Answer / b .t rao

before going to selection of the conductor we should no
maximum load and voltage both are required.

The inexpensive way to improving energy efficiency of a motor which operates consistently at below 40% of rated capacity is by _____.

2 Answers   IFFCO, Sanmar,

---

it says in neutral wire current flows under normal condition, but when we put tester it wont glow, why?

7 Answers   HCL,

---

if a.c supply is given to the motor,, what happen?

0 Answers   Bhel, L&T, MSEB,

---

What is the meaning of Fault level rating?

1 Answers   Balrampur Chini Mill,

---

What is the Working principle of ELCB and RCCB?

1 Answers   Geo Miler, L&T,

---

what is the exact direction of current? as we know current travels from higher potential to lower potential,so if we take battery +ve to -ve implies current direction is from positive terminal to negative terminal.,whereas electrons flow from negative to positive as they are attracted by positive ions.current will be the plow of charge but not flow of positive ions.please clarify my doubt friends.

2 Answers  

---

I have two AC generators, the first rated 2680KVA for 380V/4345A/pf:0.7 and the second rated 3461KVA for 5500V/363A/pf:0.8. I want to parallel the two generator to a bus. The second generator passes through a transformer to down the voltage to 380V and a part of its power goes to another bus so that it's only a part of the total power of the second generator taht goes to the considered bus. I have two Basler DECS100 AVR regulator. How can I make the synchronization ? What others equipments must have ?

1 Answers   CST,

---

why single phase induction motors are not self staring ? how can we start the 1-phase Induction motor ?

3 Answers   BDL,

---

What is the use of IGBT in UPS & its working??????????

5 Answers   Reliance,

---

in case of transformer the power factor is depend on input or the output

1 Answers  

---

what are effects of harmonics in the three phase a.c power system ?

2 Answers   AIIMS,

---

what is the Maximum voltage range for single phase

4 Answers  

---