check list of maintenance of transformer?
Answer Posted / latika
For Power Transformer:-
1] Insulation test [P-N,S-N & P-S]- Yearly
2] BDV of Oil [top and bottom sample]- Yearly
3] Topping up of Oil if reqd.
4] Opening of all stud connentions cleaning of connectors,
washers, replacing damaged ones and reconnecting properly
both in HV and LV sides.
5] Conditioning the earth electrodes [ both body and neutral
earthings] i/c the continuty made by flats or copper wire,
tightening of joints if any, watering [weekly] in case of
hilly lands.
Beside that any urgent requirement like heavy oil
leakage, any generation of extra heat etc are to be attended
immediately.
| Is This Answer Correct ? | 19 Yes | 2 No |
Post New Answer View All Answers
To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors
What is maximum power transfer theorem?
What is difference between Sample test and Routine test in safety standard?
why cable i burning without tripping. how can protect led street lights
Is there any reason that we get shock on touching phase wire because the earth is at neutral potential? Is there any reason that the earth is at neutral potential because the neutral is earthed in apower station
low frequency protection why recomend?
What is the Minimum winding resistance of motors ( small & big)? referance range
Which type of air compressor is used now a days in the market. Keeping in mind of energy efficiency and maintenance points. Relevant documents may also be sent on mentioned email ids.
How do the synchronizing lamps indicate the correctness of phase sequence between existing and incoming alternators?
why does a dc machine has high efficiency while working as a generator than as a motor ..
In three pin plug 6 amp. 220V ac rating. Why earth pin diameter is higher than other two pin? What its purpose ?
I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw (Electrical).Which subject to be consider. questions are generally asked from which subject.Plz help me out.
how to find three phase complex power in per unit and MVA?
1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?
how is working bearing heater?
