1、 Product Overview
The working principle of the STD SVG series static var generator is to connect a voltage source inverter in parallel to the power grid through a filter. By adjusting the amplitude and phase of the output voltage on the AC side of the inverter, it dynamically and accurately compensates for reactive power in the power grid system. The instantaneous response time is less than 50us, and the full response time is less than 10ms, avoiding the occurrence of over compensation and under compensation. It is currently a good solution in the field of reactive power compensation.
2、Performance characteristics
Ø Adopting DSP+CPLD full digital control core, three-level topology technology, advanced reactive power detection algorithm, and PWM control strategy to achieve dynamic and accurate compensation of reactive power.
Ø Adopting modular design, it is convenient for multiple modules to be connected in parallel, with small footprint and easy maintenance.
Ø The design of independent air ducts and independent board storage structures ensures the stable operation of the equipment.
Ø It can provide full range dynamic compensation for both inductive and capacitive reactive power, and simultaneously solve the problem of three-phase imbalance.
Ø The dynamic response speed to the load is in milliseconds, which can achieve dynamic and precise compensation for reactive power of impulsive loads.
3、 Main application scenarios
Residential distribution systems, drainage and sewage treatment industries, distributed photovoltaic industries, chemical, chemical fiber and petroleum industries, metallurgy, casting and cement industries, coal and mining industries, automotive manufacturing industries, and more.
4、Model Description and Appearance
Model
Static reactive power generator
5、Technical Parameter
|
|
220Vseries |
380Vseries |
500Vseries |
690Vseries |
|
Altitude |
≤1500m |
≤1500m |
≤1500m |
≤1500m |
|
Environmental temperature |
-20～+50℃ |
-20～+50℃ |
-20～+50℃ |
-20～+50℃ |
|
Relative humidity |
≤90%，monthly minimum temperature25℃surface no condensation |
≤90%，monthly minimum temperature25℃surface no condensation |
≤90%，monthly minimum temperature25℃surface no condensation |
≤90%，monthly minimum temperature25℃surface no condensation |
|
Pollution level |
below level III |
below level III |
below level III |
below level III |
|
Working voltage |
AC220V±20% |
AC380V±20% |
AC500V±20% |
AC690V±20% |
|
Working frequency |
50Hz±5% |
50Hz±5% |
50Hz±5% |
50Hz±5% |
|
Rated compensation capacity |
5kvar |
35kvar、50kvar、75kvar、100kvar |
90kvar |
120kvar |
|
Power grid structure |
L/N |
three-phase three wire/three-phase four wire |
three-phase three wire/three-phase four wire |
three-phase three wire/three-phase four wire |
|
Number of parallel units |
Unlimited |
Unlimited |
Unlimited |
Unlimited |
|
Overall efficiency |
≥97% |
≥97% |
≥97% |
≥97% |
|
Switching frequency |
32kHz |
16kHz |
12.8kHz |
12.8kHz |
|
Function selection |
reactive power |
reactive power, reactive power + unbalanced |
reactive power, reactive power + unbalanced |
reactive power, reactive power + unbalanced |
|
Reactive power compensation rate |
≥99% |
>95% |
>95% |
>95% |
|
Full response time |
<10ms |
<10ms |
<10ms |
<10ms |
|
Noise |
≤60dB |
≤60dB |
≤65dB |
≤65dB |
|
Communication method |
22-way RS485 communication interface (supporting GPRS/WIFI) |
22-way RS485 communication interface (supporting GPRS/WIFI) |
22-way RS485 communication interface (supporting GPRS/WIFI) |
22-way RS485 communication interface (supporting GPRS/WIFI) |
|
Protection function |
Overload, software/hardware overcurrent, grid overvoltage/undervoltage, power failure, over temperature, frequency anomaly protection, etc |
Overload, software/hardware overcurrent, grid overvoltage/undervoltage, grid voltage imbalance, power failure, over temperature, abnormal frequency, short circuit protection, etc |
Overload, software/hardware overcurrent, grid overvoltage/undervoltage, grid voltage imbalance, power failure, over temperature, abnormal frequency, short circuit protection, etc |
Overload, software/hardware overcurrent, grid overvoltage/undervoltage, grid voltage imbalance, power failure, over temperature, abnormal frequency, short circuit protection, etc |
|
Installation method |
rack/wall mounted |
rack/wall mounted |
rack |
rack |
|
Incoming method |
rear incoming line (rack mounted), upper incoming line (wall mounted) |
rear incoming line (rack mounted), upper incoming line (wall mounted) |
rear incoming line |
rear incoming line |
|
Protection level |
IP20 |
IP20 |
IP20 |
IP20 |
6、Specification and model
|
Module model |
||||
|
Common models |
Compensation capacity (kvar) |
System voltage (V) |
Overall dimensions： Width * Depth * Height (mm) |
Cooling method |
|
STD SVG-0.22-5k/2L-R |
5 |
220 |
220*330*160 |
Forced air cooling |
|
STD SVG-0.4-35k/4L-R |
30 |
400 |
450*460*95 |
Forced air cooling |
|
STD SVG-0.4-50k/4L-R |
50 |
400 |
453*540*190 |
Forced air cooling |
|
STD SVG-0.4-75k/4L-R |
75 |
400 |
500*550*215 |
Forced air cooling |
|
STD SVG-0.4-100k/4L-R |
100 |
400 |
500*550*215 |
Forced air cooling |
|
STD SVG-0.5-90k/4L-R |
90 |
500 |
495*675*275 |
Forced air cooling |
|
STD SVG-0.69-120k/4L-R |
120 |
690 |
495*675*275 |
Forced air cooling |
|
Whole cabinet device model |
||||
|
Common models |
Compensation capacity (kvar) |
System voltage (V) |
Overall dimensions： Width * Depth * Height（mm） |
Cooling method |
|
STD SVG-0.4-200k/4L-C |
200 |
400 |
1000*1000*2200 |
Forced air cooling |
|
STD SVG-0.4-250k/4L-C |
250 |
400 |
1000*1000*2200 |
Forced air cooling |
|
STD SVG-0.4-300k/4L-C |
300 |
400 |
1000*1000*2200 |
Forced air cooling |
|
STD SVG-0.4-400k/4L-C |
400 |
400 |
1000*1000*2200 |
Forced air cooling |
|
STD SVG-0.5-270k/4L-C |
270 |
500 |
1000*1000*2200 |
Forced air cooling |
|
STD SVG-0.69-360k/4L-C |
360 |
690 |
1000*1000*2200 |
Forced air cooling |