Interested to Buy Any Domain ? << Click Here >> for more details...
what is the use of vector group in transformer. means what r
the application of various vector groups?
- 5 Answers
- 12975 Views
- I also Faced
- E-Mail Answers
Answer Posted / paul
By having multiply vector groups, you have the ability to parallel 2 or more transformers with with different vector groups by altering their connections.
EG. you can change a Yd11 into a Yd1 by changing the HV and LV phase sequence from positive to negative.
So with that in mind a Yd1 can be converted to a Yd5 if required by placing L1 onto L2, L2 onto L3 and L3 onto L1. The reason for the 4 vector group shift is down the fact that you have rotated each phase by 120 degrees
| Is This Answer Correct ? | 0 Yes | 3 No |
Post New Answer View All Answers
For refrigerators the motor current is raised beyond its rating on both conditions when the voltage of the system is more(say 270v) than the rated voltage(220v) as well as when the voltage of system is less(say 160v) than normal voltageof 220v, why explain?
how to differentiate a mpcb,mcb with a contactor? Explain their working operation
How to select a cable size for particular load?
How to calculate flow of water delivered by pump when pressure & size of pipe line is given
What does quality factor depend on in resonance?
What are the advantages of stationary armature and rotating field system?
How to calculate multiplication factor in kva example 500kva ans pls ?
what happen as when voltage drop(or may decrease) ? in case of atomic base theory?
What is the types of HT motor testing
How can you calculate the size of the down conductor cable for the lightning protection system. Is 70mm2 cable can replace 95mm 2 bare copper cable when the copper tape size is 25Wx3 thk mm.
Why field rheostat is kept in minimum position while armature rheostat at maximum position?
Earth leakage relay basic knowledge principle
What will happened if the neutral of the (star connected secondry) Xformer disconnected? (if its Above KVA rated one)
Why ground terminal is used in pot meter 10k ohms
how we calculate electrical load on a building according to area?
