Introduction to PINEELE KYN28-24 Center Metal-Clad Switchgear
The PINEELE KYN28-24 Metal-Clad Switchgear is a high-performance, withdrawable type AC enclosed switchgear designed for medium-voltage indoor applications. This center metal-clad switchgear is engineered for three-phase AC 50/60Hz systems with a rated voltage of 24kV, making it a versatile choice for a wide range of power distribution environments, including power plants, substations, industrial facilities, mines, and high-rise buildings.
This Metal-Clad Switchgear is built in accordance with IEC 62271-200 standards and features an advanced modular structure for enhanced safety, operational convenience, and easy maintenance. The switchgear integrates high-quality VS1 series vacuum circuit breakers, a fully partitioned structure, and multiple interlock protections to prevent incorrect operations under live conditions.
Whether for control, monitoring, or protection, the PINEELE KYN28-24 Metal-Clad Switchgear offers a dependable and intelligent medium-voltage solution.
Core Features of PINEELE KYN28-24 Metal-Clad Switchgear
Modular Metal-Enclosed Construction
- Built from aluminum-zinc coated steel sheets, processed by CNC for accuracy.
- Fully assembled with bolts or rivets to allow easy customization and expansion.
Withdrawable Design for Flexibility
- Designed with a handcart-type circuit breaker unit, enabling easy insertion/removal.
- Various types of handcarts can be installed: circuit breakers, PTs, surge arresters, fuses.
Compartmentalized Safety Design
- Features independent functional compartments: busbar room, circuit breaker room, cable room, and relay/instrument room.
- Ensures arc containment, clearances, and ease of troubleshooting.
Advanced Misoperation Prevention
- Prevents racking a live breaker, live earthing, opening doors under live voltage, and more.
- Full mechanical interlocking and safe viewing windows.
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 |
VS1-24 Vacuum Circuit Breaker Specifications
| 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 |
VS1-24 Operating Mechanism Parameters
| Item | Unit | Data |
|---|---|---|
| Coil Voltage (Close/Trip) | V | AC220, AC110, DC220, DC110 |
| Coil Current | A | 1.1A (220V), 3.1A (110V) |
| Energy Storage Motor Power | W | 80 / 100 |
| Energy Storage Time | s | ≤10 |
Structural Composition of the KYN28-24 Switchgear
The PINEELE KYN28-24 Metal-Clad Switchgear consists of:
- A. Busbar Room: Located at the top, connecting to incoming/outgoing lines.
- B. Circuit Breaker Compartment: Contains the VS1 vacuum breaker handcart.
- C. Cable Room: Lower section for cable termination, grounding, and current transformers.
- D. Relay/Instrument Compartment: Front-facing panel for relays, meters, and control components.
The handcart (withdrawable component) allows replacement or maintenance without disconnecting the entire cabinet, enhancing operational uptime.
Advantages of PINEELE Metal-Clad Switchgear
- Withdrawable breaker system for easy maintenance
- Multi-compartment design ensures operational and personnel safety
- High dielectric strength and arc-containment construction
- Compact footprint ideal for indoor substations or equipment rooms
- Fully compliant with IEC62271-200 standards
- Tested to perform in high humidity and varying temperatures
- Long mechanical life (20,000+ operations)
Frequently Asked Questions (FAQs)
1. What makes the PINEELE KYN28-24 Metal-Clad Switchgear better than traditional fixed-type switchgear?
Unlike fixed types, the withdrawable handcart design allows easy isolation and maintenance of components without shutting down the entire system. The Metal-Clad Switchgear provides arc protection, operator safety, and quick replacement of internal units.
2. Can this Metal-Clad Switchgear be used in smart substations?
Yes. The PINEELE KYN28-24 is designed with smart grid integration in mind. It supports the addition of remote control terminals, digital relays, and SCADA systems, enabling real-time monitoring, protection, and communication.
3. What environments is the KYN28-24 Metal-Clad Switchgear best suited for?
It’s ideal for indoor environments such as urban substations, power generation stations, mining sites, and commercial buildings, where high voltage distribution with advanced safety and monitoring is required.
Application Scenarios
The PINEELE KYN28-24 Metal-Clad Switchgear is widely used in:
- ⚡ Power Generation and Transmission Systems
- 🏭 Industrial Manufacturing Facilities
- 🏢 Commercial Skyscrapers and Building Complexes
- ⛏️ Mining and Oil Extraction Sites
- 🏗️ Infrastructure Projects (metro stations, tunnels)
- 📡 Communication Base Stations
- 🏬 Shopping Malls and Data Centers
- 🛑 Emergency Backup Power and Critical Power Rooms