Product Overview

Capacitive equipment such as transformers, GIS systems, SF6 switches, CT/PTs, insulators, busbars, cables, and sleeves are common primary electrical equipment in substation settings. According to the test code for withstand voltage of primary electrical equipment in substation rated at 220V and below, the corresponding AC/DC withstand voltage test equipment must meet both high-voltage, low-current test conditions and low-voltage, high-current test conditions. It requires a broad application range and is designed using the principle of series resonance. The main equipment consists of a variable frequency power supply control cabinet (console), an excitation transformer, reactors, and a capacitive voltage divider. By connecting a rectifier silicon stack and a microammeter to the capacitive voltage divider, a DC withstand voltage test can be completed. Due to the excellent filtering characteristics of the system after resonance, the produced DC voltage is superior to that obtained from a regular test transformer rectifier. It is the ideal withstand voltage equipment for local, municipal, and county-level high-voltage testing departments, as well as for power installation, maintenance, and testing engineering units.

Product Alias

Dielectric Breakdown Resonant Device, Variable Frequency Resonance, Variable Frequency Series Resonance, Series Resonance, Series Resonant Transformer, Variable Frequency Series Resonance Dielectric Breakdown Equipment, Series Resonance Test Equipment

Product Features

1. Transformers with the same voltage and capacity are smaller in size and lighter in weight; they have a low temperature rise under rated load; they are made with dry epoxy casting, offering high mechanical strength, excellent electrical insulation performance, and are aesthetically pleasing and reliable.

2. The frequency conversion power supply control box features large capacity margin, strong protection functions, excellent output waveform, good stability, multiple working modes for easy operation; compatible with single-phase 220V or three-phase 380V input power sources, convenient for on-site power access.

3. Flexible Configuration: Optional different types of reactors to meet various sample requirements, achieving multi-functional use with high cost-performance ratio.

Technical Indicators:

Rated output voltage: 0-1000kV and below

Output Frequency: 30-300 Hz

Resonant Voltage Waveform: Pure Sine Wave, Waveform Distortion Rate ≤ 1.0%

Work Hours: Continuous Operation at Full Power for 60 Minutes

Quality Factor: 30-90

Frequency Regulation Sensitivity: 0.1 Hz

Unstable Degree < 0.05%

Operational Power: Single-phase 220V or three-phase 380V ±10%

50Hz ± 5% frequency