WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER?
WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN
TRANSFORMER?

Answer Posted / poonam

Vector Groups are made especially to make out difference in
the connections. The connection can be delta(D) or star(Y)
The number after that indicates the phase difference
between the primary and the secondary voltage.
e.g.-> Y11 means transformer is star connected with
secondary voltage leading the primary voltage by 30 degrees.
I am not sure of the effect of phase displacement in
transformer

Is This Answer Correct ?    16 Yes 12 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What are the characteristics of negative feedback?

601


how define the torque in ac drive. from electrical side in the drive friquency ,voltage and current three factor is there.

1615


impliment (AB)`+C to transistor representation

1325


What is the purpose of stand by earth fault protection for transformer ?

1544


Consider three heater bank connected in 3 phase star with neutral.Each heater bank connected in each phase.So each phase get 230 volts supply.my question is,during balance condition, current flow in neutral or Not

1192






Testing report of Earthing of 3.15 MVa PTR.

2119


Please brief working principle & construction of permanent magnet AC Servo motor

1739


Is it required to do earthing in 2nd shop if earthed armoured cable is laid from 1st shop ?

1422


Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.

1411


how to maintain frenquncy with syncronising sub-station for distribution

1649


what is the purpose of shading ring or shading coil in electrical equipments.

3946


what are the stresses in circuit breakers ?

1511


Define rise time.

607


what r the safety measures in UPS ? explain all?

1760


What is control system?

709