Answer / k.prakashchandra

To test insulation , you build voltage across it continuously over a period ,which is possible with DC only

Why the Transformer Nuetral is grounded?

10 Answers   Infosys, Khartoum Refinery,

---

I HAVE A INCOMING 100A MCCB TPN 25KA, CABLE LENGHT OF 80M 70MM CABLE SIZE FROM MAIN SUBBOARD TO NEW DB.BASE ON THE FAULT LEVEL SETTING OF 45KA.I WOULD LIKE TO FIND OUT 25KA ENOUGH KA. APPRECIATE IF SOMEBODY CAN ASSIST ME WITH FORMULA FOR THIS. FRM: JEFF

0 Answers  

---

WHY IS THE SIZE OF HOLE OF THE EARTH POINT IN THE PLUG POINT BIGGER THAN PHASE AND NEUTRAL

7 Answers   Jindal,

---

How much should be the load percentage for 15kva Inverter and Iinut & I output load with Calculations

0 Answers   IBM,

---

defined power system?

3 Answers   Spanco,

---

---

we often use the word HT (high tension) line.or we say HT switch gear, whats does HT basically mean. is it different from high voltage.

1 Answers  

---

What is meant by load angle of an alternator? Upon what factors does the load angle depend?

0 Answers   VECL,

---

my b-tech percentage is 50%. what answer will satisfy the hr ?

0 Answers   Wipro,

---

what is the contact resistance of sf6 circuit breaker??

2 Answers  

---

why we test the core balance of the transformer?

1 Answers   Siemens,

---

A 230V, 60W bulb when connected to 230v supply what current and power will consume, if same bulb is connected to 200v what purrent and power will consume?

3 Answers  

---

a solar energy installation utilizes a three phase bridge converter to feed energy into power system through a transformer of 400v/400v.the energy is collected in a bank of 400v battery and is connected to converter through a large filter choke of resistance 10ohms.1.the maximum current through the battrey will be.2.the kva rating of the input transformer is.

1 Answers   GATE,

---