CN220961711U - High-voltage equipment fault first-out judging device - Google Patents
High-voltage equipment fault first-out judging device Download PDFInfo
- Publication number
- CN220961711U CN220961711U CN202322386615.XU CN202322386615U CN220961711U CN 220961711 U CN220961711 U CN 220961711U CN 202322386615 U CN202322386615 U CN 202322386615U CN 220961711 U CN220961711 U CN 220961711U
- Authority
- CN
- China
- Prior art keywords
- fault
- auxiliary machine
- plc
- signal
- touch screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010586 diagram Methods 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 16
- 239000010705 motor oil Substances 0.000 description 10
- 239000003638 chemical reducing agent Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Programmable Controllers (AREA)
Abstract
The utility model discloses a high-voltage equipment fault first-out judging device which comprises a high-voltage cabinet, a PLC (programmable logic controller), a touch screen and an auxiliary machine connected with the high-voltage equipment; the fault signal output end of the auxiliary machine is electrically connected with the digital input end of the PLC, and the digital output end of the PLC is electrically connected with the tripping signal input end of the high-voltage cabinet; the PLC is in communication connection with the touch screen, and displays the fault signal state of the auxiliary machine through the touch screen, and can perform operations such as signal cutting, fault resetting and the like; a plurality of first-out fault judging modules are arranged in the PLC controller, the first-out fault signals are output through the first-out fault judging modules, and the first-out fault judging modules are displayed in a ladder diagram in a PLC instruction mode. The advantages are that: the first fault judging module is arranged in the PLC controller, so that the first fault auxiliary machine can be identified, the information of the first fault auxiliary machine is displayed on the display screen, the checking time for fault judgment by operators is greatly shortened, and the maintenance efficiency is improved.
Description
Technical field:
The utility model relates to the technical field of high-voltage equipment, in particular to a high-voltage equipment fault first-out judging device.
The background technology is as follows:
The large-scale high-voltage equipment is usually required to be connected into various auxiliary machines to cooperate with the operation of the auxiliary machines, under normal conditions, the high-voltage equipment and the auxiliary machines can be automatically controlled through automatic control systems such as DCS, and the like, but when the auxiliary machines are in fault, the problem of untimely control exists through the automatic control systems, so that the high-voltage equipment is provided with an emergency tripping circuit, as shown in figure 1, the fault tripping signal output end of each auxiliary machine is directly connected to the tripping signal input end of the high-voltage cabinet through a wiring terminal, and when the auxiliary machines are in heavy fault or fault tripping, the high-voltage cabinet performs synchronous tripping, and the tripping mode is also called hard interlocking tripping, so that the reaction speed is high, and the problem of untimely control of the control system can be compensated.
Currently, the emergency trip circuit has the following problems: when the high-voltage cabinet trips, an operator needs to maintain the fault auxiliary machine, but because any auxiliary machine fault can cause the high-voltage cabinet to trip, the high-voltage cabinet cannot record fault signals, and therefore, the operator can only check all auxiliary machine equipment so as to find faults; therefore, the operation staff has large workload in the maintenance process and cannot recover the high-voltage equipment in time, and the overall operation of the system is affected.
The utility model comprises the following steps:
The utility model aims to provide a high-voltage equipment fault first-out judging device which can rapidly identify a fault first-out auxiliary machine and reduce the working intensity of operators.
The utility model is implemented by the following technical scheme: a high-voltage equipment fault first-out judging device comprises a high-voltage cabinet, a PLC (programmable logic controller), a touch screen and an auxiliary machine connected with the high-voltage equipment; the fault signal output end of the auxiliary machine is electrically connected with the digital input end of the PLC, and the digital output end of the PLC is electrically connected with the tripping signal input end of the high-voltage cabinet; the PLC is in communication connection with the touch screen, and the fault signal state of the auxiliary machine is displayed through the touch screen; and a plurality of first-out fault judging modules are arranged in the PLC controller, the first-out fault signals are output through the first-out fault judging modules, and the first-out fault judging modules are displayed in a ladder diagram in a PLC instruction mode.
Preferably, an auxiliary machine fault interlocking signal output module is arranged in the PLC controller, the auxiliary machine fault interlocking signal output module comprises an auxiliary machine fault signal output module and a delay module which are connected through logic, and the auxiliary machine fault interlocking signal output module outputs a fault interlocking signal of the auxiliary machine to a tripping signal input end of the high-voltage cabinet; and the auxiliary machine fault interlocking signal output module is displayed in a ladder diagram in the form of a PLC instruction.
Preferably, a plurality of auxiliary machine signal control touch keys are arranged on a panel of the touch screen, and the corresponding auxiliary machine signals are controlled through the auxiliary machine signal control touch keys.
Preferably, an auxiliary machine interlocking signal control touch key is arranged on a panel of the touch screen, and interlocking signals of all auxiliary machines are controlled through the auxiliary machine interlocking signal control touch key.
The utility model has the advantages that: the operation is simple and the use value is high; the first fault judging module is arranged in the PLC controller, so that the first fault auxiliary machine can be identified, and the information of the first fault auxiliary machine is displayed on the display screen, so that the checking time for fault judgment by operators is greatly shortened, and the maintenance efficiency is improved; the auxiliary machine signal control touch keys are arranged on the touch screen, fault signals of the auxiliary machine can be directly cut off, input and other controls through the touch keys, operation is not needed through a DCS (distributed control system) and other automatic control systems, and maintenance flow of operators is simplified.
Description of the drawings:
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a diagram of a trip control circuit of the present prior art.
Fig. 2 is a schematic structural view of the present utility model.
Fig. 3 is a ladder diagram of a fault first-out judging module according to embodiment 1 of the present utility model.
Fig. 4 is a ladder diagram of an auxiliary interlock signal output module of embodiment 1.
Fig. 5 is a schematic diagram of a touch key of a touch screen in embodiment 1.
The specific embodiment is as follows:
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The first-out fault judging device for the high-voltage equipment shown in fig. 2 comprises a high-voltage cabinet, a PLC (programmable logic controller), a touch screen and an auxiliary machine connected with the high-voltage equipment.
The fault signal output end of the auxiliary machine is electrically connected with the digital input end of the PLC, and the digital output end of the PLC is electrically connected with the tripping signal input end of the high-voltage cabinet; the PLC is in communication connection with the touch screen, and fault signal states of the auxiliary machine are displayed through the touch screen.
A plurality of first-out fault judging modules are arranged in the PLC controller, the first-out fault signals are output through the first-out fault judging modules, and the first-out fault judging modules are displayed in a ladder diagram in a PLC instruction mode.
When any auxiliary machine has fault tripping, the PLC controller outputs a tripping signal to the tripping signal input end of the high-voltage cabinet. Specifically, an auxiliary machine fault interlocking signal output module is arranged in the PLC controller, the auxiliary machine fault interlocking signal output module comprises an auxiliary machine fault signal output module and a delay module which are connected through logic, and the auxiliary machine fault interlocking signal output module is displayed in a ladder diagram in a PLC instruction form. And outputting fault interlocking signals of any auxiliary machine to a tripping signal input end of the high-voltage cabinet through an auxiliary machine fault interlocking signal output module to control the high-voltage cabinet to trip.
In order to increase the control of the device on the fault signals of the auxiliary machines, a plurality of auxiliary machine signal control touch keys are arranged on a panel of the touch screen, the corresponding auxiliary machine signals are controlled through the auxiliary machine signal control touch keys, when the auxiliary machine is in a fault state and can not be reset as soon as possible, the auxiliary machine signals can be cut off through the auxiliary machine signal control touch keys on the touch screen, and other auxiliary machine signals are not influenced; when the auxiliary machine is recovered to be normal, the signal of the auxiliary machine is input again through the auxiliary machine signal control touch key on the touch screen.
In addition, be equipped with auxiliary machinery interlocking signal control touch key on the panel of touch-sensitive screen, can control the interlocking signal of all auxiliary machinery through auxiliary machinery interlocking signal control touch key, when need cut off or throw in the signal of all auxiliary machinery, touch this key can.
Example 1:
The apparatus of the present utility model will be described in detail by taking a high-voltage apparatus (main motor of cement mill) of the company as an example.
The auxiliary machine connected with the main motor of the cement mill comprises a main motor oil station, a main speed reducer oil station, a No. 1 slipper oil station, a No. 2 slipper oil station, a water resistor, a camera entering button and an emergency stop button; the fault signal output ends of the auxiliary machine are respectively connected with the PLC, and the connection ports of the fault signal output ends and the PLC are shown in table 1. The PLC is internally provided with a corresponding main motor oil station fault first-out judging module, a main speed reducer oil station fault first-out judging module, a 1# slipper oil station fault first-out judging module, a 2# slipper oil station fault first-out judging module, a water resistance fault first-out judging module, a camera entering fault first-out judging module and a scram button fault first-out judging module, and outputs a first-out fault signal through the corresponding fault first-out judging module.
TABLE 1 connection description of auxiliary machine fault signals and PLC controller
| PLC input terminal name | Auxiliary machine fault signal name |
| I0.0 | Main motor oil station fault signal |
| I0.1 | Main speed reducer oil station fault signal |
| I0.2 | 1# Slipper oil station fault signal |
| I0.3 | 2# Slipper oil station fault signal |
| I0.4 | Water resistance fault signal |
| I0.5 | Camera failure signal |
| I0.6 | Scram button fault signal |
| I4.0 | Trip of main motor breaker of cement mill |
| M9.7 | Auxiliary machine fault reset signal |
Further, the fault first-out judging module is displayed in a ladder diagram in the form of a PLC instruction. As shown in fig. 3, which is a ladder diagram corresponding to the first-output fault judging module of the main speed reducer oil station, since the ladder diagram structure of each first-output fault judging module of the auxiliary machine is the same, the first-output fault judging modules of other faults are not unfolded and described.
After the PLC completes the first fault judgment of the corresponding signals according to the instructions, the fault signals are finally output at the ports shown in the table 2 and displayed on the touch screen.
TABLE 2 description of first output ports for failure of PLC controllers
| PLC output terminal name | Auxiliary machine fault first-out signal name |
| M0.0 | Main motor oil station fault signal first-out |
| M0.1 | Main speed reducer oil station fault signal first goes out |
| M0.2 | First output of fault signal of No. 1 sliding shoe oil station |
| M0.3 | First output of fault signal of No. 2 slide shoe oil station |
| M0.4 | First-out of water resistance fault signal |
| M0.5 | First-out of camera fault signal |
| M0.6 | Emergency stop button fault signal first-out |
In order to realize control of the high-voltage cabinet according to the state of the fault signal of the auxiliary machine, an auxiliary machine fault interlocking signal output module which is displayed in a ladder diagram in the form of a PLC instruction is arranged in the PLC controller, and FIG. 4 is a ladder diagram of the auxiliary machine fault interlocking signal output module, and comprises the auxiliary machine fault signal output modules and a delay module T37 which are logically connected, and fault interlocking signals of the auxiliary machine are output to a tripping signal input end of the high-voltage cabinet through the auxiliary machine fault interlocking signal output module; when any auxiliary machine fails and a high level is output at the failure signal output end of the PLC, the tripping signal input end of the high-voltage cabinet receives the high level, and the tripping of the high-voltage cabinet is controlled.
In order to increase the processing capability of the device for emergency, for example, under the condition that part of auxiliary machines fail and cannot be recovered temporarily, a corresponding auxiliary machine signal control touch key is arranged on the touch screen, and as shown in fig. 5, the cutting and throwing control of the fault signals of the corresponding failed auxiliary machines can be realized through the touch key.
Specifically, to control the auxiliary machine signals and control the high-voltage cabinet, the output signals of the ports of the PLC controller are shown in table 3.
TABLE 3 output instruction of auxiliary machine signal control and high-voltage cabinet control port of PLC controller
| PLC output terminal name | Output control signal name |
| M1.0 | Main motor oil station signal input/cut-off control |
| M1.1 | Main speed reducer oil station signal drop/cut control |
| M1.2 | Signal input/cut control of No. 1 slide shoe oil station |
| M1.3 | 2# Slipper oil station signal input/cut control |
| M1.4 | Water resistance signal on/off control |
| M1.5 | In-camera signal input/cut-out control |
| M1.6 | Scram button signal input/cut control |
| Q0.0 | High-voltage cabinet tripping signal |
| M9.5 | Auxiliary machinery linkage signal input/cut-off control |
Description of use: the device can be used for identifying the first fault of the auxiliary machine and controlling the fault signal of the auxiliary machine, and can be used for controlling the high-voltage cabinet according to the state of the auxiliary machine.
(1) The specific working process for identifying the first fault of the auxiliary machine is as follows: taking the first-out identification of the main motor oil station fault as shown in fig. 3 as an example, when the main motor oil station breaks down, the main motor breaker of the cement mill trips, the main motor oil station fault signal output end outputs a high level, and at this time, if the main motor oil station signal is not cut off, the auxiliary machine interlocking signal is not cut off totally, and the auxiliary machine is not reset by the fault, the main motor oil station fault signal first-out output end M0.0 outputs the high level, and the fault first-out signal is displayed.
(2) The working process for controlling the high-voltage cabinet according to the state of the auxiliary machine is as follows: the high-voltage cabinet is controlled through the auxiliary machine fault interlocking signal output module shown in fig. 4, if at least one auxiliary machine signal is not independently cut off and all auxiliary machine fault interlocking signals are not totally cut off, when the fault signal output end of at least one auxiliary machine outputs a high level, the PLC controller enters delay, and if the high level is not recovered after the delay is finished, the PLC controller outputs the high level through the high-voltage cabinet tripping signal output end Q0.0 to control the tripping of the high-voltage cabinet.
(3) The specific working process for controlling the auxiliary machine signals is as follows: when the input/cut-off control is required for the fault signal of any auxiliary machine, as shown in fig. 5, the corresponding auxiliary machine signal control touch key is touched on the touch screen, and then the PLC controller receives the control signal of the touch screen to perform the input/cut-off control for the signal of the corresponding port. When the interlocking signals of all the auxiliary machines are required to be controlled, the touch key is controlled by touching the interlocking signals of the auxiliary machines on the touch screen.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (4)
1. The first-out fault judging device for the high-voltage equipment is characterized by comprising a high-voltage cabinet, a PLC (programmable logic controller), a touch screen and an auxiliary machine connected with the high-voltage equipment;
The fault signal output end of the auxiliary machine is electrically connected with the digital input end of the PLC, and the digital output end of the PLC is electrically connected with the tripping signal input end of the high-voltage cabinet;
The PLC is in communication connection with the touch screen, and the fault signal state of the auxiliary machine is displayed through the touch screen;
and a plurality of first-out fault judging modules are arranged in the PLC controller, the first-out fault signals are output through the first-out fault judging modules, and the first-out fault judging modules are displayed in a ladder diagram in a PLC instruction mode.
2. The first-out fault judging device of the high-voltage equipment according to claim 1, wherein an auxiliary machine fault interlocking signal output module is arranged in the PLC, the auxiliary machine fault interlocking signal output module comprises an auxiliary machine fault signal output module and a delay module which are logically connected, and the auxiliary machine fault interlocking signal is output to a tripping signal input end of the high-voltage cabinet through the auxiliary machine fault interlocking signal output module;
And the auxiliary machine fault interlocking signal output module is displayed in a ladder diagram in the form of a PLC instruction.
3. The high voltage equipment failure first-out judging device according to claim 1 or 2, wherein a plurality of auxiliary machine signal control touch keys are arranged on a panel of the touch screen, and corresponding auxiliary machine signals are controlled through the auxiliary machine signal control touch keys.
4. The high-voltage equipment fault first-out judging device according to claim 3, wherein an auxiliary machine interlocking signal control touch key is arranged on a panel of the touch screen, and interlocking signals of all auxiliary machines are controlled through the auxiliary machine interlocking signal control touch key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322386615.XU CN220961711U (en) | 2023-09-01 | 2023-09-01 | High-voltage equipment fault first-out judging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322386615.XU CN220961711U (en) | 2023-09-01 | 2023-09-01 | High-voltage equipment fault first-out judging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220961711U true CN220961711U (en) | 2024-05-14 |
Family
ID=91018269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322386615.XU Active CN220961711U (en) | 2023-09-01 | 2023-09-01 | High-voltage equipment fault first-out judging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220961711U (en) |
-
2023
- 2023-09-01 CN CN202322386615.XU patent/CN220961711U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103019218B (en) | Railway signal device utilizing dual-CPU (central processing unit) redundancy and control method of railway signal device | |
| CN202435023U (en) | Novel intelligent controller of outdoor pole-mounted switch | |
| CN107933613B (en) | Non-national standard turnout driving system based on two-by-two architecture | |
| CN104967220A (en) | Transformer substation monitoring system | |
| CN101403391B (en) | Novel duplicate-power double-fan intelligent monitoring protection device | |
| CN108448718B (en) | One-key sequential control method and system for intelligent substation protection device | |
| CN105137958A (en) | Railway under-vehicle power supply main control board detection device and detection method | |
| CN220961711U (en) | High-voltage equipment fault first-out judging device | |
| CN203535152U (en) | Recessive defect detecting device for external starting contacts of failure protection equipment | |
| CN101714776B (en) | 10KV station electric control system of convertor station adopting selecting 2 from 3 logic | |
| CN101101002A (en) | PLC based three lane tunneling aeration machine integrated control system | |
| CN206117845U (en) | Spare signal automatic switch -over circuit of video | |
| CN104979906B (en) | The anti-error alarm device of the hard pressing plate of relay protection | |
| CN208862627U (en) | A kind of coal mine low-voltage flameproof type dual power supply control device | |
| CN207366993U (en) | A kind of mining six circuits vacuum electromagnetic starter of unit bus type | |
| CN110955223A (en) | Crane fault diagnosis system and diagnosis method thereof | |
| CN111459013A (en) | Switching system of submarine cable oil pump station equipment signal | |
| CN205805978U (en) | Electromagnetic starter for coal mine blower system | |
| CN210007366U (en) | stable control device for electric power system | |
| CN211529626U (en) | DCS (distributed control system) architecture for nuclear power reactor | |
| CN203630783U (en) | Multi-channel serial port negater with monitoring function | |
| CN212033829U (en) | Quick-switching system for preventing voltage loss of service power manual switching bus | |
| CN215932432U (en) | Single-rack centralized maintenance control system based on rolling mill zero-speed signal | |
| CN218760043U (en) | Vibration protection device of steam turbine generator unit | |
| CN214455970U (en) | Elevator safety arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |