what is the function of commutator in dc motor?

10 Answers   CTS,

---

what is slip rings in an induction motor&what is it's work.

4 Answers  

---

ups and invertor battery selection chart and full formula

2 Answers   APC,

---

15hp,380v,31amp,3-ph submersible motor run at 250v what is The temperature rise of submersible motor

1 Answers  

---

Why indicate only 440V to 3-phase supply.

4 Answers  

---

we want install 11KV generator to supply power 12km far from the power house.Load to be fed is 1MW.which conductor should we use and wat will be transmission line losses?

1 Answers   CEM Engineering,

---

What is DPR relay, And what for??

2 Answers   Engro,

---

What the formula for calculating no.of earthings & size of earth strip for 100mX90m shop.

0 Answers  

---

can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.

0 Answers   NTPC,

---

What is the latest generation of circuit breakers called?

3 Answers   Epitome, Focus Energy, Jakson, KDC, L&T,

---

do we people experience any shock if we catch any one of the three phases (R Y B)in air with out touching ground.

7 Answers  

---

I need a 33/690V Dry type transformer.How to select IP class for this transformer.This will be an outdoor transformer located in a highly polluted environment.

3 Answers  

---