Answer Posted / duraiarasu

TO FIND RESISTANCE OF MOTOR

K.V + 1 = MEG OHM

How to reduce the static electricity producing in solvent room? By P.D.Patil BioCon

2058

---

what is the main difference between power devices and signal devices

2171

---

what is automatic voltage regulator?we can control the vlotage by using fuzzy controller in matlab?why we go for fuzzy?

1941

---

What is speed mode?

1689

---

Can any body tell gulf interview question for experienced electrical engineer ?

2096

---

how mass curve differs from hydrograph.

1763

---

what is a composite error in current transformers, why occurs & in which it will occur i.e, either metering ct/ protection ct

1832

---

What are the different towers used in 132kv transmission line? what are the differences between the P,R,S towers used in 132KV and detailed explanation

1902

---

what is the maximum permissible limit value of leakage current and leakage counter reading to replace lightining arrester?

5116

---

Is it posible to instal one more SMDB from the existing SMDB and is it practical.

2073

---

Explain about p.t?

1061

---

Can we Co-ordinate relay in Load Break switch?

1946

---

Give some example of fault limiting devices?

1336

---

My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I -    is the value of AC fault current. t -    is the operating time of disconnecting device in seconds. K –  is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.

1857

---

EXPLAIN THE ESSENTIAL FACTORS WHICH INFLUENCES THE CHOICE OF SITE FOR A HYDRO ELECTRIC POWER PLANT

2238

---