what is difference between AC VVVF drive & Dc VVVF drive
explain their working principle?
Answer Posted / arfa
VVVF is a frequency converter for ac motor speed cotrol but
I dont hear "dc VVVF" .
Is This Answer Correct ? | 10 Yes | 4 No |
Post New Answer View All Answers
how a flip flop can be used as a latch?
What is MS-EXCELL?
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???
An automatic water heater is an example of which type of control system?
Define reserve-generating capacity?
what happened when we supply a dc current in dc motor?? can it worked properly?
Why PT voltages are measured with respect to ground? What do u mean by voltage or current polarized.
how many synchronous motor are there in any power plant
Electrical Engineering
Differentiate between induced emf and self inductance?
Define availability (operational)?
What Is Sampling?
Dear all: Recently we got a question about Interface between PMS and SAP-PM.once we got a update message from PMS.we should set the deletional flag for functional location in SAP system.Is there any FM or BAPI to use?There are only functional location create and change provided by SAP. Best regards!
I am apply the AAI. So i want electrical sample question paper in technical with answer my id is vijayjobsmart@gmail.com
hi friend i am going too attend for hpcl in this month please help me by sending written test question papers i am in the stream of E.E.E