Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / t.suganya
NO
Why starter?
When DC Motor is suddenly connected to a supply source,
it creates stresses on the armature and supply system.
Since at standstill the armature is not developing any back
e.m.f, so the more current than the rated current
and this will cause damage to the motor.
What the starter do ?
A Motor Starter is used for the smooth starting of a motor.
It consists mainly of a variable resistance placed in
series with the armature.
The purpose of this resistance is to restrict the armature
current to a safe value for starting and accelerating.
The other uses of using a Motor Starter is
· To disconnect the motor in case of an overload
· To disconnect the motor when the supply voltage fails
· To disconnect the motor when the field current is reduced
beyond limit.
| Is This Answer Correct ? | 53 Yes | 2 No |
Post New Answer View All Answers
static chagre
i have attended the interview on 4th June,08 at Kolkata in IOCL, can anybody tell me what is its result
how much flux density of CRNO core
How can we calculate the motor frame sizes?
In the Variable Voltage Variable Frequency Drive, how the Voltage and Frequency varied ? Is it varied in the Inverter part of the Drive ? Please give us supporting document if any.
WHAT ARE THE EFFECTS OF SERIES RESONANCE AND PARALLEL RESONANCE ON THE CIRCUITS PARAMETERS?
advantages and disadvantages of inverse definite minimum time RELAY
can any one suggest me the tilt angle of my solar pannel ?? or tell me how can i know the fix tilt angle of my solar pannel?? my cordinates are 31.503629,72.993164.
If Polarization index of motor 8.75 at 500volts of medium voltage 4.16 KV motor what this mean winding good or bad pl answer if any reffrence book give me the link
What are the major reasons for balancing hydro-thermal mix?
block diagram of 2 ups system connected in hot stand by mode?
Either the Armoured Earthing strip of HT 3 core cable have to pass through CB CT or not , why ???
Why generation voltage in thermal power plant is between 11kv to 33kv?
how can found motors folt current ? how can disided circuit breakers caoicity and breaking capicity ?
why single CT used in DOL starter power circuit?
