GN30 Indoor High-Voltage Disconnector
The GN30 indoor high-voltage disconnect switch is a high-performance switching device engineered for 10kV power systems, with a maximum operating voltage of 12kV. It features a three-phase linked electric operating mechanism that supports both remote and local flexible control. Equipped with mechanical and electrical interlocks between the main disconnect and earthing switches, it ensures absolute operational safety. The high-voltage self-cleaning silver-plated contact design effectively minimizes contact resistance, while its ≥3000 mechanical life cycles and 30-year design lifespan deliver exceptional reliability. Ideal for various indoor distribution equipment, this switch is the optimal choice for ensuring safe and stable grid operations.
Product Details
Product Overview:
The GN30 indoor high-voltage disconnect switch is an indoor high-voltage switching device designed for AC 50 Hz systems, with a rated voltage of 10 kV (maximum operating voltage: 12 kV). This product is primarily used in power systems to open or close circuits under no-load conditions, providing a clearly visible safety disconnect point for electrical equipment maintenance. Designed for complex indoor environments, it features multi-layer protection against cold, heat, dust, moisture, rain, and foreign objects, ensuring stable operation even under harsh conditions.
Key Features:
• Electric Intelligent Operation: Features a three-phase linked electric operating mechanism supporting remote and local control, with AC control power. 220V, highly automated.
• Dual safety interlock: Reliable mechanical and electrical interlocks between the main isolating switch and the earthing switch prevent misoperation at the source.
• High-Performance Contacts: Features high-voltage self-cleaning silver-plated contacts with a silver-to-silver contact interface, delivering excellent conductivity, wear resistance, and low contact resistance.
• Extended service life: Mechanical life ≥ 3000 cycles (no maintenance or adjustment required), designed for up to 30 years, significantly reducing O&M costs.
• Easy Installation: Supports vertical, inverted, horizontal, and angled mounting to adapt to various cabinet structures.
• Enhanced Auxiliary Contacts: The main disconnect switch provides 8 normally open and 8 normally closed auxiliary contacts, while the grounding switch provides 8, meeting complex secondary circuit control requirements.
Structural Features:
The product features a light gray finish and a compact design. The operating mechanism offers an extremely high protection rating, resisting extreme cold, heat, dust, moisture, rain, and foreign object intrusion. Internal drive components are precision-machined to ensure precise three-phase synchronization. Insulators provide extended creepage distances and superior pollution flashover resistance, meeting operational requirements for high-altitude (≤2000m) and high-seismic-intensity (8) zones.
Applications:
• Urban and rural power grid 10kV distribution substations
• High-voltage distribution rooms and switch stations in industrial and mining enterprises
• New Energy Wind and Photovoltaic Power Grid-Connected System
• Rail Transit Traction Power Supply System
• Large Commercial Complexes and High-Rise Building Power Distribution Centers
