what is GRR(Grid Rotot resistance)?Why it is used beside of
LRS?
- 9 Answers
- 58443 Views
- ACC, L&T, Sri Biotech, I also Faced
- E-Mail Answers
Answer Posted / ashish chouksey
GRR is a grid resistance box in which the resistance is
controlled by contactor logic as per slip ring motor
requirement and the purpose of grr is to control the speed
of motor by change the resistance of rotor circuit and save
power.LRS(Liquid rotor starter)is used for starting of slip
ring induction motor only . in lrs we use water with soda
for add the resistance and the ph value should be 9-11
| Is This Answer Correct ? | 6 Yes | 5 No |
Post New Answer View All Answers
Hi.. I am a BE GRaduate in E&E. I have 8.5 Experience in Tendering & Estimation field. I have done SAP SD course few years back. But due to some reason i failed to get job in that field and continued my own field. Now I am thinking of changing into SAP seriously. How should i go ahead???
what parameters should we check to reduce the power bill
what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?
1.Z transform always lies around ? a) origin b) pole c) zero d) z=1. Multiples Mcqs which is bother me can’t find answers on internet. Some help required with little explanation . Note: this is not homework or related to any test. Thanks
Why do we mostly prefer to generate and distribute electricity in 3 phase and not in 4 phase or 5 phase?
how is positive, negative, zero sequence is happen.. how is effect on 3 phase system
at work i have a genertor/alternater what is the easyest way to work out if it is dc or ac?
What is the formula to calculate the rating of a three phase air circuit breaker
What is kvar?
A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.
how balanced in star delta connection ?
ROC converges if pole and zero lies inside a) origin b) z=1 c) pole d) zero ? Explanation please? if ROC does not converges then?
how to meas-our losses for L.T & H.T
The size and construction of bushings in a transformer depend upon?
How much weight an electrical engine can pull??
