XGN66-12(Z) Fixed enclosed switchgear
Category:
Keywords: Electrical Equipment
- Description
XGN66-12(Z) Fixed enclosed switchgear
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- Commodity name: XGN66-12(Z) Fixed enclosed switchgear
This product incorporates advanced foreign technology, features a compact footprint—only 50% of that of a conventional switchgear cabinet—and boasts high reliability and superior performance in its circuit breakers. Additionally, its “five-protection” interlocking mechanism is both reliable and straightforward.
Overview
The XGN66-12(Z) fixed-type enclosed switchgear (hereinafter referred to as the switchgear cabinet) is our company’s new-generation complete set of high-voltage electrical equipment, compliant with the national standard GB 3906 “AC Metal-Enclosed Switchgear for 35 kV and Below” and the Ministry of Electric Power standard DLT 404 “Technical Specifications for Ordering Indoor AC High-Voltage Switchgear,” as well as the international standard IEC 60298 “AC Metal-Enclosed Switchgear and Control Equipment for Voltages Above 1 kV and Below 52 kV.” This product incorporates advanced foreign technologies, features a compact footprint—only about 50% of that of conventional switchgear cabinets—and boasts high reliability and excellent performance in its circuit breakers. It also benefits from a reliable and simple “five-protection” interlocking mechanism. The switchgear cabinet is an indoor, complete assembly designed for 3.6 kV, 7.2 kV, and 12 kV three-phase AC systems at 50 Hz, with a single busbar configuration and sectionalized busbars, intended for receiving and distributing electrical energy. In addition, it provides functions such as circuit control, protection, and monitoring, making it suitable for use in various types of power plants, substations, industrial and mining enterprises, high-rise buildings, and other facilities. It can also be combined with ring-main units for application in switchgear stations.
Model and Meaning
Operating Environment Conditions
◆ Altitude not exceeding 1000 m;
◆ Ambient temperature: -25°C to +40°C, with an average temperature not exceeding +35°C over any 24-hour period;◆ The horizontal inclination shall not exceed 3°;
◆ Seismic intensity not exceeding 8;
◆ Areas free from severe vibration, impact, and explosion hazards.Structural Features
◆ The cabinet body is fabricated by welding high-quality angle steel;
◆ The circuit breaker compartment is located in the lower section of the cabinet, facilitating installation, commissioning, and maintenance. It is standardly equipped with a VS1 circuit breaker and features a pressure-relief channel to ensure personal safety;◆ An advanced and reliable rotary isolating switch is employed, enabling safe access to the circuit breaker compartment for maintenance while the main busbar remains energized;
◆ Enclosure protection rating: IP2X;
◆ Equipped with a reliable, fully functional mandatory mechanical interlocking device that conveniently and effectively meets the “five-protection” requirements;
◆ Features a reliable grounding system;
◆ The door is equipped with an observation window, allowing clear visibility of the operating status of the components inside the cabinet;
◆ The operating mechanism interlock adopts the JSXGN interlocking mechanism used in XGN2-12 switchgear, which is simple, reliable, convenient, and practical.
◆ Incoming and outgoing cables are routed below the front of the cabinet for convenient connection by users.Main Technical Parameters
Main Technical Parameters and Component Models of Switchgear Project Unit Parameters Rated voltage kilovolt 3.6, 7.2, 12 Rated Power-Frequency Withstand Voltage kilovolt To ground, phase-to-phase: 42; Break point: 48 Rated Lightning Impulse Withstand Voltage kilovolt To ground, phase-to-phase: 75; Break point: 85 Rated frequency Hertz 50 Rated current A 6,301,250 Rated short-circuit breaking current (RMS) kA 20, 25, 31.5 Rated Short-Circuit Making Current (Peak) kA 50, 63, 80 Rated dynamic stability current (peak) kA 50, 63, 80 Rated thermal stability current, 4 s (RMS) kA 20, 25, 31.5 Protection Level - IP2X External dimensions (width × depth × height) mm 900 × 1000 × 2300 Weight kilogram ≈ 600 Main Technical Parameters of the VS1-12 Vacuum Circuit Breaker Project Unit Parameters Rated voltage kilovolt 12 Rated current A 630, 1250 Rated short-circuit breaking current kA 20, 25, 31.5 Rated short-circuit making current kA 50, 63, 80 Rated short-time withstand current (RMS value for 4 s) kA 20, 25, 31.5 Rated Peak Withstand Current (Peak) kA 50, 63, 80 Mechanical life next 10000 Rated short-circuit breaking current breaking operations next 50 Rated Operating Sequence - Separate – 0.3 s – Combine Separate (CO) – 180 s – Combine Separate (CO) Contact opening distance mm 11±1 Contact travel mm 4±0.5 Phase center distance mm 210 Trip speed m/s 1.2±0.2 Closing speed m/s 0.6±0.2 Trip time millisecond ≤60 Closing time millisecond ≤75 Three-phase trip synchronism millisecond ≤2 Closing bounce millisecond ≤2 Circuit resistance microohm ≤45 Allowable cumulative wear thickness of the contact. mm 3 Note: Refer to the respective instruction manuals for the technical specifications of other electrical components. For switchgear configurations with a rated current exceeding 1600 A, arrangements must be made in consultation with our company.
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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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