Product Introduction
DC reactors are inductive components specifically designed for DC circuits. They generate a stable inductive effect through coil winding (air-core or iron-core), serving as the core "current filter" and "energy buffer" in DC systems. Essentially, they leverage their inductive properties to suppress sudden current fluctuations and smooth voltage variations, ensuring safe and stable DC system operation.
Product Picture
Technical Advantages
Low-Loss Design for Energy Efficiency
The DC reactor employs an amorphous alloy core or hollow structure, reducing iron loss by 60% compared to traditional silicon steel laminations. Its temperature rise remains below 45°C at full load, enabling reliable operation in extreme environments (-40°C to +70°C).
High Linearity and Precise Control
The inductance value varies by <2% per 100A, ensuring stable filtering under dynamic DC system loads (e.g., electric vehicle charging/discharging). This prevents control failures due to inductor saturation.
Compact Structure for Space Efficiency
Using three-dimensional winding technology and an integrated heat dissipation design, the DC Reactor achieves a 30% size reduction compared to similar products. It supports both vertical and horizontal cabinet installation, making it ideal for space-constrained DC distribution systems, charging stations, and other applications.
production equipment
Application Scenarios
New Energy Power Generation
Improves grid connection efficiency and protects equipment.
Photovoltaic Inverters
Problem: Fluctuating sunlight causes high current harmonics (THD up to 15%–20%), reducing inverter efficiency.
Purpose: Filters harmonics to reduce current ripple below 3%, improving efficiency by 1.5%–2.3%.
Industrial Drives
Extends equipment life and reduces maintenance costs.
High-Voltage Inverters
Problem: PWM harmonics lead to motor overheating, insulation degradation, and accelerated bearing wear.
Purpose: Harmonic suppression reduces THD from 25% to 5%, lowering motor temperature rise by 5–8°C.
Rail Transit
Ensures power supply security and improves energy efficiency.
Metro Braking Energy Regeneration
Problem: DC bus voltage surges (up to 1800V) during train braking, threatening equipment safety.
Purpose: Smoothes current peaks and, combined with energy storage, achieves 18% energy savings.
About the factory
FAQ
Q:What is a DC reactor used for?
A:It suppresses current fluctuations and harmonics, protects equipment (such as photovoltaic inverters and motor drives), and improves system stability.
Q:How to choose a model?
A:Consider three key parameters:
Rated current: Choose a model at least 20% higher than the system's maximum current.
Voltage level: Match the system's DC voltage (e.g., for an 800V system, choose a reactor ≥1000V).
Inductance: Calculate based on harmonic suppression requirements (e.g., suppressing the fifth harmonic requires a specific value).
Q:What precautions should be taken during installation?
A:Proper ventilation: Do not block heat dissipation holes to avoid high temperatures.
Moisture and dust resistance: For indoor use, choose a model with an IP rating of IP54 or higher.
Wiring: Connect the positive and negative poles as indicated. Do not reverse or short-circuit.
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