Answer / k.prakashchandra

Earth leakage relay is for very small currents in low
voltage system.

when we have to use UPF wattmeter and LPF wattmeter? what is the difference between UPF and LPF wattmeter in terms of construction?

4 Answers  

---

how many mega ohms insullation of the cable can't be use when testing with megger tester for Low voltage cable 240V use?

3 Answers  

---

When semiconductor fuse does save thyristor in each cycle of conduction? Why under voltage setting keep less in SPRS and more in DC drive?

0 Answers  

---

In a tap changing transformer where is the tap connected, is it connected in the primary side or secondary side?

0 Answers  

---

I have a current transformer with 1 main reading meter with transformer outside the building and a control panel having 5 CT reading meters with black round coils inside the building. I want to know, A) when current pass through the Transformers, will the current be reduced or be the same and after that B) when current pass through the CT meters with black round coils, will the current be reduced or be the same. C) in the above process will the reading of the main meter be same or different, from the total reading of all the 5 CT meters.

0 Answers  

---

---

if transformer winding burn on dc supply then why not alternator rotor winding please post answer on y.sakhare@rediffmail.com

4 Answers   MahaGenco,

---

IF we have 500kva transformer 11.0/0.415V, 50Hz. How to calculate the current on HT & LT side, how can we consider for its breaker (HT & LT both)? You are requested to solve the question herewith.

3 Answers   Bhutan Power Corporation,

---

what is the use of breather in transformer?

4 Answers  

---

Can an inverter be used as a converter? How?

0 Answers  

---

why mostly conductor made by 7 nos wire?

1 Answers  

---

What are the advantages of DOL starter?

7 Answers  

---

WHY IN AC DRIVES,INPUT PHASE CURRENT SHOW UNBALANCE?

0 Answers   Adhunik,

---