5kVA 50kV Power Frequency PD-Free Test System and Testing Equipment for Transformer Switchgear Cable Factory Insulation Testing and Partial Discharge Free Voltage Application

5kVA/50kV Power Frequency PD-Free Test System

The 5kVA/50kV Power Frequency PD-Free Test System is developed for transformer manufacturers and electrical equipment producers requiring a clean AC high-voltage testing environment. Compared with conventional withstand voltage equipment, this system focuses on reducing the influence of test equipment-generated partial discharge during insulation verification.

The complete solution consists of a Motorized Operation Console, Power Supply Unit, Partial Discharge-Free Test Transformer, and Capacitive Voltage Divider. The motorized console controls the voltage rising process, the PD-free transformer generates stable AC high voltage with low discharge characteristics, and the voltage divider provides accurate output measurement for test monitoring.

This system is suitable for insulation evaluation where test reliability and background discharge control are important factors.

• Low Partial Discharge Background — Helps create a cleaner testing environment for insulation evaluation.
• Complete PD-Free Testing Package — Includes control, power supply, high-voltage generation, and voltage measurement units.
• Stable AC High Voltage Output — Provides reliable voltage application during testing procedures.
• Electric Control Operation — Simplifies voltage adjustment compared with traditional manual systems.
• Accurate Voltage Monitoring — The capacitive divider supports precise high-voltage measurement.
• Suitable for Transformer Testing — Designed for manufacturers focusing on insulation quality verification.

1. Power transformer insulation testing
2. Distribution transformer quality inspection
3. Transformer development laboratories
4. High-voltage component evaluation
5. Electrical equipment acceptance testing
6. Insulation performance verification

Q1: What is the main difference between a PD-free system and a normal AC withstand system?

A: A PD-free system is designed to minimize discharge generated by the test equipment itself, providing a cleaner testing environment.

Q2: Which industries commonly use this system?

A: It is mainly used by transformer manufacturers, electrical laboratories, and testing organizations.

Q3: What components are included in the system?

A: The standard system includes a motorized console, power supply, PD-free test transformer, and capacitive voltage divider.

Q4: Can the system be customized for different transformer ratings?

A: Yes. Different voltage and capacity configurations can be developed according to testing requirements.