How is technical support provided in case of faults? Is operator training available?

Yes. VILVA supports customized testing solutions for both load banks and EV charger test equipment when standard configurations do not fully match the application requirements. Depending on the project, customization can involve voltage, power capacity, loading steps, dimensions, cooling method, control configuration, communication interfaces, testing functions, and other application-specific requirements.

The customized-service process covers requirement analysis, solution design, parameter calculation, material selection, production, assembly, commissioning, inspection, aging testing, calibration, delivery, and after-sales service. This allows the equipment to be configured around the customer's actual test object, operating environment, installation space, and acceptance requirements.

For a customized quotation, customers should provide the equipment under test, AC/DC type, rated voltage and power, required loading conditions, test items, applicable standards, installation environment, dimensions, quantity, and desired delivery schedule. VILVA can then evaluate the requirements and propose a suitable standard or non-standard configuration.

Warranty coverage and calibration requirements depend on the equipment model, measurement system, and contractual terms. A standard warranty covers the complete equipment, with separate warranty terms for core components. VILVA provides after-sales service and a lifetime maintenance system, while specific warranty periods and covered components should be confirmed in the quotation and sales contract. 

For measurement equipment used in applications requiring traceable or regulated measurements, calibration should be performed according to the applicable metrology requirements, instrument specifications, operating conditions, and customer's quality-management procedures. An annual calibration cycle may be appropriate for some applications.

VILVA has experience providing testing equipment for EV-charging applications, including projects involving EV charger manufacturers and international charging standards. Relevant industry reference cases can be provided on request.

VILVA's EV charger testing product line also supports testing requirements associated with different charging standards and communication protocols, including GB/T, ISO 15118, DIN 70121, IEC 61851, IEC 62196, and CHAdeMO 1.2/2.0, depending on the equipment configuration. This enables the testing systems to be adapted to different regional charging technologies and customer requirements.

For customers evaluating a similar solution, relevant project information can be discussed based on the application. Customers can provide the charger type, rated power, charging standard, required test functions, and target market to determine whether a comparable reference configuration is available.

VILVA selects electronic and electrical components according to the equipment configuration, electrical specifications, reliability requirements, and application environment. Its customized-service information identifies internationally recognized component brands.

For critical resistive components, VILVA also has in-house R&D and manufacturing capabilities. Its independently developed alloy resistors allow the company to maintain greater control over key component design and production while integrating other electrical, measurement, and control components according to project requirements.

The exact component brands may vary by model and configuration. For projects with specified component-brand requirements, customers can provide the preferred brand list or technical specification during the quotation stage so that VILVA can confirm compatibility and availability.

VILVA follows inspection and commissioning procedures before equipment delivery. Its customized-service process includes assembly, commissioning, inspection, aging testing, calibration, and delivery, helping verify equipment performance before shipment.

For customized testing equipment, the inspection scope can be defined according to the agreed technical specification and project requirements. Depending on the equipment, this may include electrical performance verification, functional testing, load operation, control-system checks, and other applicable inspection items.

For an official factory inspection report, it should be confirmed according to the product model and sales contract. Customers with special acceptance requirements can provide their inspection checklist or test protocol in advance so that the applicable factory testing and documentation can be incorporated into the project.

Portable EV charger test units are particularly suitable for applications where testing equipment needs to be moved between charging stations or deployed directly at the installation site. Typical applications include on-site charger acceptance, charging-station operation & maintenance, fault diagnosis and random field inspections.

VILVA's portable DC charging-pile tester is designed for full-load testing, production workshops, laboratories, installation and commissioning, maintenance, and upgrade or modification testing. For field applications, the required voltage range, output power, charging standard, communication protocol, and test functions should be confirmed in advance. VILVA can recommend a suitable portable configuration according to the charger type and intended inspection scenario.