# Why are detuned reactors required for APFC panels?

## Why are detuned reactors required for APFC panels?

Benifits of using detuned Reactors Prolongs life of PFC capacitors by reducing harmonic overloading with respect to voltage & current. Reduces amplification of system harmonics thereby restoring sinusoidal waveform. Reduce over heating of busbars, cables & transformer.

## What is meant by 7% detuned reactor?

If a detuned reactor is defined as 7%, it means that the reactance is 7% of the capacitor reactance at the fundamental frequency.

What is a detuned reactor?

Detuned reactors are used as power factor correction chokes. They create more defined network conditions by avoiding undefined resonance increases through attuning the series oscillator circuit to a non-critical frequency. Detuned reactors feature low inductance tolerance.

How do you calculate detuned reactor?

If we have a look in formula: Xc = 1 / 2¶fC and XL = 2¶fL which f is frequency of each harmonic order, we will find that if frequency is higher than 5 times, Xc will reduce 5 times and XL will increase 5 times. Now we know that impedance of 6% detuned reactor is 0

### How do you select a capacitor bank reactor?

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1. On the way to operate a capacitor bank, An actual capacitor voltage is increased by system voltage rise(Transformer Tap Control, Rise of voltage by Harmonics).
2. = 2292 ÷ 24000 = 2.185[Ω]
3. Present impedance ratio.
4. = 41572 ÷ 36.29 = 476182[var]
5. = 41572 ÷ 476000 = 36.3[Ω]

### What is the purpose of APFC panel?

APFC is an automatic power factor control panel which is used to improve the power factor, whenever required, by switching ON and OFF the required capacitor bank units automatically.

What is the function of detuned reactor?

Does capacitor bank consume power?

If you charge a capacitor, it will slowly lose its charge due to its internal resistance. The capacitor therefore consumes energy, but in practice it is negligible. Ideal capacitor does not consume energy. The capacitor will heat up if it is not properly sized according to the circuit requirements.

## Will a capacitor bank save on electricity?

The capacitor stores (otherwise lost energy/watts) and releases energy to your motor when needed to function properly. This reduces the amount of heat on the wires and the motors in your home or business. Reducing this heat will lower your electricity bill and increase the life of your motors.

## Why capacitor panel is required?

In electric power distribution, capacitor banks are used for power-factor correction. These banks are needed to counteract inductive loading from devices like electric motors and transmission lines, thus making the load appear to be mostly resistive.

What is a capacitor bank used for?