How to select batteries required for ups and the inverter if we Known load? And how AH is selected of battery?

0 Answers   Vodafone,

---

How do you reverse the direction of rotation of a FAN?

13 Answers   CPCL, IOCL,

---

1.what is difference between line,neutral and earth 2.IF single phase voltage is 230v ac and what should be the voltage between line to neutral,neutral to earth and earth to line

1 Answers  

---

How to convert 110 volt alternating current to 12 volt direct current

2 Answers  

---

What are the roles and responsibilities of electrical engineer in cement plant

0 Answers  

---

what is sloop? what is meen LLB in and difine?

0 Answers  

---

WHY WE CAN GENERATE POWER IN 3PHASE MODE ONLY NOT IN 4 OR 5PHASE

18 Answers  

---

define reactive power?

3 Answers   Alstom, TATA, TCS,

---

Why Dyn11 Transformer is selected for distribution transformer?

3 Answers   JK Associates, MSETCL Maharashtra State Electricity Transmission Co Ltd,

---

I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?

0 Answers  

---

how to calculate unit consumption on 3phase 380-415 v0lt kilowatt motor eg ( 55kw,380v,3phase 50-60hz)

1 Answers  

---

why ohms law does not obey semi-conducters?

2 Answers  

---