Interested to Buy Any Domain ? << Click Here >> for more details...
about transformer oil material & Test name for the
measurement of its dielectric strength & wht will u do if
its dielectric strength goes low ?
- 2 Answers
- 6673 Views
- NTPC, I also Faced
- E-Mail Answers
Answer Posted / alex
Transformer Dielectric oil is tested in a Test Cell, I have
a few of them at home that I inherited from the origional
designer of the test. They look like a thermos flask and you
fill them with a bit of the oil from the transformer and
insert a center section that sits 2mm away from the surface
of the inside of the flask all around (2mm dielectric gap
all round). It is held there with glass / Mica supports. 2KV
is then passed between the inner and outer surfaces (via the
oil) to test its dielectric strength. A high voltage bridge
is normally used to get accurate resistance readings. If
dielectric strenth is low due to contamination it is replaced.
| Is This Answer Correct ? | 3 Yes | 2 No |
Post New Answer View All Answers
What is quadrantal symmetry?
what is the voltages using in movie theaters??? why ??why not other??
Draw the single line diagram of the power station?
How to size Air Circuit breaker (ACB)? What is the most important factors?
if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value
1 hp is equal to how much watt?
What are the two major types of control system?
we have 3 single phase transformers. how will we generate 6 supply from 3 phase supply input
How can two 3 phase transformers of same KVA and Voltage be connected in parallel?
how can calculation ate Amps for cabel. Ex-for 1sqmm wire hou many amps we can draw
how can we select the appropriate VCB ?
In EDO ACBs what is a purpose of closing coil and motor, what is the operation of these devices are they inetconnected. means if we give supply to motor and by BCS we charge Closing coil,what exact is operation is and how it charge a spring of ACB. Sir if anybody has an wiring diagram please send me the link to operate and EDO breaker.
What is grid collapse? what is the reason for it?
Either the Armoured Earthing strip of HT 3 core cable have to pass through CB CT or not , why ???
How to do fabrication , busbar and wiring cost for : 1. LT Panels 2. C& R Panel
