CN202522638U - Grid failure intelligent identification device - Google Patents
Grid failure intelligent identification device Download PDFInfo
- Publication number
- CN202522638U CN202522638U CN2012200373906U CN201220037390U CN202522638U CN 202522638 U CN202522638 U CN 202522638U CN 2012200373906 U CN2012200373906 U CN 2012200373906U CN 201220037390 U CN201220037390 U CN 201220037390U CN 202522638 U CN202522638 U CN 202522638U
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- circuit
- filter amplification
- amplification circuit
- intelligent recognition
- recognition equipment
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Abstract
The utility model discloses a grid failure intelligent identification device, which comprises a microprocessor; a display screen, a keyboard, a first filter amplifying circuit, a second filter amplifying circuit and a zero-crossing detection circuit respectively connected with the microprocessor; a current transformer connected with the first filter amplifying circuit; a voltage transformer connected with the second filter amplifying circuit; and a voltage reference circuit. The zero-crossing detection circuit is respectively connected with the first filter amplifying circuit and the second filter amplifying circuit. The first filter amplifying circuit, the second filter amplifying circuit and the zero-crossing detection circuit are respectively connected with the voltage reference circuit. With the grid failure intelligent identification device, valid values of the electric quantity before and after the failure can be automatically recorded, the electric quantity information in the failure period can be called out at any time by an operator, and through systematic comparison and analysis of an expert, the failure area and the severity degree of the failure can be identified.
Description
Technical field
The utility model relates to a kind of electric network fault Intelligent Recognition equipment.
Background technology
Along with the development and the progress of science and technology of the big production of modernization, the demand of electric power is grown with each passing day, reliability, economy and the stability of Electric Power Generating Equipment are had higher requirement.Along with the large-scale production of electric power, the structure of power equipment becomes increasingly complex, and function is more and more perfect; Automaticity is also increasingly high; The relation of each subsystem is also more and more closer, in case certain part of equipment breaks down breaks in production probably just in operation process; Cause enormous economic loss, even the consequence of bringing on a disaster property.
At present, the location of low-voltage network line fault section is the problem of making us relatively perplexing always.In case the low tension switch tripping operation can cause the power failure in whole distribution zone.Press traditional approach, blindly hunting at low tension switch outlet, branch case, cable outlet even user side, all might be broken down, and also possible breakdown of low tension switch itself, and user's overload also possibly cause switch dropout phenomenon in addition.During handling failure, seek scope is too wide at the scene for the operations staff, can't find the trouble spot accurately immediately and get rid of fault, and the mode that often can only adopt examination to close is groped failure condition, and inefficiency and accuracy rate are very low.
Summary of the invention
The purpose of the utility model is to overcome the defective of prior art and a kind of electric network fault Intelligent Recognition equipment is provided; It is the electric weight effective value of record trouble front and back automatically; The operations staff can access each information about power of fault period at any time; Through comparison, the analysis of expert system, just can confirm the order of severity of fault zone and fault then.
The technical scheme that realizes above-mentioned purpose is:
A kind of electric network fault Intelligent Recognition equipment; Display screen, keyboard, first filter amplification circuit, second filter amplification circuit and the zero cross detection circuit that comprises microprocessor, is connected respectively with this microprocessor, the current transformer that is connected first filter amplification circuit, connect the voltage transformer (VT) and a voltage reference circuit of second filter amplification circuit, wherein:
Said zero cross detection circuit also is connected respectively with said first filter amplification circuit and second filter amplification circuit respectively;
Said current transformer is gathered power network current, and passes to said first filter amplification circuit;
Said voltage transformer (VT) is gathered line voltage, and passes to said second filter amplification circuit;
Said first filter amplification circuit, second filter amplification circuit and zero cross detection circuit are connected said voltage reference circuit respectively.
In above-mentioned electric network fault Intelligent Recognition equipment, said Intelligent Recognition equipment also comprises the communication interface that is connected with said microprocessor.
In above-mentioned electric network fault Intelligent Recognition equipment, said display screen is LED (light emitting diode) display screen or LCD (Liquid Crystal Display, LCD) display screen.
In above-mentioned electric network fault Intelligent Recognition equipment, said Intelligent Recognition equipment also is included as the power module of its power supply.
In above-mentioned electric network fault Intelligent Recognition equipment; Said microprocessor comprises three GPIO (General Purpose Input Output; General I/O) mouth and a SCI (serial communication interface) interface; Wherein, said three GPIO mouths are connected with keyboard with display screen, relay output circuit respectively; Said SCI interface connects said communication and connects.
In above-mentioned electric network fault Intelligent Recognition equipment, said Intelligent Recognition equipment also comprises the relay output circuit that is connected with said microprocessor.
The beneficial effect of the utility model is:
The utility model is installed in the recurrent distribution zone of fault (branch case, low tension switch, cable outlet etc. are located); In case low tension switch is threaded off; Relevant power supply area has a power failure, the electric weight effective value before and after the automatic record trouble of the utility model, and the operations staff can access each information about power of fault period at any time; Through comparison, the analysis of expert system, just can confirm the order of severity of fault zone and fault then.Like this, deal with problems with a definite target in view, improved the efficient of accident treatment greatly, also improved the security of operation of power distribution network.
Description of drawings
Fig. 1 is the structural representation of the electric network fault Intelligent Recognition equipment of the utility model.
Embodiment
To combine accompanying drawing that the utility model is described further below.
See also Fig. 1; A kind of electric network fault Intelligent Recognition equipment of the utility model; The display screen 2 that comprises microprocessor 1, is connected respectively with this microprocessor 1, relay output circuit 3, keyboard 4, first filter amplification circuit 5, second filter amplification circuit 6 and zero cross detection circuit 7, be connected first filter amplification circuit 5 current transformer 8, connect voltage transformer (VT) 9, voltage reference circuit 10 and the communication interface 11 of second filter amplification circuit 6, wherein:
Microprocessor 1 comprises three GPIO mouths and a SCI interface, and wherein, three GPIO mouths are connected with display screen 2, relay output circuit 3 and keyboard 4 respectively; The SCI interface connects communication interface 11;
Zero cross detection circuit 7 also is connected respectively with first filter amplification circuit 5 and second filter amplification circuit 6 respectively;
First filter amplification circuit 5, second filter amplification circuit 6 are connected voltage reference circuit 10 respectively with zero cross detection circuit 7; Voltage reference circuit 10 provides reference voltage to first filter amplification circuit 5, second filter amplification circuit 6 and zero cross detection circuit 7;
Current transformer 8 is gathered power network current I, and passes to first filter amplification circuit 5 and carry out filtering and amplification, passes to zero cross detection circuit 7 and microprocessor 1 with reference voltage after relatively again;
Voltage transformer (VT) 9 is gathered line voltage U, and passes to second filter amplification circuit 6 and carry out filtering and amplification, passes to zero cross detection circuit 7 and microprocessor 1 with reference voltage after relatively again;
The voltage signal and the current signal of 7 pairs of receptions of zero cross detection circuit in conjunction with reference voltage, carry out zero passage detection, and send to microprocessor 1 to the result;
The various types of signal of 1 pair of reception of microprocessor is carried out analyzing and processing, and simulating signal is converted into digital signal, and the information about power of day part is carried out stored record, display process result on display screen 2; Accept the control of keyboard 4 simultaneously, communicate through communication interface 11 and Fault Identification expert system (not shown); And when fault takes place, generate alarming short message automatically and it is sent to the Fault Identification expert system through communication interface 11; And when fault took place, the break-make of the switch of the power equipment (not shown) that microprocessor 1 can be monitored through relay output circuit 3 control the utility model was avoided the generation of some accidents.
In the present embodiment, display screen 2 is LED display or LCD display.
In the present embodiment, the Intelligent Recognition equipment of the utility model also is included as the power module (not shown) of its power supply.
The each several part of the utility model is all selected market product commonly used for use or is utilized the circuit of prior art self manufacture to realize.
In sum, the utility model is installed in the position that fault possibly occur in the distribution: like fault Yi Fa districts such as transformer outlet, branch case, cables, so that the electrical parameter of electric current, voltage effective value during monitoring failure.After fault takes place, carry out analysis-by-synthesis by the Fault Identification expert system, fault is prone to send out point investigates and locate, guarantee technician's rapidly removing faults, rush repair equipment, in time restore electricity, avoid the further expansion of the state of affairs, ensure the safety of electrical network.
Above embodiment only supplies to explain the usefulness of the utility model; But not to the restriction of the utility model; The technician in relevant technologies field under the situation of spirit that does not break away from the utility model and scope, can also make various conversion or modification; Therefore all technical schemes that are equal to also should belong to the category of the utility model, should be limited each claim.
Claims (6)
1. electric network fault Intelligent Recognition equipment; It is characterized in that; Display screen, keyboard, first filter amplification circuit, second filter amplification circuit and the zero cross detection circuit that comprises microprocessor, is connected respectively with this microprocessor, the current transformer that is connected first filter amplification circuit, connect the voltage transformer (VT) and a voltage reference circuit of second filter amplification circuit, wherein:
Said zero cross detection circuit also is connected respectively with said first filter amplification circuit and second filter amplification circuit respectively;
Said current transformer is gathered power network current, and passes to said first filter amplification circuit;
Said voltage transformer (VT) is gathered line voltage, and passes to said second filter amplification circuit;
Said first filter amplification circuit, second filter amplification circuit and zero cross detection circuit are connected said voltage reference circuit respectively.
2. electric network fault Intelligent Recognition equipment according to claim 1 is characterized in that said Intelligent Recognition equipment also comprises the communication interface that is connected with said microprocessor.
3. electric network fault Intelligent Recognition equipment according to claim 1 is characterized in that said display screen is LED display or LCD display.
4. electric network fault Intelligent Recognition equipment according to claim 1 is characterized in that said Intelligent Recognition equipment also is included as the power module of its power supply.
5. electric network fault Intelligent Recognition equipment according to claim 2 is characterized in that, said microprocessor comprises three GPIO mouths and a SCI interface, and wherein, said three GPIO mouths are connected with keyboard with display screen, relay output circuit respectively; Said SCI interface connects said communication interface.
6. electric network fault Intelligent Recognition equipment according to claim 1 is characterized in that said Intelligent Recognition equipment also comprises the relay output circuit that is connected with said microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200373906U CN202522638U (en) | 2012-02-06 | 2012-02-06 | Grid failure intelligent identification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200373906U CN202522638U (en) | 2012-02-06 | 2012-02-06 | Grid failure intelligent identification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202522638U true CN202522638U (en) | 2012-11-07 |
Family
ID=47105581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200373906U Expired - Fee Related CN202522638U (en) | 2012-02-06 | 2012-02-06 | Grid failure intelligent identification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202522638U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967778A (en) * | 2012-11-09 | 2013-03-13 | 北京天源科创风电技术有限责任公司 | Device and method for detecting power grid |
| CN103245845A (en) * | 2012-02-06 | 2013-08-14 | 上海市电力公司 | Intelligent grid fault recognition equipment |
| CN104502797A (en) * | 2014-12-10 | 2015-04-08 | 安徽国科电力设备有限公司 | Auxiliary grid fault analysis system |
-
2012
- 2012-02-06 CN CN2012200373906U patent/CN202522638U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245845A (en) * | 2012-02-06 | 2013-08-14 | 上海市电力公司 | Intelligent grid fault recognition equipment |
| CN102967778A (en) * | 2012-11-09 | 2013-03-13 | 北京天源科创风电技术有限责任公司 | Device and method for detecting power grid |
| CN102967778B (en) * | 2012-11-09 | 2016-05-11 | 北京天源科创风电技术有限责任公司 | A kind of electrical network checkout gear and detection method thereof |
| CN104502797A (en) * | 2014-12-10 | 2015-04-08 | 安徽国科电力设备有限公司 | Auxiliary grid fault analysis system |
| CN104502797B (en) * | 2014-12-10 | 2018-06-19 | 上海合凯电气科技有限公司 | Electric network fault Computer Aided Analysis System |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20200206 |