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

 

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

 

PRODUCT

Reactor
Filter
Transformer
Power quality inspection
Reactive power compensation
Active filter
The integrated solutions for improving power quality
Customization

LCL filter is very popular in modern renewable energy industry. lt can effectively and economically ensure and improve the feeding quality from

energy to power grid. The filter is used to filter the harmonics wave of the inverter, which will save the considerable cost.

 

Selection table of 380V LCL filtering

 

Model  Power (KW)  Current (A)  Carrier frequency

 Reference size

L*W*H

STS-LCL-5-4S0.75-2.2 0.75-2.2 5 2-8K  
STS-LCL-10-4S4.5-5.5 4.5-5.5 10 2-8K 675*340*300
STS-LCL-15-4S7.5 7.5 15 2-8K 675*340*300
STS-LCL-22-4S11 11 22 2-8K 675*340*300
STS-LCL-45-4S22 22 45 2-8K 675*380*350
STS-LCL-75-4S37 37 75 2-8K 675*380*400
STS-LCL-90-4S45 45 90 2-8K 675*380*450
STS-LCL-110-4S55 55 110 2-8K 675*430*500
STS-LCL-150-4S75 75 150 2-8K 675*430*550
STS-LCL-180-4S90 90 180 2-8K 720*430*550
STS-LCL-230-4S110 110 230 2-8K 720*470*600
STS-LCL-270-4S132 132 270 2-8K 720*470*600
STS-LCL-325-4S160 160 325 2-8K 720*620*600
STS-LCL-440-4S200 200 440 2-8K 720*620*650
STS-LCL-500-4S250 250 500 2-8K 780*620*650
STS-LCL-630-4S315 315 630 2-8K 780*620*700
STS-LCL-710-4S355 355 710 2-8K 780*650*700
STS-LCL-800-4S400 400 800 2-8K 780*690*700
STS-LCL-1000-4S500 500 1000 2-8K 780*690*750
STS-LCL-1250-4S630 630 1250 2-8K 780*750*800

 

 

Typical circuit for application of LCL filter

 

Product application

 

The progress of power semiconductor switch device technology has promoted the rapid development of the power electronic converter technology, various of converter devices based on PWM control has appeared, such as inverter power supply, inverter and other types of converters, and the converters have been widely used in various fields of national wide. Three-phase voltage PWM rectifier has bi-directional power transmission with fast dynamic control response.The power switch components adopted by the current PWM rectifierare mostly IGBT, which can achieve very high switching frequency, the general switching frequency is 2kHz~15kHz. However, the high turn-on turn-off frequency of power switching devices will generate the higher harmonics, injecting into the power grid will generate the harmonic pollution. In order to solve the difficulty encountered by LCL filter, we usually choose LCL filter. LCL filter can select a smaller value of inductance capacitance, thus achieving satisfactory effect between kilowatts and hundreds of kilowatts.

 

ldentification code

 

 

Technical specifications

Maximum Operating Voltage

 380-1140VAC,Non-standard can be customized

Rated Current

15~2500A,Non-standard can be customized

Protection Level

IP00-IP20

Insulation Grade

 class F,H

Temperature Range

-25℃ to +85℃

Overload

2 times of the current 30S, 1.5 times of the current 1 minutes

Temperature Rise

≤70K

Insulation Resistance

1000VDC insulation resistance ≥100MΩ, the altitude does not exceed 2000 m, the running temperature is -25°C~+45°C, the relative humidity is no more than 90%. There is no harmful gas nearby, no inflammable and explosive goods. The surrounding environment should be in good ventilation conditions, in case of being installed in the cabinet, the ventilation equipment should be equipped. 

 

LCL filter is very popular in modern renewable energy industry. lt can effectively and economically ensure and improve the feeding quality from

energy to power grid. The filter is used to filter the harmonics wave of the inverter, which will save the considerable cost.

 

Selection table of 380V LCL filtering

 

Model  Power (KW)  Current (A)  Carrier frequency

 Reference size

L*W*H

STS-LCL-5-4S0.75-2.2 0.75-2.2 5 2-8K  
STS-LCL-10-4S4.5-5.5 4.5-5.5 10 2-8K 675*340*300
STS-LCL-15-4S7.5 7.5 15 2-8K 675*340*300
STS-LCL-22-4S11 11 22 2-8K 675*340*300
STS-LCL-45-4S22 22 45 2-8K 675*380*350
STS-LCL-75-4S37 37 75 2-8K 675*380*400
STS-LCL-90-4S45 45 90 2-8K 675*380*450
STS-LCL-110-4S55 55 110 2-8K 675*430*500
STS-LCL-150-4S75 75 150 2-8K 675*430*550
STS-LCL-180-4S90 90 180 2-8K 720*430*550
STS-LCL-230-4S110 110 230 2-8K 720*470*600
STS-LCL-270-4S132 132 270 2-8K 720*470*600
STS-LCL-325-4S160 160 325 2-8K 720*620*600
STS-LCL-440-4S200 200 440 2-8K 720*620*650
STS-LCL-500-4S250 250 500 2-8K 780*620*650
STS-LCL-630-4S315 315 630 2-8K 780*620*700
STS-LCL-710-4S355 355 710 2-8K 780*650*700
STS-LCL-800-4S400 400 800 2-8K 780*690*700
STS-LCL-1000-4S500 500 1000 2-8K 780*690*750
STS-LCL-1250-4S630 630 1250 2-8K 780*750*800

 

 

Typical circuit for application of LCL filter

 

Product application

 

The progress of power semiconductor switch device technology has promoted the rapid development of the power electronic converter technology, various of converter devices based on PWM control has appeared, such as inverter power supply, inverter and other types of converters, and the converters have been widely used in various fields of national wide. Three-phase voltage PWM rectifier has bi-directional power transmission with fast dynamic control response.The power switch components adopted by the current PWM rectifierare mostly IGBT, which can achieve very high switching frequency, the general switching frequency is 2kHz~15kHz. However, the high turn-on turn-off frequency of power switching devices will generate the higher harmonics, injecting into the power grid will generate the harmonic pollution. In order to solve the difficulty encountered by LCL filter, we usually choose LCL filter. LCL filter can select a smaller value of inductance capacitance, thus achieving satisfactory effect between kilowatts and hundreds of kilowatts.

 

ldentification code

 

 

Technical specifications

Maximum Operating Voltage

 380-1140VAC,Non-standard can be customized

Rated Current

15~2500A,Non-standard can be customized

Protection Level

IP00-IP20

Insulation Grade

 class F,H

Temperature Range

-25℃ to +85℃

Overload

2 times of the current 30S, 1.5 times of the current 1 minutes

Temperature Rise

≤70K

Insulation Resistance

1000VDC insulation resistance ≥100MΩ, the altitude does not exceed 2000 m, the running temperature is -25°C~+45°C, the relative humidity is no more than 90%. There is no harmful gas nearby, no inflammable and explosive goods. The surrounding environment should be in good ventilation conditions, in case of being installed in the cabinet, the ventilation equipment should be equipped. 

 

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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