How the field flux is controlled in DC drive ?

Answer Posted / kvv.surendra

Its is by armature control for below rated and field control for above rated speeds

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how to calculate the no load current in transformer?

1988


How to Prepare preventive maintenance shedule of machine tool.

1529


how cables go in and come out for distribution from the feeder pillar box?

1605


how the testing of protection CT Testing done through Primary injection kit please describe in detail procedure...

1805


In EHV transmission line a neutral grounding reactor is often placed at neutral point of shunt reactors. What is the recommended protection for this neutral grounding reactor? Should I use a fast closing switch to bypass neutral grounding reactor when this protection operates?

2767






static chagre

1710


What is relation between mu(nought) and epsilon(nought)?

884


how to modify DOL control panel into Delta Y connection?

1496


what is the use of expulsition protective gap in 11Kv line.

1693


mostly the questions were from machines... d.c. machines, transformer, synchronous and induction all theory paper........ few from power system... but the level of paper was easy.....

1488


why occ characteristics curve in not tracing back when we are bringing back the rhoestat?

1442


how we can find of current direction(supply comming/out going direction) when a transmission line passing through sides.

1915


Explain thin film resistors and wire-wound resistors

645


Inductor and capacitor........power in one phase and ...... in it another phase.

1611


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???

1257