What is the formula to calculate distribution transformer De-rating on iron losses basis

1851

---

What are reasond for high wattage in single phase induction motors

1900

---

in a solar power plant,we are going to step up the voltage 350V to 33kv, and to 132kv GSS. i want to ask that if it is possible that 315v/33kv is not possible because we also use 315v/11kv. or it should be 415v/33kv? is it effects generation or losses?  the second question is-generation is depends on LV winding? or LV winding design for generation voltage?

1742

---

why current is constant on d.c?

2094

---

what will happen if frequency is below 50 hz?

2029

---

distribution transformer de-rating formula on over limit iron losses  

2309

---

I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com

1813

---

please send me RRB electrical engineer previous year questions for Sr. Section Engineer

1957

---

What technology is used in latest generators?

2096

---

How much ph is maintained of water resistance starter for slipring induction motor ?

2412

---

standard earthing rating for power line..

2131

---

Comparision of Air break circuit breaker, SF6 Circuit breaker and vacuum circuit breaker.

2372

---

Is the installation of the filter cloths necessary before spreading the gravels at the transformer yards?

1947

---

How to megger test 11 kV cable and the acceptance IR value

2984

---

how to calculate the battery AH

2756

---