Reactive power automatic compensation controller


The STS-JKW series reactive power automatic compensation controller adopts high-performance MCU as the core and is equipped with high-precision power-specific chips, which can reliably operate in any harsh grid environment such as non-sinusoidal current, strong interference, large harmonic.

The unique adaptive function ensures the safe use of the power capacitor, and truly realizes the automatic stable switching of the capacitor compensation cabinet, effectively improving the power factor of the power grid.

 


 

 

The STS-JKW series reactive power automatic compensation controller adopts high-performance MCU as the core and is equipped with high-precision power-specific chips, which can reliably operate in any harsh grid environment such as non-sinusoidal current, strong interference, large harmonic.

The unique adaptive function ensures the safe use of the power capacitor, and truly realizes the automatic stable switching of the capacitor compensation cabinet, effectively improving the power factor of the power grid.

 


 

 

PRODUCT

Reactor
Filter
Transformer
Power quality inspection
Reactive power compensation
Active filter
The integrated solutions for improving power quality
Customization
Technical Parameters:
Output≤24
Operating VoltageAC220V±20%50H
Sampling voltageACThree-phase four-wire AC 220V±20% 50Hz
Sampling currentACThree-phase 0-5A
Measurement sensitivity50mA
Measurement accuracy: Voltage: 0.5 Current: 0.5
Power factor: 0.5 active power: 1.0
Reactive power: 1.0 Frequency: 0.1
Ambient temperature: -25°C~+55°C, humidity ≤90%, altitude below 2000m (please call for information beyond the scope)
Environmental conditions: without conductive dust
Dimensions:144×144×110mm
Mounting hole size138×138mm
 
Features:
Calculating the capacity of the switching capacitor with reactive power can avoid various forms of switching oscillation, have strong anti-harmonic interference capability and can correctly display the power factor of the grid.Real-time display of three-phase power factor (PF), high measurement accuracy and wide display range.Up to 5 compensation options.In order to share the compensation mode, the total compensation circuit can be set arbitrarily, and the maximum output is 14 channels.Man-machine interface, friendly operation.The various controlparameters are all digitally adjustable and easyto use.Both automatic and manual operation.Protection functions such as overvoltage, undervoltage, phase loss and reverse sequence.The function data is not lost when power is lost.The current signal input impedance is ≤0.01.
 
Technical characteristics:
The parameters of the grid are collected and dynamically displayed. The parameter settings are simple and will not lose.The switching of the capacitor bank is controlled according to the grid power factor and the reactive power.It has the functions of detec ti ng overvol tage, undervol tage, revers e phase s equence and c urrent reverse polarity. W hen the gri d param eters exc eed the s et l im its, the c ontroll er quick l y c uts off thec apac i tors that have been i nput and bl oc ks the output. The capaci tor operates s afely and extends i ts l ife.Us ing vol tage, c urrent, power factor and reac ti ve power, the voltage hysteresis partic ipates in the control j udgm ent, which m ak es the com pens ati on more accurate and prevents the s wi tching os ci ll ation.Mul ti-sampli ng the above val ues during the ac ti on del ay tim e to judge the reac ti ve power trend, avoiding the ac ti on poi nt of the c onventi onal c ontroller In the case where the power factor varies greatly,the reactive power and compensation direction (input or cut) required for compensation can be accurately determined.
 


Technical Parameters:
Output≤24
Operating VoltageAC220V±20%50H
Sampling voltageACThree-phase four-wire AC 220V±20% 50Hz
Sampling currentACThree-phase 0-5A
Measurement sensitivity50mA
Measurement accuracy: Voltage: 0.5 Current: 0.5
Power factor: 0.5 active power: 1.0
Reactive power: 1.0 Frequency: 0.1
Ambient temperature: -25°C~+55°C, humidity ≤90%, altitude below 2000m (please call for information beyond the scope)
Environmental conditions: without conductive dust
Dimensions:144×144×110mm
Mounting hole size138×138mm
 
Features:
Calculating the capacity of the switching capacitor with reactive power can avoid various forms of switching oscillation, have strong anti-harmonic interference capability and can correctly display the power factor of the grid.Real-time display of three-phase power factor (PF), high measurement accuracy and wide display range.Up to 5 compensation options.In order to share the compensation mode, the total compensation circuit can be set arbitrarily, and the maximum output is 14 channels.Man-machine interface, friendly operation.The various controlparameters are all digitally adjustable and easyto use.Both automatic and manual operation.Protection functions such as overvoltage, undervoltage, phase loss and reverse sequence.The function data is not lost when power is lost.The current signal input impedance is ≤0.01.
 
Technical characteristics:
The parameters of the grid are collected and dynamically displayed. The parameter settings are simple and will not lose.The switching of the capacitor bank is controlled according to the grid power factor and the reactive power.It has the functions of detec ti ng overvol tage, undervol tage, revers e phase s equence and c urrent reverse polarity. W hen the gri d param eters exc eed the s et l im its, the c ontroll er quick l y c uts off thec apac i tors that have been i nput and bl oc ks the output. The capaci tor operates s afely and extends i ts l ife.Us ing vol tage, c urrent, power factor and reac ti ve power, the voltage hysteresis partic ipates in the control j udgm ent, which m ak es the com pens ati on more accurate and prevents the s wi tching os ci ll ation.Mul ti-sampli ng the above val ues during the ac ti on del ay tim e to judge the reac ti ve power trend, avoiding the ac ti on poi nt of the c onventi onal c ontroller In the case where the power factor varies greatly,the reactive power and compensation direction (input or cut) required for compensation can be accurately determined.
 


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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

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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

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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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