Answer / guest

three phase meggering is three colors 1)Red,2)yellow, 3)
blue, and black is nutrel, and green is earth

Answer / jamil akhtar

three phase wiring may in star or delta. In case of star
red, yellow and blue wires will be phases and the fourth
wire will be called neutral, In delta no neutral wire is
present.

Megger is a measurement of insulation of winding/windings
with respect to ground or earth.

WHY CFL can't made in shape of bulb.

5 Answers  

---

why we are using panel space heaters in different control schemes????

3 Answers   Mecon,

---

How test for Ddo vector group test condition?

0 Answers  

---

why a pilot exciter is used in combination with the main exciter? why not only a main exciter is used for excitation to an alternator?

1 Answers   Electrical,

---

How to select the cable and voltage drop in circuit?

0 Answers   DEWA,

---

I am having dual speed motor of cromton greaves make of 3.7 KW -1400 rpm and 5 KW - 900 rpm. Please let me know groups and winding connction for rewinding purpose.

0 Answers  

---

how can we select the rating of Load break switch that is connected to the primary protection of 200 kva 11kv/415v distribution transformer?? step by step calculated answr pls...thnk.u

2 Answers   Maruti Suzuki,

---

wath is skin effect?

9 Answers  

---

Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?

1 Answers  

---

What are the different types of cable jointing methods for HT and LT power cable?

1 Answers  

---

How can we calculate the cable size??? plz give the formula !!!!!

3 Answers  

---

What are ampers.30kw motor.440volts.

5 Answers   Pam Glatt,

---