CN214473851U - PMU artificial short circuit grounding test system based on electric operation - Google Patents
PMU artificial short circuit grounding test system based on electric operation Download PDFInfo
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- CN214473851U CN214473851U CN202120446207.7U CN202120446207U CN214473851U CN 214473851 U CN214473851 U CN 214473851U CN 202120446207 U CN202120446207 U CN 202120446207U CN 214473851 U CN214473851 U CN 214473851U
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Abstract
The utility model relates to an artifical short circuit ground test system of PMU based on electric operation, including the contact platform that connects gradually, isolation platform and fuse platform, contact platform includes first base and locates the load switch on the first base, isolation platform includes the second base and locates the isolator on the second base, contact platform is still including the first drive mechanism that is used for driving the load switch-on, isolation platform is still including the second drive mechanism that is used for driving the isolator switch-on, the system still includes the controller, first drive mechanism and second drive mechanism equally divide and do not be connected to power module and controller. Compared with the prior art, the utility model discloses a set up controller and two drive mechanism, can realize the remote control to load switch and isolator to avoid the safety problem that artifical direct operation load switch and isolator lead to.
Description
Technical Field
The utility model relates to an artifical short circuit ground test system especially relates to an artifical short circuit ground test system of PMU based on electric operation.
Background
With the gradual application of the PMU distribution network device, the frequency of performing the line short circuit grounding test is gradually improved for verifying the fault diagnosis and positioning functions. In the existing manual short circuit grounding test, a mode of manually touching a charged body by using an operating rod is adopted, and a short circuit is formed by using a charged circuit which is hung on the ground instantly. When the operating rod approaches or leaves, strong electric arcs are generated to possibly puncture the operating rod and hurt the eyesight of operators, the safety of testers cannot be guaranteed, and the personal safety of the operators is seriously threatened.
The manual mode of using the action bars can only carry out simple single-phase ground test, and each equipment is disconnected and the fusing state of fuse wire can't real-time supervision, and when changing the fuse wire in the experiment, operating personnel probably touched electrified position by mistake and led to the danger to take place. In addition, due to the limitation of the length of the operating rod, in an environment with high soil resistivity, a short circuit grounding test is difficult to perform due to overlarge step voltage of a short circuit point area.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an artifical short circuit ground test system of PMU based on electric operation, through setting up controller and two drive mechanism, can realize the remote control to load switch and isolator to avoid the safety problem that artifical direct operation load switch and isolator lead to.
The purpose of the utility model can be realized through the following technical scheme:
an electric operation-based PMU artificial short circuit grounding test system comprises a contact platform, an isolation platform and a fuse wire platform which are sequentially connected, wherein the contact platform comprises a first base and a load switch arranged on the first base, the isolation platform comprises a second base and an isolation switch arranged on the second base, the contact platform further comprises a first transmission mechanism for driving the load switch to be switched on and off, the isolation platform further comprises a second transmission mechanism for driving the isolation switch to be switched on and off,
the system further comprises a controller, and the first transmission mechanism and the second transmission mechanism are respectively connected to the power module and the controller.
The power module includes a UPS power source.
The power supply module comprises a mains network.
The contact platform further comprises a first electrified display module, the first electrified display module is arranged to be connected with the load switch in series, the isolation platform further comprises a second electrified display module, and the second electrified display module is arranged to be connected with the isolation switch in series.
The first electrified display module and the second electrified display module are both indicator lamps.
The first electrified display module and the second electrified display module are both electrified displays.
The system further comprises a monitoring module, wherein the monitoring module comprises a first monitoring platform, a second monitoring platform and a third monitoring platform which are respectively used for correspondingly monitoring the contact platform, the isolation platform and the fuse platform, and the first monitoring platform, the second monitoring platform and the third monitoring platform are all connected with the controller.
The monitoring platform comprises a holder and a camera.
The camera is a 360-degree panoramic camera.
The controller is configured to perform the steps of:
when the system is started, self-checking is carried out, and all input instructions are ignored during the self-checking period;
the holder is a three-axis holder.
Compared with the prior art, the utility model discloses following beneficial effect has:
1) through setting up controller and two drive mechanism, can realize the remote control to load switch and isolator to avoid the safety problem that artifical direct operation load switch and isolator lead to.
2) And the UPS power supply is adopted, so that the reliability is higher.
3) Two electrified display modules are arranged, so that the spot warning can be played, and the safety is improved.
4) By arranging the monitoring platform, the states of the checked fuse and the fuse can be remotely monitored.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a contact landing;
FIG. 3 is a schematic diagram of a load switch;
FIG. 4 is a schematic view of a first transmission;
wherein: 1. contact platform, 2, isolation platform, 3, fuse platform, 4, power module, 5, controller, 6, first monitoring platform, 7, second monitoring platform, 8, third monitoring platform, 9, take PMU to join in marriage the transmission line of net device, 10, ground net, 11, first base, 12, load switch, 13, driving gear, 121, switch blade, 122, transfer line, 123, driven gear.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The utility model provides an artifical short circuit ground test system of PMU based on electrically-operated, as shown in figure 1, including the contact platform 1 that connects gradually, isolation platform 2 and fuse platform 3, as shown in figure 2, contact platform 1 includes first base 11 and locates load switch 12 on the first base 11, isolation platform 2 includes the second base and locates the isolator on the second base, contact platform 1 still includes the first drive mechanism who is used for driving load switch 12 switching on and off, isolation platform 2 still includes the second drive mechanism who is used for driving the isolator switching on and off, the system still includes controller 5, first drive mechanism and second drive mechanism are equallyd divide and are connected to power module 4 and controller 5 respectively.
Through setting up controller 5 and two drive mechanism, can realize the remote control to load switch 12 and isolator to avoid the safety problem that artifical direct operation load switch 12 and isolator lead to.
In some embodiments, as shown in fig. 3 and 4, the load switch 12 includes a knife 121 and a transmission rod 122, wherein the knife 121 has three (only two are illustrated in the figures) and is linked by the transmission shaft, the first transmission mechanism includes a motor, a driving gear 13 and a driven gear 123, wherein the driven gear 123 is disposed on the transmission rod 122, the driving gear 13 is disposed on an output shaft of the motor, and the driving gear 13 and the driven gear 123 are engaged, so that the motion control of the knife 121 is realized by the motor.
In some embodiments, the power module 4 comprises a UPS power source, and in some embodiments, the power module 4 further comprises a utility power network.
In some embodiments, the contact platform 1 further comprises a first live display module, which is disposed in series with the load switch 12, and the isolation platform 2 further comprises a second live display module, which is disposed in series with the isolation switch, in some embodiments, both the first live display module and the second live display module are indicator lights. In some embodiments, the first charged display module and the second charged display module are both charged displays. Two electrified display modules are arranged, so that the spot warning can be played, and the safety is improved.
In some embodiments, the system further comprises a monitoring module comprising a first monitoring platform 6, a second monitoring platform 7 and a third monitoring platform 8 for monitoring the contact platform 1, the isolation platform 2 and the fuse platform 3, respectively, the first monitoring platform 6, the second monitoring platform 7 and the third monitoring platform 8 being connected to the controller 5.
In some embodiments, the monitoring platform includes a pan/tilt head and a camera, and specifically, the camera is a 360-degree panoramic camera.
In some embodiments, the controller 5 is configured to perform the steps of: when the system is started, self-checking is carried out, and all input instructions are ignored during the self-checking period; after the control command is sent to the first transmission mechanism and the second transmission mechanism once, self-locking is executed in a preset time interval, all input commands are ignored during the self-locking period, and the self-locking is designed, so that the control circuit can be prevented from mistakenly jumping due to repeated commands.
Specifically, the load switch 12 and the first transmission mechanism, the isolating switch and the second transmission mechanism are all designed in an insulating mode, and the fuse wire platform 3 is composed of a replaceable fuse wire, a composite post insulator and a platform base. The base of which is provided with a customized adjustable bracket. The contact platform 1, the isolation platform 2 and the fuse platform 3 are connected through insulated wires, and are adjusted according to different test contents in a single-phase independent and three-phase combined mode.
In some embodiments, the controller 5 is composed of a control panel, a video monitoring and operating panel, a contact platform 1 remote control device, an isolation platform 2 remote control device, and a safety lock key, wherein the control panel has two control line interfaces, which are respectively a contact platform 1 control interface and an isolation platform 2 control interface, and the two control line interfaces are respectively connected with the control line interfaces of the contact platform 1 and the isolation platform 2. The control panel is provided with four buttons, namely a contact platform 1 control panel switching-off button, a contact platform 1 control panel switching-on button, an isolation platform 2 control panel switching-off button and an isolation platform 2 control panel switching-on button. The remote control device of the contact platform 1 and the remote control device of the isolation platform 2 can realize the function of four buttons in the control panel in a wireless mode, in a word, the test system has two control modes of wired control and wireless control, and remote and local operation can be realized. The control platform is powered by a 24V direct current power supply. In addition, the remote control panel is provided with a safety lock key, when the fuse wire platform 3 needs to replace the fuse wire, an operator presses an emergency stop button, pulls down the safety lock key in the control platform and hands the safety lock key to a working responsible person for storage, and the working responsible person checks the safety lock key to agree and then returns the safety lock key to perform the test before the fuse wire is replaced and the test is repeated. After the installation step is completed, the control panel and the remote control device need to be debugged in sequence. Debugging a control panel: and (3) turning on the power supply main switches of the contact platform 1 and the isolation platform 2, and turning on a control panel control switch (each platform is self-checked 10 seconds after the power supply is turned on, and is inoperable in the self-checking period). And gradually pressing the on-off control buttons of the platforms to observe whether the platforms operate normally or not (after the platforms act once, continuous operation cannot be performed within 5 seconds, and the time difference is program self-locking, so that the purpose of preventing error jump caused by repeated control circuit instructions is achieved). Debugging a remote control device: after the control panel is debugged, the remote control device is debugged remotely, and is provided with a protection program to prevent remote control misoperation. Before each action operation, unlocking is needed, the operation is carried out after an unlocking key is pressed for 3 seconds, and the unlocking step is repeated before the next action operation. The system can be matched with a flexible assembly platform to use under the condition of complex terrain.
After the states of the remote control module and the monitoring module of the contact platform 1 and the fuse platform 3 are checked and the wiring of the equipment is correct, the insulated conducting wire for testing is connected into the tested circuit by a circuit live working person. During testing, an operator stands on the insulating blanket, and after hearing the password of a responsible person, the platform is controlled to be opened and closed remotely according to the password. After the operation is finished, the PMU system and the traveling wave distance measuring device obtain data and analyze the specific position of a fault point. If necessary, the fuse was replaced and the test was repeated. Before replacing the fuse, the contact platform 1 is confirmed to be in the off position, an operator presses an emergency stop button, pulls out a safety lock key and hands the safety lock key to a working responsible person for storage. And (4) before the test is repeated after the fuse wire is replaced, the safety lock key is returned to perform the test after the inspection approval of a working responsible person.
Claims (10)
1. An electric operation-based PMU artificial short circuit grounding test system comprises a contact platform, an isolation platform and a fuse wire platform which are sequentially connected, wherein the contact platform comprises a first base and a load switch arranged on the first base, the isolation platform comprises a second base and an isolation switch arranged on the second base,
the contact platform also comprises a first transmission mechanism for driving the switch on and off of the load switch, the isolation platform also comprises a second transmission mechanism for driving the switch on and off of the isolation switch,
the system further comprises a controller, and the first transmission mechanism and the second transmission mechanism are respectively connected to the power module and the controller.
2. The PMU artificial short-circuit ground test system according to claim 1, wherein the power module includes a UPS power supply.
3. The PMU artificial short-circuit grounding test system according to claim 1 or 2, characterized in that the power supply module comprises a commercial power network.
4. The PMU artificial short-circuit ground test system according to claim 1, wherein the contact platform further includes a first live display module provided in series with the load switch, and the isolation platform further includes a second live display module provided in series with the isolation switch.
5. The PMU artificial short circuit grounding test system according to claim 4, wherein the first and second live display modules are both indicator lamps.
6. The PMU artificial short-circuit grounding test system according to claim 4, wherein the first and second live display modules are both live displays.
7. The PMU artificial short circuit grounding test system according to claim 1, further comprising a monitoring module including a first monitoring platform, a second monitoring platform and a third monitoring platform for respectively monitoring the contact platform, the isolation platform and the fuse platform, wherein the first monitoring platform, the second monitoring platform and the third monitoring platform are connected to the controller.
8. The PMU artificial short circuit grounding test system according to claim 1, wherein the monitoring platform includes a pan-tilt and a camera.
9. The PMU artificial short circuit grounding test system according to claim 8, characterized in that the camera is a 360-degree panoramic camera.
10. The PMU artificial short circuit grounding test system according to claim 8, wherein the holder is a three-axis holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120446207.7U CN214473851U (en) | 2021-03-02 | 2021-03-02 | PMU artificial short circuit grounding test system based on electric operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120446207.7U CN214473851U (en) | 2021-03-02 | 2021-03-02 | PMU artificial short circuit grounding test system based on electric operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214473851U true CN214473851U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120446207.7U Active CN214473851U (en) | 2021-03-02 | 2021-03-02 | PMU artificial short circuit grounding test system based on electric operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214473851U (en) |
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2021
- 2021-03-02 CN CN202120446207.7U patent/CN214473851U/en active Active
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Address after: 200437 No. 171, Handan Road, Shanghai, Hongkou District Patentee after: EAST CHINA ELECTRIC POWER TEST AND RESEARCH INSTITUTE Co.,Ltd. Patentee after: SHANGHAI HENGNENGTAI ENTERPRISE MANAGEMENT Co.,Ltd. PUNENG POWER TECHNOLOGY ENGINEERING BRANCH Patentee after: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER Co. Patentee after: Shanghai DingKe Power Technology Engineering Co.,Ltd. Address before: 200437 Room 102, building 2, 171 Handan Road, Hongkou District, Shanghai Patentee before: SHANGHAI HENGNENGTAI ENTERPRISE MANAGEMENT Co.,Ltd. PUNENG POWER TECHNOLOGY ENGINEERING BRANCH Patentee before: EAST CHINA ELECTRIC POWER TEST AND RESEARCH INSTITUTE Co.,Ltd. Patentee before: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER Co. Patentee before: Shanghai DingKe Power Technology Engineering Co.,Ltd. |
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| CP03 | Change of name, title or address |