1.How to calculate backup time from series connected battery of 12v dc with 26Ah for 2battery?

3 Answers  

---

What are dcs and plc?

0 Answers  

---

simple way to find busbar sizes??

1 Answers   SPAC,

---

how many types of ct retio

3 Answers  

---

In what voltage EHT works(133/132/33/66kv?

3 Answers   Adhunik,

---

---

hi i will D.E.E.E.is completed pls send rrb diploma old qustion papaer sent in my e mail. i.d.

0 Answers   IIT,

---

how to select the rating of neutral ct with reference to transformer secondary current(in power transformer,stepdown tansformer,for example2000kva,11kv/415volt

2 Answers   ASD Lab,

---

why should we have to maintain pf in our site 0.9????????

3 Answers   Dalkia,

---

Define resonant peak?

0 Answers  

---

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

3 Answers  

---

A 230V, 60W bulb when connected to 230v supply what current and power will consume, if same bulb is connected to 200v what purrent and power will consume?

3 Answers  

---

what is power factor?

9 Answers   MAHINDRA,

---