Pls explain about vfd control?Where it is used, Give some
example?
Answer Posted / tanmay maheshwari
Variable frequency Drives(vfd) are used for controlling the
speed of AC motors by changing the frequency of power
supply. the advantage of using them is they can be used for
multiple machines having various ratings. The
cycloconverters are used for the conversion purpose.
they are used for ventellating purpose, in pumps etc.
| Is This Answer Correct ? | 11 Yes | 0 No |
Post New Answer View All Answers
What types domain of laplace transforms? What behavior can laplace transform predict how the system work?
Can we use both Electrical & mechanical interlock between tow breakers? if yes how, please explain
In EB metering we face problem kva jump even in no load condition.can any one help to control this
We are planning to synchronized DG's with our captive plant in the event of black start of plant, but before sync we checked voltage of DG with our plant voltage and it varies from 5 V to 450 V. So in this condition how we can sync DG with plant ?
How they LT panel busbar size choose
Assuming that a dedicated neutral earthing transformer is provided for each GT generator, when the two generators are running in parallel, has consideration been given that the earth fault current from one generator stator winding be split between the two neutral earthing transformers? If so, what adverse impact will this have on the operation of the 59N and 27TN devices?
what is rocking arrangement in arc heating
Why we cant store an ac power. If we coo store in which device we can?
What is transient Phenomenon?
Why can't we parallel the secondary circuits of two voltage transformers?
The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is
sir vizag steel ka junior trainee ka paper kitne number ka ayega
in our all power plant have connected in grid and grid voltage and plant voltage is same, but as per as electrical concept the power will transmit from high potential to low potential but here altough same,then how power transmit from power plant to grid.
Can anybody tell abt concrete encased earthing or grounding?
can we use ZNyn11 transformer instead of Dyn11 transformer in distribution for effectively eliminating harmonics from the industrial loads.