Year1
- 450KW：
- 定制
- 450KW：
- 定制
- 450KW：
- 定制
Body. Grid-connected inverter anti-islanding effect test device AC test load, simulates resonance occurrence, when resonance occurs, inductive current capacitive current resistive current, load quality When the three-phase voltage is unbalanced, it can accurately and quickly debug the resonance point of each phase, and scientifically detect the anti-islanding protection function, working efficiency and power supply performance of the photovoltaic grid-connected inverter. , is an essential testing tool for production workshops, laboratories, installation and debugging, and scientific research and development.
The grid-connected inverter anti-islanding effect test device fully meets the relevant testing requirements for grid-connected inverter products in factory testing, type testing and anti-islanding protection testing. It has been widely used in grid-connected inverter manufacturers. , scientific research and development of grid-connected inverters, grid-connected inverter testing and appraisal institutions, university electrical laboratories, product acceptance and daily maintenance testing fields.
The outstanding application of the grid-connected inverter anti-islanding effect test device
simulates the occurrence of resonance in AC power equipment, and effectively and accurately detects the anti-islanding effect protection function of the grid-connected inverter.
, detect the working efficiency, full load operation output power and load capacity of various inverters.
, simulate various complex working environments, and detect the comprehensive working performance of the inverter in various environments.
, applied to the user unit's product acceptance and daily maintenance inspection of grid-connected inverters, comprehensive and scientific testing of the power supply capabilities of various inverters,
and accurate detection reports.
, used in grid-connected inverter factory inspection, type testing, production debugging, scientific research and development, laboratory electrical testing, authoritative organization identification and testing and other fields.
The main functions of the grid-connected inverter anti-islanding effect test device
The three-phase inductive current and three-phase capacitive current values are directly and independently displayed on the control panel, and the resonance point symptoms are directly displayed on the panel.
The minimum standard power of the built-in resistive load, inductive load and capacitive load is continuously adjustable in step amplitude, which can accurately simulate the occurrence of AC resonance and meet the detection needs of the inverter's anti-islanding protection function.
The resolution of three-phase inductive current and three-phase capacitive current values is.
The built-in inductor adopts a magnetic circuit type controllable load reactor, which meets the power adjustment requirements under working conditions and ensures that the inductor impedance power will not change during long-term loading tests.
The built-in capacitor uses certified standard capacitors, which meet the power adjustment requirements under working conditions and ensure that the capacitive impedance power will not change during long-term loading tests.
Each branch of the built-in capacitive load must be equipped with a special anti-short circuit protection circuit module to prevent the capacitor element from short-circuiting and burning the host during the test.
Programmable load box AC load load box
Body. The power of three-phase resistive load, inductive load and capacitive load can be independently controlled and adjusted by phase to meet the precise requirement of three-phase voltage unbalanced conditions. Adjust the AC resonance point. Grid-connected inverter anti-islanding effect test device
According to the performance parameter detection requirements, the corresponding power can be set through the operation panel or remote console, and the discharge power can be combined and set in any way.
The host adopts electronic circuit control and has an automatic alarm protection function for temperature overheating. When overheating occurs due to special reasons, the load can be automatically cut off.
() The LCD panel can simultaneously display voltage, current values, power factor, frequency, active power, reactive power, etc. It can also display voltage and current waveforms. The measurement data can be uploaded to the machine and the detection process record and storage function can be realized.
New power consumption components, high power density, no red hot phenomenon, the whole machine consists of three parts: resistive load, inductive load and capacitive load.
Power input is continuously adjustable. The load works in an energy-consuming manner, and forced air cooling is used for heat dissipation.
The measurement data of the inspection process can be recorded and saved to the remote machine (control room).
Equipped with background analysis software, measurement data can be exported into and formatted inspection reports.
The three-phase voltage and three-phase current have the value and minimum value automatic recording and storage function
The host has a voltage harmonic detection function, a current harmonic detection function, and can visually display the harmonic content in the form of a histogram.
Meet the performance testing needs of three-phase grid-connected inverters, and also meet the testing needs of single-phase low-power grid-connected inverters.
The power load can be controlled and adjusted remotely (adjusted on the control room console).
When the three-phase voltage output by the grid-connected inverter is unbalanced, it can also accurately debug the occurrence of simulated resonance points and accurately detect the anti-islanding effect protection function of the grid-connected inverter.
Technical parameters of grid-connected inverter anti-islanding effect test device
The host consists of three parts: resistive load, inductive load and capacitive load. Power factor.～adjustable.
The three-part load load is continuously adjustable by three-phase independent control switches.
The resistive, inductive and capacitive parts can be freely combined with the minimum step amplitude to meet the precise debugging of the resonance point.
Equipped with a remote console, the distance between the console and the island detection device host is meters. (Optional)
In order to prevent the grid-connected inverter from being overloaded and burning due to misoperation, it is required that the power adjustment button on the remote console can be turned off and locked.
Applicable ambient temperature range~+℃.
Connect to three phases of load voltage/(line voltage, phase voltage).
The wiring method of three-phase four-wire system or single-phase access can meet the detection needs.
The voltage accuracy is .% and the voltage resolution is .
() The frequency measurement range is.
Current measurement range.
Cooling method: air cooling. Working power supply AC/ or AC/.
The chassis itself has a control panel and an interface. The host is connected to the computer, and the measurement data of the host is transmitted to the remote machine for analysis and processing through relevant software.
The computer software can display the power value and peak-to-peak value in this test.
The following standard products of the grid-connected inverter anti-islanding effect test device meet the Beijing Jianheng/He test and inspection requirements
The resistive, inductive and capacitive load powers are respectively, meeting the capacity of grid-connected inverter of and below Device islanding protection function detection
Resistive load. Continuously adjustable, step amplitude. Three-phase resistive current can be independently displayed on the control panel
Inductive load. Continuously adjustable, step amplitude. Three phases The inductive current can be independently displayed on the control panel
Capacitive load. Continuously adjustable, step amplitude. The three-phase capacitive current can be independently displayed on the control panel.
Grid-connected inverter anti-islanding effect test device Main electrical parameters of grid-connected inverter test and detection device
Model description
Resistive load power phase independent control
Inductive load Power phase independent control
Capacitive load power phase independent control
Programmable load box AC load load box
Body. Total installed capacity
Phase independent control
The functions are: three-phase independent control, three-phase independent control, three-phase independent control, three-phase independent control to meet debugging when three-phase voltage is unbalanced
The remote power adjustment control function is equipped with a remote console,
Equipped with a remote console for convenient power input. Equipped with a remote console for convenient power input. Equipped with a remote console for convenient power input. Remote control function for convenient power input
Optional
Button controlled functions include remote power Buttons
Has a switch-off function, remote power button
Has a switch-off function, a remote power button
Has a switch-off function, a remote power button
Has a switch-off function, remote power button
Has a switch-off function to avoid overloading Resulting
Burning the inverter
Step amplitude step amplitude
Current resolution meets the precise debugging resonance point
Inductive current display, three-phase inductive current is directly and independently displayed accurately for easy adjustment Resonance point
The capacitive current is displayed, and the three-phase capacitive current is directly and accurately displayed independently to facilitate the adjustment of the resonance point
The resonance point debugging function is available, and the symptoms of each phase AC resonance are directly displayed on the control panel
Inverter output voltage phase or single phase
The control method and discharge power are continuously adjustable,
The measurement data of the storage device is directly imported into the remote machine, and the software has automatic recording and data saving functions
Display Chinese display interface, digital backlight
The display content shows three-phase voltage, current, frequency, power, power factor, voltage and current harmonic content,
The inductive current and capacitive current of each phase are directly displayed Based on the panel, current resolution, precise debugging of resonance occurrence
The test items meet the anti-islanding effect protection test, inverter efficiency test, power factor measurement test, and overload protection test of the grid-connected inverter
Supply single Phase/
Voltage measurement interface measurement range ~ resolution accuracy
Current measurement interface measurement range ~, resolution accuracy %
Temperature measurement interface measurement range ~ ℃, Resolution. ℃, accuracy ℃
Analysis software comes with free Chinese analysis software, records and stores measurement data, free lifetime upgrades
Remote console optional accessories, built-in display screen and industrial computer
Optional important functions: The console can be equipped with the optional three-phase current monitoring function at the analog grid end, please specify before ordering
Remarks: The above are standard products. We can also provide customized services according to the user’s on-site testing needs. Customized outdoor container mobile and grid-connected inverter detection device, detailed information is available on request
The technical standards referenced for the production of grid-connected inverter anti-islanding effect test device are
Grid-connected inverter test and detection device The R&D and production refer to
"Technical Requirements and Test Methods for Special Inverters for Grid-connected Photovoltaic Power Generation"
/ "Technical Requirements for Grid-connected Photovoltaic Systems",
"Inverters for Independent Power Systems" , Converter, Controller",
"Grid Connection Part 2 Inverter Requirements for Power Supply Systems Connected Through Inverters",
"Standards for Interconnection of Distributed Power Sources and Power Systems" ,
"Test procedures for interface equipment between distributed power sources and power systems",
"Anti-islanding test method for inverters used in photovoltaic grid-connected systems"
Programmable load box AC load load box
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