what is the function of a commutator in a dc generator?
Answer Posted / vindhya vasini
the function of commutator is to lead current from external stationary leads to the rotating coils of the armature winding in case of motor and to draw current from armature winding to external circuit in case of generator
basically it act as a rectifier as it converts sinusodial(a.c.) signal into d.c signal
Is This Answer Correct ? | 24 Yes | 1 No |
Post New Answer View All Answers
explain the process of commutation in a dc machine. Explain what are inter-poles and why they are required in a dc machine.
Write down the name of 2 lady Bir Pratin of Bangladesh
How to measure the Harmonic Distortion of UPS ie THD?
How we can recongnise the phase displacement of transformer connection between primary & scondary...plzzz explain it with example.........
Please define ampere?
why Y CONNECTION IS BETTER INTERMS OF EFFICIENCY AND P.F FOR A LAOD LESS THAN 40% AND WHY AFTER DELTA IS BETTER FOR > 40%
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
how to find the capacitance value of the motor while running??
What is your acheivements
we are going to install a solar PV site and how can we calculate PV Solar Panel Efficiency, can anybody tell me complete method for its calculation.
Classify milling machines.
What is difference between mcb and mccb.
what is self capacitance of inductor
How is the resonant peak, resonant frequency, and bandwidth determined from nichols chart?
if flux and load static in dc motor and supply voltage increases 20% then what happened in speed