what is working of Master trip relay ?
Answers were Sorted based on User's Feedback
Answer / guru
In a protection system due to large number of protection
relays provided for various types of faults, all the
tripping devices are connected to a master trip from where
the tripping command goes to the concerned circuit breaker.
Is This Answer Correct ? | 88 Yes | 9 No |
Answer / hirak subhra majumder
In Several sub-stations and power houses a special type of
installations is applied i.e. generally O/C relay for B and
R phase and Earth fault relay for Y phase. From there the
three trip connections are coming out and is connected to
the master trip coil. Now this relay output is connected to
the circuit breaker. Thus the other relays works here as
slave(Not mandatory) and the later one as master controlling
the operation of the circuit breaker.
Is This Answer Correct ? | 18 Yes | 3 No |
Answer / a.n.v.kartik
Master trip relay is the relay used for which for any fault
on any electrical equipment got trips in addition to the
relay associated for that fault
Is This Answer Correct ? | 25 Yes | 13 No |
Answer / raviteja.n
In any substation master trip relay is employed bcz it
master relay and other relays act as slave relays. Any relay
may it be O.C ,REF, Earth fault relay,Buchloz relay etc.,
will sense the faulty nature of the circuit and they will a
signal to Master trip relay then master trip relay will give
tripping command to CB.
Is This Answer Correct ? | 8 Yes | 1 No |
Answer / pratik
Actually the master tripping relay is connected in
conjunction with all the abnormal conditions which are
probable to occur on the system & operates when any of the
concerned fault occurs & sending a tripping command to the
CB.In addition to this it also locks the closing circuit of
the CB so that if any personnel or external control circuit
if tries to close the CB,the CB won't close until the fault
is resolved & the relay is reset.
Is This Answer Correct ? | 8 Yes | 3 No |
Answer / anbarasan
Master trip relay called multifunctional relay. Its analyze
power quality and fault conditions and protect power system.
This one purpose of isolating faulty power and make
continue operation in equipements(like DG and Main power
parallel opertaion). and its given analoge and digit and
communication outpus also its use for plant automation and
monitoring in closed process.
Is This Answer Correct ? | 10 Yes | 6 No |
Answer / neeraj vishwakarma
Basically master trip relay is called master coz it has the
least operating time ie;it trips first .also it works to
multiply no. of contacts..for eg.if Spam 150 C relay gives
trip contact to master trip relay ..the MTR trips with
changeover of contacts..you can use those contacts for
tripping breaker ,getting indications on DCS etc.
Is This Answer Correct ? | 8 Yes | 6 No |
Answer / mahammad rafi
The tripping contacts of protection relay may not be
adequate to carry the current of tripping coil. Hence, a
seperate tripping relay is used to give tripping command to
the trip coil, called Master Trip Relay. The operating
element of the Master Trip Relay is energised through the
respective protection relay. Further, in the event of
provision of more than one number of protection relays, a
seperate relay called Master Trip Relay is provided to
receive the trip command which in turn trips the switch
gear.
Is This Answer Correct ? | 3 Yes | 1 No |
Answer / nagarjuna
Mater trip relay is one of the latch relay the ANSI Code is 86, It is working like Auxiliary relay but the additional feature it have when fault occurs it is trip after fault clear we need to reset Manually
Is This Answer Correct ? | 0 Yes | 0 No |
a motor's measured current is 45amp,whereas the rated current is 38 amps but still it is running ,how?
Insulater disk using formula for 33/66/135 line h t line
1 Answers Hofincons, Kirloskar, KPTCL,
how encoder works?
What is the difference between Neutral And Earth ?
Why use in ht motore
Why we are getting low voltage in star connection?
what is differnce btwen lll and lllg faults
what is difference between electrical and electronics
how does an centrifugal and screw type chiller will work. which chiller efficiency is high and why.
List the advantages of star-delta starter with induction motor?
What is vector group? What is meant by DYN11?Why is it needed?
13 Answers Areva, Bhel, BRG, Escorts, Fortis,
why when i start my diesel generator it takes 1 minute or less then stop, and i checked the oil sensor is ok and when the generator start i can get 220 voltage but it it is stop after 1 minute or less, how can i solve this problem?