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 do you understand by dressing a HT/LT pole

1 Answers   Federal Polytechnic Nekede,

We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?

0 Answers   Siemens,

As you achieve greater success with the company after some years, Will you like to be a share holder in our company?

0 Answers   PESPL,

why we use 20 KV, 10KA LA on 22 KV Line

2 Answers  

What is oil temprature with A/T contacts in Transformer ?

1 Answers  

Where burned of electricity,when,who, & why.

0 Answers   NIGP,

How to test the thyresitor or SCR by multmeter?

5 Answers   ABB,

A LT ckt i mean 440 volt flow of current100A.at this time HT current what will ON 11 KV &33 KV.plz givemy answer with example

2 Answers   Neptune,

break down of electricity is more in summer or in winter ? give reason

4 Answers  

what do you mean by partial discharge in cable

1 Answers  

What is sunrise meeting ?

1 Answers   KSEB,

Control wiring of a dol starter for forward and backward

0 Answers   Basj Industries,