Interested to Buy Any Domain ? << Click Here >> for more details...
why field resistance is higher than armature resistance in
dc machines? and why filed resistance is kept at min value
at starting in same time of armature resistance at max value?
- 4 Answers
- 32355 Views
- I also Faced
- E-Mail Answers
Answer Posted / lokesh luckky
It has two reasons
1) in DC generator to allow large generated currents to output.
2)in motor (torque is proportional to current) so to produce high torque we must allow high currents through winding.
| Is This Answer Correct ? | 7 Yes | 0 No |
Post New Answer View All Answers
what is model question rrb junior engineer electrical gr.II
What is a differential amplifier?
How to confirm the Phase shifting Transformer VECTOR GROUP relation , as below ZNy11.45d10.45-ZNYy0.15d11.15
what is under coal gassification?
how freewheeling diode improves the powerfactor
if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .
Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?
Why does the Solid state Rectifiers for 3-ph brake motors sometimes have 2 & sometimes 3 output terminals?
What is the function of capacitor in electrical circuits?
what is zinc diffusion?
what is diff. between earthing grid,earthing mess, earting grid?
Define rise time.
HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT-SWITCH BOARD,MLDB,ACB,BUSBAR,ETC,......?
why motor range is available 22kv,30kv,37kv,45kv and so on? why motor range is not available 21kv,24,25,26,27kv and so on?
how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?
