Product Overview
The disconnector is a core isolation device for high voltage distribution systems. It is suitable for three-phase 50Hz indoor/outdoor distribution systems ranging from 6kV to 35kV. Composed of conductive parts, insulating parts, and an operating mechanism, its main functions are to isolate power sources and switch no-load circuits. It is widely used for maintenance isolation of substations, distribution lines, transformers, and other equipment.
The product is available in indoor and outdoor types, made of high-quality conductive materials and insulators. It complies with standards such as GB/T 1985-2014 and holds CCC certification. Features include reliable insulation and flexible operation. Rated parameters and protection levels can be customized to suit various high voltage isolation applications.
Operating Conditions
1. Ambient Temperature: Indoor -20°C to +45°C, outdoor -40°C to +45°C (24h average ≤ +35°C)
2. Altitude: ≤ 1000m (customizable up to 3000m for special conditions with optimized insulation performance)
3. Relative Humidity: ≤ 95% at +25°C; anti-condensation device for indoor use; anti-pollution sealed design for outdoor use
4. Installation Site: Indoor – suitable for distribution rooms; Outdoor – suitable for open areas, free from vibration and corrosive gases
5. Protection Rating: Indoor IP33~IP44, outdoor IP54~IP65 (anti-pollution type customizable); Pollution degree ≤ Class IV
6. Installation Requirements: Vertical/horizontal installation; spacing ≥ 25cm; secure wiring and reliable grounding; sufficient space for operation
Technical Parameters
Parameter | Unit | Value |
|---|---|---|
Rated Voltage | kV | 6, 10, 35 (standard), customizable; suitable for indoor/outdoor use |
Rated Current | A | 100, 200, 400, 630, 1250 (full series, customizable) |
Rated Short-time Withstand Current | kA | 16, 20, 25, 31.5 (standard); reliable withstand performance |
Insulation Level | kV | Lightning impulse withstand ≥ 95kV; power frequency withstand ≥ 42kV |
Structure Type | — | Indoor/outdoor type; single-pole/three-pole; manual/electric operation optional |
Protection Rating | — | Indoor IP33~IP44, outdoor IP54~IP65 (anti-pollution type customizable) |
Operation Mode | — | Primarily manual; electric operation customizable; light and flexible operation |
Product Features
1. Precise Isolation & Safe Reliable: Suitable for 6kV–35kV systems; effectively isolates power sources to ensure maintenance safety.
2. Excellent Insulation & High Withstand Capability: High-quality insulating materials resist pollution and corona; strong short-time withstand current; no leakage risk.
3. Flexible Operation & Easy Maintenance: Manual/electric operation optional; light operation; only routine inspection required.
4. Robust Structure & Strong Environmental Resistance: Outdoor models with high protection ratings resist extreme temperatures, rain, and snow; suitable for harsh conditions.
5. Excellent Conductivity & Ultra-Low Loss: High-quality copper alloy conductors with low contact resistance; minimal energy consumption and high efficiency.
6. Wide Adaptability & Flexible Customization: Indoor/outdoor options; customizable parameters and operation modes for multiple scenarios.
7. Long Service Life & High Cost-effectiveness: Service life ≥ 15 years; high number of operations; low maintenance cost.
Our Advantages
1. Strong customization capabilities – rated parameters, structures, and operation modes tailored to various high voltage isolation needs.
2. Standardized production with full quality control – each unit comes with a factory test report for consistent and reliable performance.
3. Full certifications – compliant with national standards and material requirements, meeting high voltage distribution project acceptance criteria.
4. Reliable delivery – supports urgent orders, accompanied by installation guidance for quick commissioning.
5. Comprehensive after-sales service – full life-cycle support, including troubleshooting and component replacement guidance with rapid response.
Ordering Guide
Please provide the following information to ensure the product perfectly matches your needs:
1. Rated voltage, rated current, and short-time withstand current – to match the corresponding high voltage system.
2. Installation environment (indoor/outdoor) and pollution degree – whether an anti-pollution or high-altitude type is required.
3. Product model and number of poles – select operation mode (manual/electric).
4. Installation method and available space – whether mounting accessories or lifting lugs are required.
5. Application scenario – whether special features like enhanced anti-pollution or anti-corona performance are needed.
