what is STUB protection in tranmission system and switch
yard area?
- 9 Answers
- 71678 Views
- KSEB, Power Grid, I also Faced
- E-Mail Answers
Answer Posted / m.balaji
When the line isolator is in open condition in between ct &
line isolator protection is called stub protection.when the
line isolator open condition then only stub protection enable,
if it's line isolator closed protection it will not check
distance protection relay operation required voltage so that
without voltage it will not operate ,so that time going to
fourth stage of over current it will happen only at the time
of ct saturation (or) surge.
| Is This Answer Correct ? | 7 Yes | 6 No |
Post New Answer View All Answers
how to find number of run cable laying[LT side] for transformer & alternator secondary side? [above condition for getting output power transformer to main panel side] give the example.
What is meant by coupling capacitor?
Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.
What is A check, B check, C Check & D check for a diesel Generat
What is the difference between diesel generator engine with and without turbo charger with the same capacity?
in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?
What are the essential characteristics of signal flow graphs?
What is Anemometer used to measure?
What will be the current drawn by HT motor, if low voltage is applied.. any formula to calculate the LT amps of HT motor.?
I want to replace the 3 KW DC motor with AC motor so what should be the rating of AC motor? Details Of DC motor to be changed with AC are - Kw - 3, Vf - 310, If - 0.15, Va - 400, Ia - 13, RPM - 2400
Consider three heater bank connected in 3 phase star with neutral.Each heater bank connected in each phase.So each phase get 230 volts supply.my question is,during balance condition, current flow in neutral or Not
11KV AND 22KV NETWORK KW CAPACITY IN RING AND RADIAL?
Define phase cross over?
How to Prepare preventive maintenance shedule of machine tool.
What is advantages of VSCF wind electrical system?
