i have dry type transformers can you help me that how many
tests i can do to know the performence of transformer and
also please tell me about the BDV test and Insulation
resistance test in oil cooled transformers
Answers were Sorted based on User's Feedback
Answer / s ghosh thakur
The following tests to be done during commissioning.
1.Duster value.
2.PI test The value should be above2.o
3.Tan delta test.
4.Ratio test.
5.short ckt.impedance test.
6.vector test.
7.IR test.
8.Polarity test. Thats are sufficient.
BDV value of TRANS OIL should not be less than 50 kv.
IR value of oil cooled trans should be 100M w.r.t gr.and HT
to LT also 100M.PI test should carried out value min 1.5 to
2.0
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / brijesh soni
yes this ans is right you may be test Oppen circuit test,
Megnetic bellence test And very important Inples test.
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / nithiya
tan dalta test only for above 220KV higher rating
transformers only conducted , Impuls test only conduted in
factory only..and Asper IS 1866-2000 less then 72KV=40KV,
170KV=50KV above 170KV=60KV.
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / pinaki chatterjee
according to all routine test as per IS-2026 PART 1 and magnetic balance, also current balance test should be require if necessary temperature rise test can be made.
if the voltage level is 11 kv so IMPULSE TEST AS PER clause 12 can be made for better acivement.
partial discharge should always check
Is This Answer Correct ? | 0 Yes | 0 No |
what is Insulation monitoring device. where it is used? (in switchgear room or control panel or in field equipment)
what is the difference between torque induced and torque load?compare them with respect to dc motor?
what is the value of combined earthing in general electrical circiut?
0 Answers Cathtect Engineering,
is it possible to run the any motor when winding grounded? how?
i am getting to neutral earth voltage zero ,is this a perfect earthing ?
what is difference between KW,KVA,KVAR? also give me the formula for all the three...
How Calculat the Cable Sizing of HT/LT System & Explian by one Exampal?
Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV,20kV, 30kV?
Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?
why do select 11000v rubber mat even we use only 415Volts
1 Answers Saint Gobain, Tata Steel Limited,
how can we know the size of cable cross-section from current rating ?
What is difference between ct&pt transformers?