Dependable Indoor Earthing Switch Manufacturer for Your Electrical Needs

The Usune JN15 series Indoor Earthing Switch is a professional safety protection device designed specifically for medium-voltage power distribution scenarios. Manufactured by a professional high-voltage circuit breaker factory in China, it strictly adheres to domestic and international electrical industry standards, ensuring stable and reliable overall performance.

This product is suitable for 12kV, 24kV, and 36kV AC 50/60Hz indoor power distribution systems. It is perfectly compatible with medium-voltage switchgear such as KYN28, KYN61, and ring main units, and is a core component of metal-enclosed switchgear. The device is primarily used for circuit grounding and safety isolation during power system operation and maintenance, completely releasing residual voltage, eliminating the risk of electric shock and equipment damage, and comprehensively protecting the personal safety of maintenance personnel and the safe operation of power equipment.

The Indoor Earthing Switch has extremely high adaptability, widely covering mainstream indoor medium-voltage power distribution scenarios such as urban and rural power grid substations, industrial and mining substations, and power distribution systems for new energy power plants. It is currently the most widely used safety grounding protection device in the medium-voltage power field.

Core Product Advantages

1. Optimized Structure, Stable Operation

Adopting a simple and rational integrated mechanical structure, the opening and closing actions are flexible, requiring minimal operating force, and the operation is smooth and without jamming, effectively reducing operational difficulty and the probability of human error.

2. High Strength, Strong Stability

The entire unit boasts high mechanical strength, excellent dynamic and thermal stability, and can withstand instantaneous short-circuit impact currents under complex operating conditions. Its long-term structural stability meets the continuous operation requirements of power systems.

3. Compact Size, Wide Adaptability

The Indoor Earthing Switch features a compact and rationally laid-out structure, easily adapting to various mainstream indoor high-voltage switchgear such as KYN28 and KYN61. Installation is convenient, and its versatility is strong, significantly improving equipment assembly flexibility.

4. Reliable Interlocking, Preventing Misoperation

Equipped with a professional mechanical interlocking device, it effectively avoids misoperation during operation and maintenance, preventing safety accidents caused by violations and improving the safety level of equipment operation and maintenance.

5. Excellent Performance and Long Service Life

Utilizing high-quality conductive and insulating materials, it boasts outstanding conductivity and insulation properties, is corrosion-resistant and anti-aging, and can operate stably for extended periods under various indoor conditions, resulting in a longer service life.

Real-world Application Case

A 12kV urban power grid substation renovation project in Jiangsu Province adopted the Usune JN15-12 Indoor Earthing Switch paired with KYN28 switchgear throughout the line, responsible for the safety grounding isolation work of daily operation and maintenance and periodic inspection of substation equipment. The equipment has been operating stably for three years since its commissioning. After each power outage, residual voltage is completely released, achieving zero operational errors and zero safety hazards, effectively improving the safety and efficiency of substation operation and maintenance.

FAQ

Q1: Which voltage levels and switchgear are compatible with the Usune JN15 Indoor Earthing Switch?

A1: This product series covers 12kV, 24kV, and 36kV voltage levels, adaptable to 50/60Hz AC medium-voltage power distribution systems, and perfectly compatible with mainstream indoor metal-enclosed switchgear such as KYN28, KYN61, and various ring main units. It boasts strong versatility and can meet the matching needs of most indoor medium-voltage switchgear.

Q2: What is the core function of an indoor high-voltage grounding switch in a power system?

A2: The core function of the product is safe grounding and isolation protection. During the maintenance and commissioning of high-voltage equipment, it can reliably ground the circuit, quickly and thoroughly release residual voltage from equipment and lines, isolate energized parts of the system, eliminate safety hazards such as electric shock and equipment damage, and comprehensively protect the safety of maintenance personnel and power equipment.

Q3: What anti-misoperation and safety protection designs does this product have?

A3: The Usune JN15 series grounding switch is equipped with a dedicated mechanical interlocking device, forming a complete safety interlocking mechanism with the matching switchgear. This effectively prevents unauthorized misoperations such as closing the switch while it is energized or energizing the grounded circuit, thus avoiding safety accidents. Meanwhile, the product has excellent insulation properties and structural stability, which can ensure the long-term safe and reliable operation of the equipment.