Answer Posted / a.kossay

THATS BECAUSE IN GENERATORS THERE IS A TURBINE WICH CAUSE
ROTATION TO THE ROTOR SO WE ALREADY HAVE ROTATING ROTOR SO
THERE IS NO NEED FOR A ROTATING FIELD, AND IF SO IT WILL BE
HARD TO CONTROL THE SPEED OF THE FIELD

Briefing the effects of ASR and ACR of a double closed-loop speed regulating system.

2254

---

1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?

2551

---

Classify drilling machines.

1168

---

How do I calculate/select Droop CT ratio for various capacity of generators?

3658

---

What is relation between transmission lines & Communication lines ?

2201

---

When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?

2072

---

What size cable (based on voltage drop) is required to supply a 40 A three phase boiler if the wiring system is 75V single insulated cables installed in non-metallic rigid conduit 56m from the main switchboard? Voltage drop in the consumer's mains is 8V.

1982

---

What will be in Mahagenco Trade Test Exam? I want to know the same.

3698

---

What is the maximum No. of out going mccbs permitted from an LV distribution paqnel? What is the ampere relation between incomer and out going switch gears/mccbs?

2082

---

is there any chart showing the suitable cable size according to AMP and length ? for three phase motors

1399

---

how desiel generate sart fail of eb?

2204

---

Why control of DC motor is simpler?

2443

---

what is the function of choke in the flourcent tube lights and why the colour is in white mostly in flourcent tube lights

1941

---

What is meant by stator?

1224

---

What are the main advantages of generalized error co-efficients?

1178

---