what is GRR(Grid Rotot resistance)?Why it is used beside of
LRS?
Answer Posted / arun kumar.k
GRR it is may be resistance box it is the speed controlable
device and power saving device it is slip ring induction
motor Or rotor resistance motor
When Resistance Decereases speed increases
when resistance increases speed Decereases
| Is This Answer Correct ? | 7 Yes | 5 No |
Post New Answer View All Answers
What difference between ref protection and differential protection ?
what are the disadvantages in GIS over AIS
What is the maximum percentage voltage drop (vd%)for a motor control center
What is precision of a measurement?
Why an ac solenoid valve attract the plunger even though we interchanges the terminal? Will the poles changes?
Explain how to determine capacitor tolerance codes?
What are the types of control system?
How we select the vector group of 3phase power transformer?
temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%
Why do not we prefer non conventional sources of energy to conventional sources?
How does a tertiary winding filter harmonic(espcially 3rd one) from entering into load system?
A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram
What are the basic components of the feedback control system?
What is the difference between the transmission line and distribution line?
What do you mean by the zone of protection?