High-voltage switch fracture position detection device

Abstract

The utility model relates to the field of high-voltage switch detection equipment, in particular to a high-voltage switch fracture position detection device. The system comprises a high-voltage switch device, a constant current source or a constant voltage source, a servo motor driver and an oscilloscope. The high-voltage switch equipment, the constant current source or the constant voltage source and the servo motor driver are connected in series; and the oscilloscope is connected in parallel with the series circuit by being connected with the servo motor driver. The device provided by the utility model can directly detect the fracture position of the high-voltage switchgear, and the detection method is simple and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the field of high-voltage switch detection equipment, in particular to a high-voltage switch break position detection device. Background Art

[0002] Traditional high-voltage switchgear, driven by motors and spring mechanisms, suffers from shortcomings such as poor flexibility and high operational shock. With the rapid development of modern rare-earth permanent magnet motor technology, power electronics, motor vector control, and mechanical design, new servo motors and their control systems are increasingly meeting the requirements for high-voltage switchgear operation in terms of torque output, rotor inertia, response time, and servo capability. Their controllable output angle, speed, and energy are improving, laying the foundation for new motor-driven operating mechanisms for high-voltage switches. The use of servo motors to drive operating mechanisms is a key topic in the current power industry.

[0003] The mechanical characteristic detection method of high-voltage switches using servo motors to drive the operating mechanism is different from that of conventional switches. The servo motor can provide real-time feedback on characteristics such as torque, speed, and stroke on an oscilloscope, but the oscilloscope image cannot directly detect the fracture position of the high-voltage switchgear. Utility Model Content

[0004] In view of the problems existing in the background technology, a high-voltage switch break position detection device is proposed.

[0005] The utility model provides a high-voltage switch fracture position detection device, which includes a high-voltage switch device, a constant current source or a constant voltage source, a servo motor driver and an oscilloscope; the high-voltage switch device, the constant current source or the constant voltage source and the servo motor driver are connected in series; the oscilloscope is connected in parallel with the above series circuit by being connected to the servo motor driver.

[0006] Preferably, the constant current source or constant voltage source is connected to the high-voltage switchgear signal to obtain the break position data of the high-voltage switchgear.

[0007] Preferably, the constant current source or constant voltage source is connected to the servo motor driver signal to input the high-voltage switchgear break position signal into the servo motor driver terminal.

[0008] Preferably, the servo motor driver is connected to an oscilloscope signal, and the oscilloscope reflects the break position of the high-voltage switchgear and the stroke and speed of the motor in the high-voltage switchgear.

[0009] Compared with the prior art, the present invention has the following beneficial technical effects: a constant current source or a constant voltage source inputs the high-voltage switchgear fracture position signal into the servo motor driver terminal, and the high-voltage switchgear fracture position is reflected on the oscilloscope together with the motor stroke and speed in the high-voltage switchgear, so as to accurately measure the opening and closing speed and opening and closing time of the high-voltage switchgear. When the high-voltage switchgear is opened, the voltage or current signal disappears, and when it is closed, the voltage or current signal appears. The position where the signal disappears or appears on the oscilloscope is the fracture position. The device can directly detect the fracture position of the high-voltage switchgear, and the detection method is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural diagram of a device for detecting the break position of a medium- and high-voltage switch according to the present invention.

[0011] Reference numerals: 1. high-voltage switchgear; 2. constant current source or constant voltage source; 3. servo motor driver; 4. oscilloscope. DETAILED DESCRIPTION

[0012] like Figure 1 As shown, the present invention proposes a high-voltage switch break position detection device, including a high-voltage switch device 1, a constant current source or a constant voltage source 2, a servo motor driver 3 and an oscilloscope 4; the high-voltage switch device 1, the constant current source or the constant voltage source 2 and the servo motor driver 3 are connected in series; the oscilloscope 4 is connected in parallel with the above-mentioned series circuit by being connected to the servo motor driver 3.

[0013] It should be further explained that the constant current source or constant voltage source 2 obtains the break position data of the high voltage switchgear 1 by being connected to the high voltage switchgear 1 by signal.

[0014] It should be further explained that the constant current source or constant voltage source 2 is connected to the servo motor driver 3 via a signal, so as to input the break position signal of the high voltage switchgear 1 into the terminal of the servo motor driver 3 .

[0015] It should be further explained that the servo motor driver 3 is connected to the oscilloscope 4 via signals, and the oscilloscope 4 reflects the break position of the high-voltage switchgear 1 and the motor stroke and speed in the high-voltage switchgear 1 .

[0016] The operating principle of the present invention is as follows: A constant current source or constant voltage source 2 inputs a disconnect position signal of a high-voltage switchgear 1 into the terminals of a servo motor driver 3. The disconnect position of the high-voltage switchgear 1, along with the travel and speed of the motor in the high-voltage switchgear 1, is displayed on an oscilloscope 4, allowing for accurate measurement of the opening and closing speed and time of the high-voltage switchgear 1. The voltage or current signal disappears when the high-voltage switchgear 1 is opened, and appears when it is closed. The position where the signal disappears or appears on the oscilloscope 4 represents the disconnect position.

[0017] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A high-voltage switch break position detection device, characterized in that: The invention comprises a high-voltage switchgear (1), a constant current source or a constant voltage source (2), a servo motor driver (3) and an oscilloscope (4); the high-voltage switchgear (1), the constant current source or the constant voltage source (2) and the servo motor driver (3) are connected in series; and the oscilloscope (4) is connected in parallel with the series circuit of the high-voltage switchgear (1), the constant current source or the constant voltage source (2) and the servo motor driver (3) by being connected to the servo motor driver (3).

2. The high-voltage switch break position detection device according to claim 1, characterized in that: The constant current source or constant voltage source (2) obtains the break position data of the high-voltage switchgear (1) by being connected to the signal of the high-voltage switchgear (1).

3. The high-voltage switch break position detection device according to claim 2, characterized in that: The constant current source or constant voltage source (2) is connected to the servo motor driver (3) signal to input the high voltage switchgear (1) break position signal into the servo motor driver (3) terminal.

4. The high-voltage switch break position detection device according to claim 3, characterized in that: The servo motor driver (3) is connected to the oscilloscope (4) through signal connection, and the oscilloscope (4) reflects the break position of the high-voltage switchgear (1) and the motor stroke and speed in the high-voltage switchgear (1).

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