Answer / snowwhite10

numerical relay is a microprocessor based relay ...it works
according to the program written using microprocessor.

Answer / naresh nari

numerical relay is a relay which is operated on the bases of numbers.that numbers are coded in the program for the relay operation.hence it is operated depending on the time delay i.e number of cycles per second

what is meant by slip & where its occur ?

5 Answers   Lanco,

---

In ACS 1000 drive we used 12 pulse convertor.Why dont used 6 pulse or 3 pulse convetor

1 Answers  

---

What is the form name of 'c' license, I want to download in web

0 Answers   BMM, Ceebros Hotels,

---

what happen when power factor of 2 parallely operated transformer become equle?

0 Answers   Flextronics,

---

inductance and capacitance may result in periodic reversals of the direction of energy flow,how???

1 Answers  

---

Can any body tell me about INNER SHUNT COMPOUND MOTOR diagram?

0 Answers  

---

why the field winding of synchronous machine is excited by dc source

2 Answers  

---

What is phase cross over frequency?

0 Answers  

---

if we look on phasor of the transformer vaoltage is 180 oppsite at primary and the secondary so to improve a power factor is secondary should kept negative to improve it primary side means is -.90 became +.90 at other side

0 Answers  

---

which braking is used in traction motor and what is its working send at mukeskumar27@hotmail.com

2 Answers  

---

draw waveform of capacitor or inductor in a d.c ckt(during transient) with zero resistance with it(in series or parallel)also neglect resistance of wire

2 Answers   L&T,

---

what is meant by VFD ?where its useful ?

7 Answers  

---