What is the main cause of magnetism?

0 Answers  

---

what are advantage and disadvantage of zener diode?

2 Answers   Infosys,

---

How can make a star delta with Rstar delta feeder ( ( 4contactor & one timer ) pls answer with digram (power &control digram)

1 Answers  

---

what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?

0 Answers  

---

why indian power system having 11.22,33 KV ???

6 Answers   Titan,

---

How line capacitance & line inductance varies with increase in height tower.

0 Answers  

---

If we need4× 50mm sq cable but it's not available so we can pull 4×25mm sq 2cables

0 Answers   ABC,

---

how we check vector group dyn7

1 Answers  

---

What is the meaning of coupling and decoupling in the context of power flow?

5 Answers  

---

A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

0 Answers  

---

what is the physical phenomenon because of which skin effect occurs ??

6 Answers   Power Grid,

---

The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?

0 Answers  

---