Answer / k.prakashchandra

Check the brushes ,as tripping is probably due to unbalanced
current if 2 OCR and EFR protection is adopted

Why does the DC voltage needed is less than AC needed to produce corona?

2 Answers   TATA,

---

If a shunt Dynamo has induced emf 100V and 0.4 ohm resistance and battery of accumulator of open circuit emf 110V and 0.5 Ohm resistance are in parallel what is common terminal potential difference?

0 Answers  

---

Why we use Carbon & graphite mixxed brushes in the DC motor?

6 Answers  

---

I find that underground strip-armoiured,4core,LT PVC cables in an earthed power distribution sytem are occasionly found in charred condition-with no trace of it except ash. Is this because of no proper earth connection/continuity (giving rising to high armour resistance)in the joint enroute or because of insufficient capability (again due to high armour resistance)of cable-armour to carry fault current or due to neglected /unprotected overloading of the cable or due to high armour currents caused by power thefts where only phase(s) are unauthorisely tapped & at the point of poer consumption earth terminal is established by burring underground a not so good earthing rod (or using an underground water pipe for the purpose)

1 Answers  

---

please explain how to do 'pole drop test' on generator?

0 Answers  

---

resistance of transformer oil=?

1 Answers   HCL,

---

What are the advantages and disadvantes of delta and star connections in transformers and alternators?

3 Answers  

---

when running 2 nos 450kva dg sets in parallel operation ,in one Dg set power factor and Kvar going to lagging and ampere suddenly going high,please give me suggestion to correct the same.

2 Answers  

---

What is the role of Tertiary Winding in Transformer ?

2 Answers  

---

what is the difference between "Rotary bypass isolation switch and Normal bypass switch" pls share indepth techs?

0 Answers  

---

As a good company employee, can you report your supervisor to the company management if he or she is going against the company interest in his or her actions?

3 Answers  

---

what is used root two in single phase line?

1 Answers   DVC,

---