Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
SW2-66kV Outdoor Minimum Oil Circuit Breaker: 66kV/72.5kV, CY5 hydraulic/CD5 electromagnetic/CQ pneumatic mechanism, automatic reclosing, free tripping, anti-pollution type, transmission distribution, -30°C to +40°C, GB1984/IEC.
Advanced SW2-66kV Outdoor Minimum Oil Circuit Breaker Series: Three-phase AC 50Hz outdoor high-voltage power equipment rated 66kV (72.5kV abroad) mainly used for control and protection of transmission and distribution lines, different operating mechanisms including SW2-60Ⅰ with CY5 hydraulic mechanism performing slow action/fast action/one-time automatic reclosing, SW2-66Ⅱ/Ⅲ equipped with CD5-370X electromagnetic mechanism or CQ-300A pneumatic mechanism enabling hydraulic jack manual slow action/electric quick action/one-time automatic reclosing with free tripping performance, side-mounted mechanism option reducing floor space, SW2-66ⅢL type for no-load long lines special requirements, ordinary type and anti-pollution type available, meets GB1984-89 and IEC standards.
Multiple Mechanism Options and Anti-Pollution Features: SW2-66kV incorporates CY5 hydraulic mechanism for Types Ⅰ and Ⅱ providing slow action/fast action/automatic reclosing capabilities, CD5-370X electromagnetic mechanism or CQ-300A pneumatic mechanism for Type Ⅲ offering hydraulic jack manual operation/electric quick action/automatic reclosing with free tripping performance, side-mounted mechanism configuration optimizing installation space, anti-pollution type with specific creepage distance >25mm/kV for harsh environments, ordinary type with >17mm/kV creepage distance, operates reliably in -30°C to +40°C ambient temperature, altitude ≤1000m, wind speed ≤35m/s, earthquake intensity ≤8°, providing reliable minimum oil circuit breaking solution for 66kV/72.5kV transmission distribution systems.
| SW2-66kV Outdoor Minimum Oil Circuit Breaker Specifications | Parameter | Unit |
| Brand | Bepto Insulation Systems | – |
| Model Number | SW2-66 (SW2-72.5 Abroad) | – |
| Product Series | SW2-60Ⅰ / SW2-63Ⅱ / SW2-66Ⅲ / SW2-66ⅢL | – |
| Product Type | Outdoor Three-Phase AC 50Hz High Voltage Minimum Oil Circuit Breaker with Hydraulic/Electromagnetic/Pneumatic Mechanism for Transmission and Distribution Lines | – |
| Core Technology | Minimum Oil Circuit Breaking + CY5 Hydraulic Mechanism (Types Ⅰ and Ⅱ) + CD5-370X Electromagnetic Mechanism (Type Ⅲ) + CQ-300A Pneumatic Mechanism (Type Ⅲ) + Slow Action + Fast Action + One-Time Automatic Reclosing + Free Tripping Performance + Side-Mounted Mechanism Option + Hydraulic Jack Manual Operation + Electric Quick Action + Anti-Pollution Type + Ordinary Type | – |
| Rated Voltage | 66kV (72.5kV Abroad) | kV |
| Rated Frequency | 50 | Hz |
| Phases | Three-Phase | – |
| Installation Type | Outdoor | – |
| Minimum Oil Technology | Yes (Minimum Oil Circuit Breaker) | – |
| CY5 Hydraulic Mechanism | Yes (Types SW2-60Ⅰ and SW2-63Ⅱ) | – |
| CD5-370X Electromagnetic Mechanism | Yes (Type SW2-66Ⅲ) | – |
| CQ-300A Pneumatic Mechanism | Yes (Type SW2-66Ⅲ) | – |
| Slow Action | Yes (CY5 Hydraulic Mechanism) | – |
| Fast Action | Yes (CY5 Hydraulic Mechanism) | – |
| One-Time Automatic Reclosing | Yes (All Mechanism Types) | – |
| Free Tripping Performance | Yes (Type SW2-66Ⅲ with CD5/CQ Mechanism) | – |
| Hydraulic Jack Manual Operation | Yes (Type SW2-66Ⅲ for Manual Slow Action) | – |
| Electric Quick Action | Yes (Type SW2-66Ⅲ) | – |
| Side-Mounted Mechanism | Yes (Option to Reduce Floor Space) | – |
| No-Load Long Lines Type | Yes (SW2-66ⅢL for Special Requirements) | – |
| Ordinary Type | Yes (Standard Type) | – |
| Anti-Pollution Type | Yes (For Harsh Environments) | – |
| Specific Creepage Distance – Ordinary Type | >17 | mm/kV |
| Specific Creepage Distance – Anti-Pollution Type | >25 | mm/kV |
| Standards Compliance | GB1984-89 (Equivalent to IEC Standard) | – |
| Control and Protection | Yes (Control and Protection of Transmission and Distribution Lines) | – |
| Transmission and Distribution | Yes (Mainly Used for Transmission and Distribution Lines) | – |
| Ambient Temperature | -30°C to +40°C | °C |
| Altitude | ≤1000 | m |
| Wind Speed | ≤35 | m/s |
| Earthquake Intensity | ≤8 | ° |
| Key Advantages | Minimum Oil Technology, Multiple Mechanism Options (CY5 Hydraulic/CD5 Electromagnetic/CQ Pneumatic), Automatic Reclosing, Free Tripping, Side-Mounted Mechanism, No-Load Long Lines Type, Anti-Pollution Type, Wide Temperature Range, GB1984/IEC Compliance | – |
| Primary Applications | 66kV/72.5kV Transmission and Distribution Lines, Control and Protection, No-Load Long Lines, Harsh Environments with Pollution, Three-Phase AC 50Hz Systems, Outdoor High Voltage Power Equipment | – |
Bepto is a leading Chinese company in electrical insulation, focused on developing advanced solutions for future power systems. We support transmission and distribution safety and growth, with long-term partners including State Grid, ABB, Schneider, Siemens, and GE. Our services reach clients in over 22 countries.
Bepto focuses on the global market and provides our clients with products suitable for the local market:
Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
