Scribd
Upload
19 views3 pages

Ferranti Effect

The Ferranti effect occurs when the voltage at the end of a long power line is higher than at the beginning, typically due to low electricity usage at the receiving end. This phenomenon is caused by the capacitance of the power line, which can store electrical energy and lead to increased voltage. To mitigate the risks of excessive voltage, shunt reactors and voltage regulators are used to maintain safe levels.

Uploaded by

soothingsounds755
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
19 views3 pages

Ferranti Effect

The Ferranti effect occurs when the voltage at the end of a long power line is higher than at the beginning, typically due to low electricity usage at the receiving end. This phenomenon is caused by the capacitance of the power line, which can store electrical energy and lead to increased voltage. To mitigate the risks of excessive voltage, shunt reactors and voltage regulators are used to maintain safe levels.

Uploaded by

soothingsounds755
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 3

What is the Ferranti Effect?

The Ferranti effect is when the voltage at the end of a long power line is
higher than the voltage at the beginning of the line. This usually happens
when there isn't much electricity being used at the end of the line.

Key Ideas

1. Power Line: The wires that carry electricity over long distances from power
plants to your home.
2. Sending End: The start of the power line where electricity comes from
(power station).
3. Receiving End: The end of the power line where electricity is used (your
home or a substation).

Why Does It Happen?

1. Capacitance: Long power lines can store electrical energy like a battery.
This storage ability is called capacitance.
2. Light Load: When not many people are using electricity at the receiving
end, the power line's capacitance can cause the voltage to rise.
Simple Example

Think of a garden hose:

 When water (electricity) flows through a hose (power line) and you have a
nozzle at the end (receiving end) that is mostly closed (light load), the
pressure (voltage) builds up more at the nozzle (receiving end).

What Can Go Wrong?

 If the voltage gets too high at the receiving end, it can damage electrical
devices.

How Do We Fix It?

1. Shunt Reactors: These are like sponges that absorb extra voltage.
2. Voltage Regulators: These devices make sure the voltage stays at a safe
level.
Expression:

You might also like