Answer / bl meena

mag. current is tested to see whether all the 3 phases are
properly magnetised or not.If any phase is taking a higher
current then it could be said that in that phase some
conductors are short,So it's better that during this test
variac be used to apply the voltage,one should slowly
increse the voltage or just on-off the multimeter used to
see the quick response,if current is quickly incresing use
variac,to protect the multimeter.

What is the difference between MCCB & ACB Where it can be used

5 Answers  

---

which motor is used in watch..??????

3 Answers   Bhushan ITI,

---

rrb question

0 Answers  

---

In industries Power factor is maintained by installing a suitable KVAR bank, How is the PF maintained for domestic use, where is the capacitor bank connected

3 Answers  

---

What is bus-bar?

1 Answers  

---

what is (+) and (-) in generator field detector stand for?

0 Answers  

---

power generation unit kw/hr or kw/day ?? please answer me engr_kalam@yahoo.com

3 Answers  

---

how to identify conection leads of an unknown electric motor

0 Answers  

---

what is the main difference b/w contactor and relay

2 Answers   Pace Pharmaceuticals,

---

can any one tell me about the Extra low voltage systems?From where we give supply to these type of systems??

0 Answers   MCB,

---

How you calculating the current for a 2.5 Sqmm cable. A 30 Hp 3 phase AC motor of power what size of cable is used for this motor.

7 Answers   Siemens,

---

what's mean by Transient stability analysis?

1 Answers  

---