How to Select a Transformer Rating ?
Answer Posted / biyanka bohra
Transformer's rating is always shown in kva instead of kw because there is no phase difference between current and voltage. it is multiple of primary current and primary voltage for single phase transformer and √3*V*I for three phase transformer
Is This Answer Correct ? | 0 Yes | 3 No |
Post New Answer View All Answers
why we used ZNO in Lightning arrester.
Q) Write VBscript code along with QTPscript code in QTP tool for below scenario 1. Launch yahoo site(i know) 2. Do loogin(i know) 3.Click inbox link(i know) 4.Go to every page of mail box and count no.of read mails and no.of unread mails(i know) 5.Store page numbers, read mail count and unread mail count in a new excel file sheet 6.Create 10 types of graphs on that data 7.Do logout and close site(i know) 8.Save new excel files with graph
is oil viscosity affect on motor current?
After synchronization with grid what is the demand value QKVAR and how we will maintain that?
how can found motors folt current ? how can disided circuit breakers caoicity and breaking capicity ?
can I improve the furnace power factor (10 mva transformer) by adding a capacitor bank before the transformer.Does system power factor vary a lot with the furnace PF?
what is deffrence between squirral cage and wound rotor in IM?
What do you mean by phasors?
How much inductance or resistance require as a starter in series with induction motor of specific capacity(e.g. 5 hp) ? What is formula for it ?
The size and construction of bushings in a transformer depend upon?
How the circuit breaker is selected for Induction motor of 100 kW, 415 volt, 0.85 power factor, 0.95 efficiency ?
From what on-site components does the HT panel monitoring the bus-bars in a 11kV system take inputs?
DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.
why it is not advisable to run low rating (19KVA) DG sets in parallel for long durations even though they are provided with droop ckts (QDC)
working principles of cf lamp,incandescentlamp and f lamp?