Interested to Buy Any Domain ? << Click Here >> for more details...
what is GRR(Grid Rotot resistance)?Why it is used beside of
LRS?
- 9 Answers
- 63595 Views
- ACC, L&T, Sri Biotech, I also Faced
- E-Mail Answers
Answer Posted / surya prakash
GRR(Grid Rotot resistance) is a resistance box which is
used for speed control of slipring Induction motor & save
the power.The Induction motor having high starting torque
needs resistance in rotor circuit by the use of GRR we can
add the resistance in the circuit & increase the slip so
torque, ones motor will start we reduce the resistance of
GRR by Contactor,and at full speed shott all resistance.
LRS is used where no speed control is required only high
starting torque is required.
| Is This Answer Correct ? | 123 Yes | 16 No |
Post New Answer View All Answers
What is grid collapse? what is the reason for it?
what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?
Could you measure voltage in series?
what is the significance of tan&delta and how it performed in power transformer
What is evaporator & condencer & compressor
is the value of inductance depends upon the value of thitha in doubly excited machine??
What are the insulation standerds for eg H clase and how many insulation standerds are there and its standerds??????
What is the difference between isolators and electrical circuit breakers? What is bus-bar?
What is meant by stator? What is meant by rotor?
How to checked frequency drive output voltages?
what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?
State the frequency for rc phase shift oscillator?
star delta starter contorl circuit... drawing..
Which standard we are following earthing resistance test
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
