HXGN17-12 box-type fixed AC metal-enclosed switchgear
Category:
Keywords: Electrical Equipment
- Description
HXGN17-12 box-type fixed AC metal-enclosed switchgear
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- Commodity name: HXGN17-12 box-type fixed AC metal-enclosed switchgear
The HXGN17-12 box-type, fixed, AC metal-enclosed switchgear (commonly referred to as a ring main unit) is a new type of high-voltage switchgear manufactured to meet the needs of urban power grid renovation and construction.
Overview
The HXGN17-12 box-type, fixed, AC metal-enclosed switchgear (commonly referred to as a ring main unit) is a new type of high-voltage switchgear manufactured to meet the needs of urban power grid renovation and construction. In power supply systems, it is used for switching load currents and short-circuit currents, as well as for making and breaking short-circuit currents. This ring main unit is equipped with FZRN25 and FZRN21 vacuum load switches, and its operating mechanism is a spring-operated type that can be operated either manually or electrically. The earthing switch and isolating disconnectors are fitted with manual operating mechanisms. The ring main unit features strong system integration, compact dimensions, and no risk of combustion or explosion, while also providing reliable “five-protection” functions.
This ring main unit complies with the relevant provisions of GB 3906 “3–35 kV AC Metal-Enclosed Switchgear” and IEC 60420 “High-Voltage AC Load Switch-Fuse Combination Apparatus.”Model and Meaning
Operating Environment Conditions
◆ Ambient air temperature: -15°C to +40°C;
◆ Altitude: 1,000 m and below;
◆ Humidity conditions: the daily average shall not exceed 95%, and the daily average water vapor pressure shall not exceed 2.2 kPa; the monthly average shall not exceed 90%, and the monthly average water vapor pressure shall not exceed 1.8 kPa; ◆ Seismic intensity: not greater than 8.
◆ Locations free from significant contamination by corrosive or flammable gases, etc.
Note: If the above normal operating conditions are exceeded, users may negotiate with our company.Main Technical Parameters
Project Unit FKN12-10 FZN25-12 Rated voltage kilovolt 12 1-minute power-frequency withstand voltage kilovolt 42 for ground and phase-to-phase; 48 for isolation gap Lightning Impulse Voltage (Peak) kilovolt 75 for ground and phase-to-phase; 85 for isolation gap Rated frequency Hertz 50 Rated current of the main busbar A 630 Load switch Rated current A 630 Electrical life at rated current next Not less than 100 Breaking capacity of no-load transformer KVA 1250 Rated thermal stability current kA/s 20/4; earthing switch 20/2 Rated dynamic stability current (peak) kA 50 Rated Short-Circuit Making Current (Peak) kA 50 Fuse rated current A 100 Rated Transfer Current A 1500 2000 Rated short-circuit breaking current kA 31.5 Fuse model to be used S□LAJ-12(XRNT□-10) Mechanical life next 2000 10000 1-minute power-frequency withstand voltage of the auxiliary circuit kilovolt 2 Operating voltage of the electric operating mechanism V AC/DC 220; 110 Protection Level IP2X External dimensions (width × depth × height) mm 650(850)×900×2000(2200)
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Henan Jinyu Electric Co., Ltd.
Service Hotline:400-688-0375
Tel:+86-18103909516
Email:hnjydq1999@126.com
Address: South Section of Chuangye Road, Ji County Industrial Cluster, Henan Province, Central Plains Electric City
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