Can export-oriented units meet international standards such as IEC 61851?

VILVA offers different equipment configurations for EV charger testing, including portable solutions for field testing and application-specific systems for laboratories, production environments, and commissioning projects. Both portable on-site models and rack-mounted units for laboratories and production lines are available. Portable units are ideal for field acceptance, while rack-mounted versions suit laboratory R&D and production-line aging tests.

The appropriate form factor depends on the required testing power, test environment, mobility requirements, control system, and available installation space. Laboratory or production-line applications may favor an integrated or fixed installation, while field acceptance and maintenance work can benefit from a more portable configuration.

Dimensions, weight, voltage range, power capacity, and connection configuration vary by model. Customers should provide the intended application and required test capacity so that VILVA can recommend a suitable equipment configuration rather than applying one standard size to all projects.

Control methods depend on the equipment model and system configuration. Local touch-screen control, host-computer software, Ethernet and RS485 are available for remote programmable control. The supporting software is provided free of charge.

For programmable load applications, VILVA supports manual programming, intelligent program control, and remote control. Parameters such as voltage, current, power, and power factor can be programmed to reproduce different load conditions, including linear adjustment, step changes, and sudden changes.

For automated production-line or laboratory applications, the control architecture can be configured around the customer's testing process and data-management requirements. The specific interfaces, communication protocols, software functions, and licensing terms should therefore be confirmed according to the selected equipment and project configuration.

Measurement accuracy is model-and-configuration-dependent and should be confirmed against the specific EV charger testing equipment selected. Different testing systems may use different measurement ranges, sensors, control architectures, and accuracy specifications according to their intended application. Standard models deliver ±0.5% FS accuracy for voltage and current.

For high-precision laboratory applications, VILVA provides programmable and precision testing equipment capable of controlled adjustment and measurement of electrical parameters. High-precision versions reach ±0.1%/+0.05% FS, meeting national standard metrology verification requirements.

For projects requiring metrology verification or a defined measurement accuracy, customers should specify the required voltage/current range, accuracy level, applicable standard, and test purpose in advance. VILVA can then confirm the applicable specification for the selected model rather than applying a single accuracy value across all EV charger testers.

VILVA's EV charger testing equipment is designed to evaluate the electrical performance, communication protocols, charging compatibility, and operational stability of EV charging equipment. Depending on the model and configuration, it can support full-load testing, performance testing, protocol communication testing, installation and commissioning, maintenance verification, and other application-specific tests.

For DC charging applications, VILVA's EVD tester can simulate the vehicle side of the charging process and includes BMS simulation functions. It supports protocol and interoperability testing for charging equipment, helping manufacturers and testing laboratories verify whether a charger operates correctly under defined charging conditions.

The applicable test items depend on the charger type, output power, communication protocol, and target market. Customers can provide their charger model, AC/DC type, rated voltage and power, and applicable standard so that VILVA can recommend the appropriate testing configuration.

Yes. VILVA supports customized load-bank solutions for projects with non-standard electrical, mechanical, or functional requirements. Depending on the application, customization can cover rated voltage, power capacity, loading steps, dimensions, control and display configuration, cooling method, installation structure, and other project-specific requirements.

The customization process begins with requirement analysis and solution design, followed by parameter calculation, material selection, production, assembly, commissioning, inspection, aging testing, calibration, and delivery. This allows the load bank to be developed around the customer's actual test equipment, operating environment, installation space, and acceptance requirements rather than forcing the project to fit a standard model.

For a customized quotation, customers can provide the required voltage, power, AC/DC type, loading method or steps, dimensions, installation environment, control requirements, quantity, and intended application. VILVA can then evaluate the technical requirements and propose a suitable configuration, including further customization where required.

VILVA provides after-sales technical support throughout the equipment service period, including troubleshooting and technical assistance for equipment operation and maintenance. Its customized-service process includes after-sales support and a lifetime maintenance system designed to help maintain stable equipment operation.

For overseas projects, initial troubleshooting can be carried out remotely based on the equipment status, operating conditions, alarms, and test data. Depending on the nature of the issue and project requirements, further technical service arrangements can be evaluated to support equipment recovery and commissioning.

To speed up troubleshooting, customers should provide the equipment model, fault description, alarm information, operating conditions, and relevant photos or videos. VILVA can then assess the issue and determine the appropriate technical-support approach.