KYN28-12 Digital SwitchgearMedium-Voltage Switchboard
An armored metal-enclosed digital switchgear for 3-phase AC 50Hz, 3.6-12kV single-busbar systems. Manages energy reception and distribution with advanced control, protection, monitoring.
-
Engineered for maximum safety and reliability, fully internal arc-resistant, high seismic resistance (AG5, intensity 9), five-fold mechanical interlocking, optimized thermal management. Compliant with state grid and China southern grid standards, passed all national type tests.
Core Advantages & Features
-
Metal-Clad Safety DesignThe metal-clad enclosure effectively prevents fault propagation, ensuring operational safety and reliability.
01 -
High–Low Voltage IsolationIndependent compartments provide complete isolation between high- and low-voltage sections for enhanced safety.
02 -
Dual-Side MaintenanceCompact design with dual-side access allows convenient maintenance and space-efficient installation.
03 -
Modular Circuit Breaker StructureModularized breaker units simplify structure, improve reliability, and extend service life.
04 -
Five-Protection Interlocking SystemComprehensive interlock design prevents misoperation and enables safe closed-door operation.
05 -
Internal Arcing Fault ResistanceFully arc-resistant design withstands internal faults up to 40kA/1s, ensuring equipment and personnel safety.
06 -
Certified ComplianceManufactured in accordance with both Chinese national and international standards, having passed complete type tests.
07 -
Flexible Switch OptionsCompatible with various main switches, including vacuum circuit breakers, vacuum contactors, and load switch trucks.
08 -
Motorized Operation CapabilityEquipped with motorized modules for remote operation of circuit breakers and grounding switches.
09 -
Integrated Intelligent MonitoringSupports real-time monitoring of mechanical performance, temperature, partial discharge; automatic data collection/analysis to optimize power management and lifecycle performance.
10
Technical Parameters
| Basic Parameters | |
|---|---|
| Insulation voltage | 12 kV |
| Rated power frequency withstand voltage | 42 kV/1min |
| Rated lightning impulse withstand voltage | 75 kV |
| Rated frequency | 50 Hz |
Rated short-time withstand current | 50 kA/4s |
| Rated peak withstand current | 125 kA |
| Busbar rated current | 5000 A |
| Internal arcing fault withstand current | 40 kA/1s |
| IP rating | IP41 |
| IK rating | IK10 |
| Dimensions: Width × Depth × Height (excluding front and rear door dimensions) | 650（800/1000/1200）mm × 1450（1500/1750/1800）mm × 2360 mm |
| Weight | 800~1800 kg |
Product Documents
-
Product Brochure
-
KYN28-12 Digital Switchgear
2025-11-10
Download PDF
The company consistently maintains robust innovative vitality, standing at the forefront of the industry and driving its advancement. Through cutting-edge technologies and products, it achieves goals of energy conservation, environmental protection, quality enhancement, and consumption reduction, continuously contributing to the development of a resource-efficient and environmentally friendly society.
