How much sq,mm cable need for 800 amps load

2 Answers  

---

3 ph motor connected in star delta starter. when we start the motor it run in star but when in is going in delta it trips the main incoming supply. why?

3 Answers   Bajaj Hindusthan,

---

what is power factor ? how we can calculate the low power factor and amount of capacitor for improve that low factor ?

0 Answers   AB, JLL,

---

7. Why AC motors, AC bulbs etc... are donot operated by DC signals? and Why DC motors, DC bulbs etc... are donot operated by AC signals?

2 Answers   Bhel,

---

what is the effect of back reactive power on the generator ?

0 Answers   MRF,

---

---

what is a panel board?

1 Answers  

---

why series motor cannot be started on no-load?

6 Answers  

---

what does a k rating in a transformer means?

0 Answers  

---

WHY DOES NEUTRAL DO NOT CARRY EVEN THOUGH IT CARRIES RETURN CURRENT?

3 Answers  

---

What will happen when more than one star neutral points at same voltage level are connected to earth by metallic conductor?

1 Answers   TCS,

---

Sir pl provide 5 year sample paper for post junior engineer(electrical).I have currently applied for junior engineer (electrical) on RRB Ajmer

0 Answers  

---

explain different losses in a transformer.

0 Answers  

---