CN201917609U - High-voltage electrified display - Google Patents
High-voltage electrified display Download PDFInfo
- Publication number
- CN201917609U CN201917609U CN2011200197628U CN201120019762U CN201917609U CN 201917609 U CN201917609 U CN 201917609U CN 2011200197628 U CN2011200197628 U CN 2011200197628U CN 201120019762 U CN201120019762 U CN 201120019762U CN 201917609 U CN201917609 U CN 201917609U
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- display device
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- threshold adjustment
- adjustment circuit
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Abstract
The utility model discloses a high-voltage electrified display comprising an amplifying circuit, a threshold adjusting circuit, a lock-out device and a display device, wherein the amplifying circuit is connected with the threshold adjusting circuit; and the threshold adjusting circuit is connected with the lock-out device and the display device. The display further comprises a signal record and communication circuit connected between the amplifying circuit and the threshold adjusting circuit for storing data and communicating with a remote information center. The display can perform remote monitoring, facilitates in-time maintenance to accidents, and can store data. Once safety accidents occur, the recorded data can work as accident analysis references. The display is of great significance to the safety of a power supply network.
Description
Technical field
The utility model relates to electrical measuring device, is meant a kind of high-voltage charge display device especially.
Background technology
State Grid Corporation of China issued in 2006, prevent from clearly to stipulate in the electric misoperation safety management regulation: can't satisfy the equipment that prevents the electric misoperation requirement to using conventional locking technology, as interconnection, enclosed type electrical equipment etc., should adopt technical measures such as installing charged display device additional and reach and prevent the electric misoperation requirement.To adopting the charged display device of indirect electrical verification, when possessing, technical conditions should connect the mandatory blocking function when operating with error-proof device to be grounded.
High-voltage charge display device is applicable on the electrical equipment network that exchanges 50Hz, rated voltage 40.5-550KV or on the equipment, is used to reflect charged state, prevents electric misoperation.This device is installed in line-to-ground disconnecting link, busbar grounding disconnecting link and bus and presses on the change ground connection disconnecting link, can play the effect that prevents charged mistake splice grafting ground disconnecting link.
The principle of work of high-voltage charge display device is: can produce induction field around high voltage electric equipment or supply line, in this electric field, place electrode, to on pole plate, produce induced charge, to the electric current of its discharge generation induction current, by wave filter undesired signal is filtered, thereby obtain useful input signal.By this signal is carried out processing and amplifying, and carry out threshold value adjustment, thereby reach the purpose of reaction high-tension line operation conditions.Light traffic lights by the electric signal after handling again and show the whether charged of high-tension line, finish locking and control external circuit by driving relay.High voltage display device comprises sensor, holding circuit, filtering circuit, amplifying circuit, threshold adjustment circuit and the blocking device that connects successively; described threshold adjustment circuit is used for the signal value after amplifying and a threshold ratio; if signal value is greater than threshold value; then control the blocking device action; if less than threshold value; then control blocking device and be failure to actuate, described threshold adjustment circuit connects the traffic lights display device simultaneously.Sensor is installed near the high-voltage charged body, and remainder all is installed in the metal shell.
This device is by display device and control passive bus (node that is connected blocking device), can reach locking and Presentation Function, but can't be notified to long-range information center, so can't on-call maintenance, and owing to casualty data can't be stored, just powerless for analysis and circuit alarm that signal changes.
The utility model content
Technical problem to be solved in the utility model provide a kind of can telemonitoring, can on-call maintenance when accident occurring, and can record data, with the data of record high-voltage charge display device as the analysis foundation of accident.
In order to address the above problem, the utility model is taked following technical scheme:
A kind of high-voltage charge display device, comprise amplifying circuit, threshold adjustment circuit, blocking device and display device, amplifying circuit connects threshold adjustment circuit, threshold adjustment circuit connects blocking device and display device simultaneously, also comprise signal record and communicating circuit, be connected between described amplifying circuit and the threshold adjustment circuit, be used to preserve data and carry out communication with long-range information center.
Preferably, described signal record and communicating circuit comprise A/D converter, real-time clock, storer, CPU and communication interface, described amplifying circuit connects CPU by A/D converter, and real-time clock is connected CPU respectively with storer, and CPU connects long-range information center by communication interface.
Preferably, described storer is the ferroelectric memory of 256K.
Preferably, described communication interface is by GPRS communication module and long-range information center's communication.
Preferably, described threshold adjustment circuit comprises the adjustable resistance that can adjust the threshold adjustment circuit threshold value.
The beneficial effects of the utility model are: the utility model can remote monitoring, be convenient to on-call maintenance when accident occurring, and can store data, in case security incident takes place, the data of record can be used as the analysis foundation of accident, and are significant to the safety of supply network.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model;
Fig. 2 is the concrete structure figure of the utility model signal record and communicating circuit.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
With reference to Fig. 1; a kind of high-voltage charge display device; comprise sensor; holding circuit; filtering circuit; amplifying circuit; threshold adjustment circuit; be used to preserve data and and the long-range information center signal record and the communicating circuit that carry out communication; blocking device and display device (showing with traffic lights usually); described sensor; holding circuit; filtering circuit; amplifying circuit; threshold adjustment circuit connects successively; threshold adjustment circuit also connects blocking device; with the signal value after amplifying and a threshold ratio; if signal value is greater than threshold value; by the action of blocking device control blocking device; if less than threshold value; then blocking device is failure to actuate; threshold adjustment circuit also connects display device, and whether be used for display device charged.
Threshold adjustment circuit comprises the adjustable resistance that can adjust the threshold adjustment circuit threshold value.Signal record and communicating circuit are connected between described amplifying circuit and the threshold adjustment circuit.
With reference to Fig. 2, described signal record and communicating circuit comprise A/D converter, real-time clock, storer, CPU and communication interface, described amplifying circuit connects CPU by A/D converter, and real-time clock is connected CPU respectively with storer, and CPU connects long-range information center by communication interface.
Whether this device can detect network (equipment) outward at the charging equipment safe distance charged, and with electromagnetic lock, Mechanically programm's lock, error-proof devices such as microcomputer locking cooperate implements forced blocking, is the desirable safety feature that prevents electric misoperation on electrical network or the equipment.
The utility model is to have increased signal record and communication module behind amplifying circuit.Signal record and communication module mainly are made up of A/D converter, real-time clock, storer, CPU and communication interface.CPU analyzes, compares according to the content of A/D converter transmission, if the fluctuation of signal exceeds certain limit, thinking reports to the police takes place, CPU can read real-time clock, and the sampled value of A/D converter and real-time clock are formed an alarm logging, stores in the storer, when long-range information center, when CPU wanted data, CPU can take out alarm logging from storer by communication interface, passed to long-range information center.The remote information center reaches the purpose of monitoring consumer duty by analyzing the data that CPU spreads out of in real time, if unusual, can arrange the inspection of related personnel's line walking.Like this, this device not only can be finished the demonstration of abnormal signal and the latch-up protection of equipment, can also notify managerial personnel to carry out fault handling the very first time, helps managerial personnel's analyzing failure cause.
This module adopts the A/D converter of high precision 12BIT, and sample rate can be configured by communication interface, ranges up to 500K.Real-time clock provides time coordinate for incident, can calibrate by communication interface.Described storer is the ferroelectric memory of 256K, and the ferroelectric memory of 256K can circulate and store 25000 records, and the data power down can be preserved more than 10 years, can repeat unlimited use.Communication interface comprises the port of a serial ports and one 485 bus, and flank speed 115200BPS can utilize serial ports to add GPRS communication module and long-range information center's communication, reaches real time monitoring function.
The beneficial effects of the utility model are:
1, can remote monitoring, be convenient to on-call maintenance when accident occurring, for adding, electroscopic device the wing of information provides Back ground Information for the whole power utilization network of monitoring.
2, can store data, in case security incident takes place, the data of record can be used as the analysis foundation of accident, and are significant to the safety of supply network.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. high-voltage charge display device, comprise amplifying circuit, threshold adjustment circuit, blocking device and display device, amplifying circuit connects threshold adjustment circuit, threshold adjustment circuit connects blocking device and display device simultaneously, it is characterized in that, also comprise signal record and communicating circuit, be connected between described amplifying circuit and the threshold adjustment circuit, be used to preserve data and carry out communication with long-range information center.
2. high-voltage charge display device according to claim 1, it is characterized in that, described signal record and communicating circuit comprise A/D converter, real-time clock, storer, CPU and communication interface, described amplifying circuit connects CPU by A/D converter, real-time clock is connected CPU respectively with storer, and CPU connects long-range information center by communication interface.
3. high-voltage charge display device according to claim 2 is characterized in that, described storer is the ferroelectric memory of 256K.
4. high-voltage charge display device according to claim 2 is characterized in that, described communication interface is by GPRS communication module and long-range information center's communication.
5. according to each described high-voltage charge display device among the claim 1-4, it is characterized in that described threshold adjustment circuit comprises the adjustable resistance that can adjust the threshold adjustment circuit threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200197628U CN201917609U (en) | 2011-01-21 | 2011-01-21 | High-voltage electrified display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200197628U CN201917609U (en) | 2011-01-21 | 2011-01-21 | High-voltage electrified display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201917609U true CN201917609U (en) | 2011-08-03 |
Family
ID=44417403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200197628U Expired - Fee Related CN201917609U (en) | 2011-01-21 | 2011-01-21 | High-voltage electrified display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201917609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777061A (en) * | 2014-01-28 | 2014-05-07 | 国家电网公司 | Remote-control electrification display locking device |
-
2011
- 2011-01-21 CN CN2011200197628U patent/CN201917609U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777061A (en) * | 2014-01-28 | 2014-05-07 | 国家电网公司 | Remote-control electrification display locking device |
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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: 20110803 Termination date: 20160121 |
|
| EXPY | Termination of patent right or utility model |