Answer Posted / ahmed qasem
VFD is Variable Frequency Drive and it is also called VSD where S means Speed. It is used to control the speed of the motor wherever applicable.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
why industry prefer ht motor instead of lt motor.
WHAT SHOULD BE THE BEST CURRENT RATINGS (PRIMARY / SECONDARY)FOR A CT INSTALLED AT THE INCOMING 11KV PANE? WILL IT BE CALCULATED ON THE BASES OF MAXIMUM DEMANT VALUE OR ON SUM OF ALL TRANSFORMER'S KVA? NOMALLY MAX DEMAND REPRESENT THE MAXIMUM OPERATING LOAD OF THE PLANT AND TOTAL KVA OF (SAY 5 NUMBERS TRANSFORMERS) REPRESENT THE CONNECTED LOAD. WHICH i.e. MAX DEMAND KVA OR CONNECTED KVA ARE BETTER TO USE FOR CT CURRENT CALCULATION? PLEASE ANSWER.
What is difference between insulating medium and fault current interruption medium in a switching device.
Is there any guideline say about display of earthing value near to earth pit
Discribe type of fault in DOL and stardelta startor.
How can we decide cable size from HT panel to Transformer? Please give you reply with some examples.
one conductor length is L.and i am strech uniformly this conductor and made length is 2L.so resistance of this strech conductor is R=4R..but i want to know about area of stech conductor hows it become a/2..
difference between crane drive and line drive.
hi frds, i m electrical engineer.can i get cdr for electrical engineer if u have then send me on my mail id its jayesh_ee88@yahoo.com.please help me frds
What is servo motor? what is its purpose?
what is the most permissible winding temp when we conducting a generator load test?(condition no load)
What kind of preventive maintenance are there for transformer?
Mention what are the different colors on wires indicates?
what is earthing.how we make it,describe briefly.
What is the type of feedback used in an op- amp schmitt trigger?