what is difference between start imitation and start
interlock for 3 phase motor protection ?
Answers were Sorted based on User's Feedback
Start Limitation: It is the limitation from the Motor
Design side. There is a limitraion for motor from No.of
Consecutive hot Stat and Consecutive Cold Stat according to
motor themal withstandabulity.
Start Inerlock: It is permissiveness given to start the
motor from its protection or proceess interlocks.Example
motor cooling blowers should be on before motor starts.
|Is This Answer Correct ?||7 Yes||0 No|
Answer / shivani
Start limitation means no. of start this is bercause if
consecutively u start the motor the motor got heated&
thermal conductivity will dec. .not goo for its health.
Start interlock means
frequency,voltage& powerrequirement we can control by
different relay so. after fullfilling those constraints
only it should start for giving poptimal performance.
|Is This Answer Correct ?||1 Yes||4 No|
what is earth-fault?when it occurs? to check where it occurs what type of test should we do?
how the B-H loop obtain under the static condition
What is different between MCB & MCC & isolator switch
Why saturation region slowly shifted in the left side?
In Energy meter How many rotation Equal to one unit.
IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?
defined power system?
What is the relation between frequency and motor rpm?
in dc shunt motor if field winding is shorted then
What is the minimum setting in REF relay because i am facing some problem whenever power resumes after power failure my transformer is tripping because of REF trip. I am using CSPC make numerical relay(DIP switches). Now setting is 15 percentage. What is the reason for this triping. I sm waiting for answer
what is protections used for 6.6kv ht motor
can we use heat gun instead of gas torch in 11kv termination kit. I mean can both sources provide enough amount of heat to ensure the uniform shrinkage of sleeve.