Answer Posted / mohammed motawe

i will give you the basic eqaution,

PL = V*I*Pf=S*Pf ; i need to calculate the load current ,

I= PL/(V*Pf); as per ADDC(abu dhabi electricity), Pf=0.9
V=230 volt,

From the load CURRENT i can choose the rated current of
cable, take into account the voltage drop, so refer to
cataloge of any cables and wires company like oman cables

regarding with three phase just put cu(3) in the equations
best regards

advantages & disadvantages of Lagging and leading power factor .

9627

---

what is mean by restructuring power system?

2070

---

How can we decide cable size from HT panel to Transformer? Please give you reply with some examples.

2222

---

working principle of AC Servo Motor with its construction

8884

---

how can i reduce sparking without stepdowning the voltage

2531

---

Why arc quenching is used in Diode ?

2160

---

what will be the maximum winding temperature of 6.6kv HT motor 450kw, Full load current 49A. 50Hz Frequency.

3246

---

can u tell me the promotion from oiller to enginer

1945

---

In the ACB breaker capacity is 2000Amp but this each phase taken 1250 But total beldibg load is 600amp or 700amp watt is the problem

1964

---

Is it possible to operate a synchronous 2-poles turbogenerator with a still-in-place faulted bar but electrically disconnected ???? If yes, should I act on the other phases as well ???

1978

---

Define the term factor of inertia.

2113

---

An automatic water heater is an example of which type of control system?

1168

---

Why 30kw 40 hp 4 pole 3ph induction motor over heated?any steps on reduction in heat?

1677

---

what is control supply rating of a machine

1990

---

I have 440v power coming to facility,( not being used ) can I buy large generator, (gas) to sell power back to electrical co.

2460

---