AC Dielectric Test System‑Power Frequency High Voltage Hipot Withstand Voltage Test System for Transformer, Cable and Electrical Equipment Insulation

Product Introduction

The power-frequency withstand voltage test system is designed to verify the insulation performance of high-voltage electrical equipment under specified AC or DC test conditions. It is widely applied in power utilities, industrial facilities, mining operations, laboratories and research organizations. The complete system consists of a control unit and a high-voltage boosting unit, which can be configured according to different testing requirements.

Main Features

• Flexible System Configuration — A broad range of specifications with excellent component compatibility, allowing the control and high-voltage units to be matched according to specific test requirements.
• Robust & Practical Construction — Engineered with a well-balanced mechanical layout and durable components for dependable operation in demanding testing environments.
• AC/DC Dual-Mode Testing — Supports both AC power-frequency and DC withstand tests in one system, with a compact design for easier transportation and field deployment.
• Scalable High-Voltage Output — Individual units can operate independently, while multiple boosting units can be connected in series to achieve higher test voltages.
• Configurable Control Methods — Available with manual, electrically operated, automatic or industrial-PC-based control to accommodate different levels of testing automation.
• Convenient Data & Communication Functions — Optional printer, USB interface and computer connectivity are available for test data recording and management, with Chinese-English bilingual operation supported.
• Adaptable Insulation Structures — Various transformer configurations, including oil-immersed, epoxy resin dry-type, SF₆-insulated and corona-free designs, are available for different voltage levels and operating environments.

Applications

Designed for a wide range of electrical testing environments, the system can be deployed by power utilities, generating stations, substations, railway operators, metallurgical and mining companies, industrial facilities, research organizations and independent testing laboratories.​

Testing Scope

The equipment is suitable for AC power-frequency and combined AC/DC insulation withstand testing of various high-voltage electrical assets, including:​

• High-voltage switchgear and switchboards​
• Power cables and cable systems​
• Current and voltage transformers​
• Surge arresters​
• Insulators and bushings​
• Other electrical insulation components and materials​

It provides a practical solution for equipment commissioning, preventive maintenance, insulation verification and laboratory testing across different high-voltage applications.

FAQ

Q1. Can the system be customized according to the test voltage and capacity?
A: Yes. The system can be configured according to the required test voltage, test capacity, control mode, transformer insulation type and application environment. This makes it suitable for both laboratory and field testing.

Q2. Can higher test voltages be achieved by connecting test transformers in series?
A: Yes. For applications requiring higher test voltages, multiple compatible test transformers can be connected in series to achieve the required output voltage. The exact configuration should be selected according to the test voltage, load capacity and safety requirements.