Answer / jawahar

when we come to apparent power it denotes as kva ..if my power is upto 25 kv , then p= v*i for single phase ( 230volts)..if my power is above 25 kv then p= root3*v*i..(3phase 425 volts)

Answer / nakesava

KVA*1000/1.732*V*I*0.8

Answer / manoj kumar sharma / sunil kum

LT Side Voltage/HT Side Voltage= HT Side Current/LT Side Current

Exp.:- LT Side Current find out[Ip]=Vs*Is/Vp,

HT Side current find out[Is]=Vp*Ip/Vs

Answer / manoj

Ht Amp*28=Lt amp.  


My name-manoj 9339287775

Answer / kk

Its depend on ct ratio of plant switch yard. For example 100/5 ct ratio so if ht current is 50 than lt current is 50×20=1000

Answer / amar kumar

secondary side I=HT/LT volt

Answer / yakub reddy

I=KVA/ROOT3VI COSPEI

Answer / rana nazim

i=p*1000/v*cospie*roo3

Answer / aman pandey

Lt ratio

Answer / dnyaneshwar

HT. P=√3 VI. In HT Supply vtg in Delta v=vph
LT P=√3 VI COS¢ consider ( V =√3Vph bcs LT side vtg will be in Star connection v=√3Vph

What type of DC motor would you see for a lift?

0 Answers   Ericsson,

what is electricity

3 Answers   APGenco,

As all us know that the capacitor panel is connected to improve the power factor when it is PF is low. whether we can connect the capacitor panel on D.G. side(? If it is yes means why?

1 Answers   Aricent, Essar,

what is the effect of leading power factor on Power transformers in existing in major power utility

2 Answers  

11 KV Power cable end earth connection insulation got burned wht is the reson pl give the resons

2 Answers  

if dc excitation is used to produce manetic flux in rotating machines then ehy it is not used in transformers.

4 Answers  

What are types of losses in the Transmisson Lines ?

4 Answers   GE,

234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,

0 Answers   Jomel,

dear all, in motor operation , motor is of 100 hp and bimetal relay setting is 130 amp, if relay is getting tripped on 120 amp balance current what can be the reason? Relay is newly replaced. I dont know but is there any frequency effect in thit case? Can frequency variation affect bimetal relay operation?

1 Answers  

Describe kW and kva and difference between

4 Answers   BTM,

what is the difference between current rating and breaking current of an MCCB? and for a known load how to calculate the current rating of a MCCB?

1 Answers   HPL,

why dc did not flows to earth?

2 Answers