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GRANSO:Your Professional Operating Mechanism Of Air Insulated Switchgear Manufacturer!
Since its founding in 2010, Granso's first factory has grown into one of China's largest metal component manufacturers. Granso specializes in producing components for switchgear ranging from 7.2kV to 40.5kV, such as interlocks, circuit breakers, load switches, earthing switches, vacuum circuit breakers, and insulation. Through partnerships with renowned brands such as CHNT, DELIXI, and HUAWEI, Granso's annual output value has reached US$60 million.
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Why Choose Us
Our Factory
Owning three factories with 23000+ square meters together, Granso now has over 200+ staff, 25+ technicians. The self-production rate of parts in our company is as high as over 90%.
Quality Control
We rigorously control every process, ensuring our products comply with relevant standards such as GB7251.1, GBT/23359, and JB/T9661.
One-Stop Service
In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation.
During the sales period, we ensure timely delivery and provide installation guidance.
For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.
Product Parameters

Advantages of Operating Mechanism Of Air Insulated Switchgear
Ease of Installation and Maintenance:
The modular design of AIS facilitates quicker on-site assembly and installation. Components are easily accessible, allowing for straightforward inspection, testing, and repair without the need for specialized equipment or hazardous gas handling.
Flexibility and Scalability:
AIS systems are inherently flexible, making it simpler to expand or modify existing installations as demand grows.
Environmental Benefits:
By using air as the primary insulating medium, AIS eliminates the need for SF6 gas, reducing the carbon footprint and providing a more environmentally friendly solution.
Simple Operation:
The open design of AIS allows for visual inspection and verification of operations, making it simpler and safer for personnel.
Safety:
The absence of hazardous gases and the ability to easily verify components contribute to a safer operating environment and prevent accidental startups.
Versatility:
AIS is a reliable and versatile solution suitable for a wide range of applications, particularly in medium-voltage distribution systems for substations and industrial facilities.

Springs (Most Common): Pre-charged (stored energy) for fast operation.
Solenoids: Electromagnetic coils for direct tripping/closing.
Pneumatic/Hydraulic: Pressurized gas/fluid (common in HV systems).
Manual Handles: For small LV breakers or backup.
Trip Unit Interface: Receives signals from protective relays (e.g., overcurrent, differential) or manual controls.
Linkage System: Transfers energy to moving contacts via rods, levers, or gears.
Latching/Unlatching Assembly: Holds contacts closed until a trip signal releases stored energy.
Detailed explanation of the operation method of the operating mechanism
Before using the operating mechanism, a comprehensive inspection must be carried out. First, confirm whether the power supply or power source (such as hydraulic oil, air pressure) of the equipment is supplied normally to avoid operation failure due to insufficient power. Secondly, check whether the mechanical parts of the operating mechanism are flexible and whether there is any jamming or wear. If any abnormality is found, contact the technician in time for maintenance and do not force the operation.
In addition, the operator should be familiar with the control panel and operation buttons of the equipment to ensure that the function keys such as start, stop, and emergency brake can be correctly identified. Some high-end equipment may be equipped with a digital control system, and professional training is required before operation to avoid equipment damage or safety accidents caused by misoperation.
During the operation, the requirements of the equipment manual should be strictly followed. For example, hydraulic operating mechanisms usually need to adjust the pressure slowly to avoid instantaneous high-pressure shocks; pneumatic operating mechanisms need to pay attention to the stability of the air source to prevent air pressure fluctuations from affecting the accuracy of the movement. Electric operating mechanisms need to pay attention to the operating status of the motor to avoid overload operation.
Environmental factors should also be paid attention to during operation. For example, in a high temperature or humid environment, the heat dissipation and insulation performance of the equipment may be affected. The operator should adjust the operation rhythm appropriately to avoid overheating or short circuit of the equipment. At the same time, you should stay focused during the operation to avoid distraction and misoperation.
After the operation is completed, dust, oil and other debris on the surface and inside of the equipment should be cleaned in time to prevent accumulation from affecting the next use. Lubricate moving parts regularly and check whether fasteners are loose to ensure long-term stable operation of the equipment. For frequently used equipment, it is recommended to establish a maintenance log to record each operation and maintenance situation to facilitate tracking of equipment status.
Packing and Shipping
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Packing |
Carton/ Wooden Case / Pallet |
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Shipping |
Express, Air Freight, Sea Freight, LCL/FCL |
FAQ
We're professional operating mechanism of air insulated switchgear manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to buy operating mechanism of air insulated switchgear at competitive price from our factory.
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