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RH-B-F2
This air break switch operates on 27kV AC power systems with a rated frequency of 50Hz or 60Hz, adapting to common power grid specifications across different regions. As an outdoor-rated disconnector, it is installed directly in open-air environments without additional protective enclosures, reducing construction and equipment costs for outdoor distribution projects.
The device performs no-load switching operations, meaning it disconnects or connects circuits when no load current is present in the line. This design ensures operational safety for maintenance personnel and provides clear physical isolation between live parts and de-energized sections of the system. For industrial applications with regular equipment inspection and line upgrade schedules, this switch supports flexible power system reconfiguration without extended downtime for auxiliary facility construction.
Haivo designs this series of disconnectors to match standard pole mounting and station base mounting configurations, compatible with common high-voltage line hardware and installation structures in global markets. It can be operated manually with an insulated operating rod, or paired with motorized operating mechanisms for remote control requirements in automated distribution systems.
The two models adopt differentiated arc extinguishing structures to match different breaking demands. The RH-B-F1 model uses high-speed stainless steel whips to form an air cutoff device, supporting a rated breaking capacity of 50A. The upgraded RH-B-F2 model adds independent arc quenching chambers inside, lifting the rated breaking capacity to 100A to cope with more frequent switching operations. All exposed conductive components adopt anti-corrosion treatment, adapting to long-term outdoor exposure under salt fog, sand and heavy pollution environments.
The whole switch is designed as an integrated three-phase linkage structure to ensure synchronous opening and closing of three poles. All rotating joints are equipped with matched connecting parts to reduce operating resistance. The overall structure supports both horizontal and vertical pole-top installation, which is compatible with most standard pole mounting accessories used in global outdoor distribution lines. No extra customized brackets are required for conventional installation scenarios.
This 27kV air break switch maintains rated current carrying capacity under continuous operation, with temperature rise values controlled within standard specified ranges. Its lightning impulse withstand level and power frequency withstand voltage meet the insulation requirements for 27kV distribution systems, reducing the risk of insulation breakdown caused by overvoltage.
The three-phase linkage structure ensures synchronous operation of all poles, avoiding phase-to-phase asynchronous issues during switching operations. The switch has a clear on-off indication structure, allowing on-site operators to directly confirm the disconnection status from the ground. Its contact system adopts a self-cleaning contact structure, which maintains stable contact performance after multiple switching operations. For distribution lines with frequent switching operations, the mechanical life of the switch supports thousands of operation cycles without replacement of core components.
Parameter Item | RH-B-F1 (11-15kV) | RH-B-F2 (11-15kV) | RH-B-F1 (24-27kV) | RH-B-F2 (24-27kV) | RH-B-F1 (33-38kV) | RH-B-F2 (33-38kV) |
Rated Voltage (kV) | 11-15 | 11-15 | 24-27 | 24-27 | 33-38 | 33-38 |
Rated Continuous Current (A) | 400-600 | 400-600 | 400-600 | 400-600 | 400-600 | 400-600 |
Rated Breaking Capacity (A) | 50 | 100 | 50 | 100 | 50 | 100 |
Rated Short Time Withstand Current (kA) | 16 | 16 | 16 | 16 | 16 | 16 |
Rated Peak Withstand Current (kA) | 40 | 40 | 40 | 40 | 40 | 40 |
BIL (kV) | 95 | 95 | 150 | 150 | 170 | 170 |
Before field installation, inspect the integrity of insulators, conductive contacts and manual operating mechanisms to check for damage during transportation. Installers can choose horizontal or vertical pole-top installation mode according to actual line layout. Fix the switch firmly on the pole and adjust the horizontal level to guarantee synchronous three-phase movement. After mechanical installation, complete 3-5 no-load manual opening and closing tests to verify flexible operation before connecting to live distribution lines.
Routine maintenance focuses on visual inspection of insulator surface contamination and contact oxidation conditions. Regular cleaning is required for switches deployed in industrial pollution zones and coastal saline areas. There is no need for frequent internal component replacement thanks to air insulation structural design. The manual operating mechanism requires regular lubrication to maintain stable operating torque for long-term outdoor use. Complete operation guidelines and maintenance documents are provided for commercial procurement projects.
For daily maintenance, teams shall conduct regular visual inspections to check for insulator cracks, contact oxidation, and fastener looseness. Cleaning of insulating parts shall be arranged according to local environmental pollution levels, to prevent surface flashover caused by dust and dirt accumulation. Lubrication of rotating parts is recommended once every 12 months for equipment in normal outdoor environments, and once every 6 months for equipment in heavily polluted or coastal areas. For commercial procurement teams planning long-term operation, Haivo provides corresponding operation manuals and spare part supply services.
This switch is suitable for 27kV overhead distribution networks, outdoor substations in industrial parks, rail transit power supply lines, mining power systems, and new energy distribution stations. It applies to scenarios that require visible isolation points for circuit maintenance and equipment replacement.
The standard configuration operates in ambient temperatures from -40℃ to +40℃, at altitudes not exceeding 1000m. For high-altitude, heavily polluted, or high-humidity environments, customized configuration options are available to adapt to corresponding working conditions.
This series of air break switches is designed and produced in accordance with IEC 62271-102 standard for high-voltage disconnectors. It meets the electrical performance and mechanical performance requirements for outdoor high-voltage distribution equipment.
