Answer / jagdish aher

single ph means RN,YN,BN&3ph means RYB each ph 120 degree
eletrically apart each other.it can be convertd into DC
form with the help of choppers.

Answer / sunil

Single phase is either YR or YB or BR where as 3 phase is
RYBN. To convert single phase to 3 phase multiply by 1.732.
i.e. root 3.

Single phase P = VI
Three phase P = 1.732 X V X I

Answer / pravin patil, amol, aher

Single phase means 230 V 50 Hz Power supply & 3 Phase means
415 V, 50Hz, For converting into another form like
mechanical or Heat Energy,Magnetic Energy.

how to claculate the ups load in KVA pls give the if any fourmoul?

4 Answers  

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Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.

0 Answers   Piramal Healthcare,

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I have a 25kVA three phase transformer on our property. Will this transformer be large enough to run a large home with swimming pool, spa, 2 off full size reverse cycle air conditioners to service a 100 square house (10,000 square feet or 930 square metres)and the general power consumption of this house without upgrading to a 63kVA transformer.

1 Answers  

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What is the stander resistance value between the neutral and earth?

10 Answers   Crossdomain, Sepco,

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Why use in ht motore

0 Answers   ACB Group,

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How the field flux is controlled in DC drive ?

4 Answers   TATA,

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what does vector group Dyn11 tell us? also tell me how will u differentiate between phase lead and phase lag thru this vector group

0 Answers   Bosch,

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why does in transformer the v/f ratio constant?

2 Answers   TATA,

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Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?

0 Answers  

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Dear sir, I am working in wind mill division , pls explain Pls explain in details with formula My question is Wind speed 3.5 M/s Gen RPM is 1500 ( 25 K/w Production ) Wind speed 12 M/s Gen RPM is 1500 ( 220 K/w Production ) Why in 3.5 m/s generation was low , why in 12 m/s generation was high , Pls dont explain wind force or wind density , that one already i know For the above question RPM was same why the KW was different Answer : 1. Its depends on the density ( Force ) of the air Sir , Pls explain wit Formula sir

1 Answers   Vestas,

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difference between isolater and circuit breaker?

7 Answers   Adani,

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who is ohm's and his law ?

1 Answers  

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