Harmonic control and reactive power compensation solutions


Please see the list

Please see the list

PRODUCT

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

Comparison

 

Harmonic voltage limit

Solutions FC branch SVC+FC branch SVG+FC branch APF APF+FC
  Passive filter Static dynamic reactive power compensation device Static var generator Active filter device Hybrid treatment device
Function realization

1. Fixed number of filtering, which can be composed of multiple FC filtering branches

2. Improve power factor

1. Fixed number of filtering, which can be composed of multiple FC filtering branches

2. Fast response to reactive filtering, improving power factor

3. Suppress voltage flicker and fluctuation

4. Suppress three-phase unbalance

1. Can be composed of multiple FC filter branches

2. Realize fast and accurate two-way reactive power compensation

3. Suppress voltage flicker and fluctuation

4. Suppress three-phase unbalance

1. Realize full frequency delivery, precise filtering

2. Reactive power compensation is limited

1. Realize full-frequency delivery, precise filtering, diversified combinations

2. Improve power factor

Working principle Composed of passive components such as FC to provide a low impedance path for characteristic harmonic currents The filtering principle is the same as that of the FC branch, which can dynamically control reactive power compensation.

The filtering principle is the same as that of the FC branch, and the reactive power compensation can be dynamically controlled.

The compensation range is wider than the SVC+FC branch

By detecting the load harmonic current, the DSP can quickly calculate the compensation harmonic current with the opposite direction of harmonic current and the same amplitude, thus canceling the nonlinear load.

The filtering principle is the same as that of APF, and it has reactive power compensation function and can be personalized.
Filtering effect About 60-80%
About 60-80%

About 60-80%

Fully compensated

Fully compensated
Reactive power compensation effect
Fixed capacity compensation
Fast response and good compensation

The response speed is faster than TCR,  and the compensation effect is good

Limited effect, often used for low voltage system filtering

Both the filtering and the compensation effect

 

 

Passive filterFC)

 

The device is mainly composed of a switch component, a filter capacitor, a filter reactor, a zinc oxide arrester, and the like. According to the needs of users, it can be made into cabinet type or fence type. In addition to filtering, also has the function of reactive power compensation.FC filters mainly include single-tuned filters, high-pass filters, C-type filters, etc. Each set of filters has its own characteristics. The high-pass filter has low impedance to harmonics above the cut-off frequency. The C-type filter has a wide tuning band and low loss. Five anti-electrical and mechanical locking are set according to the main wiring and the cabinet structure.

 

Identification code

 

 

 

 

 

Product description

 

Suitable for the treatment of 0.4kv, 0.6kv, 6kv, 10kv and 35kv power grids. Through harmonic measurement and computer simulation calculation, ensure the best economic and technical performance of the device, improve the power factor of the grid to reach 0.9 or above. The device is used in parallel with a harmonic source to absorb harmonic currents in situ. High-performance filter capacitors and filter reactances are used to suppress and absorb harmonic currents, reduce harmonic voltage distortion rate and reduce line loss.

 

Applicable industries

 

Non-linear load or impact load system such as intermediate frequency, frequency conversion and other rectifier equipment, electric arc furnace, coal mine, electrified railway. Product size is determined according to the user's specific design.

Comparison

 

Harmonic voltage limit

Solutions FC branch SVC+FC branch SVG+FC branch APF APF+FC
  Passive filter Static dynamic reactive power compensation device Static var generator Active filter device Hybrid treatment device
Function realization

1. Fixed number of filtering, which can be composed of multiple FC filtering branches

2. Improve power factor

1. Fixed number of filtering, which can be composed of multiple FC filtering branches

2. Fast response to reactive filtering, improving power factor

3. Suppress voltage flicker and fluctuation

4. Suppress three-phase unbalance

1. Can be composed of multiple FC filter branches

2. Realize fast and accurate two-way reactive power compensation

3. Suppress voltage flicker and fluctuation

4. Suppress three-phase unbalance

1. Realize full frequency delivery, precise filtering

2. Reactive power compensation is limited

1. Realize full-frequency delivery, precise filtering, diversified combinations

2. Improve power factor

Working principle Composed of passive components such as FC to provide a low impedance path for characteristic harmonic currents The filtering principle is the same as that of the FC branch, which can dynamically control reactive power compensation.

The filtering principle is the same as that of the FC branch, and the reactive power compensation can be dynamically controlled.

The compensation range is wider than the SVC+FC branch

By detecting the load harmonic current, the DSP can quickly calculate the compensation harmonic current with the opposite direction of harmonic current and the same amplitude, thus canceling the nonlinear load.

The filtering principle is the same as that of APF, and it has reactive power compensation function and can be personalized.
Filtering effect About 60-80%
About 60-80%

About 60-80%

Fully compensated

Fully compensated
Reactive power compensation effect
Fixed capacity compensation
Fast response and good compensation

The response speed is faster than TCR,  and the compensation effect is good

Limited effect, often used for low voltage system filtering

Both the filtering and the compensation effect

 

 

Passive filterFC)

 

The device is mainly composed of a switch component, a filter capacitor, a filter reactor, a zinc oxide arrester, and the like. According to the needs of users, it can be made into cabinet type or fence type. In addition to filtering, also has the function of reactive power compensation.FC filters mainly include single-tuned filters, high-pass filters, C-type filters, etc. Each set of filters has its own characteristics. The high-pass filter has low impedance to harmonics above the cut-off frequency. The C-type filter has a wide tuning band and low loss. Five anti-electrical and mechanical locking are set according to the main wiring and the cabinet structure.

 

Identification code

 

 

 

 

 

Product description

 

Suitable for the treatment of 0.4kv, 0.6kv, 6kv, 10kv and 35kv power grids. Through harmonic measurement and computer simulation calculation, ensure the best economic and technical performance of the device, improve the power factor of the grid to reach 0.9 or above. The device is used in parallel with a harmonic source to absorb harmonic currents in situ. High-performance filter capacitors and filter reactances are used to suppress and absorb harmonic currents, reduce harmonic voltage distortion rate and reduce line loss.

 

Applicable industries

 

Non-linear load or impact load system such as intermediate frequency, frequency conversion and other rectifier equipment, electric arc furnace, coal mine, electrified railway. Product size is determined according to the user's specific design.

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.


Prev:No More
MESSAGE
*Name
Phone
*E-Mail
Address
*Message