Product Introduce
The YDJ Series is a versatile high-voltage test system developed for insulation withstand voltage testing under AC power-frequency and DC high-voltage conditions. It combines a dedicated control unit with a test transformer to provide a complete and practical solution for high-voltage test operations.
The control cabinet/console and boosting transformer are independently configured, allowing users to select a suitable system according to the required test voltage, capacity, and application. This flexible structure makes the equipment adaptable to different high-voltage testing environments.
With a focus on operational safety, equipment stability, easy servicing, and mobility, the YDJ series is particularly suitable for power maintenance departments, substations, power plants, electrical equipment manufacturers, metallurgical facilities, railway systems, and scientific research laboratories.
The system can be used to verify the insulation performance of various high-voltage electrical apparatus, components, and insulating materials, helping identify insulation defects before equipment is placed into service. Its compact design and convenient transportation make it suitable for both laboratory testing and on-site field applications.
Product Advantages
- Adaptable to Different Test Setups: Modular control and boosting units can be matched freely, providing a flexible solution for various voltage levels and testing applications.
- Optimized Engineering Design: A rational and space-saving structure simplifies equipment arrangement, transportation, and operation.
- One System, Multiple Test Functions: Designed for both AC and DC withstand voltage testing, combining portability with practical field-test flexibility.
- Higher Voltage Through Cascade Connection: The system can work as a standalone unit or connect several boosting units in cascade when higher test voltages are required.
- Control Modes for Different Users: Choose from manual, electric, automatic, or industrial computer-based control to suit laboratory technicians and field operators.
- Digital Test Record Management: Optional printer, USB port, and computer interface support test-result storage, data transmission, and report generation.
- Designed for Diverse Insulation Conditions: Oil-immersed, dry-type epoxy, SF₆-insulated, and corona-free versions are available to meet laboratory, factory, and field-site testing needs.
Typical Applications
- Power Grid & Substation Acceptance: Supports insulation withstand testing during equipment installation, commissioning, hand-over and scheduled preventive maintenance in substations and power distribution systems.
- High-Voltage Electrical Equipment: Applicable to dielectric strength verification of switchgears, transformers, CTs/PTs, surge arresters, cables, bushings and other high-voltage apparatus.
- Electrical Product Manufacturing: Used by manufacturers for factory inspection, routine testing and type testing of HV components, insulation systems and insulating materials.
- Industrial & Transportation Systems: Suitable for maintenance and insulation diagnostics of HV electrical installations used in railways, power generation, mining, metallurgy and other heavy industries.
- Laboratory & Academic Research: Meets the testing needs of universities, R&D centers and electrical laboratories for high-voltage insulation experiments, material evaluation and related research.
FAQ
1. What is an AC Power Frequency Withstand Voltage Test Set used for?
The AC Power Frequency Withstand Voltage Test Set is a high-voltage testing system used to verify the insulation strength of electrical equipment under a specified power-frequency AC voltage. By applying the required test voltage for a defined period, it helps identify insulation defects and determine whether the equipment meets the applicable withstand voltage requirements. The system normally includes a control console and a high-voltage test transformer.
2. Which electrical equipment can be tested?
This equipment is suitable for a wide range of high-voltage insulation tests. Typical applications include power transformers, voltage transformers, current transformers, high-voltage bushings, insulators, circuit breakers, switchgear, power cables, and other electrical components. It is commonly used in substations, power plants, electrical factories, HV test laboratories, research facilities, and field service operations.
3. Which types of high-voltage test transformers can be selected?
We provide multiple test transformer structures to accommodate different voltage and capacity requirements. Available configurations include ultra-lightweight, dry-type, oil-immersed, gas-type, insulating-cylinder, and corona-free test transformers. Selection can be made based on the required output voltage, test capacity, insulation level, portability, and application environment.
4. Is a complete test system available?
Yes. A complete AC withstand voltage testing solution can integrate the control section and high-voltage boosting section into one system. Depending on the customer's preferred operating method, the control unit can be configured with pointer meters, digital displays, manual controls, electric controls, intelligent control functions, or industrial computer-based operation. This allows the equipment to be tailored to different testing procedures and automation requirements.
5. Is the equipment suitable for portable field testing?
Yes. The system can be designed for both fixed laboratory use and mobile field testing. For on-site applications, compact and lightweight test transformer configurations can be selected to improve transportation and setup efficiency. For laboratory or factory applications, larger-capacity systems can be configured to meet more demanding high-voltage testing requirements.
