Scope of Application
 

XL-A823 AC Charging Pile Verification Instrument Calibration Device Integrates a three-phase AC standard meter (0.01 level/0.02 level optional) and a three-phase AC power source (stability 0.01%) into one unit, adopting a modular design. The three-phase AC standard meter, clock unit, and other standards are detachable for inspection. According to relevant calibration regulations, it can be used for initial calibration, subsequent calibration, and in-use inspection of electric vehicle AC charging pile verification instruments. It is suitable for accuracy testing and calibration of charging equipment testers, establishing a metrological traceability system for charging equipment testers by metrology departments, power departments, and testing agencies. It is also suitable for charging pile manufacturers requiring factory test calibration of charging equipment testers and is compatible with European standard seat detection.

Main Features

• High Accuracy: Power and energy accuracy level 0.01, built-in 0.01 level three-phase AC standard meter, three-phase power source with 0.01% stability.
• Wide Range: Output measurement range 50V-300V, 0.01A-100A.
• Real Load and Virtual Load Calibration Modes: Supports two modes: simulated real load detection mode and virtual load detection mode, switchable by program/manual; in real load detection mode, voltage and current are not isolated, simulating the on-site test environment of the charging pile verification instrument, including the effects of contact and impedance; in virtual load detection mode, there is a separate calibration port, voltage and current are isolated, excluding the effects of contact and impedance.
• Connector Metering Mode: The energy metering point inside the calibration device is set at the charging gun head (pile side), with precise compensation for the charging gun line resistance to ensure matching with the verification instrument and charging pile metering points.
• Plug and Test: Through the national standard AC charging gun cable and AC charging gun cable, it can be directly connected to the verification instrument to carry out calibration work without additional adapter cables.
• One-Key Detection: All the above modes support manual/program control switching and can complete charging machine calibration with one key, avoiding operational errors.
• Simulate Complex On-Site Working Conditions Testing: Voltage and current can output AC signals with dynamic metering characteristics to simulate application conditions for metrological verification of AC charging pile verification instruments.
• Millisecond-Level Energy Accumulation: Millisecond-level energy accumulation register update rate improves the test accuracy of accumulated energy under dynamic waveforms.
• Flexible Configuration: The device accuracy level can be configured by selecting standard meters with different readiness levels.
   

Main Functions
 

• According to relevant calibration regulations, it can perform initial calibration, subsequent calibration, and in-use inspection of electric vehicle DC charging machine verification instruments. Initial calibration, subsequent calibration, and in-use inspection.
• According to relevant calibration regulations, it can perform initial calibration, subsequent calibration, and in-use inspection of electric vehicle AC charging machine verification instruments.
• The AC charging pile verification instrument calibration device is level 0.01, with built-in 0.01 level three-phase AC standard meter and clock unit, both detachable for easy inspection.
• The device has a built-in three-phase AC standard source supporting harmonic superposition output.
• The device supports two modes: simulated real load detection mode and virtual load detection mode. The simulated real load detection mode can simulate the real load test environment of on-site charging pile detection, including the effects of contact and impedance; the virtual load detection mode has a separate calibration interface, excluding the effects of contact and impedance; both modes can be switched programmatically or manually, facilitating automatic calibration of the whole machine.
• All mode switches support program control and can complete charging machine calibration with one key, avoiding operational errors.
• The device has AC charging gun interface and AC charging socket interface, allowing plug-in connection to the charging pile verification instrument without complex wiring.
• Equipped with conventional standard meter wiring terminals, it can be used as a standard meter calibration device to carry out calibration of conventional AC standard energy meters.
• The device has excellent temperature stability, with core components being military-grade products with temperature coefficients as low as 1PPM.
• The built-in standard power source uses hardware PID technology, with high stability and extremely fast response, response time at millisecond level.
• All modules inside the device communicate and interconnect, controllable via a single RJ45 communication port for easy connection.
• The device has comprehensive protection functions including overcurrent, overvoltage, overheating, short circuit, open circuit, and overload protection.
• Equipped with powerful and easy-to-operate software, it can complete testing of AC charging pile verification instruments according to calibration regulations and generate test reports with one key. It can run on industrial control computers or PCs.
• Can be paired with high and low temperature test chambers to carry out calibration capability for "Extreme Working Error" as specified in JJG 1193-2023 "Calibration Regulations for Electric Vehicle AC Charging Pile Verification Instruments."