how work the differential protection relay in details?
Answer Posted / guru
The Differential relay works on the principle of difference
of current in primary and secondary circuits of a busbar or
transformer etc.,
Generally the PS Class cores of the CT is used in operating
the differential relay
| Is This Answer Correct ? | 8 Yes | 0 No |
Post New Answer View All Answers
direction of tarbine& genrator
defination of transistor controlled series capacitor
sir, what is the importance of Fault MVA. how to calculate fault mva of 33kv substation connected by 6.5 km line(single circuit with equal spacing) with 110/11kv transformer in 110kv susbstation.the fault mva on 11 kv bus in 110kv susbstation is 208mva.
How to decide and select the different earthing wire size for the different types of earthing
How we calculat the NGR of 3phase Generator, Our generation voltage 11KV
explain working principle of earth leakage relay
Explain Circuit Breaker Trip Characteristics in detail.
A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram
I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. Between alternator & breaker one stepup transformer used. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.
Type of motor stater detail and working detail
How can we calculate the KVA rating of a Distribution transformer from its core details?
could an induction motor be used for regenerative braking in electric-train control? in this type of application would some scheme have to be devised to obtain low synchronous speeds while braking? would induction-motor drive, therefore, be suitable for passenger service?
Yazaki india pvt ltd interview questions qurey related
what is mean by ideal infinite bus? why it is required to consider in fault short circuit calculations?
how to check avr of dg set of 125kva