Gas-Insulated Switchgear Operating Device Segmentation
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Solution Overview
Problem
Conventional gas insulated switching apparatuses face challenges in downsizing the operating device and reducing the overall installation area due to the integral configuration of the drive unit and limited arrangement flexibility, leading to increased size and installation space requirements.
Innovation Solution
The use of a Geneva mechanism attached to the disconnector with a drive unit disconnected from it, transmitting driving force through a flexible wire, allowing for reduced size and improved flexibility in the operating device's arrangement, thereby reducing the overall installation area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the drive unit is integrated with the operating device, then the operating device can be mounted on the switch main body, but the size of the operating device increases and the installation area increases
Solution Approach 1:
The operating device is divided into two separate parts: the operating device main body (with Geneva mechanism) mounted on the switch main body, and the drive unit (with motor and power source) positioned separately. This segmentation allows the operating device to function while mounted on the switch, eliminating the need for increased installation area that would result from integrating the drive unit.
2Area of stationary object
If the operating device is installed at a position apart from the switch main body, then the mounting portion can be downsized, but the installation position of the operating device is limited
Solution Approach 1:
A flexible wire is used to connect the drive unit to the Geneva mechanism, replacing rigid mechanical linkages. This flexible connection allows the drive unit to be positioned at various locations around the switch main body without being constrained by fixed mounting positions, thereby improving installation flexibility while maintaining compact dimensions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration achieves downsizing of the operating device, enhances arrangement flexibility, and reduces the installation area of the gas insulated switching apparatus, improving workability and reducing the gap between line units.
Implementation Method 1
a wire 20 for transmitting a driving force generated by the drive unit 10 to the Geneva mechanism 3
Data Source
Figure 1~2
Figure 3(a)~4(c)
Figure 5(a)~6
AI summary
An operating device (1) for a disconnector (2) includes a drive unit (10), a Geneva mechanism (3), and a wire (20). The drive unit (10) includes a forwardly and reversely rotatable motor (11) serving as a drive source for driving a movable contactor of the disconnector (2), a power source (12) supplying power to the motor (11), and a pulley (14) connected to a rotary shaft (13) of the motor (11), and is disposed apart from the disconnector (2). The Geneva mechanism (3) includes a pulley (4) that rotates in the same direction as the pulley (14) with the rotation of the pulley (14), and a driven wheel (5) that is intermittently driven while the pulley (4) rotates and that is provided with a rotary shaft (6) connected to the movable contactor, and is attached to the disconnector (2) apart from the drive unit (10). Further, as a flexible rotational force transmission member, a wire (20) is stretched between the pulley (4) and the pulley (14).