Answer Posted / sajin rajan

The resistance of human body varies from person to person.
the recommended value for ELCB tripping is 30 mA, more than
which can create a defibrillation in human heart.if u have
a single phase system (230v ac) then ur body resistance
should more than (230/30)*1000=7666 Ohms = 7.666KOHMS.

What is purpose of reactor?.What is different between line and bus reactor?

1952

---

I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?

2228

---

what is is the potential diffrence between two phase ?

6441

---

i want use the cable size 16cx4 core aluminium usege watts 240x2000w this cable size is correct?

2206

---

How phase displacement change in the over current relay coils.

2437

---

Write a note on Treatment for electric shock.

1926

---

what is negative d.c. voltage, why this voltage is used in base transciever station.

2163

---

what maximum range of star & delta in hp or kw ?

1706

---

What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.

2326

---

If there is major % of Voltage harmonics in the system, how can it be control or reduced?

2000

---

HELLO SIR, IAM PREPARING HPCL EXAMS. SO PLS SEND MATERIAL OF HPCL ELECTRICAL ENG..TO VIJAY_8888@YMAIL.COM

1871

---

Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?

1765

---

define hysteresis loss, eddy current loss and windage loss

2000

---

Explain Active power,reactive power,how its related to each other , & inductive ,capacitive.

1939

---

What are the three constants associated with a steady state error?

1226

---