China HV Disconnect with Earthing Function Manufacturer, Supplier, Factory

For comprehensive protection during high-voltage system maintenance, reliable grounding is non-negotiable. The HV Disconnect with Earthing Function is engineered to deliver this essential safety, combining robust isolation with a secure grounding mechanism. This device acts as a primary safety interface, ensuring circuits are de-energized and grounded before any work begins. It is an integral part of modern switchgear assemblies, often functioning alongside or integrated with devices like the Indoor High Voltage Earthing Switch. Its design is particularly suited for indoor substations, where it serves as a critical Indoor HV Grounding Device. As a dedicated High Voltage Switchgear Earthing Switch, it provides a visible break and a verified earth connection, fulfilling the dual role of an HV Isolator Grounding Switch. This integration is vital for preventing accidental re-energization and protecting personnel from electrical hazards.

The core design philosophy of the <产品名字> centers on operational safety, mechanical endurance, and ease of maintenance. It is constructed with high-grade, corrosion-resistant materials to withstand the demanding electrical and environmental stresses of high-voltage applications. The switching mechanism is engineered for positive, unambiguous operation, providing clear visual and mechanical indication of both the disconnect and earthed states. This ensures that personnel can always confirm the system's status before proceeding. Furthermore, its compact and modular design allows for straightforward integration into various switchgear configurations, simplifying installation and future servicing. The <产品名字> undergoes rigorous type testing in accordance with international standards to validate its performance under short-circuit conditions, dielectric withstand, and mechanical operations.

Key Technical Specifications

• Rated Voltage: Up to 40.5 kV
• Rated Frequency: 50/60 Hz
• Rated Normal Current: 630A, 1250A, 2000A, 3150A
• Rated Short-Time Withstand Current: 25 kA to 50 kA (1s or 3s)
• Rated Peak Withstand Current: 63 kA to 125 kA
• Mechanical Endurance: ≥ 2000 operations (class M2)
• Earthing Switch Short-Time Current: Matches main circuit ratings
• Operating Mechanism: Manual (lever), Motor-operated, or Pneumatic
• Degree of Protection: Up to IP4X for indoor applications