Answer / k.prakashchandra

Tap votage is from the battery in 75-80% position so that
this volage is equal to the normal (float charge) voltage
of the battery set, when boost- charging is going on ,so
that DC supply voltage to the appliances is not as high as
boost voltage which could be 30 % more than the rated
volage of the battery set

Answer / prasanta kumar das

During boost charging total set of battery set on high
voltage charging.To save the 220v DC connceted system from
above boost charging voltage,a tapping done from the 80%
cell,from where we can get 220v DC.

Answer / mohammad farman khan-abu dhabi

to boost up the power

How can we increase the capacity of exixting capacitor bank??????????????? PLS. Help

1 Answers  

---

what is power factor?

3 Answers  

---

On the transformer breather at what length should i change my sililca gel.

4 Answers  

---

please let me know , we have installed two separate motor for fire fighting system 1) 60 hp and 2) 15 hp the load is 74 AMPS and 20 AMPS then tell me the main power cable in Aluminum will be what thickness , the length is 225 mt from the main utility to fire pump house

1 Answers  

---

why star connected transformers used in tneb?

1 Answers  

---

what is resticted earth fault protection ? how did it protect & work in power transformer

3 Answers  

---

What happens to voltage when current through the inductor is constant?

0 Answers  

---

if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.

0 Answers  

---

Please clarify 1. Icw: rated short circuit working withstand capacity 2. Icu: Rated ultimate breaking capacity 3. Ics: Rated service short circut withstand capacity 4. other specification of ACB

0 Answers  

---

WHY WE USE SIEMENS plC

3 Answers  

---

Sir I want questions for rrb sec technician gr III (electrical)

1 Answers   RRB,

---

Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?

1 Answers  

---