in 11kv/400v transformer when only one phase of 11kv supply
fails what happens to sec voltage and why
Answer Posted / sunit
from my point of view what i have seen physically .. if one phase of the 11kv line is faulty or jumper in transmission lines burnt out then there will be a low voltage in the secondary side of transformer,
actually DTR breaker in control room needs to trip the circuit but if the relay time settings are not accurate then it won't trip the circuit rather show low voltage in the secondary side...
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Logic using 1 kV or 1,1 kV grade in house wiring Low voltage cable. Explain/suggest? some use 1kV and some prefer 1.1kV grade insulation low voltage cable why??
IF HT CAPACITOR IN ON POSITION IS THERE ANY LOSSES I.S I SQURE OCCURS IN THE SYSTEM
Why we make earth connection with Transformer Body and What will be the minimum size of copper wire as per code with respect to KVA rating of Transformer?
When calculation of fault current and fault Kva is to be done,why always we use per unit value and why we consider the base kva?
How cable from Kit-Kat to main switch, from starter to motor are designed?
Tell me in detail about c.t. And p.t. ?
What is boucholz relay and the significance of it in to the trformer?
how to avoid electrical shock how capacitor store charges wat are the speed control of induction motors state faradays law flemings left hand rule what is rotary converter wat is transmission and distribution what are the sources of energy abrevation of acb,vcb,sf6,igbt what is output equation of transformer which test copper iron and iron loss are calculated what is eddy current draw a single line diagram (10 marks) draw direct online starter(10 marks)
What is self exciting?
how to set relay setting? and example calculation...
Hello seniors m an engineering student in 3rd yr..i want to know what are the software course in electrical field?i wanted to do certification course but i dont know much about the course?..Regards
I need bhel previous year quetion papers for electrical engineering department.I searched but i could not find out
full form of electrical?
Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.
what is earth-fault?when it occurs? to check where it occurs what type of test should we do?