Answer Posted / nilesh murani

There is no any information found about OSR( oil searge relay)  is the mistly protective device in transformer. Any type of heavy spark occurd inside of transformer. And high vibration of oil cause this device will operate and it tripped breaker and it save transformer

Explain (in simple ) - root mean square. whats its role in electrical fundamandal.where its used

2458

---

1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor

4930

---

What is the difference between grid and off- grid system??

2000

---

working principle of oil startar

1961

---

what is magnetizing current test in power transformer

2817

---

Explain the working of variable frequency transformer?

1214

---

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

2273

---

The windings of a transformer are divided into several coils, because?

1334

---

What is dynamo?How it works and what is the function of dynamo in a DG.

2629

---

can anyone provide me a amf panel control wiring using ec-2 relay?

2386

---

What is miller crystal oscillator? Explain its operation?

1165

---

What are the types of windings present in the ceiling fan? What winding will be effective first when we started the fan?What are the resistance and inductance ratios comparatively at the initial speed and full speed of the fan?

3057

---

design a 3 bit synchronous and asynchronous counter using T- flipflop

2067

---

What are the advantages of the three-phase motor over single phase motor?

1161

---

DESCRIBEPNEUMATIC SYSTM OF ASH HANDLING PLANT

5598

---