HXGN15-12 unit type AC metal-enclosed ring network switchgear
Category:
Keywords: Electrical Equipment
- Description
HXGN15-12 unit type AC metal-enclosed ring network switchgear
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- Commodity name: HXGN15-12 unit type AC metal-enclosed ring network switchgear
The HXGN15-12 type unit-type AC metal-enclosed ring-main switchgear (hereinafter referred to as the ring main unit) is a new-generation high-voltage electrical product that we have independently designed and developed by introducing advanced foreign technologies and in accordance with the requirements of domestic rural power grid and urban grid renovation projects.
Overview
The HXGN15-12 type unit-type AC metal-enclosed ring-main switchgear (hereinafter referred to as the ring main unit) is a new-generation high-voltage electrical product that we have independently designed and developed by introducing advanced foreign technologies and in accordance with the requirements for rural power grid and urban grid renovation in China. All its technical performance indicators comply with IEC 62271-200:2003 and GB 3906 standards.
The main switch, operating mechanism, and components of the ring-main unit are either original ABB parts or SFL-12/24 switchgear assembled domestically from imported components; alternatively, upon customer request, it can be equipped with original ABB HAD/US-type SF6 circuit breakers or VD4-S vacuum circuit breakers. The operating modes are manual and electric. The cabinet is fabricated by riveting after CNC machining, achieving an IP3X protection rating and incorporating reliable mechanical interlocks and anti-misoperation features. This product boasts such outstanding characteristics as compact size, light weight, aesthetically pleasing appearance, simple operation, long service life, high performance parameters, zero pollution, and minimal maintenance. The HXGN15-12 modular AC metal-enclosed ring-main switchgear is designed for 50 Hz, 12 kV power networks, serving to receive and distribute electrical energy. The main switch inside the cabinet is an SF6 switch.Model Meaning
Terms of Use
◆ Ambient temperature: upper limit +40°C, lower limit -25°C;
◆ Altitude: Maximum altitude of 2,000 m;
◆ Relative humidity: daily average not exceeding 95%; monthly average not exceeding 90%.
◆ Ambient conditions: The surrounding air shall be free from significant contamination by corrosive gases, flammable gases, water vapor, and the like.◆ No frequent, severe vibrations.
Main Technical Parameters
Project Unit Parameters Rated voltage kilovolt 12 Rated frequency Hertz 50 Main busbar rated current / Maximum rated current of fuse A Six hundred thirty thousand one hundred twenty-five Rated short-time withstand current of the main circuit and grounding circuit kA/s 20, 3 Rated peak withstand current of the main circuit and grounding circuit kA 50 Rated short-circuit making current for the main circuit and grounding circuit kA 50 Number of full-capacity interruptions by the load switch next 100 Fuse breaking current kA 31.5, 40 Rated Closed-Loop Breaking Current A 630 Rated Transfer Current A 1600 Mechanical life next 2000 1 min power-frequency withstand voltage (peak) relative to ground / isolation gap kilovolt 42, 48 Lightning impulse withstand voltage (peak), phase-to-phase and phase-to-ground / isolation gap kilovolt 75, 85 1-minute power-frequency withstand voltage for secondary circuits kilovolt 2 Protection Level - IP3X Structural Features
Cabinet Structure
◆ The ring main unit cabinet is fabricated by riveting 2-mm-thick aluminum-zinc coated steel sheets (or cold-rolled steel sheets with powder coating), and is equipped with two pressure-relief vents: one in the cable compartment and the other in the load switch/busbar compartment. This design maximizes the safety and reliability of both installation and operation.
◆ Individual compartment chambers
◇ Busbar Room:
The busbar compartment is located at the top of the cabinet and connects adjacent switchgear cabinets.
◇ The load switch is a standalone unit, internally filled with SF6 gas.
◇ Cable Room
Approximately 75% of the space is allocated for cable connections, fuses, earthing switches, and the installation of CTs and PTs.
◇ Institutional Small Rooms and Interlocks
The cubicle comprises an operating mechanism, interlocking devices, position indicators, auxiliary contacts, trip coils, live-indicator displays, and interlocks.
◇ Relay Box
The relay box is mounted on the top of the cabinet and is optional. The compartment is used to house special equipment such as instruments, relays, and motor units.
◇ Circuit Breaker Room
A circuit breaker (SF6 or vacuum) can be installed below the load switch.
◆ Pressure Release
◇ Release the pressure above
The above is used to relieve the gas pressure generated during internal arc faults in the busbar and load switch compartments.
◇ Pressure relief below
The following is used to relieve the gas pressure generated during an internal arc fault in the cable compartment.
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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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