Answer Posted / ayman

Switch Fuse Unit . It is made of power fuse (80,250,400A)
and switch which can be operated from outside using extend
rotary handle to rotate the shaft which is inside it .

what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator

1985

---

HOW TO CALCULATE S/C,O/C,E/F OF ACB.

2525

---

1.main parts of generator? what is used A-check,B-check,C- check? 2.what is FM200 system in data centers? 3.difference between pac,ahu?

2079

---

i completed my DEEE. and i want to electrical c license. how to get it..?

2097

---

WHAT IS THE WORKING PRINCIPLE OF A GENERATER.how is a GTG (Gas TURBANE Generater) working.plz explane

2469

---

Why and when NGR panel required. Is it necessary to design a NGR panel for a 6.6kV Alternator paralleling with Grid????

2699

---

Why field rheostat is kept in minimum position while armature rheostat at maximum position?

1046

---

what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?

1848

---

What is the principle of HIGH SPEED DIRECT DRIVE MOTOR ?

1946

---

Differentiate between Zero and Negative sequence current

1860

---

Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above

2162

---

What is Primary And Secondary Injection Test of Relay and Other Electrical Devices. How IT is carried out.

3434

---

Define damping ratio.

1186

---

What will be the impact on motor performance if a LT motor is rewound with changed motor winding data as given below:- Original winding data: total 04 wires = 02 wires of 17 SWG + 02 wires of 16.5 SWG. Changed Winding data: total 03 wires of 15.5 SWG wire size Motor rating: 160KW, 740RPM, 415V, ID FAN application. Normal Running Current = 95% of FL Current.

1965

---

How each of the following losses occur in d.c machines (i) copper (2)core (3) windage (4)friction please help me

1976

---