Answer / k.prakashchandra

Differential relay compares the correspondig currents of
the same phase on both sides,where REFR compares the
unbalanced current of the phases with the current in the
neutral

At no load the PF of an alternator -Zero -Zero Lagging -Zero leading -None of the above

2 Answers  

---

How much earthing require for h.t.22 k.v. cable in coming side & out going & 22 lighting arrest or,22 k.v.D.o. & A.B. switch.

1 Answers  

---

what is the diff. b/w restricted earth fault relay & standby earthfault relay and where they are used?

4 Answers   KSK Energy, Reliance,

---

A system absorbs 100 k J of heat and the increase in its internal energy is 100 kJ; the work done is

0 Answers   Caterpillar,

---

Why one can experience electrical Shock due to Voltage or Current?? or both voltage or current??

11 Answers  

---

whats the necessary to correct the power factor using capacitive banks in industries?

2 Answers  

---

54 Comments Alok and Bhanu play the following min-max game. Given the expression N = 38 + X*(Y – Z) where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be?

0 Answers   Bajaj, TCS,

---

HI....HOW CAN BE MESARED THE VALVE OF NEUTRAL GROUND RESISTOR WHIC IS LOCATED AT SWICHGEAR ON GENERATOR SIDE....

0 Answers   Jindal,

---

what is power factor

3 Answers  

---

What is ZCT? it operating principle and how is work with RCCB (residual current circuit breaker)?

4 Answers  

---

Why does the DC voltage needed is less than AC needed to produce corona?

2 Answers   TATA,

---

At light load transformer efficiency is less because A secondary output is low B transformer losses are high C fixed loss is high compared to output D copper loss is small

1 Answers  

---