CN203747378U - Transformer microcomputer protection system - Google Patents
Transformer microcomputer protection system Download PDFInfo
- Publication number
- CN203747378U CN203747378U CN201420114307.XU CN201420114307U CN203747378U CN 203747378 U CN203747378 U CN 203747378U CN 201420114307 U CN201420114307 U CN 201420114307U CN 203747378 U CN203747378 U CN 203747378U
- Authority
- CN
- China
- Prior art keywords
- transformer
- diode
- port
- microcomputer protection
- protection system
- 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.)
- Expired - Fee Related
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a protection system and provides a transformer microcomputer protection system aimed at a poor anti-interference capability of non electric quantity protection of a transformer. The transformer microcomputer protection system comprises a power supply, a binary input end, a diode 1, an optical isolator, a diode 2, a resistor, a binary input common port, a transformer microcomputer protection device, an output module, an input module, a transformer detecting unit, and an intermediate relay. The transformer detecting unit is connected with the input module and the two ends of the winding of the intermediate relay. One end of the normally-open contact of the intermediate relay, the binary input end, and the cathode of the diode 1 are connected successively. The anode of the diode 1 is connected with the port 1 of the optical isolator. The other end of the normally-open contact of the intermediate relay is connected with the power supply. The port 2 of the optical isolator is connected with the cathode of the diode 2. The port 3 and the port 4 of the optical isolator are connected with the output module. The anode of the diode 2, the resistor, and the binary input common port are connected successively. The utility model is suitable for a transformer microcomputer protection system.
Description
Technical field
The utility model relates to transformer, particularly a kind of transformer microcomputer protection system.
Background technology
Transformer non-electricity protection refers to the fault actions being reflected by transformer non-electric quantity or the protection of posting a letter; mainly contain gas, temperature, pressure, speed etc.; the dry contact of these reflection running state of transformers, enters protective device as intake, realizes and reporting to the police and trip avoidance function.
At present, the transformer non-electricity protection non-electric charge quantity signallings that adopt directly access transformer microcomputer protection device formation protective circuit more, realize signal alarm and trip avoidance function.But the protective circuit antijamming capability that obtains transformer non-electricity protection in prior art is not strong, easily malfunction, causes the non-fault trip of transformer, equipment to have a power failure, and affects power consumer life, production.
Utility model content
Technical problem to be solved in the utility model, provides transformer microcomputer protection system, to reach, effectively avoids various interference, reduces the effect of protective relaying maloperation.
The utility model solve the technical problem, the technical scheme adopting is, transformer microcomputer protection system, comprise power supply, transformer microcomputer protection device, transformer microcomputer protection device comprises intake input module and output module, also comprise input module, transformer detecting unit and auxiliary relay, described intake input module comprises intake input, diode one, optical isolator, diode two, resistance and opening into public port, the negative electrode of the light-emitting diode of described optical isolator inside is counted port one, anode is counted port two, the emitter of triode is counted port three, collector electrode is counted port four, input module is connected with transformer detecting unit, transformer detecting unit is connected respectively with the winding two ends of auxiliary relay, one end of the normally opened contact of auxiliary relay is connected to power supply, the other end of the normally opened contact of auxiliary relay, the negative pole of intake input and diode one connects successively, the anode of diode one is connected with port one, port two is connected with the negative pole of diode two, port three and port four are connected with output module respectively, the anode of diode two, resistance and opening into public port connects successively.
Concrete, described diode one and diode two are voltage stabilizing didoe.
Concrete, described transformer microcomputer protection system, also comprises tripper, described tripper is connected with output module.
Detailed, described transformer microcomputer protection system, also comprises warning device, described warning device is connected with output module.
Detailed, described warning device is buzzer and/or LED lamp.
The beneficial effects of the utility model are, by adopt auxiliary relay and transformer microcomputer protection device intake input module through the light of voltage stabilizing every the circuit forming, auxiliary relay operation voltage disturbs much larger than external loop, add that transformer microcomputer protection device intake input module is that light with voltage-stabiliser tube is every having antijamming capability, increased the anti-tampering ability of the non-amount protective circuit of transformer, can effectively avoid going out and disturb and cause the non-amount protection of transformer intake action outlet tripping operation in transformer microcomputer protection device because of protective circuit, cause transformer to have a power failure; Simultaneously, between increasing in the non-amount protective circuit of transformer relay and with the light of voltage-stabiliser tube every loop, the intake of transformer microcomputer protection device is inputted to light every disturbing and done effective isolation with external loop, prevent the possibility that external loop disturbs the opto-electronic conversion intake interface of the transformer microcomputer protection device causing to damage, thus the useful life that can effectively improve transformer microcomputer protection device; And by adopting auxiliary relay and jointly preventing that every transformer microcomputer protection device intake input module transformer non-electricity protection is disturbed the method with malfunction through the light of voltage stabilizing, increase expense is lower, can be widely used in transformer microcomputer protection field.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the utility model consolidation depressor microcomputer protection system embodiment;
Fig. 2 is the structural circuit figure of the utility model consolidation depressor microcomputer protection system embodiment;
Wherein, the port of 1--optical isolator, the port two of 2--optical isolator, the port three of 3--optical isolator, the port four of 4--optical isolator.
Embodiment
Below in conjunction with drawings and Examples, describe the technical solution of the utility model in detail:
In the utility model pin prior art, obtain the not strong problem of protective circuit antijamming capability of transformer non-electricity protection, a kind of transformer microcomputer protection system is provided, comprise power supply, transformer microcomputer protection device, transformer microcomputer protection device comprises intake input module and output module, also comprise input module, transformer detecting unit and auxiliary relay, described intake input module comprises intake input, diode one, optical isolator, diode two, resistance and opening into public port, the negative electrode of the light-emitting diode of described optical isolator inside is counted port one, anode is counted port two, the emitter of triode is counted port three, collector electrode is counted port four, input module is connected with transformer detecting unit, transformer detecting unit is connected respectively with the winding two ends of auxiliary relay, one end of the normally opened contact of auxiliary relay is connected to power supply, the other end of the normally opened contact of auxiliary relay, the negative pole of intake input and diode one connects successively, the anode of diode one is connected with port one, port two is connected with the negative pole of diode two, port three and port four are connected with output module respectively, the anode of diode two, resistance and opening into public port connects successively.By adopting auxiliary relay access protection system, auxiliary relay operation voltage disturbs much larger than external loop, increased the anti-tampering ability of the non-amount protective circuit of transformer, can effectively avoid going out and disturb and cause the non-amount protection of transformer intake action outlet tripping operation in transformer microcomputer protection device because of protective circuit, cause transformer to have a power failure; Simultaneously, relay circuit between increasing in the non-amount protective circuit of transformer, transformer microcomputer protection device and external loop interference have been done to effective isolation, prevent the possibility that external loop disturbs the opto-electronic conversion intake interface of the transformer microcomputer protection device causing to damage, thus the useful life that can effectively improve transformer microcomputer protection device; And by adopting auxiliary relay to prevent that transformer non-electricity protection is disturbed the method with malfunction, hardware configuration is simple, debugging is convenient, cost is low, can be widely used in transformer microcomputer protection field.
Embodiment
Transformer microcomputer protection system in this example, as shown in Figure 1, comprises transformer microcomputer protection device, input module, transformer detecting unit, auxiliary relay.Transformer microcomputer protection device comprises intake input module and output module, described input module, transformer detecting unit, auxiliary relay,, intake input module and output module connect successively.Auxiliary relay rated voltage is selected according to protective circuit access voltage, scope of application 12V～380V.And there is one and above normally opened contact
Preferably, as shown in Figure 2, intake input module comprises intake input, diode one, optical isolator, diode two, resistance and opening into public port, input module is connected with transformer detecting unit, transformer detecting unit is connected respectively with the winding two ends of auxiliary relay, one end of the normally opened contact of auxiliary relay is connected to power supply, the other end of the normally opened contact of auxiliary relay, the negative pole of intake input and diode one connects successively, the anode of diode one is connected with the port of optical isolator 1, the port 22 of optical isolator is connected with the negative pole of diode two, the port 33 of optical isolator and the port 44 of optical isolator are connected with output module respectively, the anode of diode two, resistance and opening into public port connects successively.Detailed, diode one and diode two are voltage stabilizing didoe.
Preferably, the transformer microcomputer protection system that this is routine, also comprises tripper, and described tripper is connected with output module; Also comprise warning device, described warning device is connected with output module.Detailed, warning device is buzzer and/or LED lamp.
In sum, non-electric charge quantity signalling when the output of auxiliary relay receiving transformer side detecting element, by non-electric charge quantity signalling, start auxiliary relay Working winding, auxiliary relay Working winding is obtained electric, and auxiliary relay normally opened contact is closed, the normally opened contact of described intake input module access auxiliary relay, starts intake input module by normally opened contact, thereby exports tripping operation and send alarm signal.
Claims (5)
1. transformer microcomputer protection system, comprise power supply, transformer microcomputer protection device, transformer microcomputer protection device comprises intake input module and output module, it is characterized in that, also comprise input module, transformer detecting unit and auxiliary relay, described intake input module comprises intake input, diode one, optical isolator, diode two, resistance and opening into public port, the negative electrode of the light-emitting diode of described optical isolator inside is counted port one, anode is counted port two, the emitter of triode is counted port three, collector electrode is counted port four, input module is connected with transformer detecting unit, transformer detecting unit is connected respectively with the winding two ends of auxiliary relay, one end of the normally opened contact of auxiliary relay is connected to power supply, the other end of the normally opened contact of auxiliary relay, the negative pole of intake input and diode one connects successively, the anode of diode one is connected with port one, port two is connected with the negative pole of diode two, port three and port four are connected with output module respectively, the anode of diode two, resistance and opening into public port connects successively.
2. transformer microcomputer protection system according to claim 1, is characterized in that, described diode one and diode two are voltage stabilizing didoe.
3. transformer microcomputer protection system according to claim 2, is characterized in that, described transformer microcomputer protection system, also comprises tripper, and described tripper is connected with output module.
4. transformer microcomputer protection system according to claim 3, is characterized in that, described transformer microcomputer protection system, also comprises warning device, and described warning device is connected with output module.
5. transformer microcomputer protection system according to claim 4, is characterized in that, described warning device is buzzer and/or LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420114307.XU CN203747378U (en) | 2014-03-13 | 2014-03-13 | Transformer microcomputer protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420114307.XU CN203747378U (en) | 2014-03-13 | 2014-03-13 | Transformer microcomputer protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747378U true CN203747378U (en) | 2014-07-30 |
Family
ID=51347137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420114307.XU Expired - Fee Related CN203747378U (en) | 2014-03-13 | 2014-03-13 | Transformer microcomputer protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203747378U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305235A (en) * | 2015-05-07 | 2016-02-03 | 国家电网公司 | Portable relay protection device for distribution network |
| CN113036715A (en) * | 2021-05-11 | 2021-06-25 | 宝钢湛江钢铁有限公司 | Control loop capable of improving anti-interference capability of non-electric quantity protection device of transformer |
-
2014
- 2014-03-13 CN CN201420114307.XU patent/CN203747378U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305235A (en) * | 2015-05-07 | 2016-02-03 | 国家电网公司 | Portable relay protection device for distribution network |
| CN105305235B (en) * | 2015-05-07 | 2017-05-03 | 国家电网公司 | portable relay protection device for distribution network |
| CN113036715A (en) * | 2021-05-11 | 2021-06-25 | 宝钢湛江钢铁有限公司 | Control loop capable of improving anti-interference capability of non-electric quantity protection device of transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203747378U (en) | Transformer microcomputer protection system | |
| CN202204893U (en) | On-line leakage current monitoring system | |
| CN203299320U (en) | Simple power grid wire break alarm | |
| CN204230865U (en) | A kind of motor protecting device | |
| CN204992521U (en) | Electric energy meter that single -phase electric energy meter operated a switch control circuit and made with this circuit | |
| CN204189728U (en) | A kind of functional module of circuit breaker and circuit breaker | |
| CN203118869U (en) | Relay control circuit | |
| CN101828872B (en) | Drinking water machine leakage-proof control device | |
| CN203595753U (en) | Alternating-current component detection device for direct-current power supply | |
| CN204832858U (en) | Galvanic isolation formula guard grating | |
| CN103324108A (en) | Control device used for achieving intermittent service of single-chip microcomputer | |
| CN104682334A (en) | Guard grating circuit and lamp | |
| CN201281888Y (en) | Gang control device for electric fire alarm and fire alarm system | |
| CN204681312U (en) | A kind of Intelligent photovoltaic lightningproof header box | |
| CN204118566U (en) | A kind of breaker cabinet with electric leakage alarm | |
| CN206272139U (en) | A kind of electronic type of distribution terminal it is anti-jump and point, combined floodgate monitoring arrangement | |
| CN202330537U (en) | Overvoltage detecting circuit based on voltage regulator diode | |
| CN202141494U (en) | Liquid level real time monitoring device | |
| CN208608716U (en) | A kind of differential protective system | |
| CN202678208U (en) | A gas relay used by a transformer | |
| CN201758278U (en) | Bus bar controller | |
| CN204087011U (en) | A kind of ac electrode formula water level detecting and controlling circuit | |
| CN204480446U (en) | Coal gas explosion alarm and power circuit thereof | |
| CN201879496U (en) | Anti-leakage controller for drinking water machine | |
| CN202975166U (en) | Monitoring circuit for insulation impedance of photovoltaic grid-connected inverter |
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: 20140730 Termination date: 20180313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |