Answer / k.prakashchandra

TJM IDMTL relays are over current relays

Answer / abdurahman

Actually all the measurment is carried out by CT irrespective of load current or Over current. Relay is only acting as per CT out put secondary current. TJM10 relay is Normal inverse IDMR Over Current relay, whic can act for over current and Earth fault.

why do we generate only 3ph ac?is it possible to generate 4ph,5ph,....?

6 Answers   Accenture, Bhel, Reliance,

---

why making capacity is more than breaking capacity?

14 Answers   Essar, Indo Asian, Infinity,

---

what is the soft starter principle? how is connection diagram? what is the procedure for checking the connection?

0 Answers   Siemens,

---

what is real and reactive power?

2 Answers  

---

Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.

0 Answers  

---

---

why we use star and delta connection?why we donot give the supply directly?

12 Answers   Hitech, Siemens, Tata Steel Limited,

---

why motors are rated in HP?

3 Answers   HCL, ncpl,

---

when the supply of MSEB is cut off & all the load of the industry is driven on generator at that time the capacitor which is connected in industry for power factor control is switched off why?

1 Answers  

---

how fan speed decrease or increase by using regulator? thank you

3 Answers  

---

If I have 3 essential main switch board and 3 incoming electricity ,but only 1 genset running is that possible.

0 Answers  

---

A 400KVA Transformer has 400Hz frequency.if frequency is changed to 50Hz,then what will be the new KVA rating?

2 Answers   ABC,

---

what is power factor

5 Answers   Exide,

---