Catalogue of equipment:
ELEKTON-Active Power Filters for VSD

Purpose and application

The increase of higher harmonics in power circuit are caused, first of all, by the wide use of converting equipment.

The Active Power Filters is the most effective way of elimination of the higher harmonics.

The Active Power Filter represents a controlled current source connected in parallel with loading, generating higher harmonics.

The Active power filter generates the same higher harmonics but on opposite phase to the load, ensuring that only the first harmonic current - 50 Hz is consumed by the load.

The power factor is adjusted through accumulation of reactive energy by the filter during the first half of the period of voltage supply and returning it to the mains during the second half of this period.

The active power filter “ELEKTON” is designed for the suppression of the high harmonics (current and load) from the VSD and for the compensation of reactive power consumed by the load.

ELEKTON filter is connected between the substation transformer and the VSD input. No special settings or adjustment is necessary.

SPECIFIC FEATURES

• Three-phase current higher harmonics compensation up to the 40th harmonic.
• Low power losses (3...5% of rated load power).
• Built-in electronic overload protection.
• RS-485 port for communication with remote telemetry units (RTU).
• USB port for connection a standard USB flash drive.
• ELEKTON-10.1 controller displays spectral composition, voltage waveform distortion factors, power current and load current.
• Archiving.

Specifications

Filter type	Rated operating current, A*	Maximum load current, A**	Weight, kg	Overall dimensions, mm
ELEKTON-FSA-100/250	100	250	290	1845х840х830
ELEKTON-FSA-160/400	160	400	420	1990х950х905
ELEKTON-FSA-250/630	250	630	440	1990х950х905
ELEKTON-FSA-400/1000	400	1000	492	1990х950х905
ELEKTON-FCA-630/1600	630	1600	890	2016х1204х1603

* - maximum higher harmonic current value applied
** - maximum current consumed by ELEKTON-05 VSD operating in PWM mode.
*** - provided that the voltage waveform distortion factor without the use of a frequency converter is less than 2%, and the filter operates under the rated load.

The rated operating current of the active power filter determines the maximum compensated power of the higher harmonics generated in the power sypply network.

Features

There are coefficients of current and voltage harmonicity curve distortion (K_Uinp, К_Iinp) of metering data for frequency converter ELEKTON-05-400 presented

Parameters	No filter	Filter
Input voltage	Input voltage - No Filter	Input voltage - Filter
Input voltage harmonic structure	KUin=6,89% Input voltage harmonics - No Filter	KUin=2,22% Input voltage harmonics - Filter
Input current	Input current - No Filter	Input current - Filter
Input current harmonic structure	КIin=33,05% Input current harmonics - No Filter	КIin=4,71% Input current harmonics - Filter