CN-224233328-U - Electric operation protection connecting piece device

Abstract

The utility model discloses an electric operation protection connecting piece device, which relates to the technical field of relay protection devices of power systems and comprises an electric executing mechanism, a connecting rod, a connecting piece body, a state monitoring module and a control module, wherein the electric executing mechanism comprises a motor and a transmission assembly, the output end of the motor can realize axial displacement and radial rotation under the action of the transmission assembly, the connecting rod is driven by the electric executing mechanism to realize axial displacement and radial rotation, the connecting piece body is arranged on the connecting rod and is matched with an electric disk cabinet contact to realize on-off operation, the state monitoring module is used for monitoring the state of the connecting piece body, and the control module is used for controlling driving parameters of the motor and judging whether the control is in place or not according to the monitoring result of the state monitoring module. The utility model can improve the continuous sheet throwing and retreating efficiency, realize one-key operation, reduce the risk of human misoperation, ensure the safety of an electric power system and realize real-time monitoring and remote control of the operation state.

Inventors

• LIU XIAOBO
• YANG CHAOLEI
• XU MENG
• CHEN LING
• HU JIANGUO
• PENG YIFAN
• HE MENG
• ZHAO YUN

Assignees

• 三峡金沙江川云水电开发有限公司

Dates

Publication Date

20260512

Application Date

20250513

Claims (9)

1. 1. An electrically operated protective web device comprising: The electric actuating mechanism comprises a motor and a transmission assembly, and the output end of the motor can realize axial displacement and radial rotation under the action of the transmission assembly; the connecting rod is driven by the electric actuating mechanism to realize axial displacement and radial rotation; the connecting piece body is arranged on the connecting rod and matched with the contacts of the electrical panel cabinet to realize on-off operation; the state monitoring module is used for monitoring the state of the connecting piece body; and the control module is used for controlling the motor driving parameters and judging whether the control is in place or not according to the monitoring result of the state monitoring module.
2. 2. An electrically operated protective web device as defined in claim 1, wherein said transmission assembly includes: The screw nut mechanism converts the rotary motion into axial displacement and the worm and gear mechanism realizes radial rotation.
3. 3. An electrically operated protective web arrangement according to claim 2, characterized in that the axial travel of the spindle nut mechanism is + -15 mm and the rotation angle of the worm gear mechanism is 45 °.
4. 4. An electrically operated protective web device according to claim 1, wherein the link ends are provided with spring contacts, and the web body is mounted on the spring contacts.
5. 5. The electrically operated protective web device of claim 4, wherein the condition monitoring module comprises: The pressure sensor is used for detecting contact pressure, and the position encoder is used for detecting the displacement of the connecting rod.
6. 6. The electrically operated protective web device of claim 5, wherein the spring contact has a contact pressure threshold of 10N, and wherein position locking is triggered when the pressure sensor detects a pressure value greater than or equal to 10N.
7. 7. The electrically operated protective patch device of claim 1, wherein the control module is integrated with an RS485 communication interface supporting MODBUS protocol communication with a substation automation system.
8. 8. The electrically operated protective web device of claim 1, wherein the electric actuator and the connecting rod are further provided with a limiting device for limiting the rotation angle of the connecting rod.
9. 9. The electrically operated protective web device of claim 1, wherein the control module comprises a microprocessor and a driver circuit.

Description

Electric operation protection connecting piece device Technical Field The utility model relates to the technical field of relay protection devices of power systems, in particular to an electric operation protection connecting device. Background The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. The continuous sheet switching control system of the existing relay protection device adopts a mechanical operation structure, and the technology of the continuous sheet switching control system is realized by depending on a physical contact mechanism consisting of a continuous sheet body, a fixed clamping seat and a manual operation rod. The technical scheme has the inherent defects that firstly, the operation efficiency is limited by a manual operation mode, particularly in a complex system comprising a multi-stage connecting piece structure, the time consumption of a throwing and retreating process is obviously increased due to piece-by-piece manual operation, the quick operation requirement of an electric power system is difficult to meet, secondly, the operation reliability is greatly influenced by artificial factors, the problems of connecting piece dislocation, contact virtual connection and the like are easy to occur in the push-pull process, the malfunction or refusal operation risk of a protection device is increased, and furthermore, the abrasion is easy to occur due to frequent plug in the long-term use of a mechanical structure, the contact resistance is abnormally increased, the service life of equipment is shortened, and the maintenance frequency is increased. More importantly, the prior art lacks an effective state feedback mechanism, the actual contact state of the connecting piece cannot be monitored in real time after the operation is finished, and hidden operation safety hazards exist. Along with the increasing demand of intelligent substation for remote controllability and state visualization of protection equipment, the technical requirement of intelligent development of a modern power system is difficult to be met by a traditional manual operation mode. Disclosure of utility model The utility model aims to solve the problems in the prior art and provides an electric operation protection connecting piece device. The technical scheme of the utility model is as follows: an electrically operated protective web device comprising: The electric actuating mechanism comprises a motor and a transmission assembly, and the output end of the motor can realize axial displacement and radial rotation under the action of the transmission assembly; the connecting rod is driven by the electric actuating mechanism to realize axial displacement and radial rotation; the connecting piece body is arranged on the connecting rod and matched with the contacts of the electrical panel cabinet to realize on-off operation; the state monitoring module is used for monitoring the state of the connecting piece body; and the control module is used for controlling the motor driving parameters and judging whether the control is in place or not according to the monitoring result of the state monitoring module. Further, the transmission assembly includes: The screw nut mechanism converts the rotary motion into axial displacement and the worm and gear mechanism realizes radial rotation. Further, the axial stroke of the screw nut mechanism is + -15mm, and the rotation angle of the worm gear mechanism is 45 degrees. Further, the tail end of the connecting rod is provided with an elastic contact, and the connecting piece body is arranged on the elastic contact. Further, the status monitoring module includes: The pressure sensor is used for detecting contact pressure, and the position encoder is used for detecting the displacement of the connecting rod. Further, the contact pressure threshold value of the elastic contact is 10N, and when the pressure value detected by the pressure sensor is more than or equal to 10N, position locking is triggered. Further, the control module is integrated with an RS485 communication interface and supports the MODBUS protocol to communicate with the substation automation system. Further, limiting devices are further arranged on the electric actuating mechanism and the connecting rod and used for limiting the rotation angle of the connecting rod. Further, the control module comprises a microprocessor and a driving circuit. The utility model also provides a control method of the electric operation protection connecting device, which comprises the following steps: the method comprises the following steps of: Step S1, a motor driving connecting rod axially extends to a set stroke; Step S2, driving the connecting rod to rotate clockwise for 45 degrees to complete contact engagement; step S3, locking the current position when the pressure sensor detects that the contact pressure is more than or equal to 10N; and (3) exiting the