Interested to Buy Any Domain ? << Click Here >> for more details...
How to control speed of DC motor with AC power?
- 7 Answers
- 13568 Views
- vguard, I also Faced
- E-Mail Answers
Answer Posted / poorna
i think in all the above mentioned method there is a
disadvantage of motor reversal motor reversal cannot be
easily obtained we have to change the armature or feild
terminals, as magnetic field time const is much high field
reversal is not generally employed, even the reversal of
armature terminal is also not done as it may results in
jerks, so the best way is TO HAVE DUAL CONVERTER TO CONTROL
THE MOTOR IA ALL FOUR QUADRANTS
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
which type of questions asking for solar companies?
what are the range of memory address in plc for L&T lx7 4A
what is physical distance of isolator to VCB in 33/11kv sub stations
(1)WHAT HAPPENS WHEN SUDDENLY LOAD GIVEN TO THE INDUCTION MOTOR ? (2)CAN WE MAKE WOOD AS MAGNET ? (3)WHAT IS THE VALUE OF MAGNETIC FLUX DENSITY IN TRANSFORMER ? (4)WHY WE ARE USING ELECTROMAGNETI NOT ELECTROSTATIC IN MACHINE ?
how to setting voltage RTCC panel
As we use capacitor bank in 3ph ckt to improve PF, can we use capacitor in single ph domestric use, in house we have Fan,Mixer,electric cooker,iron,tube choke they also lag the system,because it is inductive load. if it is possible to improve PF of single ph system-- if yes- type of capacitor to be used,connection diagram, working in detail. if no-- list it.
Transformer cores are laminated in order to A simplify its construction B minimize eddy current loss C reduce cost D reduce hysterisis loss
whatis the commertial spec. of distribution boards ?
I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?
how many load we can take for lighting
What is the source of dependent source ?
what is invertor supply and raw powersupply
Explain what cmos is and its benefits?
i want to know about torque of slip ring induction motor
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
