Product Overview

The RHD Series Vacuum Circuit Breaker redefines high-voltage power control with 'tailor-made customization' and cutting-edge vacuum technology. It features a sealed vacuum interrupter (vacuum degree ≤10⁻⁴Pa) that delivers lightning-fast arc extinction (<10ms) --no SF6, no pollution, just eco-friendly, efficient current interruption. Covering standard 40.5kV-252kV grades and supporting full non-standard voltage/current customization, it perfectly fits your grid upgrade, new construction, or special industrial needs, standing as the trusted choice for high-demand high-voltage scenarios.

About Customization

We offer all-round customization to match your exact requirements: single-phase/two-phase/three-phase configurations, plus non-standard voltage (12kV-252kV) and current (1250A-6300A) solutions. Examples include 1250A 75kV, 3200A 46kV, 60kV, 69kV, and 75kV -- whatever your grid specs, we craft a seamless-fit breaker.

Every unit is fully assembled and rigorously tested at our factory before direct delivery. No on-site disassembly or high-voltage testing needed -- saving you valuable time and costs.

Features

• 9-Grade Seismic Resistance：Low-center-of-gravity design withstands up to 9-degree earthquake intensity, ensuring rock-solid performance in seismic-prone areas -- a proven advantage of the RHD series.

• Ultra-Efficient Arc Extinction & Long Lifespan：Vacuum medium's superior arc-extinguishing capability enables ≥50kA rated short-circuit breaking current. Boasting over 10,000 electrical operations and 10,000 mechanical cycles, it slashes replacement and maintenance costs.

• Zero-Pollution Eco-Friendly Design：No SF6 or greenhouse gases -- eliminates leakage risks and environmental impact, aligning with global green energy trends and strict eco-standards.

• Modular Flexibility for Any Layout：On-demand built-in current transformers (up to 15 for measurement/protection) and standardized module interfaces enable flexible combinations. Ideal for space-constrained substations and diverse design needs.

• Extreme Environmental Adaptability：Thrives in harsh conditions: -40℃ to +55℃ ambient temperature, 32K daily temperature difference, 3,000m altitude, Class IV air pollution. Resists 700Pa wind pressure (34m/s) and 20mm icing -- reliable anywhere.

• Comprehensive Safety Protection：Anti-mis operation interlocking devices prevent human-error accidents. Pre-delivery lightning impulse tests eliminate insulation discharge risks, ensuring uncompromised quality.

• Maintenance-Free Spring Mechanism：Oil-free, gas-free spring-operated structure delivers stable performance, low noise, and high reliability -- cutting long-term operational workload to zero.

Technology Parameters

Application Scenarios

1. Large Hub Substations:Perfect for 220kV+ key hub substations, its customized voltage adaptability seamlessly integrates into existing/upgraded grids, safeguarding main power circuits with unbeatable stability.

2. New Energy Grid-Connection Systems:Ideal for wind/solar power base high-voltage connections. Custom specs and eco-friendly design ensure renewable energy smoothly feeds into the main grid -- even for projects with unique voltage demands.

3. Industrial High-Voltage Power Systems:Tailored for metallurgy, chemicals, and other heavy industries with specialized voltage needs. Robust performance and frequent-operation adaptability guarantee uninterrupted power for high-power equipment.