Operating Mechanism

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Our R&D: Our R&D team consists of senior technical experts with decades of experience in the design and manufacture of high and low voltage electrical equipment. Their expertise, combined with our advanced facilities, enables us to always lead industry trends and continuously optimize our product portfolio.

Quality control: We are able to accurately and efficiently produce a wide range of high-quality electrical products that comply with GB 1984-2024 and GB/T11022-2020 standards to ensure the highest quality.

Customization requirements: We know that our customers' needs are different, so each product can be designed according to the specific needs of the customer.

Our services: 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.

Types of Operating Mechanism

The operating mechanism produced by our company mainly include the following types:
Modular Operating Mechanism
Modular operating mechanism of the VTZ-12 is an application instance of the VTZ series spring operating mechanism for 12kV.

Spring Operating Mechanism
Spring operating mechanism of the VTZ Series is a new generation operating mechanism for vacuum circuit breakers developed by XDTZ. It was designed after extensive and in-depth market research, integrating advanced domestic technology and experience.

Advantages of Operating Mechanism

Modular Operating Mechanism

Modular operating mechanism have many advantages, including:
Easy maintenance: The modular mechanism design allows for easy replacement of the closing and opening coils without the need for disassembling other components. This eliminates the need for testing or adjustment after replacement, ensuring that users can replace them independently, making subsequent maintenance more convenient.

High conductivity: Reasonable design of the conductive circuit, to meet the level of 1.1 times the rated current temperature rise.

Wide application range: The series covers a wide range of rated currents from 630a to 5000a and breaking currents from 20ka to 50ka, with a maximum operating altitude of 4500 meters and an operating temperature range from -40°c to 40°c.

Custom design support: We offer customization services based on user habits, retrofitting of old switches, and cooperation in new product development.

Spring Operating Me

Spring operating mechanism have many advantages, including:
Wide application range: The closing output energy range is wide, and we can modify the closing energy or output shaft arm to meet user requirements.

Easy maintenance: The modular mechanism design allows for easy replacement of the closing and opening coils without the need for disassembling other components. This eliminates the need for testing or adjustment after replacement, ensuring that users can replace them independently, making subsequent maintenance more convenient.

Stable performance: The mechanism parts are made of high quality steel, and some parts are made by precision casting molds. Specialized tools and professional measuring equipment ensure product consistency and reliability.

Application of Operating Mechanism

Modular Operating Mechanism

Modular operating mechanism can be used for a variety of purposes, including:A modular operating mechanism is a design approach that breaks down a system into independent, interchangeable modules. This allows for flexibility, customization, and easier maintenance. Applications span various fields, including electrical systems, operating theaters, and even software. Modular designs enable efficient upgrades, replacements, and adaptation to changing needs.

Spring Operating Mechanism

Spring operating mechanism be used for a variety of purposes, including: Operating mechanisms for circuit breaker units in gas insulated switchgear (GIS). Operating mechanisms for combined electrical appliances. Applicable for indoor and outdoor vacuum circuit breakers within 7.2kV to 40.5kV.

Specification of Modular Operating Mechanism

No.	Name	Unit	Data
1	Clearance between Moved and Fixed Contact	Mm	9±1
2	Contact Overtravel	Mm	3.5±0.5
3	Average Closing Speed	M/s	0.7±0.2
4	Average Opening Speed (Average Speed of First Opening at 6mm)	M/s	1.1±0.2
5	Rated Contact Pressure	N	2500±200N(25kA) 3100±200N(31.5kA) 4800±300N(40kA) 6000±500N(50kA)
6	Closing Time	Ms	30-70
7	Opening Time	Ms	20-50
8	Contact Bouncing Duration at Closing Operation	Ms	≤2
9	No-Simultaneity of Closing/Opening Operations of 3-Phase	Ms	≤2

Components of Modular Operating Mechanism

01/

Spring operating mechanism of the vtz series: Suitable for withdrawable and fixed circuit breakers with rated currents ≤5000a and breaking currents ≤50ka.

02/

Frame (housing): It is used to fix and install the spring operating mechanism, the transmission parts, and the support parts of the primary conductive circuit. The dimensions of the frame vary depending on the form and size of the switchgear. Common widths for withdrawable switchgear are 650mm, 800mm, 1000mm.

03/

Chassis truck: For withdrawable circuit breakers, it is used to move the breaker body from the test position to the working position, ensuring the engagement of the moved and fixed contacts. Common widths for withdrawable switchgear are 650mm, 800mm, 1000mm.

04/

Secondary wiring: Withdrawable circuit breakers use plug-socket connections to connect the secondary control circuit to the switchgear. Fixed circuit breakers use terminal connections. The secondary wiring serves as the communication bridge between the breaker body and the switchgear, and can be modified according to user requirements.

Specification of Spring Operating Mechanism

No.	Item		Unit	Data
1	Closing Output Energy		J(Joule)	90/181/243/362
2	Output Shaft Arm Angle (excluding output Shaft Arm)		Degrees	41±3
3	Energy Storage Motor	Rated Voltage Un	V	24/48/110/220
3	Energy Storage Motor	Operating Voltage Range	V	85%~110% Un
4	Closing Coil	Rated Voltage Un	V	24/48/110/220
4	Closing Coil	Operating Voltage Range	V	85%~110% Un
5	Opening Coil	Rated Voltage Un	V	24/48/110/220
5	Opening Coil	Operating Voltage Range	V	65%~120% Un
6	Interruption Time for One Reclosing without Current		S	0.3
7	Energy Storage Time of Rated Voltage Motor		S	≤15
8	Mechanical Endurance		Times	≥10000

Packing and Shipping of Operating Mechanism

Packing	Box
Shipping	Shipped by road, sea, rail

FAQ

Q: What is the spring operation mechanism?

A: The spring operating mechanism is a crucial component in high and medium-voltage circuit breakers. This mechanism employs the elastic potential energy stored in the spring to initiate the opening and closing operations in a circuit breaker.

Q: How do spring mechanisms work?

A: Yet, a spring is an elastic mechanical device or object that stores and releases energy when a force is applied to it. The elasticity allows the object to be deformed—stretched, squeezed, bent, twisted or compressed—only to return to its original shape once the energy from the deforming force is released.

Q: What is the hydraulic spring operating mechanism?

A: Hydraulic & spring operating mechanism principle for circuit breakers. The hydraulic pump moves oil from the low pressure oil reservoir (tank) to the energy storage side, builds up pressure and charges the spring assembly.

Q: How does a spring system work?

A: When a force is applied to a spring, it deforms by compression or extension and stores potential energy within its structure. This potential energy is converted into kinetic energy when the spring is released or unloaded, causing it to return to its original shape.

Q: What is a modular approach in operating system?

A: A modular operating system is built with its various functions broken up into distinct processes, each with its own interface. By contrast, a traditional monolithic operating system uses one static-compiled image and runs in an “all or nothing” mode.

Q: What is a modular approach in operating system?

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