Answer / raj

Potential transformers are instrument transformers. They
have a large number of primary turns and a few number of
secondary turns. It is used to control the large value of
voltage.


WORKING:
The potential transformer works along the same principle of
other transformers. It converts voltages from high to low.
It will take the thousands of volts behind power
transmission systems and step the voltage down to something
that meters can handle. These transformers work for single
and three phase systems, and are attached at a point where
it is convenient to measure the
voltage.e.g:11Kv/root3/110v/root3 for delta connection.

what is v/f control in VFD?

0 Answers  

---

How electrical power(MW)is varied OF an A.C Generator in response to varying steam input to a steam turbine ?

1 Answers   Hindalco,

---

What is meant by Load Encroachment in OHL Feeder Protection?

0 Answers  

---

what is the difference in inductance and resistance.both oppose the flow of current but how.resistance having + ve power in both cycle while inductance having both power.

5 Answers  

---

what are the protecyion of transformer & generators

0 Answers  

---

what is the principle of motor

6 Answers  

---

What is BUCKBOOST TRANSFORMER and Operation of Buckboost transformer?

4 Answers   Voltamp,

---

What is the difference between MCB and Earth MCB? What is the working principal of MCB?

2 Answers  

---

What are the causes of eddy current losses?

1 Answers   Schneider,

---

What is Avg. Power Consumption of 2 TR Split A/C???How v can calc. this???

1 Answers   Emerson,

---

What motor is used in ceiling fans and what motor is used in table fan.? why table fan is costlier than ceiling fan?

6 Answers   Bhel,

---

what is the type of winding connection( star or delta) in 1HP to 5HP motors. How to check the motor winding connections( star or delta) if not provided in the nameplate?

5 Answers  

---