Overview

HDHBN-12 environmentally friendly air-insulated AC metal-enclosed switchgear is an environmentally friendly switchgear developed on the basis of digesting and absorbing domestic and foreign technology and design concepts according to the development trend of the power industry and summarizing the experience of on-site service and design and construction of power distribution network for many years. The product has reasonable design, reliable power supply, compact structure, easy installation, flexible operation, small size, high cost performance, etc., and is suitable for three-phase AC 50Hz rated voltage 12kV power distribution system; It is especially suitable for receiving and distributing electric energy in power systems such as small secondary distribution stations, opening and closing stations, industrial and mining enterprises, urban residential areas, airports, railways, tunnels, and high-rise buildings.

Suitable places: smart grids, urban power distribution, buildings, industrial enterprises and other load centers of the distribution station and box-type closure station.

Technical features: adhering to the design concept of green and environmental protection in concept and thinking.

Market outlook: None or less SF6 switchgear is the technology development trend of the future.

Conditions of normal use

◆ Ambient air temperature: upper limit + 40°C lower limit -40°C

◆ Humidity: The daily average relative humidity is not more than 95%; The monthly average is no more than 90%.

◆ Water vapor pressure: the daily average value is not more than 2.2kPa; The monthly average value is not more than 1.8kPa;

◆ The altitude does not exceed 3000m.

◆ The surrounding air is not visibly polluted by dust, smoke, corrosive and flammable gases, vapors or salt spray.

◆The amplitude of electromagnetic interference induced in the secondary system shall not exceed 1.6kV.

According to the standard

◇ GB 1984 High Voltage AC Circuit Breaker

◇ GB1985 High Voltage AC Disconnector and Grounding Switch

◇ GB 3804 3.6kV~40.5kV high voltage AC load switch

◇ GB 3906 3.6 kV ~40.5kV AC metal-enclosed switchgear and control equipment

◇ GB4208 Enclosure Protection Rating (IP Code)

◇ GB/T11022 Standard for high-voltage switchgear and control equipment common technical requirements

◇ GB/T16927 1 High Voltage Test Techniques Part 1 General Definitions and Test Requirements

◇ DL/T403 12kV~40.5kV High Voltage Vacuum Circuit Breaker Ordering Technical Conditions

◇ DL/T404 3.6kV ~40. 5kV AC metal-enclosed switchgear and control equipment

◇ DL/T486 High Voltage AC Disconnector and Adapter

◇ DL/T593 Common technical requirements for high-voltage switchgear and control equipment standards

◇ JB/T 8144.2 Rated voltage 26/35kV and below power cable accessories basic technical requirements cable termination

◇ JB/T 8144.1 General provisions of basic technical requirements for power cable accessories with rated voltage of 26/35kV and below