Normally the
starter used to
reduce the
starting
current.but the
dol starter do not
it,so why we use
it?
- 4 Answers
- 8316 Views
- I also Faced
- E-Mail Answers
Answer Posted / naresh
The name itself indicates direct online starters and these
starters will employed for low rating motors, because in
low rating motors the loaded torque is also low and
capacity of starting current will not be such high enough
to make severity, but the protection of motor at voltage
levels is important. DOL starter not only ensures on & off
but the magnetic opearting coil functions in proportion to
the rated voltage. at low voltage the magentic coil trips
down and at high voltages the coil gets damaged. here the
coil used is very sensitive to the voltage and hence it is
voltage protection device and the bi-metallic strip inside
starter makes it current protection device.where as mcb is
only current protection device.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what is die electric strnth of transformer ?
Define peak overshoot.
what type of earthing do for dry fissure rock?
what happen if drive input fail momentry at 48.5 HZ frequency?
suri transmission
In single phase capacitor motor, if the motor rotate reverse direction then how much power will be consumed by the motor and why?
What are gain margin and phase margin?
How to calculate Temp from Resister from PT100 equation,
What is power relay?
IF alternator SCR value will be high means what happen in alternator efficency at operating power factor of 0.8
how to calculate the capacitor to maintain power factor?
What is the difference between a verilog task and a verilog function?
During Starter Panel Com missing I Found The Main Incomer 40Amp MCB 10KA Trip When Motor Change Star To Delta Motor Rating 20HP BUT When We Use Same MCB To Other Motor It Does Not trip Or What Is Necessaries for Star Delta Starter MCB SFU MPCB OR MCCB And What are The Breaking Capacity of MCCB in the Motor above 15HP
how is control wiring coding is done in a CRP panel ?
What are the advantages of using distance protection schemes as opposed to normal overcurrent/ earth fault protection on high voltage feeders.
