China Compact High Voltage Earthing Switch Manufacturer, Supplier, Factory

When it comes to ensuring the safety and reliability of medium and high voltage electrical installations, a robust grounding solution is non-negotiable. The need for a dependable Indoor High Voltage Earthing Switch is paramount in applications ranging from industrial power distribution to critical infrastructure. Our compact, high-performance device is engineered to provide a secure, visible earth connection, effectively isolating sections of equipment for safe maintenance. It serves as a critical Indoor HV Grounding Device, seamlessly integrating into various switchgear assemblies. Designed specifically for use as a High Voltage Switchgear Earthing Switch, it meets stringent operational and safety standards. Furthermore, its functionality and form factor make it an ideal HV Isolator Grounding Switch, offering both isolation and a guaranteed grounding point in one compact unit.
The <产品名字> exemplifies engineering excellence for space-constrained environments without compromising on performance or safety. Its compact design allows for efficient use of panel space, making it a preferred choice for modern, modular switchgear and compact substations. The switch is built for durability and long service life, featuring high-conductivity contacts and a robust mechanical operating mechanism that ensures reliable closing and opening operations, even after extended periods of inactivity. It is designed for easy installation and integration, reducing overall project time and complexity. The primary application is to create a safe working environment by providing a reliable, visible earth connection to de-energized parts of high-voltage circuits, protecting personnel during inspection, repair, or commissioning activities. Its design prioritizes both operational security and maintenance safety.

Key Product Features

  • Compact & Space-Saving Design: Optimized footprint for integration into modern, space-efficient switchgear panels.
  • High Short-Time Withstand Current: Capable of handling significant fault currents for the designated duration, ensuring system protection.
  • Visible Isolation Gap: Provides a clear, reliable break for enhanced safety verification.
  • Robust Mechanical Life: Engineered for thousands of reliable operating cycles with minimal maintenance.
  • Manual or Motorized Operation: Available with manual operating mechanism or motor drive for remote/local control.
  • Excellent Contact System: Utilizes silver-plated or high-conductivity material for low contact resistance and stable performance.
  • Comprehensive Safety Interlocks: Can be equipped with mechanical and/or electrical interlocks to prevent unsafe operation.
  • Adaptable Mounting: Designed for flexible horizontal or vertical mounting as per switchgear layout.

Detailed Technical Specifications

Parameter Specification
Rated Voltage Up to 40.5 kV
Rated Frequency 50 / 60 Hz
Rated Normal Current 630 A, 1250 A, 2000 A, 2500 A, 3150 A
Rated Short-Time Withstand Current (3s) 25 kA, 31.5 kA, 40 kA, 50 kA
Rated Peak Withstand Current 63 kA, 80 kA, 100 kA, 130 kA
Rated Short-Circuit Making Current 63 kA, 80 kA, 100 kA, 130 kA
Dielectric Withstand (Power Frequency, 1 min) As per IEC 62271-102 / relevant standards
Mechanical Endurance ≥ 2000 operations
Operating Mechanism Manual (lever), Motorized (optional)
Ambient Temperature Range -25°C to +40°C (operational)
Protection Degree (Enclosure) IP2X (standard), higher ratings available
Standards Compliance IEC 62271-102, ANSI/IEEE C37.34, or equivalent

Typical Applications

  • Metal-Enclosed and Metal-Clad Switchgear
  • Compact Secondary Distribution Substations
  • Wind Turbine and Solar PV Power Plants
  • Industrial Plant Main and Distribution Switchboards
  • Railway Traction Power Supply Systems
  • Data Center Critical Power Infrastructure

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