what is the principle of vvvf drive motor

Answer Posted / kishore

flux is directly proposnal to the voltage.

Is This Answer Correct ?    1 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how to handle 2500 kva transformar

1128


What is the drawback of class b amplifier?

640


The magnitude of sum of two sinusoidal av voltage is equal to 230 volt.the magnitude of each individual voltage is also equal to 230 volt.what must be the phase difference between voltages?

1160


what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA

2312


What is a difference between indoor transformer and outdoor transformer of same rating

5197






why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?

1586


Why use in ht motore

1250


What will happened if the neutral of secondary of Xformer ( Star point) Note it's above KVA rated Xformer

1413


What is knee point voltage of transformer?

664


How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?

1508


what is the relationship between phase & neutral

2062


What is the type of earth fault protection used in battery? explain.

1854


The synchronous machine excitation system explain

1320


how to calculation increase capacitor,increase power factor for three phase.

1630


we have one oven for 12 zone we are installed ir lamp in oven we control load from thyrister and 0 to 5vdc so our zone no 8 getting bright in fraction of second so what we do.. Please answer

1297