Answer / Saransh Gandharv

Possible reasons for an NGR (Neutral Grounding Resistor) getting hot could include overcurrent, a short circuit, or excessive electrical load. Remedies might involve checking for and correcting any faults in the system, reducing the electrical load, or adjusting the value of the resistor if necessary.

In batteries after completion of charging which colour gas is emitted from it?

2 Answers   Essar,

---

Define the overload capacity of the motor.

3 Answers   Alstom, Maynilad,

---

Why we use a H.T. Fuse from a thick wire, on other side we use high rating of cables? & Why we use less Sq. mm Cable on H.T. side , on other side we use Large Sq. mm cable?

1 Answers  

---

Why in ESP Positive earthed

1 Answers   Sonhira,

---

what is diff kav & kvarh?

3 Answers  

---

Why the voltage n frequency of the incoming generator is kept slightly higher than d grid voltage n frequency while synchronization ?

4 Answers  

---

What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.

1 Answers  

---

Instead of single phase(220), if apply Phase to phase supply (eg: for lighting fixture). what will be the power formula? what will be the volt and current value? please explain me with some example.

1 Answers  

---

what is feed back and what are feed back amplifiers?

1 Answers  

---

what is the function and use of oil filled cables specify its advantages and disadvantages

7 Answers   Alstom,

---

Spacing of Transformers ratings are 10kva,15kva,25kva,63kva,110kva,150kva .........so on Q) Why transformer are not manufactured having ratings in between or other than these standard ratings ?

3 Answers  

---

Practical applications of series connected resistances? 

1 Answers  

---