Answer Posted / minal

It is used to measure voltage, current & power of a circuit.
As it measures three components so it is called trivector
meter

In power transmission using open belts or horizontal shafts it is preferable to have the slack side of the belt on the top because

1205

---

where lt & ht capacitor used

2209

---

I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?

1728

---

what is lumped and distributed elements?

1934

---

Explain about 3 phase motor fault current calculation with examples?

2924

---

Why hydropower stations are preferred solution for meeting peak loads in grids?

979

---

please forward me the type of questions which would rise while me attending to 33KV Electrical License to my mail ID:vadrevu_raghava@yahoo.co.in

1994

---

What kind of maintenance is conducted for Transformer

2261

---

Why current shoots up in the secondary on the knee point voltage during saturation test of CT? How core saturation effects the secondary current (while the primary side is open)? What the logic behind this?

1986

---

How to maintain ac plant?

1933

---

what is cascade speed control device?and how this device control the speed of motors?

2134

---

What is an ideal transformer?

1138

---

I AM GOING TO ATTEND APTRANSCO ON 26TH OCT 08.PLEASE SEND ME ANY MATERIAL OR TYPE OF QUESTIONS OR EXP QUESTIONS.

1938

---

WHY BREAKER ARE USED IN SUBSTATIONS?

2220

---

how meger function

2864

---