Answer / rahul deo purohit

Short Circuit TEst And open circuit test

Answer / e.saravanan

The General test conducted on transformer is
1.Insulation resistance test
2.Open circuit test
3.Short circuit test
4.Double voltage and double frequency test
5.High Voltage test
6.Resistance test
7.Vector group test
8.Magnetic balance test
9.Break Down Voltage test

Answer / vikramsenareddy

open circuit and short circuit test.
impulse test.
Megger test.

Answer / arya anup

mainly open circuit,short circuit test in order tomeasure
core loss & copper loss. then megger test to check the
insulation level between lv & HV coils.next is high voltage
test to measure capability to withstand impuse of very high
voltages( about 28kV will be applied between HV & Earth)
Then coms double voltage and double frequency test,where
we apply double the rated voltage on to the lv side with
100Hz frequency. this helps to find out insulation problems
between phase to phase.(All tests should be done with oil
inside only)
Oil also to be checked for its break down voltage(shold
with stand minmum 30kV)

Answer / raja

1.OPEN CIRCUIT TEST
2.SHORT CIRCUIT TEST
3.VECTOR GROUP TEST
4.MAGNETIC BALANCE TEST
5.TAN DELTA TEST OF BUSHING CT
6.SFRA TEST- SWEEP FREQUENCY RESONANCE TEST
7.BDV- BREAKDOWN VOLTAGE TEST
8.RATIO TEST
9.INSULATION RESISTANCE TEST
10.STABILITY TEST
11.HIGH VOLTAGE IMPULSE TEST

Answer / gokulkrish

The General test conducted on transformer is

Open circuit test
Short circuit test
Double voltage and double frequency test
High Voltage test

Answer / anbarasu.r

open and short ciruit test

Answer / krupa reddy s

all routine tests and short circuit test

why the generating / transmitting voltage is in the order of multiples of 11(ie 11kv,22kv,33kv......)

1 Answers  

What is the Difference Between choke & ballast

3 Answers   ABB, ICS Integrated Computer Solutions,

how can calculation ate Amps for cabel. Ex-for 1sqmm wire hou many amps we can draw

0 Answers   Videocon,

what is the per unit cost of generation of electricity at thermal,hydro,desael,solar,gas power plant

1 Answers  

how i calculate the syncrones generator NGR resistance .if we have a 6mw generator line voltage of generator 11kv also line current 393.3 ampere.

0 Answers  

why are laminations used in constructing the field core?

3 Answers  

what is the speed of the darkness?

3 Answers   Wipro,

single phase can run in PVC conduit. Three phase can also run in one PVC conduit. But two phase cannot run in one PVC conduit. WHY? reply plz....awaiting your answer.

8 Answers   L&T,

What is highest size of HT motor like 11 kv or 33 kv,and how to make it 750 rpm.i think the size will be very big.any idea ? pl. reply..

0 Answers   ABB,

what is ground fault in ACB?

0 Answers  

I'm looking for a manual set for a Credence ASL-1000 or ASL 3000. Softcopy would be preferred but I'll take what I can get.

2 Answers  

whose motors self starting synchronous or Induction motor?give fact reason why not self starting another mother

2 Answers