how many frequent start/stop operation possible in case of
HT MOTORS.
- 5 Answers
- 15467 Views
- DVC, Steel Plant, I also Faced
- E-Mail Answers
Answer Posted / dushyant patel
Depend upon the thermal characteristic of the winding and
type of insulation and cooling system provided maximum start
from the cold is allowed 3 withing an hour.
Due to 7 to 10 times of starting current winding requires to
be cooled. Thermal capacity used is provided by the smart
motor protection relays and that relay is not allowed to
start the motor until and unless thermal capacity after
cooling down is reset.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
what is the write prosidure of stringing of 8meter pcc pole.
HOW CAN I GET 5CORE HO7 CABLE SIZE IF I HAVE 1800A?
How to calculate that clean water supply in one Day from 150 KLD STP?
What is the working principle of servo motor? And explain it.
If the rated speed of a d.c. Shunt motor is1440 r.p.m, which method of speed control would you suggested to obtain a speed of 1500 r.p.m?
Define filter?
the problem faced on star or delta winding connection??
how to select fuse rating for a 3-phase motor ???
IF HT CAPACITOR IN ON POSITION IS THERE ANY LOSSES I.S I SQURE OCCURS IN THE SYSTEM
why impedance relay is used for medium transmission line protection
which is chemical used as in ro water what is difference betweeen multi grade filter&dual media filter
Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?
Explain about how is it working Earth fault'relay and wahts the resistance value of earth bed
how to check regenerative load in drived motor
