Product Overview
The 11kV metal-enclosed switchgear is an indoor medium and high-voltage complete power distribution equipment, suitable for three-phase AC 50Hz, rated working voltage 11kV single busbar and single busbar sectionalized systems. It is widely used in factories, mines, substations, new energy power stations and other places, used for the reception, distribution, control and protection of electric energy, adapting to working conditions such as transformer protection and line control, and is the core equipment of the 11kV power distribution system.
The product adopts a full metal armored enclosed structure with high-quality core components, featuring high breaking capacity, reliable insulation and convenient maintenance. It complies with standards such as GB/T 3906, GB/T 11022, IEC 62271-200 and DL/T 404, and has passed CCC, ISO and type test certifications, meeting the strict requirements of industrial power distribution.
Operating Environment
1. Ambient temperature: -5℃～+40℃, 24h average ≤+35℃; transportation and storage: -25℃～+55℃, up to +70℃ for a short time.
2. Indoor installation, altitude ≤2000m (insulation can be customized and optimized for high altitude).
3. Relative humidity: ≤50% at +40℃; up to 90% at +25℃, anti-condensation device is required if necessary.
4. Pollution level: Level 3, Level 4 anti-corrosion can be customized, and the cabinet can be provided with anti-corrosion coating.
5. Installation inclination: ≤5° with the vertical plane.
6. Installation site: No fire, explosion, severe vibration and corrosive medium, away from strong electromagnetic interference, seismic intensity ≤8 degrees, passing salt spray and damp heat tests.
Technical Parameters
Item | Unit | Parameter |
Rated working voltage | kV | 11 |
Rated insulation voltage | kV | 20 |
Rated frequency | Hz | 50 (adaptable to 60Hz) |
Rated current | A | 630/1250/1600/2000 |
Rated short-circuit breaking current | kA | 25/31.5/40 |
Rated short-time withstand current (4s) | kA | 25/31.5/40 |
Rated peak withstand current | kA | 63/80/100 |
1min power-frequency withstand voltage | kV | Phase-to-phase/earth 42; breaking port 48 |
Lightning impulse withstand voltage | kV | Phase-to-phase/earth 85; breaking port 95 |
Protection class | — | Outer casing IP4X, compartment interior IP2X (IP54 and above can be customized) |
Overall dimensions (W×D×H) | mm | 800/1000/1250×1500/1700×2300/2500 |
Executive standard | — | GB/T 3906, GB/T 11022, IEC 62271-200, DL/T 404 |
Product Features
1. Armored Enclosed Structure, Reliable Insulation: Full metal armored design, optimized 11kV insulation structure, the middle-mounted circuit breaker trolley can be quickly maintained, isolating high-voltage electric field, preventing arc leakage, and ensuring stable power supply.
2. Complete Five-Prevention Interlocking, Eliminating Misoperation: Following five-prevention specifications, forced mechanical interlocking, with five anti-misoperation functions, ensuring personal and equipment safety and reliable operation.
3. Independent Compartment Design, Controllable Fault: The cabinet is divided into independent compartments with special pressure relief channels to suppress arc spread, and each compartment is reliably grounded for easy maintenance.
4. Strong Interchangeability, Convenient Maintenance: Trolleys of the same specification are universal, supporting door-closed operation and front maintenance, and compatible with wall-mounted and back-to-back installation, simplifying construction and maintenance.
5. Excellent Dynamic and Thermal Stability, Adapting to 11kV Working Conditions: Optimized busbar layout and cabinet strength, supported by high-quality components, low temperature rise, strong short-circuit resistance, adapting to 11kV high-current working conditions.
6. Anti-Corrosion and Durable, Long Service Life: High-quality plates are precision processed and spray-painted, corrosion-resistant and anti-aging, anti-corrosion coating can be customized, adapting to various scenarios.
Our Advantages
1. Quick quotation, providing professional primary/secondary design and technical consulting services, meeting the needs of 11kV scenarios.
2. Standardized production, short delivery cycle, supporting urgent orders, customizable specifications and protection schemes.
3. Full-process technical support: installation and commissioning, operation and maintenance training, after-sales maintenance, providing special operation and maintenance guidance for equipment.
4. Complete certifications, high-quality core components, long warranty period, controllable quality, meeting strict acceptance requirements.
5. Strict quality control, full-process control of production and testing, focusing on key links such as insulation and dynamic and thermal stability.
Ordering Guide
The following information shall be provided when placing an order:
1. Primary and secondary circuit drawings and control requirements, clarifying 11kV scenario needs and protection and monitoring configuration.
2. Cabinet and power distribution room layout drawings to facilitate the optimization of installation schemes.
3. Incoming and outgoing line, busbar connection methods and installation details, indicating whether back-to-back installation is required.
4. Core component models and parameters, clarifying component brand preferences.
5. Specify special environment and functional requirements, and negotiate customized insulation and protection schemes.
