Answer / naresh

depends on the height of the buidling,depth of he water
coloumn for exmpl 300ft,400ft etc.....,horizontal path of
the water pipe,vertical path i.e height of the building,
after taking these one should calculate the no of satges for
ex 18,20,22 stages, 3ph r single phase power supply,voltage
230v/415v but the actual calculations no idea but these r
the constraints/the details required while selecting the
water pump motor

Answer / shri..

This is the depend upon impiller size means how mutch
impiller can deliver & how much section it can take, at
related RPM

Answer / parveen

its depends upon height of the blg. and size of the pipe

Why resistance is not measure in running conditions of motor

1 Answers   Falcon,

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Difference between split ac and cassete ac?

1 Answers  

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How can calculate the daily electrical consumption of 7.5 HP motor, if the moter runs 24 hrs continiously. Also have to know about 3.5 hp chiller.

0 Answers   Wipro,

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why we multiply 11 in High Electric supply?(eg.11KV, 33Kv, 330Kv etc.)

3 Answers  

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single phase can run in PVC conduit. Three phase can also run in one PVC conduit. But two phase cannot run in one PVC conduit. WHY? reply plz....awaiting your answer.

8 Answers   L&T,

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1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.

0 Answers   ABC,

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why HV test for cables?.why 0.7times?

1 Answers   Bosch, Prince Food Products,

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what is the ATS .And how it works.

0 Answers  

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Control wiring of a dol starter for forward and backward

0 Answers   Basj Industries,

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difference between buscoupler & bussection?

1 Answers  

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why is a power transformer used only occasionally?it is used to step up at generating stations?and that needs to be done all day long !!!!!!!

0 Answers  

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Can i connect all earth pits in ring system..., And wat IS 3043 says...please help me

1 Answers  

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