Answer / k.prakashchandra

It is not easy to calculate with variable load.Fix energy meters

Which type of transformer used in lighting load?

2 Answers   IMFA,

---

What is the purpose of stablization resistor in high impedance bus bar protection

0 Answers   Jindal,

---

how electronic energy meter works?

2 Answers  

---

what's the meaning of the negative going half cycle in the circuit containing a bulb and a switch in series with a input ac source. i mean what happens in the -ve cycle. the dir. of current changes or any other thing. if dir. changes then why we use fuse in only phase wire.

2 Answers  

---

in case of three phase induction motor,when it is connected to three phase supply,why the magnetic field is rotets around the armeture?

5 Answers   Hindalco,

---

why the air gap is necessary in the transformer core

1 Answers   Eskom,

---

7. A resistance of 30 ohm is connected across 240v supply. If a resistance R ohm is connected in parallel with 30ohm resistor across the same supply, the current drawn becomes triple of original one The unknown resistor R is

2 Answers  

---

Why do we have 110V, 230V, 415V etc. in electrical transmissions? Why not 100V, 200V,400V?

4 Answers  

---

Why Magnetic Core Balance test is performed only on Star side of Transformer and not on Delta Side of Transformer (Vector Group Dyn11)?

1 Answers  

---

how to calculate the no. of earth pits required for an electrical installation?

1 Answers   Mepax,

---

why use generator Earthing/Graunding.

4 Answers  

---

In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???

0 Answers   RRB,

---