Answer / parveen

Reverse Power flow relay are used in generating stations's
protection. A generating stations is supposed to fed power
to the grid and in case generating units are off. means
there is no generation in the plant then plant may take
power from grid. to stop the flow of power from grid to
generator we use reverse power relay

Answer / ankush miglani 09718151073

reverse power relays are used to prevent the reverse power
flow to the generating stations so that in casse when
generation is off the power will not flow from grid back to
the generating system. it is unidirectional relay

Answer / d. kumar

grid power canected genration station.ther used revers
power relay.you shud be synch.TG to GRID that time synch to
grid. in case generation system off that time coming revers
power relay active.

Answer / username

actually the torque produced by the interaction of the two magnetic fields produced by potential coil and current coil of a reverse power relay is proportional to the product of voltage and current sensed by the relay and also dependent on the relative polarity of the two quantities, so under normal operating condition suppose torque acts in clockwise direction,then if only polarity of current changes torque created will be acting counterclockwise direction creating trip of the circuit breaker.

What is OLTC AND RTCC and it's function?

2 Answers   Sterling Wilson,

---

Can we connect CBCT in the Busduct

1 Answers  

---

what is a starter ??

2 Answers   NPTC,

---

WHY FLEXI LINKS ARE USED INBETWEEN GENERATOR TERMINAL OUTPUT & BUS DUCT CONDUCTOR.

3 Answers  

---

If we need 4c× 50mm sq cable but it's not available so we can pull 4c×25mm sq two cables?

0 Answers  

---

---

What is grid collapse? what is the reason for it?

0 Answers  

---

what is the calculation of power factor?

4 Answers   GATE,

---

what is the voltage between nutral and earth?

2 Answers  

---

PIU how does work?

0 Answers  

---

what is servo motor and how it works?

0 Answers   Godrej,

---

can a rotating machine give the DC output without commutator? if yes, how? if no, why?

6 Answers   BARC,

---

why the oscillator doent need the ac voltage??how can it produce the ac voltage by applying the dc voltage only??

2 Answers  

---