What is mean by vector group? For what purposes we doing
vector group test in transformers?

Answers were Sorted based on User's Feedback



What is mean by vector group? For what purposes we doing vector group test in transformers?..

Answer / satya dev

In the 3 phase AC systems all the phases are having Phase
displacement called electrical Angle.In the case of
transformers the windings are connnected in special Faison
called Vector group. DY11, DYn11 are the vector gruops
which are generally used in India.Testing of vector group
is only to test the electrical of Connected Phases in the
Transformers.

Is This Answer Correct ?    4 Yes 0 No

What is mean by vector group? For what purposes we doing vector group test in transformers?..

Answer / muhammad asghar

Vector group contains two things:
1- Scheme of Connection
2- Phase shift between LV and HV windings

For Example, if Vector Group is Dyn11 then
Capital 'D' means HV winding is connected in Delta
Small 'y' means LV winding is connected is star
Small 'n' means LV winding has a neutral also
11 means LV winding is leading HV winding by 30 degree.

Is This Answer Correct ?    5 Yes 1 No

Post New Answer

More Electrical Engineering Interview Questions

Explain Analog and Digital signals?

1 Answers   UOG,


What is the equipment used to control the generator output?

3 Answers  


how to calculate capacitor rating for an induction transformer ex.for 12 mva furnace calculate capacitor rating

2 Answers  


How to calculate amount of copper used in a motor (AC&DC), generator and transformer? Datasheet provides power rating and mass of the equipment....can we somehow use this available info.

1 Answers  


why selected genration, transmission or any at 11kv, 132, 220, 220 or 440 voltage which is propotional to 11. why does not any for ex. 12 kv 13kv or any

2 Answers  






A ii kv 1200 A Breaker combination fixed in a cubicle. How many ampere Fuse is required? If fuse is not using, Why?

0 Answers  


what is the importance of Partial Dischage test for Electrical Equipments

0 Answers  


i am trying to PSUs/govermeant jobs since last 2 years but still i m not success, plz help me.

0 Answers  


How to convert KVA rating into HP rating?

6 Answers   AITM,


What are the different types of testing in ht cables?

3 Answers  


Two electronic energy meters are connected to seperate phase wires, but connected to a looped neutral. Are these going to function correctly?

8 Answers   DRDO,


How much ph is maintained of water electrolyte which is used in LRS for 1200 kw slipring induction motor ?

0 Answers   AMS, JK Lakshmi Cement,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)