Answer / joshykollam

Method 1 . By Color red, yellow , blue
Method 2 . By a Fluke phase sequence meter
Method 3 . By winding lead notation- u1,v1,w1 and u2,v2,w2-
curresponds to R,Y,B in the case of a transformer or motor
The easy way to use Phase sequence meter

Answer / md ibrahim

phase sequense meter

Answer / b shelar

u can be find out easy to use dark-bright lamp method.

How to find the maximum load(in KW)in a big industry, having motors,lights,lifts etc..?

2 Answers   ME,

---

Necessity of transformer earthing

1 Answers  

---

what is the full form of MEMO? name of memo train.

6 Answers   BirlaSoft,

---

What is the safety factor is to be consider while selecting the switchgear and protection for electrical system

1 Answers  

---

which gas is cost wise high?

1 Answers  

---

---

Any one Give me formula for to increse the power factor, 0.8 to 0.95, How much the KVAr Required

9 Answers   Emerson, Rajshree Sugars, Siemens,

---

Is Indian railway uses 25000v ac or dc?

7 Answers  

---

what is the advantage of pwm pulse compare to squarewave pulse.

2 Answers  

---

How to calculate the KA rating for a circuit breaker if we know the KVA rating of the generator feeding it?

2 Answers  

---

Due to velocity saturation, MOSFET reaches saturation a.Before Pinch off b. After pinch off c. At Q point d. Before Q point e. After Q point

1 Answers  

---

Does human body can effect the electric shock when stand on Insulated material?

2 Answers  

---

calculation of knee point voltage of current transformer?

2 Answers   TATA,

---