Why is tan-delta test and capacitor measurement done on alternator?

0 Answers   TD Power Systems,

---

What is the Polarisation index value ? (pi value)and simple definition of polarisation index ?

15 Answers   Essar,

---

what is the use of megger? and types

11 Answers   TNEB Tamil Nadu Electricity Board,

---

n1 =1000 n2 =?;v1 =200:v2 =400

1 Answers   APGenco,

---

how many joints are allowed in underground HT cable of 1 KM

0 Answers  

---

---

How to connect frequency meter in metering circuit?(single phase and three phase frequency meter)phase to phase or phase to neutral

7 Answers   ABB,

---

As a electrical engineer.. what are the basic norms should follow in transformer oil testing.. 1.What is the Electrode type? 2.How long time you will give for oil testing?

0 Answers   NAL,

---

WHY WE ARE DOING THE EARTHING IN A SYSTEM. SOME PEOPLE ARE TELLING FOR PROTECTION. WHAT PROTECTION GIVE ME THE CORRECT ANSWER.

2 Answers  

---

IN 1000kva transformer where the oil and winding temperature sensors is connected

0 Answers   Cushman Wakefield,

---

How much ampere rating on LT side of distribution transformer and also on HT side of 200KVA transformer

2 Answers   ABB,

---

where solid grounding and where grounding through ngr done and why?

0 Answers   NTPC,

---

I want formula to calculate cable size as per load given in kw & amp.I searched many sites but didn't right answer.Plz reply me asap.

41 Answers   Armco, BEL, BGS, Biocon, BRB Cable, Crystalline Chemical Industries, DLF, Doshion, Electrical, Gold Roof, L&T, Lanco, MEIL, Oman Cables Industry SAOG, PK Services, Polycab, Sabic, SLV, System Electrical, Tata Motors, UEM, UMIC, Vega, Vertex, Voltas,

---