Electronic compensation

With electronic compensation it is possible to compensate inductive, capacitive and harmonic reactive power. In addition, it is possible to eliminate imbalances in the flows phase. This creates extra power space, limits energy losses and prevents fines and claims.

In addition, the reduction of harmonic currents significantly improves the voltage quality, so that the connected equipment functions longer, more efficiently and more effectively.

The static VAR Generator (SVG) and Active Harmonic Filter (AHF) from Sinexcel are based on 3-level IGBT technology. This has resulted in compact units with a low weight suitable for wall and rack mounting. With the user-friendly color screen, the models are easy to operate.

 

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Active harmonic filter (AHF) - Sinexcel
Reactive current compensation system - Static VAR Generator (SVG) - Sinexcel

Static VAR Generator (SVG)

The successor to the cos-phi bank

Capacitor banks are used in many installations to reduce reactive current. In modern installations, these capacitor banks often cause problems and active harmonic filters are too expensive.

That is why an electronic variant of the capacitor bank - based on 3-level IBGT technology - has now been developed: the Static VAR Generator.

 

Working principle of an SVG

A Static VAR generator (SVG) is a fast electronic and stepless reactive current compensation without capacitors. The SVG measures the inductive current [1] and injects a current which is phase-shifted with the voltage [2] such that the current for the filter [3] flows neatly with the voltage.

Properties of a Static Var Generator

  • Compensate for both inductive and capacitive reactive power
  • Eliminate imbalance in phase currents and create power space.
  • Resistant to harmonic currents.
The operation of a static VAR generator - Sinexcel
Operation of a static VAR generator - Sinexcel

Typical application areas of a Static VAR Generator

  • In capacitive networks where the emergency power generator does not come up properly
  • To compensate for rapidly changing electronic loads
  • In installations with unevenly loaded phases where more power space is required
  • Eliminate imbalance in feed-in at solar parks

Advantages SVG over a capacitor bank

  • Compensate for both inductive and capacitive reactive power
  • Super fast response time (<20ms)
  • Fast and stepless, so that over- or undercompensation is not possible
  • More compact and lighter weight
  • Less energy loss
  • Not overloadable and insensitive to resonance and interharmonics
  • Maintenance free

Model overview Static VAR Generator (SVG)

AHF models for electronic compensation
  Statische VAR generator - Sinexcel Statische VAR generator - Sinexcel Statische VAR generator - Sinexcel Statische VAR generator - Sinexcel
Type SVG 030 SVG 050-P2 SVG 100-P2 Sinexcel SVG 200
Compensation capability 30 kVar 50 kVar 100 kVar 200 kVar
Compensation in 3 phases and zero (4-wire)
Nominal voltage range 400 V (-30% / +10%)
Nominal frequency 50/60 Hz (Range 45...63 Hz)
Reactive current compensation Dynamic inductive to capacitive, configurable up to 1.0
Imbalance compensation on / off (phase - phase & phase - N)
Efficiëncy ≥ 97%
Respons time 50 µs
Inverter contruction IGBT, 3-level topology
Clock frequency 20...35 kHz
Configuration Via 4,3 "touchscreen
Communication-interface RS-485 - Modbus RTU
Communication protocol Modbus-protocol, TCP / IP
Measured value acquisition 3-phase measurement of the current to be compensated by means of a current transformer
Design Wall model, cable connection at the top. Rack model, rear cable connection
Colour RAL 7035 grey
Degree of protection IP20
Ambient temperature Max. + 40 ° C value for short periods (reduction from 45 ° C), + 35 ° C 24-hour average, -10 ° C lowest value
Noise level 65 dB
Cooling air requirement 790 m³/h 790 m³/h 1080 m³/h 1600 m³/h
Wall mounting dimensions (WxDxH) (mm) 440*160*481 500*191*582 500*271*553 590*370*692
Rack mounting dimension (wxdxh) (mm) 440*445*150 500*557*190 500*520*269 500*370*692
Weight 21 kg 35 kg 48 kg 121 kg
Article numbers, documentation and technical data
Wall mounting 3P4W SL100002 SL100004 SL100006 SL100043
Wall mounting 3P3W SL100001 SL100003 SL100005 SL100044
Rack mounting 3P4W SL100008 SL100010 SL100012 SL100045
Rack mounting 3P3W SL100007 SL100009 SL100011 SL100046
IP21 option OE200277 OE200280 OE200259 OE200281
Active harmonic filter (AHF) - Sinexcel

Active harmonic filter (AHF) - Sinexcel

Compensating for harmonic currents

With an active harmonic filter, harmonic currents can be compensated, creating additional power space and preventing machine and equipment failure.

The active filter is based on 3-level IGBT technology, making the filter compact and minimizing losses.

 

View active harmonic filters (AHF) in the webshop

Working principle of an active harmonic filter (AHF)

An active harmonic filter filters harmonic currents with an operating principle based on the principle of “noise canceling”. The filter measures the current pollution [1] and injects a counter current [2] which is shaped in such a way that the current for the filter [3] becomes sinusoidal again. This compensates for all harmonic reactive power.

Inductive, capacitive and harmonic compensation

The harmonic filter is also able to compensate both inductive and capacitive reactive power, making such a filter universally applicable and not overloadable.

Properties of an active harmonic filter

  • Elimination of harmonic currents
  • Compensate for both inductive and capacitive reactive power
  • Eliminate imbalance in phase currents and create power space
  • Improve voltage quality
How an active filter (AHF) works - Sinexcel
Current form and harmonic spectrum before and after compensation with an AHF - Janitza

Typical applications of an active harmonic filter (AHF)

  • Reduction of inductive, capacitive and harmonic reactive power
  • Reduce problems with LED lighting, charging points and frequency-controlled motors
  • Filter out harmonic currents and thereby improve voltage quality

Advantages of an active harmonic filter

  • All power quality problems can be solved
  • Compensate for inductive, capacitive and harmonic reactive power
  • Equalize unevenly charged phases, creating additional power space
  • Improve voltage quality
  • Even more power space by limiting derating power transformer
  • Super fast response time (<5ms) and continuous adaptation to the load
  • Less losses, lower footprint
  • Not overloadable and insensitive to resonance and interharmonics

Model overview Active Harmonic Filter (AHF)

Models AHFs for electronic compensation
  Actief harmonisch filter - Sinexcel Actief harmonisch filter - Sinexcel Actief harmonisch filter - Sinexcel Actief harmonisch filter - Sinexcel Actief harmonisch filter - Sinexcel Actief harmonisch filter - Sinexcel Actief harmonisch filter - Sinexcel
Compensation capability 15 A 25 A 35 A 50 A 60 A 75 A 100 A
Compensation in 3 phases and zero (4-wire)
Nominal voltage range 400 V (-40% / +20%) 400 V (-30% / +10%)
Nominal frequency 50/60 Hz (Range 45...62,5 Hz)
Harmonic compensation FFT and intelligente FFT from the 2nd to the 61th harmonic FFT and intelligent FFT from the 2nd to the 50th harmonic
Reactive current compensation Dynamic inductive to capacitive, configurable up to 1.0
Imbalance compensation on / off (phase - phase & phase - N)
Respons time 50 µs
Efficiëncy ≥ 97%
Correction time 5ms (filter function from 10% to 90%)
Inverter contruction MOSFET, 3-level topology IGBT, 3-level topology
Clock frequency 90 kHz 20...35 kHz
Configuration Via WiFi Via 4,3 "touchscreen (7" touchscreen optional)
Communication interface RS-485 RS-485 - Modbus RTU
Communication protocol Modbus-2 Modbus-protocol, TCP / IP
Measured value acquisition 3-phase measurement of the current to be compensated by means of a current transformer
Design Rack and Wallmount Wall model, cable connection at the top
Colour RAL 9004 black
Degree of protection IP20
Ambient temperature Max. + 40 ° C value for short periods (reduction from 45 ° C), + 35 ° C 24-hour average, -10 ° C lowest value
Noise level 55 dB 65 dB
Cooling air requirement 158 m³/h 270 m³/h 550 m³/h 1080 m³/h
Wall mounting dimensions (WxDxH) (mm) 400*44,5*325 440*150*470 440*190*610 440*234*625
Rack mounting dimension (wxdxh) (mm) 400*325*44,5 440*490*150 440*590*190 440*600*230
Weight 5 kg 18 kg 35 kg 36 kg
Fusing current 25A 40A 63A 50A 100A 125A 160A
Article numbers, documentation and technical data
Wall mounting 3P4W SL200016 SL200004 SL200006 SL200008 SL200010 SL200012 SL200014
Wall mounting 3P3W SL200015 SL200003 SL200005 SL200007 SL200009 SL200011 SL200013
IP21 option   OE200277 OE200277 OE200278 OE200278 OE200280 OE200279

Advanced Static VAR Generator

The best solution for reducing reactive power and filtering out the most common harmonic

In most installations the reactive power consists of so-called inductive reactive power (poor cos-phi) and harmonic reactive power caused by current harmonics up to the 9th order. The ASVG was developed precisely for this application.

As with the SVG, the ASVG can be used to reduce inductive or capacitive reactive power. In addition, 50% of available compensation capacity can be used to reduce harmonic through 11th order. This means that for most installations, the ASVG is the most effective solution for reducing reactive power.

As with the AHF and the SVG, the ASVG is based on IBGT technology - developed. That means small dimensions, light in weight and low losses.

Model overview Advanced Static VAR Generator (ASVG)

ASVG's models for electronic compensation
  Statische VAR generator - Sinexcel Statische VAR generator - Sinexcel Statische VAR generator - Sinexcel Statische VAR generator - Sinexcel
Type ASVG 030 ASVG 050-P2 ASVG 100-P2 Sinexcel ASVG 200
Compensation capability 30 kVar 50 kVar 100 kVar 200 kVar
Compensation in 3 phases and zero (4-wire)
Nominal voltage range 400 V (-30% / +10%)
Nominal frequency 50/60 Hz (Bereik 45...63 Hz)
Reactive current compensation Dynamic inductive to capacitive, configurable up to 1.0
Imbalance compensation on / off (phase - phase & phase - N)
Harmonic compensation Support low-order (3, 5, 7, 9 & 11) Small capacity (50% rated power)
Efficiëncy ≥ 97%
Respons time 50 µs
Inverter contruction IGBT, 3-level topology
Clock frequency 20...35 kHz
Configuration Via 4,3 "touchscreen
Communication interface RS-485 - Modbus RTU
Communication protocol Modbus-protocol, TCP / IP
Measured value acquisition 3-phase measurement of the current to be compensated by means of a current transformer
Design Wall model, cable connection at the top. Rack model, rear cable connection
Colour RAL 7035 grey
Degree of protection IP20
Ambient temperature Max. + 40 ° C value for short periods (reduction from 45 ° C), + 35 ° C 24-hour average, -10 ° C lowest value
Noise level 65 dB
Cooling air requirement 790 m³/h 790 m³/h 1080 m³/h 1600 m³/h
Rack mounting dimension (wxdxh) (mm) 440*445*150 500*557*190 500*520*269 500*370*692
Wall mounting dimensions (WxDxH) (mm) 440*160*481 500*191*582 500*271*553 590*370*692
Weight 21 kg 35 kg 48 kg 121 kg
Article numbers, documentation and technical data
Wall mounting 3P4W SL100031 SL100033 SL100035 SL100050
Wall mounting 3P3W SL100030 SL100032 SL100034 SL100049
Rack mounting 3P4W SL100037 SL100039 SL100041 SL100048
Rack mounting 3P3W SL100036 SL100038 SL100040 SL100047
IP21 option OE200277 OE200280 OE200259 OE200281

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