CN202930926U - Switch coil protector - Google Patents
Switch coil protector Download PDFInfo
- Publication number
- CN202930926U CN202930926U CN 201220684939 CN201220684939U CN202930926U CN 202930926 U CN202930926 U CN 202930926U CN 201220684939 CN201220684939 CN 201220684939 CN 201220684939 U CN201220684939 U CN 201220684939U CN 202930926 U CN202930926 U CN 202930926U
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- module
- output module
- cpu
- switch
- switch coil
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- 230000001012 protector Effects 0.000 title claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000003321 amplification Effects 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000001934 delay Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model relates to a switch coil protector. The switch coil protector is characterized by comprising a power supply module, a CPU module, a protection current output module, a protection voltage output module, a display module and a keyboard module, wherein the CPU module is connected with the power supply module, and the protection current output module, the protection voltage output module, the display module and the keyboard module are all connected with the CPU module. The beneficial effects of the switch coil protector are that firstly, the switch coil protector is in series connection to an opening/closing coil loop to detect a coil loop signal, thereby enabling a coil loop to be automatically disconnected or connected and preventing the coil loop from being burnt out; secondly, through the protection current output module and the protection voltage output module, an actual current and an actual voltage can be detected and are compared with a set current and a set voltage, so that a switch of a power substation is properly opened and closed; thirdly, the switch coil protector has a secondary closing function, thus minimizing on-site repairing probabilities, reducing workload of workers and improving the production efficiency; fourthly, all components are components that are superior in quality in terms of industrial grade, so that a product is good in reliability and high in stability; and fifthly, a CPU is adopted for control, and is accurate in determination and fast in speed.
Description
Technical field
The utility model relates to a kind of switch coil protector.
Background technology
Electric substation's switch divide, during closing operation, control loop with the signal of telecommunication deliver to minute, closing coil, due to a variety of causes such as mechanism's bite, operating voltage be too low, in the situation that installation's power source still keeps, minute, closing coil is in for a long time "on" position, thereby makes coil produce Flux saturation, heating burns out, cause minute, the closing coil cisco unity malfunction, increase the repairing workload, production efficiency is reduced.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above that prior art exists and a kind of switch coil protector is provided, and is serially connected with on separating brake/closing coil loop, and the magnetic test coil loop signal makes wire loop automatic disconnection or closure, prevents that wire loop from burning.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: switch coil protector; it is characterized in that comprising power module; the CPU module that is connected with power module, the protective current output module that all is connected with the CPU module, protection Voltage-output module, display module and Keysheet module.The switch coil protector that present patent application relates to is serially connected on the separating brake of electric substation's switch/combined floodgate (be called for short minute/close a floodgate) wire loop; detect minute/switching signal and minute, switching current; time synchronisation; minute, the switching signal time is during greater than setting time; switch coil protector control disconnection divides, closing circuit, plays a protective role.Minute, closing protective delays time to setting time, switch coil protector recovers minute, closing circuit, can re-start minute, close a floodgate, if minute, combined floodgate is unsuccessful, switch coil protector disconnects minute again, closing circuit, and the switch coil is not burned; If divide, close a floodgate successfully, just the site examining and repairing of can sending someone, minimizing personnel's workload has improved the efficient of producing.
As further improving and replenishing technique scheme; the utility model adopts following technical measures: described protective current output module comprises a DA output module that is connected with the CPU module; the amplifier constant current output module that is connected with an AD output module; with the AD feedback module that amplifier constant current output module is connected, the feedback end of described AD feedback module is connected with the CPU module.
Described protection Voltage-output module comprises the 2nd DA output module that is connected with the CPU module; the amplifier Voltage-output module that is connected with the 2nd DA output module; with the AD acquisition module that amplifier Voltage-output module is connected, the feedback end of described AD acquisition module is connected with the CPU module.
The beneficial effect that the utlity model has: 1, be serially connected with on separating brake/closing coil loop, the magnetic test coil loop signal makes wire loop automatic disconnection or closure, prevents that wire loop from burning; 2, compare for detection of actual current, voltage and setting electric current, voltage by protective current output module and protection Voltage-output module, make electric substation's switch carry out appropriate dividing/closing operation; 3, possess the secondary closing function, reduce the site examining and repairing probability, reduce personnel's workload, improved the efficient of producing; 4, all components and parts all adopt the components and parts that technical grade has good quality, and product reliability is good, and stability is strong; 5, adopt CPU to control, accuracy of judgement, speed is fast; 6, easy-to-connect is installed simply.
Description of drawings
Fig. 1 is a kind of operation principle block diagram of the present utility model.
Fig. 2 is the utility model particular circuit configurations schematic diagram.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: switch coil protector as shown in Figure 1 and Figure 2, comprises power module, the CPU module that is connected with power module, the protective current output module that all is connected with the CPU module, protection Voltage-output module, display module and Keysheet module.CPU pin P01-06 in the CPU module is connected with Keysheet module.
During use, be serially connected on the separating brake of electric substation's switch/combined floodgate (be called for short minute/close a floodgate) wire loop, detect minute/switching signal and minute, switching current; time synchronisation; minute, the switching signal time is during greater than setting time, switch coil protector control disconnect minute, closing circuit, play a protective role.Minute, closing protective delays time to setting time, switch coil protector recovers minute, closing circuit, can re-start minute, close a floodgate, if minute, combined floodgate is unsuccessful, switch coil protector disconnects minute again, closing circuit, and the switch coil is not burned; If divide, close a floodgate successfully, just the site examining and repairing of can sending someone, minimizing personnel's workload has improved the efficient of producing.
In addition, electric substation's switch arranges emergency bypass, when switch coil protector faults itself, automatically switches to emergency bypass, but guarantees that the switch closing divides/closes a floodgate.In this simultaneously, when switch coil protector was in malfunction, the information such as the malfunction of switch coil protector, emergency bypass operating state were presented on display module.
The protective current output module comprises a DA output module that is connected with the CPU module; the amplifier constant current output module that is connected with an AD output module; with the AD feedback module that amplifier constant current output module is connected, the feedback end of described AD feedback module is connected with the CPU module.CPU(in the CPU module is 32 for CPU) pin P21-24 is connected with a DA output module (wherein DA is 16 DA) signal, transfer by 16 DA the amplification amplifier OP07(that voltage signal is input in amplifier constant current output module to and namely amplify operational amplifier), amplifying amplifier OP07 outputs to and follows triode NPN in amplifier constant current output module, consist of a constant-current source, the triode E utmost point seals in a precision resistance, consists of feedback circuit.
Protection Voltage-output module comprises the 2nd DA output module that is connected with the CPU module; the amplifier Voltage-output module that is connected with the 2nd DA output module; with the AD acquisition module that amplifier Voltage-output module is connected, the feedback end of described AD acquisition module is connected with the CPU module.the pin P11-P14 signal output of CPU in the CPU module, 16 DA in the 2nd DA output module are converted to aanalogvoltage to digital signal, the aanalogvoltage precision can accurate 1 microvolt signal, then, voltage signal is transferred to the amplification amplifier OP07 in amplifier Voltage-output module, the Voltage-output of amplifying signal amplifies by the one-level following stage that amplifies in amplifier the output resistance increase that amplifier OP07 improves output stage, make the on-load ability of output voltage stronger, affected by load resistance less, feedback circuit is converted into digital data acquisition output by amplifying 16 AD of amplifier OP07 in feeding back to the AD acquisition module by voltage following output stage.Compared the difference of set point and actual output variable by CPU, adjust P11-P14 digital signal size by CPU operation method PM, accurately control the amplification amplifier OP07 Voltage-output in amplifier Voltage-output module.
The above is only preferred embodiment of the present utility model, is not limited to the utility model.In the above-described embodiments, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (3)
1. switch coil protector, is characterized in that comprising power module, the CPU module that is connected with power module, the protective current output module that all is connected with the CPU module, protection Voltage-output module, display module and Keysheet module.
2. switch coil protector according to claim 1; it is characterized in that described protective current output module comprises a DA output module that is connected with the CPU module; the amplifier constant current output module that is connected with an AD output module; with the AD feedback module that amplifier constant current output module is connected, the feedback end of described AD feedback module is connected with the CPU module.
3. switch coil protector according to claim 1 and 2; it is characterized in that described protection Voltage-output module comprises the 2nd DA output module that is connected with the CPU module; the amplifier Voltage-output module that is connected with the 2nd DA output module; with the AD acquisition module that amplifier Voltage-output module is connected, the feedback end of described AD acquisition module is connected with the CPU module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684939 CN202930926U (en) | 2012-12-13 | 2012-12-13 | Switch coil protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684939 CN202930926U (en) | 2012-12-13 | 2012-12-13 | Switch coil protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202930926U true CN202930926U (en) | 2013-05-08 |
Family
ID=48220836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220684939 Expired - Fee Related CN202930926U (en) | 2012-12-13 | 2012-12-13 | Switch coil protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202930926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332961A (en) * | 2014-11-04 | 2015-02-04 | 国家电网公司 | Burning proof protection device for switch opening and closing coil |
-
2012
- 2012-12-13 CN CN 201220684939 patent/CN202930926U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332961A (en) * | 2014-11-04 | 2015-02-04 | 国家电网公司 | Burning proof protection device for switch opening and closing coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20191213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |