Answer Posted / mostafaghodrat

No need to consider the efficiency of the motor

What is the effect of solar radiation on the design of an Isolated Phase Busduct?

2414

---

What is the basic principle of welding process?

2196

---

How convergengr of nr method is not dependent on selection of slack bus and how gauss siedel method depends?

1860

---

For a stable system, where should the poles of a system be in a root loci plot?

1286

---

Please brief working principle & construction of permanent magnet AC Servo motor

2285

---

what should be correct gas pressures to be a 1.5 ac unite

1555

---

7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?

2318

---

What is the resonant peak?

1233

---

Why Water motor is not taking a load or pressure while everything is correct. (Note: Motor running properly)

1457

---

why the protection turbo generators is most complex?

2094

---

What are different types of control systems?

1300

---

HOW TO CALCULATE EARTHING SIZING?

2240

---

how to handle 2500 kva transformar

1676

---

can we use engine degreaser for electrical motors?

1812

---

What are the material used for inductance coil?

1182

---