What is oil temprature with A/T contacts in Transformer ?
Answer Posted / kc ng
Normally for transformer oil temperature >80deg = alarm.
if oil temperature >90deg = tripping of VCB.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What is the function of probe in cro?
Dear Mr B C pal...Can you plz. put some light on principle of operation of Z-Ct in conjunction to its use with 1Cx1000Sqmm HT Cables & Directional Ground Fault / Over Voltage Relays...Regd..Parag v K 9899115632
what is the difference between directional & non directional earth fault with example please explain.
What are the raitings of Mcb,mccb and Acb in detail ??
how is calculated the quantity of weight in hot test xlpe?
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
If increased the frequency up to 1000 then what changes shows in voltage?
how many load we can take for lighting
Why lose 1 phase voltage in 33kv to 415v stepdown transformer
What is a commutator?
Please brief working principle & construction of permanent magnet AC Servo motor
PLEASE TELL ME ABOUT QUESTION PAPER OF UPCL ENTERENCE EXAM.
State nyquist stability criterion.
What is trip and closing coil in cb? Why need of them
Which motor connection is preferable star-delta or delta-star?