The KYN-28A-12 switchboard is a cutting-edge metal-clad 12kV withdrawable high voltage switchboard engineered for reliable power distribution and control in demanding industrial and utility environments. Constructed from premium aluminum-zinc steel plate and equipped with industry-standard VS1 vacuum circuit breakers, this robust switchgear delivers exceptional performance with rated currents up to 3150A and short-circuit withstand capability of 40kA/4s. Its innovative withdrawable design simplifies maintenance procedures while ensuring complete operator safety through compartmentalized isolation. Fully compliant with international high-voltage standards and rigorously type-tested, the KYN-28A-12 withdrawable HV 12 KV switchboard has become the preferred choice for power generation facilities, substations, and large industrial enterprises where uninterrupted power supply and operational safety are paramount.
Safety is the cornerstone of the KYN-28A-12 switchgear design. Its mechanical five-prevention interlock system enforces a strict "opening-isolation-grounding" operation sequence, eliminating the risk of dangerous misoperations. With a proven zero misoperation rate, this system provides unparalleled protection for both personnel and equipment in high-voltage environments.
The metal-clad withdrawable switchgear features a fully compartmentalized design that separates the circuit breaker, busbar, and cable rooms into independent, isolated compartments. This construction prevents cross-contamination and electrical interference, significantly enhancing equipment longevity and reducing the risk of cascading failures. The aluminum-zinc steel plate construction offers excellent corrosion resistance and structural durability.
Equipped with a high-performance VS1 vacuum circuit breaker switchgear, the KYN-28A-12 delivers exceptional switching and fault interruption capabilities. The vacuum interrupter ensures rapid arc quenching, minimizing component damage during electrical faults and reducing maintenance requirements. This results in lower operational costs and increased system availability.
Unlike standard switchgear, the 12kV power distribution switchgear is optimized to perform reliably in diverse environmental conditions. It operates flawlessly in high-altitude regions up to 3000m and withstands extreme temperature fluctuations, making it ideal for geographically diverse projects across the globe.
The KYN-28A-12 supports a wide range of functional modules including potential transformers (PT), current transformers (CT), and surge arresters. This modular approach allows for complete customization to meet specific project requirements, from basic power distribution to complex control and protection systems. Multiple outgoing circuits can be easily configured to accommodate growing power demands.
Parameter | Specification |
Rated Voltage | 3.6kV - 12kV |
Rated Current | 630A, 1250A, 2000A, 2500A, 3150A |
Short-Circuit Withstand Current | 20kA/4s, 25kA/4s, 31.5kA/4s, 40kA/4s |
Short-Circuit Making Current | 50kA, 63kA, 80kA, 100kA |
Circuit Breaker Type | VS1 Vacuum Circuit Breaker |
Enclosure Material | Aluminum-Zinc Steel Plate |
Protection Degree | IP4X (enclosure), IP2X (inter-compartment) |
Operating Temperature | -15°C to +40°C |
Altitude Limit | ≤3000m |
Compliance Standards | IEC 62271-200, GB 3906 |
The KYN-28A-12 withdrawable high voltage switchboard finds extensive application in:
Power generation facilities including thermal power plants, solar farms, and wind energy stations
Substations up to 220kV for voltage transformation and distribution
Large industrial enterprises in manufacturing, mining, and petrochemical sectors
Critical infrastructure such as railways, airports, and water treatment plants
Commercial buildings and data centers requiring reliable high-voltage power distribution
We offer comprehensive customization services to tailor the KYN-28A-12 switchboard to your specific needs:
Custom current and short-circuit ratings
Integration of advanced protection relays and monitoring systems
Specialized modules for metering, communication, and remote control
Custom paint finishes and color schemes
Special environmental adaptations for extreme conditions
Integration with existing power management systems
With proper maintenance, the KYN-28A-12 switchboard has an expected service life of 30 years or more. The VS1 vacuum circuit breaker typically requires no major maintenance for over 10,000 operations.
Yes, the modular design allows for easy expansion. Additional feeder cabinets can be added to the existing switchboard lineup to accommodate increased power demands without disrupting ongoing operations.
The KYN-28A-12 is designed for low maintenance. Routine procedures include visual inspections for dust accumulation, checking for loose connections, and verifying interlock functionality. The withdrawable design allows for component replacement without system shutdown.
Absolutely. The KYN-28A-12 is specifically engineered for high-altitude operation up to 3000m above sea level, with enhanced insulation and structural design to compensate for reduced air pressure.
Contact our technical sales team today for a customized quotation tailored to your specific project requirements. Our experienced engineers will work closely with you to design the optimal 12kV withdrawable high voltage switchboard solution for your facility. We offer competitive pricing, fast delivery times, and comprehensive after-sales support to ensure your complete satisfaction.
