Interested to Buy Any Domain ? << Click Here >> for more details...
why only dc is given as excitation...why not ac???
- 2 Answers
- 5474 Views
- TCS, I also Faced
- E-Mail Answers
Answer Posted / tj
the requirement for the excitation is of constant pole
electromagnet not pulsating pole em, as this only can lead
to pulsating emf on armature.
| Is This Answer Correct ? | 8 Yes | 0 No |
Post New Answer View All Answers
Why collecting electrode of ESP to be earthed
What is the physical significant of power factor?
Why we use 4-20 mA Analog signal for the PLC input? Why not 0-20 mA? Why not 5-25 mA?
what is a speed of rotor when we give supply to stator of 50hz and as well as rotor of 60hz of an induction motor?????
How PADO software increase the efficiency of power plant?
why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving
What is meant by full pitched winding?
In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.
how can I calculate charging current of cable/overhead conductor? what is roll of voltage in it ?
What are the effects of electrical faults?
i have seen one 8.4 MW synchronous motor in a plant located in bellary it is fixed with brushless rotary rectifier ,anybody can explain its start up principle
- two pumps must work with them at the same time but if the first pump start the second pump must delayed for some time to start also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it
what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?
For a stable system, where should the poles of a system be in a root loci plot?
what is destructive and non-destructive testing of welding
