Answer / k.prakashchandra

Generally V =voltage ,D = disc type ,G =IDMT ,T= trip
circuit ,C= current.Hence VDG may be under/over voltage disc
operated IDMTL relay.CDG similarly current relay.VTT could
be voltage operated trip circuit supervision relay.

What is the GNA & MNA in armature reaction of Dc Generator

2 Answers   Khetan,

---

What are the characteristics of negative feedback?

0 Answers  

---

For 132 KV line, PT or CVT which is prefered for measuring & protection? is there any IS or IEE standard available?

1 Answers  

---

Among the following Which is vector quantity? a. Flux b. permitivity c. flux density d. magnetic intensity

2 Answers  

---

What is the difference between the relay and the circuit breaker?

0 Answers  

---

---

why we are grounding the neutral?

1 Answers   GE,

---

What is power factor ?What are the benefits of improved power factor & how. Please explain with examples.?

5 Answers   ABB,

---

if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .

0 Answers   BSNL,

---

I would like to know that the fault curretn at base load and at 10% generation will be same? Fault level of BUS remain same with different generation?

0 Answers  

---

What is meant by earthhing of a magnetic flow meter and when to use empty pipe detection?

0 Answers  

---

can we use relay in fan?

0 Answers   NTPC,

---

when secondary volts is given how do we find primary volts, turns, amps of primary and secondary given???

1 Answers  

---