what is meaning of sympathetic tripping with respect to relays and give the values for current carrying capacities for copper and aluminium cables from 16sq mm to 500sq mm

1 Answers  

---

plz tell me in detail about c.t. and p.t. ?

3 Answers   Reliance, SCL,

---

is it possible to flow currnet between earth and nutral wire in a circuit???

2 Answers  

---

why transformer rating is expressed in kva.

4 Answers   Electrosteel, L&T,

---

What happen if in three phase 440 v , when you check voltage by testor it glows except one phase and in the same time when you check by multimeter it shows 440 v in any two phase.what will be the reason...

1 Answers   Greatship,

---

What is difference between start imitation and start interlock for 3 phase motor protection ?

0 Answers   Siemens,

---

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

0 Answers   Schneider,

---

Will transformer heating be approximately the same for resistive, inductive or capacitive loads of the same VA rating? Explain.

1 Answers  

---

PLZ EXPLAIN CORONA,SKIN,BIRD PALE,SPAN,SAG Effects of power cable.

0 Answers  

---

What is the different between Earthing & grounding?

1 Answers  

---

What is difference between slip rings and carbon burushes?

2 Answers   Hyundai, IVRCL,

---

What is the Temperature to be set in Thermostat provided in Marshalling box of the Transformer / Motor.

0 Answers   Kirloskar,

---