Answer / subrat

The function of a trip ckr supervision relay is to check
the healthiness of trip coil of a ckt breaker

Answer / re

The function of a trip ckr supervision relay is to check
the healthiness of trip circuit and trip coil of a ckt breaker.

why transformer is giving some humming noise .....?

11 Answers   Electrotherm, JSW,

---

how to find three phase complex power in per unit and MVA?

0 Answers  

---

What is the most accurate way of testing ELCB?ELCB is better than RCD?

0 Answers   GECO,

---

We have Diesel generator of 200KW. fuel consumption is always same,even connected light load or full load. Is it right?

0 Answers   ARDE,

---

how we decide the require size is this for a known current at fuu load?

0 Answers  

---

---

For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel

0 Answers   Ecil,

---

why nearly all voltages are in the multiples of 11?

5 Answers  

---

please send me privious exam's queation papers of section engineer(electrical).

0 Answers   RRB,

---

describe the A.C. Generator Testing procedure

0 Answers  

---

What will hapen if we run generator below 47.6hz frequency?

9 Answers   TATA,

---

What do you mean by PT-100?

8 Answers  

---

In a simple spur gear train, gears with 24, 48, 32, 72 and 96 teeth are in sequence. The gear with 24 teeth runs at 900 rpm. The speed in rpm of gear with 72 teeth is

1 Answers   Caterpillar,

---