Variable Frequency Series Resonance Test System High Voltage AC Resonant Test Device for Field On-site Test

Product Description

The SXBP Variable Frequency Series Resonance Test System is a professionally engineered high-voltage testing platform developed for AC withstand voltage verification of large-capacity power equipment. It is designed to address the practical challenges of on-site testing, including limited power supply, heavy equipment transportation, complex test objects, and the need for accurate, repeatable results.

Core Advantages

1. Customized Configuration for Complex Test Objects

Every project has different test requirements. The SXBP system can be tailored by adjusting reactor combination, output voltage, current capacity, and frequency range, ensuring it matches the actual capacitive load rather than forcing the customer to adapt to a standard machine.

2. Lower Demand for On-Site Power Capacity

By operating at series resonance, the system achieves high test voltage with relatively low input power. In practical field applications, testing can often be completed using a standard 380 V industrial power supply, which reduces the requirement for large on-site generators or temporary power upgrades.

3. Intelligent Frequency Tracking and Stable Resonance

The variable frequency control unit automatically searches for and locks the resonant frequency, improving test efficiency and reducing operator dependency. With a frequency adjustment resolution of 0.1 Hz and instability of ≤ 0.05%, the system maintains accurate and stable output even under changing field conditions.

4. High Purity Sine Wave Output for Reliable Testing

The SXBP system delivers a pure sine wave output with a total harmonic distortion of ≤ 1%. This is important for avoiding unnecessary dielectric stress and ensuring that test results reflect the true insulation condition of the equipment under test.

5. Modular Design for Easier Transportation and Setup

High-voltage reactors are the bulkiest part of traditional test systems. The SXBP modular structure allows users to arrange reactors in series or parallel according to test requirements, improving flexibility and making field deployment more manageable.

Technical Parameters

Application

• AC withstand voltage testing of 110 kV, 220 kV, and 500 kV XLPE power cables
• On-site commissioning and maintenance testing of GIS and high-voltage switchgear
• Withstand voltage testing of power transformers, instrument transformers, and bushings
• Testing of CVT, coupling capacitors, capacitive voltage transformers, and similar apparatus
• Acceptance tests for substations, transmission lines, and electrical installation projects
• Periodic preventive testing for power utilities and industrial power systems

FAQ