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

hi friends how 3 phase converter functioning ?what is working principle of rotory phase converter ?

0 Answers  

---

Why are transmission lines multiples of 11? Is it because of some historic reason ? Or is there a scientific base to it?

5 Answers  

---

which relay is better , instantaneous or IDMT relay .

2 Answers  

---

Can I use star delta connected induction motor for dual supply voltage?

0 Answers  

---

1000 W bulb takes 4.16 Amps at 240 volt then what will be the KWH & if i am using 1000 W bulb at 180 Volt the amps will be 5.55 then what will be KWH????????????????

2 Answers  

---

Brief working principle of fluorcent tubelight,function of starter & choke.

3 Answers   Havells,

---

if the load is 80 amp for main fuse and 100 amp for breaker so how can we calculate the cable size (cooper ) .

0 Answers   Bhel,

---

To transmit the Power which must be present…? a) Reactance b) Resistance c) Capacitance d) none of above

9 Answers   ABC,

---

What is PIR (pre inserting resistance) in 400kv EHV SF6 BREAKER? Why it use?

1 Answers   Adani,

---

how much load 15kva dg set can bear

7 Answers  

---

hi!!! i have a question that how the thermal test in winding temprature test is taken can anyone explain me in detail??? i will b very thankful!!!!

1 Answers  

---

230v AC & 230V DC which is more dengerous for getting a clectric shock between this two voltage?

5 Answers  

---