Low-voltage thyristor switching


After system compensation, the harmonic current should be less than 20%, and the harmonic voltage is less than 5%. Beyond this range, the compensation circuit must be connected in series with the harmonic matching reactor to avoid harmonic amplification, overvoltage and overcurrent.

The STS-FS series thyristor switching module is a power electronic power device capable of fast switching of low voltage capacitor banks. It has simple installation and wiring and maintenance. It has no inrush current and no overvoltage when switching capacitor bank; no noise during operation; it allows frequent operation.

 

 

 

After system compensation, the harmonic current should be less than 20%, and the harmonic voltage is less than 5%. Beyond this range, the compensation circuit must be connected in series with the harmonic matching reactor to avoid harmonic amplification, overvoltage and overcurrent.

The STS-FS series thyristor switching module is a power electronic power device capable of fast switching of low voltage capacitor banks. It has simple installation and wiring and maintenance. It has no inrush current and no overvoltage when switching capacitor bank; no noise during operation; it allows frequent operation.

 

 

 

PRODUCT

Reactor
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Power quality inspection
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Customization

Application

 

Reactive fast, frequent changes

Limit inrush current, voltage fluctuation

 

Features

 

Input and cut off at voltage zero crossing, no inrush current

quick response

Repeated frequent switching

Over temperature protection, automaticcooling

 

Environmental conditions

 

Ambient temperature: -5 ° C ~ + 55 ° C

Relative humidity: up to 95%

Altitude: below 2000 meters

Installation environment: clean, no conductive 

 

 

Technical Parameters

 

Type Model Capacity Rated current
Three-phase co-complement STSFS-30/△ ≤30kvar 50A
STSFS-60/△ ≤60kvar 100A
Sub-type STSFS-30/ Y ≤3×10kvar 50A
STSFS-60/ Y ≤3×20kvar 100A

 

Technical Parameters

Parameters Specification Parameters Specification
Rated voltage 220/ 380V Life expectancy More than 100,000 hours
Rated frequency 50Hz Protection level IP20
Ambient temperature - 25℃~+ 55℃ Over temperature 80℃
Control voltage DC12V Temperature rise 20℃
Control current 20mA Power consumption 1W or less
Inrush current <1. 8In Insulation resistance ≥20MK
Altitude ≤2000m Insulation withstand voltage ≥2500VAC
Reverse withstand voltage 1800V Relative humidity <85%
Response time t<20ms Noise <45dB

 

 

Installation Size (mm)

Application

 

Reactive fast, frequent changes

Limit inrush current, voltage fluctuation

 

Features

 

Input and cut off at voltage zero crossing, no inrush current

quick response

Repeated frequent switching

Over temperature protection, automaticcooling

 

Environmental conditions

 

Ambient temperature: -5 ° C ~ + 55 ° C

Relative humidity: up to 95%

Altitude: below 2000 meters

Installation environment: clean, no conductive 

 

 

Technical Parameters

 

Type Model Capacity Rated current
Three-phase co-complement STSFS-30/△ ≤30kvar 50A
STSFS-60/△ ≤60kvar 100A
Sub-type STSFS-30/ Y ≤3×10kvar 50A
STSFS-60/ Y ≤3×20kvar 100A

 

Technical Parameters

Parameters Specification Parameters Specification
Rated voltage 220/ 380V Life expectancy More than 100,000 hours
Rated frequency 50Hz Protection level IP20
Ambient temperature - 25℃~+ 55℃ Over temperature 80℃
Control voltage DC12V Temperature rise 20℃
Control current 20mA Power consumption 1W or less
Inrush current <1. 8In Insulation resistance ≥20MK
Altitude ≤2000m Insulation withstand voltage ≥2500VAC
Reverse withstand voltage 1800V Relative humidity <85%
Response time t<20ms Noise <45dB

 

 

Installation Size (mm)

Energy Feedback Reactor

Reference / Implementing Standards GB1094.6-2011 Electric transformer JB9644-1999 Semiconductor electric drive reactor IEEE519 - 1992/EN6100-5-2

Harmonic filter

Reference/ lmplementing Standards IEEE519(EN - 2-5) Electromagnetic Magnetic Compatibility(EMC) EN61558-2-20 (VDE 507-2-20) Safety of Power Supply Equipment and Similar Equipment GB145493-93 Power Quality Public Power Grid Harmonic Wave

LCL filter

Reference/ lmplementing Standards GB 1094.6-2011 Reactor GB 1094.6-2011 Reactor (eqvlEC289:1987) JB 9644-1999 semiconductor electric drive reactor IEEE519-1992 GBT14549-93

EMI filter

Please see the details

Output Reactor

It is installed at the output end of the inverter, which is used to limit the capacitive charging current of the inverter and the motor connecting cable, and inactivate the voltage rise rate of PWM wave output by the inverter. When the length of motor cable exceeds a certain value, it is recommended to insert a motor reactor between the inverter and the motor, which is used to compensate the recharging current of capacitor in case of the long wires. The maximum length depends on the rated value of the frequency converter and the type of the motor cable.

Input Reactor

The input reactor can be used to provide improved overload protection for the line power supply, and to reduce the current harmonic distortion produced by the inverter. Increase the power factor of input power supply, reduce the high harmonic, and restrain the surge of frequency converter in the power supply equipment

Isolation transformer

The SG series three-phase dry-type isolation transformer is a new generation of energy-saving dry-type transformers developed and produced by our company on the basis of reference to similar international products and combined with applications. From...

DC Smoothing Reactor

DC smoothing reactor is used in the rectifying circuit to restrain the ripple pulse component after rectification and make the rectified current continuous, so as to improve the output branch waveform and guarantee the normal operation of DC equipment. The smoothing reactor is used as the series reactor in DC machine supplied by the converter, in order to eliminate the DC link in the current and voltage DC link converter; It is supposed to decouple the converter components on DC side. The power converter on DC side has high pulse circuit feedback to reduce the difference value limit, so as to limit the ring current on the connection with ring current, at the same time, limit the the rising rate of current. The smoothing reactor adopts the iron core of TEM and TET or TPK air core reactor, depending on the requirements on electromagnetic induction.

Sine wave filter

Reference / lmplementing Standards: IEEE519(EN61000-5-2) Electromagnetic compatibility (EMC) EN 61558-2-20(VDE507-2-20) Safety of power supply equipment and similar equipment GB 145493-93 Power quality, utility grid harmonics

Dv/dt filter

Reference / Implementing Standards: IEC60076-6:2007 Reactor GB1094.6-2011 Reactor (eqvIEC289:1987) JB9644-1999 Semiconductor electric drive reactor

Energy Feedback Reactor

Reference / Implementing Standards GB1094.6-2011 Electric transformer JB9644-1999 Semiconductor electric drive reactor IEEE519 - 1992/EN6100-5-2

Harmonic filter

Reference/ lmplementing Standards IEEE519(EN - 2-5) Electromagnetic Magnetic Compatibility(EMC) EN61558-2-20 (VDE 507-2-20) Safety of Power Supply Equipment and Similar Equipment GB145493-93 Power Quality Public Power Grid Harmonic Wave

LCL filter

Reference/ lmplementing Standards GB 1094.6-2011 Reactor GB 1094.6-2011 Reactor (eqvlEC289:1987) JB 9644-1999 semiconductor electric drive reactor IEEE519-1992 GBT14549-93

EMI filter

Please see the details

Output Reactor

It is installed at the output end of the inverter, which is used to limit the capacitive charging current of the inverter and the motor connecting cable, and inactivate the voltage rise rate of PWM wave output by the inverter. When the length of motor cable exceeds a certain value, it is recommended to insert a motor reactor between the inverter and the motor, which is used to compensate the recharging current of capacitor in case of the long wires. The maximum length depends on the rated value of the frequency converter and the type of the motor cable.

Input Reactor

The input reactor can be used to provide improved overload protection for the line power supply, and to reduce the current harmonic distortion produced by the inverter. Increase the power factor of input power supply, reduce the high harmonic, and restrain the surge of frequency converter in the power supply equipment

Isolation transformer

The SG series three-phase dry-type isolation transformer is a new generation of energy-saving dry-type transformers developed and produced by our company on the basis of reference to similar international products and combined with applications. From...

DC Smoothing Reactor

DC smoothing reactor is used in the rectifying circuit to restrain the ripple pulse component after rectification and make the rectified current continuous, so as to improve the output branch waveform and guarantee the normal operation of DC equipment. The smoothing reactor is used as the series reactor in DC machine supplied by the converter, in order to eliminate the DC link in the current and voltage DC link converter; It is supposed to decouple the converter components on DC side. The power converter on DC side has high pulse circuit feedback to reduce the difference value limit, so as to limit the ring current on the connection with ring current, at the same time, limit the the rising rate of current. The smoothing reactor adopts the iron core of TEM and TET or TPK air core reactor, depending on the requirements on electromagnetic induction.


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