DETUNED FILTER CAPACITOR BANKS

All electrical devices require active power in order to function. Many electrical devices, such as electric motors, also require reactive power. The reactive power can be taken from the power grid, in which case the electricity company charges a reactive power fee. The other option is to generate reactive power locally with a detuned filter capacitor bank.

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DETUNED FILTER CAPACITOR BANKS

All electrical devices require active power in order to function. Many electrical devices, such as electric motors, also require reactive power. The reactive power can be taken from the power grid, in which case the electricity company charges a reactive power fee. The other option is to generate reactive power locally with a detuned filter capacitor bank.

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REACTIVE POWER REQUIREMENTS

Harmonic flows occur in power networks due to non-linear loads, such as computers, frequency converters and UPS equipment. Among other things, the harmonic flows increase losses and cause malfunctions in electrical devices. A detuned filter capacitor bank filters out common harmonic flows.
In selecting the detuned filter capacitor bank, the system’s reactive power need and fluctuations in the need must be known. The reactive power need is usually evident in the electricity bill. In more complex systems, reactive power need and harmonics are verified by measurements.
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estokelaparisto pätöteho loisteho sähkölaite sähköverkko yliaaltovirrat
estokelaparisto pätöteho loisteho sähkölaite sähköverkko yliaaltovirrat

SELECTING THE DETUNED FILTER CAPACITOR BANK

A detuned filter capacitor bank is comprised of suitable compensation steps. The steps are selected depending on the fluctuation of compensation needs in the system. Typically, a suitable combination of small (e.g. 12.5 kvar), medium (e.g. 25 kvar) and large (e.g. 50 kvar) compensation steps are needed. The controller turns the compensation steps on/off as needed. If the traditional floor model detuned filter capacitor bank is too large or cannot be installed on the floor for other reasons, we recommend our wall-mounted capacitor banks.

The detuned filter capacitor bank is tuned to a frequency not found in the grid (in Northern Europe, this is usually 189 Hz). Other tuning frequencies can also be used.

DETUNED FILTER CAPACITOR BANKS
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Esimerkkimalleja

Power (kvar) Steps
45 7.5+12.5+25
100 2×12,5+25+50
150 2×12,5+25+2×50
200 2×25+3×50
300 2×25+5×50
download product info
Product Power (kvar) Steps (kvar) Current (A) Dimensions (width x depth x height) Weight (kg) Fuse (A) Cable (Cu/mm²)
TKF-E45/7.5+12.5+25/400-50-189 45 7.5+12.5+25 65 800x600x1150 130 3*100 3 x125
TKF-E70/7.5+12.5+2x25/400-50-189 70 7.5+12.5+2x25 101 800x600x1150 150 3*160 3 x 70 + 35
TKF-E75/2x12.5+2x25/400-50-189 75 2x12.5+2x25 108 800x600x1150 150 3*160 3 x 70 + 35
TKF-E75/12.5+25+37.5/400-50-189 75 12.5+25+37.5 108 800x600x1150 150 3*160 3 x 70 + 35
TKF-E95/7.5+12.5+25+50/400-50-189 95 7.5+12.5+25+50 137 800x600x1150 180 3*200 3 x 120 + 70
TKF-E100/2x12.5+25+50/400-50-189 100 2x12.5+25+50 144 800x600x1150 180 3*200 3 x 120 + 70
TKF-E125/12.5+25+37.5+50/400-50-189 125 12.5+25+37.5+50 180 800x600x1150 190 3*250 2 x (3 x 70 + 35)
TKF-E150/2x12.5+25+2x50/400-50-189 150 2x12.5+25+2x50 217 800x600x1150 200 3*315 2 x (3 x 70 + 35)
TKF-E175/25+3x50/400-50-189 175 25+3x50 252 800x600x2000 280 3*315 2 x (3 x 95 + 50)
TKF-E200/2x12.5+25+3x50/400-50-189 200 2x12.5+25+3x50 288 800x600x2000 320 3*400 2 x (3 x 95 + 50)
TKF-E200/2x25+3x50/400-50-189 200 2x25+3x50 288 800x600x2000 320 3*400 2 x (3 x 95 + 50)
TKF-E225/25+4x50/400-50-189 225 25+4x50 324 800x600x2000 350 3*400 2 x (3 x 120 + 70)
TKF-E250/2x25+4x50/400-50-189 250 2x25+4x50 361 800x600x2000 380 3*500 2 x (3 x 150 + 70)
TKF-E275/25+5x50/400-50-189 275 25+5x50 397 800x600x2000 420 3*630 2 x (3 x 185 + 95)
TKF-E300/2x25+5x50/400-50-189 300 2x25+5x50 433 800x600x2000 450 3*630 2 x (3 x 185 + 95)
TKF-E300/6x50/400-50-189 300 6x50 433 800x600x2000 450 3*630 2 x (3 x 185 + 95)
TKF-E400/2x25+50+4x75/400-50-189 400 2x25+50+4x75 577 800x600x2000 520 3*800 2 x (3 x 240 + 120)
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Features

  • 400 V, 50 Hz
  • Tuning frequency 189 Hz
  • 6-step controller (12-step controller in products with more than 6 steps)
  • Cabling from above
  • Filter fan
  • Enclosure class IP30
  • Indoor installation 0–35 °C

Options

  • Voltage level other than 400 V – such as 690 V
  • Tuning frequency other than 189 Hz – such as 134 or 141 Hz.
  • Outdoor installation: IP43, -25–(+35) °C
  • Cabling from below or side
  • Slave capacitor bank without controller

Special batteries

We also manufacture products with different features, such as different voltage levels or dimensions. Learn more here

Download instructions

Detuned filter capacitor bank instruction manual

CONTACT US

CONTACT US

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Teemu Lindgren
Sales Director
+358 40 575 9800
teemu.lindgren@tkf.fi
Partnerships and European sales
Eero Nerto
Sales Manager
+358 400 777 185
eero.nerto@tkf.fi
Finnish sales, technical support and measurements
Tampereen Kondensaattoritehdas Oy
Hyllilänkatu 15, FI-33730 Tampere
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