what is the ciruit diagram of transformer vector grup test?
Answers were Sorted based on User's Feedback
Answer / thiyagarajan
it will depends upon the transformer vector group for eg
your having ydo means the primary power is in phase with
the secondary if yd11 means secondary is leading primary by
an angle of 30degree yo can draw vector diagrams as per
their phase angle then making short to any of the same
phases in primary and secondary by deriving you can apply
voltage across primary and measrure voltages as you will
get some conditions based on vectors
Is This Answer Correct ? | 2 Yes | 0 No |
Answer / kishor
circuit diagram of transformer for vector group is nothing
but various phase angle betwen primary and secondary
voltages.we have to preadujested various vector groups
reading for reference.hence while checking a particular
group ckt. will sense reading with respt to refernce
value.final result will shows on screen with vector
drg.respt to preadugsted value and circuit.
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / vels
no circuit dioagram is needed
we apply voltage on HV side
measure voltage with respect to the condition of vector group and confirm the vector group
Is This Answer Correct ? | 0 Yes | 0 No |
Why in medium voltage system(3.3kv to 33kv, neutral is earthed with either resistance, reactance or neutral grounding resistance?
how can i find ct ratio of meter by seeing name plate of meter and how it should be used in MF calculation if it shows only-/1???
improve power factor by : 1)shunt reactor 2)shunt capacitor 3)series capacitor 4)series reactor
how induction motor work as a generator?
What are the advantages of the three-phase motor over single phase motor?
do anyone out there know where to find a compleete list on acronyms/abbreviations used in offshore electric engineering. MCB - Micro Circuit Breaker, MCCB-Mouldes Case Circuit Breaker, ELCB-Earth Lekage Circuit Breaker, ELMCB- etc.....
wich type of cable is selected for wiring of 20hp motor?
Is there any difference of regulation of transformer, alternator , transmission line, if yes, what is it?
arcing is due to only capacitance or it is due to both inductance and capacitance? explanation.
Why PT is fitted in incomer panel.....?
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
Why Hg means mecuiry used in vaccum mesuring unit?