What is a liquid resistance starter?where it is used??
Answer Posted / sachin
LRS i.e. liquid rotor starter which is use for starting the
slip ring motor generally ht motor.
IN THIS STARTER LIQUID IS THE MEDIA FOR EXTERNAL RESISTANCE
WHICH IS HIGH AT STARTING AND ZERO AT FULL SPEED.
AND IT IS ONLY FOR STARTING THE MOTOR ONLY.
ON ANOTHER SIDE WE CAN CONTROL THE MOTOR SPEED BY SAME BUT
SAME LITTLE DIFFERENCE IN CONSTRUCTION AND CALLED AS LRR (
LIQUID ROTOR RESISTANCE)
| Is This Answer Correct ? | 41 Yes | 13 No |
Post New Answer View All Answers
Wt is the function of reactive power? How it generates & consume though resultant is zero?
i karmveer bharti persuing b.tech . plz send me syllabus and name of reference books. for preparation of section eng.
What is critical disruptive voltage?
Why 1/3 is used in symmetrical components?
what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator
FOR 16/20 MVA 132/33 KV ONAN/ONAF TYPE TRANSFORMER IT IS DESIGNED FOR 16 MVA WITH ONAN CONDITION.IT BECOMES 20 MVA UNDER ONAF CONDITION.LOAD LOSS IS GUARANTEED FOR 65KW AT 20 MVA AND % IMPEDANCE 13.75. PLEASE TELL US AT WHAT LOAD LOSS AND % IMPEDANCE IT SHOULD BE DESIGNED FOR 16 MVA AND WHAT WILL BE ITS EFFICIENCY AT 20 MVA?
Write down the brushes of a de machine.
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
Why increase in current leads to increase in conductor temperature?
how to test YNyn0 vector group in transformer?
why we cannot protect 100% winding of an alternator by using differential protection?
how is calculated the quantity of weight in hot test xlpe?
what is the function of bearing in dc mchine" and where it is placed
How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?
i have applied for junior engineer 2 c&w for Guwahati RRB please send me last five year question paper