- Introduction to KYN28-24 Metal-Clad Switchgear
- Applications of KYN28-24 Metal-Clad Switchgear
- Market Trends and Industry Background
- Technical Specifications of KYN28-24
- Operating Conditions
- Primary Technical Specifications
- Key Features and Benefits
- VS1-24 Vacuum Circuit Breaker Overview
- VS1-24 Key Technical Parameters
- Comparison with Other Switchgear Types
- Selection and Purchase Guidance
- Frequently Asked Questions (FAQ)
Introduction to KYN28-24 Metal-Clad Switchgear
In the realm of medium-voltage power distribution, metal-clad switchgear plays a vital role in enhancing network reliability, safety, and operational flexibility. The KYN28-24 Metal-Clad Switchgear is a state-of-the-art air-insulated switchgear solution engineered for primary distribution networks. Designed with modularity, durability, and high performance in mind, it serves critical infrastructure projects across industrial, utility, and renewable sectors.
Applications of KYN28-24 Metal-Clad Switchgear
The KYN28-24 switchgear is ideal for a wide range of demanding environments, including:
- Primary substations in power grids
- Large-scale industrial complexes and manufacturing plants
- Mining operations and petrochemical facilities
- Renewable energy installations (wind farms, solar stations)
- Infrastructure projects (airports, data centers, hospitals)
Its high short-circuit handling capability and robust mechanical endurance make it particularly suited for mission-critical systems that require absolute reliability.
Market Trends and Industry Background
The transition towards smarter grids, electrification of transportation, and increased focus on energy resilience have fueled the demand for advanced medium-voltage switchgear globally. According to an IEEE report, the global switchgear market is projected to grow steadily as industries modernize existing grids and integrate more renewable energy (source).
Metal-clad switchgear like the KYN28-24 remains indispensable due to its exceptional safety features, flexibility for future upgrades, and superior compartmentalization.
Technical Specifications of KYN28-24
Operating Conditions
| Condition | Specification |
|---|---|
| Ambient Temperature | +15°C to +40°C (avg ≤35°C in 24h) |
| Altitude | ≤1000m |
| Relative Humidity | Monthly avg ≤90%, vapor pressure ≤1.8kPa |
| Dust, Smoke, Gases | No corrosive, flammable, or conductive pollution |
| Vibration / Ground Motion | Negligible |
| Electromagnetic Interference | ≤1.6kV induced in secondary circuits |
Primary Technical Specifications
| Item | Unit | Data |
| Rated Voltage | kV | 24 |
| Rated Frequency | Hz | 50 / 60 |
| Lightning Impulse Withstand Voltage (phase, ground) | kV | 60 |
| Lightning Impulse Withstand Voltage (isolator) | kV | 79 |
| Power Frequency Withstand Voltage (phase, ground) | kV | 125 |
| Power Frequency Withstand Voltage (isolator) | kV | 145 |
| Auxiliary Circuit Withstand Voltage | V | 2000 |
| Rated Circuit Breaker Current | A | 630 / 1250 / 1600 / 2000 / 2500 / 3150 |
| Short-Circuit Breaking Current | kA | 20 / 31.5 |
| Short-Circuit Closing Current (Peak) | kA | 50 / 80 |
| Short-Time Withstand Current | kA | 20 / 31.5 |
| Peak Withstand Current | kA | 50 / 80 |
| Auxiliary Circuit Voltage | V | AC/DC 110 / 220 |
| Protection Degree | — | IP4X (IP2X with door open) |
| Dimensions (W×D×H) | mm | 800×1810×2380 / 1000×1810×2380 |
| Weight | kg | 840 ~ 1140 |
Key Features and Benefits
- Superior Compartmentalization: Fully metal-clad and isolated compartments improve personnel and system safety.
- Flexible Configurations: Modular design allows for easy system expansions and retrofits.
- High Fault Tolerance: Capable of handling up to 31.5kA short-circuit currents.
- Enhanced Durability: Designed for long mechanical life even under frequent switching operations.
- Ease of Maintenance: Logical layout with front access reduces maintenance time and enhances safety.
VS1-24 Vacuum Circuit Breaker Overview
A VS1-24 Vacuum Circuit Breaker is the core switching component used inside the KYN28-24 switchgear, offering exceptional breaking performance and mechanical endurance.
VS1-24 Key Technical Parameters
| Item | Unit | Data |
| Rated Voltage | kV | 24 |
| Lightning Impulse Withstand | kV | 60 |
| Power Frequency Withstand | kV | 125 |
| Rated Frequency | Hz | 50 / 60 |
| Rated Current | A | 630–3150 |
| Short-Circuit Breaking Current | kA | 20 / 31.5 |
| Closing Current (Peak) | kA | 50 / 80 |
| Short-Time Withstand Current | kA | 20 / 31.5 |
| Peak Withstand Current | kA | 50 / 80 |
| Capacitor Bank Breaking (single/back-to-back) | A | 630 / 400 |
| Breaking Operation Times | Times | 50 |
| Mechanical Life | Times | 20,000 |
| Operating Sequence | — | O-0.3s-CO-180s-CO |
Comparison with Other Switchgear Types
| Feature | KYN28-24 Metal-Clad | GIS (Gas-Insulated Switchgear) | Air-Insulated RMU |
| Insulation Medium | Air | SF₆ Gas | Air |
| Application Level | Primary | Primary | Secondary |
| Footprint | Larger | Very Compact | Compact |
| Maintenance | Moderate | Very Low | Low |
| Environmental Sensitivity | Moderate | Low | High |
Selection and Purchase Guidance
When selecting KYN28-24 switchgear, key considerations include:
- System Voltage and Short-Circuit Level Requirements
- Space Availability and Accessibility
- Integration Needs with Protection Relays and Automation
- Compliance with IEC, GB, and Local Standards
Engaging with expert engineers from PINEELE ensures that the switchgear selection perfectly aligns with project-specific technical and operational needs.
Frequently Asked Questions (FAQ)
KYN28-24 is widely adopted in utilities, heavy industries, transportation infrastructure, and renewable energy projects requiring medium-voltage primary distribution.
Yes. Customized designs for harsh environments, seismic zones, or specific temperature/humidity conditions are available based on project requirements.
With proper maintenance, the mechanical lifespan exceeds 20 years, supported by the 20,000 mechanical operation cycles of its VS1-24 vacuum circuit breaker.
PINEELE’s KYN28-24 Metal-Clad Switchgear stands as a benchmark for performance, safety, and reliability in medium-voltage power distribution systems worldwide.