what is the KVA formula of a three phase transformer
Answer Posted / tanmay chatterjee
output KVA=1.732*V(OUT)*I(LOAD)
INPUT KVA=3*(supply voltage)*(primary side line-current)
| Is This Answer Correct ? | 8 Yes | 3 No |
Post New Answer View All Answers
what is the use of expulsition protective gap in 11Kv line.
Between educational qualification and practical work experience, give us a brief explanation on your practical experience in your past Endeavour that you performed well to the satisfaction of your past or present employer?
why is the conservator tank painted white on the transformer
what is the function of anti pumping relays? what is KVAR? How it is generated in alternator? What is 3rd Harmonics? What is IDMT relay?
what is the constructional difference between a power transformer and potentian transformer?
following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?
WHAT IS THE DIFFERENE IN ACTION OF MCB,MCCB,RCCB
Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............
what is the significance of terminal voltage and phase sequence in the operation of paralleling of two generators?
What are the two segments of nyquist contour.
why we permissive overreach in distance protection.where it is applicable to use in long r short lines
IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?
WHAT IS AIR GAP VALUE IN MM FOR A 11KV BUSHING OF 11KV/440V DISTRIBUTION TRANSFORMER. AND AIR GAP VALUE OF 25 KV BUSHING OF AT TRANSFORMER OF 25 KV TRACTION. WHAT IS THE CALCULATION FOR THE AIR GAP PERMITTED FOR BUSHINGS AT DIFFERENT VOLTAGES.
what is difference between earthingpits,earthing grid & earthing mess?
in Telecom DC system-why positive +ve is made earthed.and - ve is fed to load.