v?

1790

What is the typical enclosure type used for Indoor switchgear / Outdoor switchgear Units? - In Onshore / offshore Units?

955

why we use the 100% and 95% stator earth fault protection for the synchronus generator ?

2255

Can you explain about Restricited earth fault protection scheme

1813

i am electrical and elctronics engg passed out in 2009 want to attend for reliance placements.plz send me apttitude ,technical and hr question answers to my mail plz. my mail id-kat.bindas@gmail.com

1981

How to determine stage of Automatic Power factor controlling Relay(Apfcr)?

2128

How to design inductive load for 3 phase 440v and maximum 5 amps for star or delta? Can we use a 15kW, 1450rpm motor for 15kW, 960rpm apllication?If yes.how......n.if thesame motor used what`s it`s sideeefect.

2377

How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

2130

area control error

1697

Apparent power is expressed as V * I(Conjugate). Why not in V * I ?

3862

The ripple frequency in output of fullwave bridge rectifier is a. Half the input b. Twice the input c. Same as input

2228

Why is it prefer to initiate circuit breaker failure by "86" lockout relay not by "94" tripping relay ?!

1761