Auto Detuned Filter Bank

FT1000 Series

Medium & H.V. Automatic Detuned Filter Bank

Power transmission and distribution systems are designed to operate with sinusoidal voltage and current waveforms at a constant frequency. However, when nonlinear loads, such as thyristor drives, converters and arc furnaces are connected to the system, excessive harmonic currents are generated, causing both current and voltage distortion. When harmonics are presented in the system, power factor correction should be implemented by means of automatic capacitor banks with detuned reactors. Each step of the bank consists of a capacitor unit with an anti-resonant LC circuit. It forms a resonant circuit series tuned to a frequency below the 5th harmonic.

Caractéristiques techniques :

Color	Grey ASA61
Construction Standards	UL, CSA
Continuous over-current	150 %
Continuous over-voltage	120 %
Detuned Frequency	7 % or 12.6 % (other tuned frequency on request)
Enclosure Type	Indoor, Outdoor
Insulation Level	60, 75, 95, 125 kV BIL
Mounting Type	Floor Mounting
Power Factor Controller	N12 or NC12, 12 steps
Power Losses	0.4 W/KVAR
Rated Frequency	50 Hz or 60 Hz
Rated Power	20 to 6000 KVAR/Unit
Rated Voltage/Phase	2400 @ 2500 volts/3 Phases
Temperature Class Average 24h	-40° C to 45° C +35° C
Tuned Frequency	5th, 7th, 11th and 13th