What is difference between ct&pt transformers?
Answer Posted / murali karri
CT is a step up instrument T/F. Its primary is conected in series with load line and secondary winding is conected to 5amp ammeter.
PT is a step down instrument T/F. Its primary is conected in parellel with load lines and secondary winding is conected to 110V voltmeter.
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
On a 6 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 42 AH). What Shall be the current rating of DC MCB ?
1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor
in cvt,there are two windings,1a,1n and 2a,2n.in my one project i use only one winding i.e.1a,1n. the other winding is not in use, so i connect it in open delta and want to close it by ibsertibg thermal resistor. the output of cvt is 132kv/115/sqrt3. plesae tell me exact value of resistor, so i may close it to avoid the resonance phenomenin. send me answer on this email adress please. aetcon-po@aetcon.com
what is a vector protection in transformer
in dc shunt motor if field winding is shorted then
what is zinc diffusion?
What is the accepted limit to increase the choosen transformer capacity over the load and why ?
what about GD square and its important for motor design?
why the difference arise between HT reading & LT reading (submeters fixed in complexes, apartments etc)if the power factos exceed from 0.9 to 1 can the ht meter reads fast?
in india per day how much power is generated including all power station
what are the differant std sizes of cable trenches?
th how could we differentiate between armoured copper and armoured aluminium cable what is the basic application? why we prefer the armoured copper as compared to armoured aluminium.
why we testing the core balance of the transformer before comissioning?
Can clean earth cable be considered as low current cable
how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???