Answer Posted / sennapparajan

Master trip realy is the main trip relay.The breaker will
trip through This relay only. in transmission &
disttribution line there are so many protection relays
like....distence relay overcurrent earth fault,
diffrential. All the relay'S contact will connet parelly to
master trip relay. if any of the protection rely sence the
fault... it will energise the master trip rely and the
master trip relay will trip the breaker.it got one more
name like lock out relay.

What is gain margin?

1021

---

Define load factor?

1058

---

As i want some model question paper in basic computer science and history please send me immediately sir

1831

---

how to test and calculat the head and discharge in borewell compressor

2114

---

what is the relation between knowing of the distance between power transformer and the capacitor feeder in case of parallel operation

1924

---

How to dimensioning SDCCH, LAPD and CS7 signaling on GSM?

2637

---

why starting current is high and resistance is almost 0 during the starting of motor dc motor...?

1685

---

what is the effect of change in supply frequency on load angle of synchronous motor,all other parameters remaining same?

2298

---

sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

2092

---

Why is voltage is required to be within permissible range for an electrical equipment?

1650

---

What are the types of excitation system?

1957

---

What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?

1952

---

How to confirm the Phase shifting Transformer VECTOR GROUP relation , as below ZNy11.45d10.45-ZNYy0.15d11.15

3209

---

EHV current carrying parts need to have smooth finish,then how can a 245kv GIS with emery finish can run so long?

1823

---

how to identify conection leads of an unknown electric motor

2064

---