Low Voltage Metal Clad Switchgear
1.Perfect five-prevention interlocking, with mechanical and electrical double locking to eliminate misoperation, ensuring safer operation.
2.Armored four-chamber separation with metal partitions for isolation, preventing fault spread and having strong arc resistance.
3.Middle-mounted trolley structure with good interchangeability, allowing quick replacement and realizing non-stop maintenance.
4.Excellent insulation performance and sufficient creepage distance, suitable for long-term reliable indoor operation.
5.High dynamic and thermal stability, strong resistance to short-circuit current, suitable for power supply of important loads.
6.Standardized structure with strong versatility, convenient installation and small floor space.
7.Compatible with intelligent modules, can be equipped with online temperature measurement, integrated protection and communication, meeting the needs of smart power stations.
8.Wide application scenarios, widely used in substations, factories, buildings, mines, data centers, etc.
Product Details of KYN28A-12
1. Product Introduction
KYN28A-12 is a 12kV indoor armored withdrawable metal-enclosed switchgear. It adopts a central trolley structure and four independent armored compartments, suitable for vacuum circuit breakers. It is used for power reception, distribution, control and protection in power systems, widely applied in medium-voltage power distribution scenarios such as substations, factories, buildings and mines. It is the mainstream 10kV switchgear assembly in China.
2. Core Technical Parameters(Customizable)
Rated Voltage: 12kV
Rated Current: 630A/1250A/1600A/2000A/3150A
Rated Short-circuit Breaking Current: 25kA/31.5kA/40kA
Short-time Withstand Current: 25kA/31.5kA/40kA/4s
Protection Degree: IP4X (cabinet), IP2X (compartment)
Mechanical Life: Trolley ≥ 5000 operations; Circuit breaker ≥ 20000 operations
Standards: GB 3906, IEC 62271-203
Cabinet Structure: Aluminum-zinc coated steel / cold-rolled steel, assembled type, central trolley
3. Main Features
Five-prevention Interlocking, Safe and Reliable
Complete mechanical and electrical interlocks to prevent misoperation, earthing switch closing under live condition, and entering live compartments. Directional pressure relief on the top limits arc spread.
Armored Compartment Structure, Controllable Faults
Four independent compartments: busbar chamber, circuit breaker chamber, cable chamber and control chamber, separated by metal partitions to ensure safe and stable operation.
Central Trolley Design, Efficient Operation & Maintenance
The trolley can be withdrawn and replaced quickly with clear test and working positions. Good interchangeability of the same type enables maintenance without power outage.
Compact Structure, Space-saving
Standardized cabinet, suitable for wall-mounted or back-to-back installation. Front maintenance design provides high space utilization.
Stable Performance, Strong Adaptability
Excellent dynamic and thermal stability, reliable insulation. Compatible with domestic and imported vacuum circuit breakers (VS1, VD4, etc.). Suitable for high altitude, humid and dusty environments.
Smart Compatible, Easy for System Integration
Equipped with integrated protection, temperature monitoring and online detection devices. Supports communication networking to meet the requirements of unattended and intelligent substations.
4. Application Scenarios
Power system: substations, power plants, switching stations
Industry: metallurgy, chemical, mining, manufacturing, papermaking and other high-reliability power distribution
Infrastructure: commercial complexes, hospitals, airports, rail transit, data centers
Industrial parks: industrial zones, municipal engineering, new energy stations and other 10kV power distribution systems
