How to take Transformer oil Break down voltage test?
- 9 Answers
- 27448 Views
- I also Faced
- E-Mail Answers
Answer Posted / saravanan.m
*Take one sample from top of Transformer and one from the
bottom of transformer.
*The BDV of oil should withstood min 50 KV
*The gap between the test sample is 2.5mm maintained
*Each sample(top/bottom) should be checked seperately
*Procedure
a.Voltage should be gradually increased from 0.
b.At one point Flash will take place and that point is
termed as Bread down Voltage.
*If its withstand means the viscosity of transformer oil is
good
| Is This Answer Correct ? | 4 Yes | 7 No |
Post New Answer View All Answers
The electrical energy required to raise the tempreture of a given amount water is 200 kwh. If the heat losses are 20%, the energy required is?
If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?
Why negative feedback is preferred in the control system?
The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is
If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..
How Can You Relate Power Engineering With Electrical Engineering?
Please brief working principle & construction of permanent magnet AC Servo motor
how many types are their in switchyard or substation(like D,I TYPE), what is differant between them
what is the use of the circle diagram
What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.
What is the height of DA, DAL, DB, DC & DDE tower?
what do you mean by class PS CT and what are technical details needed for calculating it?
What do you mean by lighting transformer?
What type interview questions ask in Electrical technicians
Sate maximum power transfer theorem?
