Answer / abhishek goyal

It may be reduce the acidic reaction at battery room. And
related to heat transfer application.

Answer / k.prakashchandra

To absorb the heat

Answer / nn duc

There is no requirement of coloured for bateries in
substation

Answer / vicky

Batteries play a vital role in of a substation by providing
dc power for protection, supervision and control of
substation and line equipment. Frequently, transmission or
distribution power will be lost or reduced in magnitude
during system disturbances (faults) at the same time that
power is required to isolate the disturbance from the
system.
To provide a continuous power, most substation use dc power
from batteries. These batteries can range in size from 50
Ahr at 24 V dc to more than 1000 Ahr at 250 V dc.

why weight is put on pulley?

1 Answers  

---

We all have seen transmission and Distribution lines In transmission lines the voltage is high and current is low(to reduce I^2r loss) and in distribution lines voltage is low but current is high however the size of transmission wires is bigger than that of distribution wires even though the amount of current carried by the distribution lines is more than that of transmission lines why?

4 Answers  

---

What are various impedence in any machine

2 Answers   Engineers India Limited, NTPC,

---

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

1 Answers  

---

WHY R USE IN BRUSH IN THE MOTOR?

6 Answers   L&T,

---

---

What are all the conditions to protect generator & turbine in thermal power plant?

1 Answers   Power Grid,

---

please send me RRB electrical engineer previous year questions for Sr. Section Engineer

0 Answers  

---

i have been tasked with a design of protection, metering and control(PMC) relay panel extension to accommodate all PMC relays.There is an already existing panel where this one will be built.What are the design aspects for this kind of project? thank you.

0 Answers  

---

how can we calculate that how much capacitor is needed for a system to increase the pf?

5 Answers  

---

where would be tap changer in transformer & why?

2 Answers   Kentz,

---

On a 6 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 42 AH). What Shall be the current rating of DC MCB ?

0 Answers   TNEB Tamil Nadu Electricity Board,

---

what factors to needed while selecting a MCB and MCCB

3 Answers  

---