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Reactors for Detund Capacitor Banks

A consumer whose load includes a high proportion of variable speed motor drives and/or
other harmonic generating loads may require a detuned acpacitor system.This would
perform the function of power factor improvement whilst preventing any amplifi-
cation of harmonic currents and voltages caused by resonance between capacitors
and inductances in the mains.
HENGYI offers single and three phase filter reactors for this purpose.The low-loss
reactors are made of specially selected transformer sheets and manufactured in flat or
round copper wire technology. They are dried and impregnated in a vacuum which ensures
they can withstand high voltages and maintain a long operating life.Depending on
their raged power,the reactors are provided with either terminal blocks or terminal lugs/
cables.
lf the operating temperature of 120℃ is exceeded, the reactor circuit is disconnected by a
thermal switch (included as standard).

Adjusted rating

The adjusted reactor is designed to create exactly the required output of reactive power,
allowing for the internal voltage rise inside the resonationg circuit formed together with the
capacitor connected in the circuit,Note that exact sizing of the capacitor is necessary.

Non-adjusted rating

The non-adjusted reactor is matched to a power capacitor with standard rating at mains
voltage.
The allows for additional installation of detuning reactors in existion nondetuned systems,
however,it will lead to increased output of kvar due to voltage rise inside the resonance circuit.