Time Left - 20:00 mins
GATE 2023 Power Systems Quiz 51
Attempt now to get your rank among 47 students!
Question 1
cycle circuit breaker is used for clearing a fault in transmission line, so that it has fault clearing time & arcing time are 120 msec & 5 msec respectively. Calculate relay operating time.
Question 2
Which of the following is a universal torque equation
Question 3
While energizing a transform to prevent the mal operation of a differentially connected relay, the relay restrained coil is biased with which of the following harmonic component?
Question 4
In which of the following circuit breaker current chopping mainly occurs?
Question 5
If the relay setting is 50% and CT ratio is 500:4 and plug setting multiplier is 10. What is the fault current?
Question 6
Consider the following statements regarding translay relays.
A) A single relay is not enough to protect the each set of 3-phase system.
B) More primarily this relay is used for feeder protections.
C) A single relay is enough to protect the each 3-phase set of current transformers.
D) It is a type of differential relay.
Which of the following option is/are correct?
A) A single relay is not enough to protect the each set of 3-phase system.
B) More primarily this relay is used for feeder protections.
C) A single relay is enough to protect the each 3-phase set of current transformers.
D) It is a type of differential relay.
Which of the following option is/are correct?
Question 7
The P.S.M of an over current relay is 1.2 and it is connected to a supply circuit through 1000/2 C.T. If the primary current of C.T is 1200Amps and its relay operating coil (ROC) has number of turns 144 . If the Plug setting is adjusted to 4A, then the no turns in the relay operating coil will be________?
Question 8
A relay at rating 8 A, 2.2 sec IDMT and having a relay setting of 130% TMS = 0.6. It is connected to a supply circuit through a CT ratio 400/5 ratio. If the fault current is 5000 A, the plug setting multiplier of the relay is
- 47 attempts
- 2 upvotes
- 0 comments
Oct 22ESE & GATE EE