What are the testing to be done before the installation of
1000 KVA Transformer?
Answer Posted / rajan singh tanwar(j.k. cement
For Power
Transformers the
following Pre
Commisioning tests
are done:-
1.Visual Inspection
2.Measurement of IR
Value
3.Measurement of P
I Value
4.Measurement of
Winding
Resistance
5.Short Circuit Test
6.Oprn Circuit Test
7.Magnetic Core
balance Test
8.Voltage Radio Test
9.Oil BDV & Acidity
Test
10.Checking the
function of
OTI, WTI, OSR, MOG,
PRV
Relays
Last one for the
relay's testing but
it also comes under
transformer testing.
Thanks
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
what are the basic insulation levels & what its Unit
comparision between ACB and VCB
If the feeder rating is 7.5 kw or 10 HP star-delta feeder, MCCB is taken as 63 a, contactors-32 a, how much will be the OLR rating or which range OLR should be considered when we concern about type-2 coordination?
how braking & making capacity of circuit breaker are calculated?
how external lighting design? please give examples?
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
What is frantic effect?
Define open loop control system.
As we use capacitor bank in 3ph ckt to improve PF, can we use capacitor in single ph domestric use, in house we have Fan,Mixer,electric cooker,iron,tube choke they also lag the system,because it is inductive load. if it is possible to improve PF of single ph system-- if yes- type of capacitor to be used,connection diagram, working in detail. if no-- list it.
1)Explain why the cradle guard is used on railway crossing in overhead line construction?
What is the transfer function?
some basic standard questions on transformer.
What types of high speed CMOS circuits have you designed?
What are the major reasons for balancing hydro-thermal mix?
Pls tell me whether we can use EN3A material for shafts of Permanent magnet alternator.What will be the effect of magnetic and nonmagnetic material for shafts on magnetic properties of PM rotor .