Epoxy Insulation 20kv High Frequency Toroidal Transformer
I. Core Features
Epoxy Insulation Design
The main insulation material is epoxy resin, which offers high insulation strength (high withstand voltage), chemical resistance, moisture-proof and water-proof properties, as well as good mechanical strength. It can operate stably in humid and dusty complex environments, ensuring insulation safety under 20 kV high voltage.
20 kV Voltage Level
The input or output voltage involves 20 kV (in the medium-high voltage category), suitable for scenarios requiring medium-high voltage conversion. It can convert low voltage to 20 kV high voltage or reduce 20 kV high voltage to low voltage, meeting the voltage matching requirements of specific equipment.
High-Frequency Working Characteristics
The working frequency is much higher than that of traditional power frequency transformers (50/60Hz), usually in kHz range (such as several thousand hertz to several tens of kilohertz). It has the advantages of small size, light weight (the core loss is reduced at high frequencies, and small-sized cores can be used), and high power density, making it suitable for equipment with strict space requirements.
Ring Core Structure
The core adopts a ring design (mostly made of silicon steel sheets or ferrite materials), compared with traditional EI-type cores, it has the characteristics of shorter magnetic path, less leakage flux, and higher efficiency, which can reduce energy loss at high frequencies.
II. Typical Application Scenarios
New Energy Field: Such as in photovoltaic inverters and wind power converters, for high-voltage conversion from DC to AC.
Power Electronic Equipment: High-frequency power supplies, high-voltage testing equipment, etc., providing stable medium-high voltage output.
Communication and Rail Transit: Base station power supplies, auxiliary power supply systems for subways/high-speed railways, requiring high-frequency and compact design scenarios.
III. Summary of Advantages
Overall, this transformer combines high-voltage insulation reliability, high-frequency efficiency, and compact structure, making it a key component in medium-high-frequency power conversion scenarios.