Answer / prakash g.r.

Current transformer is a instrument which measures current
only for measurement as well as protection. CVT is a
instrument which reduce the high voltage signal into low
voltage signal for protective relays.CVT also used for
measuring high voltage and further used for communication
system (ie) carrier communication

Answer / s.logalingam

current transform is measure the current of line. voltage
transformer is measure the voltage of two point of line.

how do you measure earth leakages in 3phase wires?

2 Answers  

---

how can we say that stator magnetic field rotates with synchronous speed?can we derive?

0 Answers  

---

what is the function and use of oil filled cables specify its advantages and disadvantages

7 Answers   Alstom,

---

bit confused - am i correct in thinking that to determine line to line voltage in a star config 110v 3 phase 4 wire distribution system i would use a voltmeter? I have a circuit configured as an unbalanced load, consisting of three incandescent lamps (1x40w, 1x60w, 1x100w - all 110v rated)connected in a star configuration to a 110v 3 phase 4 wire distribution system. I want to find out what types of meters i would use to obtain: a) each line to line voltage b) the line to neutral voltage across each load c) current flowing in each line and load d) current flowing in the neutral conductor e) power supplied to the loads im assuming i would be using ammeters in series along each line and voltmeters in parallel across each line to neutral? Also how could i predict these meter readings before taking them and with which formulae? Any help would be greatly appreciated A.

1 Answers  

---

types of central Air conditioner plant?

0 Answers  

---

how much percentage set in transformer diffrencialrelay

1 Answers  

---

Why thwe Direction of Rotation of a TABLE Fan & CEILING Fan are different?

8 Answers   Wipro,

---

what is VSWR?

1 Answers  

---

draw the full wave and half wave circuit of 3 phase system and inverter circuit used in ups 

0 Answers  

---

it is clear that volts equal to the current as per ohms law. is it appliable to the AC power or only for DC. if it is appliacable to AC in transformers when voltage increases the voltage decreases ????? why??????????????

13 Answers   Bhel,

---

how to check the LRS resistance .......................

1 Answers  

---

Why overhead transmission line in triangular shape?

2 Answers  

---