Answer Posted / srinivasa chary
Thermal relay is used in DOL starter to protect the machine
from excessive current when it is over loded...esspecially
incase of low HP motors.
| Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
How to calculate Grid rotor resistance(GRR) losses in slip ring induction motor?
how to calculate short circuit current for the busbar
WILL SCHNEIDER MAKE ACB(MASTERPACT)TRIP ON REVERSE POWER?
Ratings of power transformer,Distribution transformer.
How much weight an electrical engine can pull??
What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?
Don't you have similar question banks related to Oral Certification Examination conducted by Mercantile Marine Departments / Directorate of Shipping, Ministry of Shipping for Electro Technical Officer?
What is the function of RCBO? What are the different sensitivity ratings & each application?
How to calculate energy stored in an inductance?
Is it acceptable of installing an earth pit in planters area where bare copper cable, earth rod and connection are susceptible to corrosion due to water?
In case of HV test on medium voltage cables, BS is asking for 4 U0 where as IEC is asking for 3.5 U0. Can any one advise me how this 3.5 times or 4 times U0 is derived?
types of central Air conditioner plant?
Starting current of a 10 HP induction Motor is ______ time’s full load current.
Define branch?
How to design a Unit auxiliary transformer for a power house having a unit of 65 MW and Generating voltage of 11 KV and Secondary voltage of 433V