What is battery Amphere-hour? How the battery back up time period is calculated?

2 Answers  

---

in a live circuit with a light bulb such that the bulb is off by a switch, is the light glows if the switch 2 terminals are both touched by a mouse?

1 Answers  

---

If Polarization index of motor 8.75 at 500volts of medium voltage 4.16 KV motor what this mean winding good or bad pl answer if any reffrence book give me the link

0 Answers   Marafiq,

---

Electrical Design specifications

1 Answers   Sabic,

---

what is meant by substation?

5 Answers  

---

i heard that power factor(PF) is the main concern for industries, if they are maintaining PF around 0.6 they will be fined for that. now the question is, how can they improve the PF ranging between 0.9 to 0.95 which is safe for them i,e escaping from the fine?

5 Answers  

---

Greeting to all members, How to calculate spill current when we have different ratio CT and Class for REF(Low Imp) I have 500/1A 5P20 @line side n 400/1A CL.X @ Neutral.

0 Answers   DEWA,

---

what is the current law ?

4 Answers   Aster, TCS,

---

What are the types of excitation system?

0 Answers  

---

why can't we increase the voltage by increasing the field voltage in order to get higher voltage.so that we can eliminate step up transformer

4 Answers   Bhel,

---

what is the use of excitation transformer in LAVT PANEL?

2 Answers  

---

How many capacitors using in LT panel as per Govt rules?

0 Answers   Electrical Tech,

---