Answer / k.prakashchandra

Potential free means 'zero potential' ,not connected to any
power supply

Answer / vels

potential contacts means the contacts are connected with some potential we cannot use our the contacts
whereas potential free contacts means it is not connected with any potential we can connect/use as per our requirement

What is the equipment used to control the generator output?

4 Answers  

---

how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size

0 Answers   Tyco,

---

why we dont store the ac power in battery?

1 Answers   TCS,

---

why the inserting resistance in wound rotor induction motor decrease the starting current and increase the starting torque

2 Answers  

---

how to save the power?

2 Answers  

---

what is the minimum clearance between a 11KV 150KVAR capacitor cell and series reactor.can a series reactor can be mounted in the same structure of the capacitor cells structure

0 Answers   APTransco,

---

What will happen if mains neutral and generator neutral shorted?

2 Answers   Betts, Suzlon,

---

what is the diffrence between mcb &elcb?

2 Answers   Kahramaa, Synergy,

---

How much duration I can keep open the CT if it is under loading condition(100 Amp load)?

3 Answers   Infosys, NTPC, Suzlon,

---

Why transformer rating in KVA? and Generator also?

6 Answers   Bhel, IEEE, Toyo Denki, Toyo Engineering,

---

Does voltage and current can be seperated?

2 Answers  

---

what is the similarity and difference between ups and inverter?

4 Answers   GMR,

---