VS1-24 Indoor High Voltage Vacuum Circuit Breaker with Common Insulated Cylinder (24kV)
The VS1-24 series indoor high-voltage vacuum circuit breaker is a reliable 24kV power distribution unit featuring a common insulated cylinder and composite insulation technology. Designed with a compact spring-charged operating mechanism and rod-push system, it offers stable performance and easily integrates with KYN28-24 (GZS1) switchgear to meet “Five Preventions” interlocking demands. With an M2-E2-C2 capability grade, this VCB is ideal for protecting and controlling electrical equipment in power plants, substations, and industrial facilities.
VS1-24 Indoor High Voltage Vacuum Circuit Breaker with Common Insulated Cylinder (24kV)
Product Overview
The VS1-24 series indoor high-voltage vacuum circuit breaker is a robust three-phase AC 50Hz indoor power distribution unit with a rated voltage of 24kV. Designed for the protection and control of electrical equipment in power plants, substations, and industrial mining enterprises, this VCB utilizes a common insulated cylinder and composite insulation technology. Its compact design and reliable operation make it an ideal fit for KYN28-24 (GZS1) and similar medium-voltage switchgear.
Compact Design & Reliable Operation
This VS1-24 variant is engineered for high performance in constrained spaces:
-
Advanced Mechanism: Features a spring-charged operating mechanism paired with a rod-push system, ensuring stable and repeatable switching cycles.
-
High Capability Grade: Achieves a performance rating of M2-E2-C2, fully conforming to national standards and the latest IEC provisions.
-
Safety Integration: Easily matches with various switchgear models to meet the stringent “Five Preventions” interlocking demands of modern power systems.
-
Versatile Configurations: The series includes VCB trucks, isolation trucks, and fuse trucks to meet diverse application needs.
Technical Specifications
| Item | Unit | Technical Data |
| Rated Voltage | kV | 24 |
| Rated Current | A | 630 / 1250 / 1600 / 2000 / 2500 / 3150 |
| Power Frequency Withstand Voltage (1min) | kV | 65 |
| Lightning Impulse Withstand Voltage (Peak) | kV | 125 |
| Rated Short-Circuit Breaking Current | kA | 20 / 25 / 31.5 |
| Rated Short-Circuit Duration | s | 4 |
| Rated Operating Sequence | – | O-0.3s-CO-180s-CO |
| Maximum D.C. Component | % | 50% |
Applying Ambient Conditions
To ensure optimal performance, the VS1-24 should be operated within the following environmental limits:
-
Ambient Temperature: Between -10°C and +40°C.
-
Relative Humidity: Daily average ≤ 95%, Monthly average ≤ 90%.
-
Altitude: Less than 1000m (excluding special custom requirements).
-
Vapor Pressure: Daily average ≤ 2.2kPa, Monthly average ≤ 1.8kPa.
-
Installation Site: Must be free from fire, explosion hazards, chemical corrosion, or violent vibration.
Send Us Your Inquiry
We are always ready to assist you! Contact our team for expert support and personalized solutions.