ROCKWILL 12kV Indoor Vacuum Circuit Breaker (VSC Series) Technical Solution
Ⅰ. Core Functions & Performance
- Electrical Parameters
|
Parameter |
Value |
Notes |
|
Rated Voltage |
12kV |
- |
|
Rated Current |
630A, 800A, 1250A, 1600A |
Customizable |
|
Short-Circuit Breaking Capacity |
20kA, 25kA, 31.5kA |
Customizable |
|
Power-Frequency Withstand Voltage (1min) |
Dry: 48kV / Wet: 38kV |
DL/T403 Compliant |
|
Lightning Impulse Withstand Voltage |
75kV |
- |
|
Mechanical Life |
≥10,000 operations |
Spring mechanism, oil-free design |
|
Short-Time Withstand Current (4s) |
31.5kA |
- |
- Control Characteristics
- Operating Mechanism: Spring-operated (maintenance-free)
- Coil Voltage (Closing/Tripping): AC/DC 110V/220V (optional)
- Motor Operating Voltage: Customizable
- Auxiliary Contacts: 8 NO (Normally Open) + 8 NC (Normally Closed)
- Monitoring: Mechanical counter (operation records)
II. Applications & Compatibility
- Typical Applications
- Power Systems: Power plants, substation in/outlet protection
- Industrial: Petrochemical, metallurgical, main distribution cabinets for manufacturing
- Public Facilities: Airports, data centers, residential distribution networks
- Switchgear Compatibility
|
Cabinet Series |
Compatible Models |
|
Domestic Cabinets |
KYN28, KYN96, XGN series |
|
International Cabinets |
ABB ZS series |
|
Installation Type: Fixed (Lateral Type) |
- Note: Custom non-standard cabinets supported; installation drawings required.
III. Technical Advantages & Innovations
- Reliability Enhancement
- Vacuum Interrupter: Explosion-proof, maintenance-free
- APG Epoxy Casting: Monolithic insulation parts (humidity resistance ≤95%, pollution-proof)
- VSC Terminal Buffer: Shock/vibration resistant (-25℃~+40℃)
- Safety & Maintenance
- Interlocking: Mechanical lock to prevent load switching errors
- Visual Position Indicator: Mechanical ON/OFF status display
- Modular Design: Rapid replacement of coils/auxiliary switches
IV. Customization Services
|
Customization Item |
Options |
|
Insulation Medium |
Air-insulated / Gas-insulated (SF₆ alternative) |
|
Secondary Wiring Layout |
Front/Rear/Side wiring |
|
Special Current Ratings |
>1600A or >31.5kA designs |
|
High-altitude Adaptation |
≤2500m (derating required for higher elevations) |
V. Installation & Maintenance
- Environmental Requirements
- Altitude: ≤2500m (15% derating beyond)
- Temperature: -25℃ ~ +40℃
- Humidity: Daily average ≤90% (non-condensing)
- IP Rating: IP2X (upgrades to IP4X when installed)
- Documentation Support
- Certificates, installation drawings, wiring diagrams
- Type test reports compliant with GB/DL/IEC standards
VI. Typical Configurations (Examples)
|
Application Scenario |
Recommended Configuration |
Protection Target |
|
Substation Inlet Cabinet |
VSC-1250A/31.5kA + Motorized |
Main transformer short-circuit |
|
Industrial Distribution Center |
VSC-1600A/25kA + Rear Wiring |
Large motor control |
|
Commercial Complex |
VSC-800A/20kA + Front Wiring |
LV busbar segmentation |
VII. Support Services
Rockwill Electric Technical Guarantee:
- Technical Consultation: +86-577-27869966, support@rockwill.com
- Customization Response: ≤3 business days
- Warranty: 2 years (core components included)
- Resources: http://www.rockwill.cn
