define IDMT relay?
Answers were Sorted based on User's Feedback
Answer / nimish
It is an inverse definite minumum time relay. In IDMT relay
its operating is inversely proportional to fault current
and also a characteristic of minumum time after which this
relay definately operates.
|Is This Answer Correct ?||250 Yes||22 No|
Answer / niranajn
Inverse definite minimum time relay
|Is This Answer Correct ?||203 Yes||27 No|
Answer / klm
It is inverse in the sense , the tripping time will decrease as the magnitude of fault current increase.
"for a fault current of 25KA-the time delay may be 2s.
& for a fault current of 30KA the tme delay may be 1.5s.thus as the fault current increases the time delay decreases.
|Is This Answer Correct ?||163 Yes||6 No|
Answer / suthan prabhu
It is Inverse Definite Minimum Time Relay. This will work
inversly proportional to Fault current and our time delay
settings in the relay.
|Is This Answer Correct ?||84 Yes||20 No|
Answer / prasanna
IDMT - Inverse Definite Minimum Time lag
Inverse - Operating time is inverse with fault current magnitude
Definite - Time characteristics is definite (Near constant) irrespective of current magnitude
Minimum time lag - time taken to operate is less when compared to other protection relays
|Is This Answer Correct ?||52 Yes||8 No|
Answer / md.moazzem hosen
IDMT relay means inverse definite minimum time relay.That
means when fault current increases then operating time
|Is This Answer Correct ?||41 Yes||7 No|
Answer / er. mohammed yusuf fahad
The IDMT Inverse definite minimum time relay is one such
type of relay where the delay time of the relay is
inversely proportional to the magnitude of the fault
current. For ex. If the fault current is of the magnitude
of 8KA the delay taken by the relay to tripp the ckt may be
3 sec likewise if a fault current of 16KA persists in the
system the IDMT delay time will automatically reduce to 1.5
sec and so on. It is used in applications of overcurrent
relays and earth fault relays.
|Is This Answer Correct ?||22 Yes||0 No|
Answer / shyam
it is a type of inverse current relay but with minimum time
|Is This Answer Correct ?||37 Yes||16 No|
Answer / adesh
is an inverse definite minimum time relay
there are 2 precautions to be considered when using this these precautions are the time setting and the current tap setting
these are to be considered since the relay is dependent on the inverse of time
|Is This Answer Correct ?||22 Yes||5 No|
Answer / n.ravi teja
it is inverse definite time relay.and in the name it self
inverse means when fault current is more then its operating
time is less.because if it takes more time the equipment
may damage.so to avoid this the relay is made with inverse
|Is This Answer Correct ?||12 Yes||4 No|
Why back emf used for a dc motor? Highlight its significance.
What is four quadrant metering system.
Is the inductance parameter of transmission line affected by taking the earth into consideration?is the same true for capacitance? Justify the answer.
what is meant by ceiling voltage, ceiling current?? pl reply asap
What is making & breaking current ???
what are the problems faiced at dg comissiong
Why slip-ring and brushes are not required in squirrel cage induction motor?
What is the deffirant between EARTH, GROUND AND NUTRAL
how we arrange the hv side with delta connection in case 33/11kv of transformer.
Sir, I have applied for the of Jr.engineer(Electrical & Electronics) & ASST. LOCO PILOT at ALL RRB BOARDS. please send me all RRB Boards solved papers in the year of 2001 tO till date. i requested send me the papers to my id as soon as possible (email@example.com). (This is very urgent) Thank You,
DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.
what is the difference between Central Battery System and UPS in applications and uses? and why UPS suitable for Computers and central battery for emergency lighting?