CN205039533U - Line protection measurement and control device - Google Patents
Line protection measurement and control device Download PDFInfo
- Publication number
- CN205039533U CN205039533U CN201520795141.7U CN201520795141U CN205039533U CN 205039533 U CN205039533 U CN 205039533U CN 201520795141 U CN201520795141 U CN 201520795141U CN 205039533 U CN205039533 U CN 205039533U
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Abstract
The utility model relates to an electric automatization field, the utility model aims at providing a line protection measurement and control device, the technical scheme who adopts is: a line protection measurement and control device, includes signal acquisition module and host system, its characterized in that: the signal acquisition module is passed through signal amplification circuit and is connected host system output man -machine circuit of connection and protection circuit with the host system input, host system includes the three signal detection circuit of parallel connection between host system input and signal selecting circuit, and signal selecting circuit connects output circuit, and output circuit connects the host system output, the utility model discloses in time identification signal detection circuitry damages the false signal of transmission or does not transmit the signal because of circuit or device, guarantees that output circuit obtains true signal and carries out work, realizes protection and observing and controlling to the circuit.
Description
Technical field
The utility model belongs to electric automatization field, is specifically related to a kind of route protection measure and control device.
Background technology
The complete wire line protection device that route protection measure and control device is is basic configuration with electric current, voltage protection and three_phase reclosing.Be applicable to the direction line protection in the non-direct ground system of 35kV and following electric pressure or grounded system via resistance and observing and controlling, can install on the spot at switch cubicle, also can be installed on control room by group screen.
Current digital line protection measure and control device all adopts mould electricity, number electricity and microcontroller unit; observing and controlling to a certain degree and protection can be realized; but its reliability, long-time stability are not high; integrated level is low; cannot the working condition of reaction feeder circuit of omnidirectional high-accuracy, setting operation is very inconvenient.The situation that particularly None-identified signal is made mistakes when interference or device failure appear in signal, more can not the signal of debug in time, also cannot inquire about accident record, be unfavorable for that staff safeguards.
Summary of the invention
The purpose of this utility model is to provide a kind of identifiable design rub-out signal and the route protection measure and control device got rid of.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of route protection measure and control device, comprise signal acquisition module and main control module, it is characterized in that: described signal acquisition module is connected with main control module input by signal amplification circuit, main control module output connects man-machine circuit and protective circuit; Described main control module comprises three signal deteching circuits be connected in parallel between main control module input and signal selecting circuit, and signal selecting circuit connects output circuit, and output circuit connects main control module output.
Preferred: described signal acquisition module comprises the voltage sampling circuit, current sampling circuit, break detection circuit, humidity temperature pickup and the switching value output module that are arranged in parallel.
Preferred: described protective circuit comprises the RS485 circuit connecting other communication apparatus and the control circuit controlling main circuit switch.
The utility model has following beneficial effect: by CPU collaborative work multiple in main control module; the rub-out signal that timely identification signal detection circuit may transmit because of circuit or device failure or not transmission of signal; ensure that output circuit obtains actual signal and carries out work, realize the protection and measurement and control to circuit.
Accompanying drawing explanation
Fig. 1 is control principle drawing of the present utility model.
Embodiment
A kind of route protection measure and control device as shown in Figure 1, comprises signal acquisition module 1 and main control module 3, and described signal acquisition module 1 is connected with main control module 3 input by signal amplification circuit 2, and main control module 3 output connects man-machine circuit 4 and protective circuit 5.Realize the collection of signal, amplification, process and output overall process, to realize the function of protection and measurement and control.
In order to realize identification to rub-out signal and process, main control module 3 as shown in Figure 1 comprises three signal deteching circuits 31 be connected in parallel between main control module 3 input and signal selecting circuit 32, signal selecting circuit 32 connects output circuit 33, and output circuit 33 connects main control module 3 output.During normal work, the parallel connection of two signal deteching circuits 31 enters circuit, receive simultaneously amplified after signal and carry out observing and controlling calculate then export to signal selecting circuit 32, if signal selecting circuit 32 receives two identical signals, then directly be transferred to output circuit 33, if the signal that receives is different or somely do not have signal, then start the 3rd signal deteching circuit 31, with the 3rd signal with it the first two signal alternative go out correct signal, if two signal deteching circuits 31 are all impaired, there is no signal, then perform according to the signal of last signal deteching circuit 31.So just can ensure the correctness of signal, also many one deck guarantees, avoid the problems affect of protection supervisory equipment self functional realiey.
According to actual conditions, described signal acquisition module 1 comprises the voltage sampling circuit 11, current sampling circuit 12, break detection circuit 13, humidity temperature pickup 14 and the switching value output module 15 that are arranged in parallel.Can realize short circuit, make moist, temperature is too high, the observing and controlling of the fault such as humidity and open circuit and protection, also can select and add other circuit needing to protect observing and controlling according to side circuit.
Except be connected on management centre computer for reflect man-machine circuit 4 from equipment working condition to staff except, be also connected with described protective circuit 5, it comprises the RS485 circuit connecting other communication apparatus and the control circuit controlling main circuit switch.Externally can send notice or alarm, directly cut off circuit when the situation is critical to ensure the safety of integrated circuit.
Claims (3)
1. a route protection measure and control device, comprise signal acquisition module (1) and main control module (3), it is characterized in that: described signal acquisition module (1) is connected with main control module (3) input by signal amplification circuit (2), main control module (3) output connects man-machine circuit (4) and protective circuit (5);
Described main control module (3) comprises three signal deteching circuits (31) be connected in parallel between main control module (3) input and signal selecting circuit (32), signal selecting circuit (32) connects output circuit (33), and output circuit (33) connects main control module (3) output.
2. route protection measure and control device according to claim 1, is characterized in that: described signal acquisition module (1) comprises the voltage sampling circuit (11), current sampling circuit (12), break detection circuit (13), humidity temperature pickup (14) and the switching value output module (15) that are arranged in parallel.
3. route protection measure and control device according to claim 2, is characterized in that: described protective circuit (5) comprises the RS485 circuit of connecting communication equipment and controls the control circuit of main circuit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520795141.7U CN205039533U (en) | 2015-10-15 | 2015-10-15 | Line protection measurement and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520795141.7U CN205039533U (en) | 2015-10-15 | 2015-10-15 | Line protection measurement and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205039533U true CN205039533U (en) | 2016-02-17 |
Family
ID=55298404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520795141.7U Expired - Fee Related CN205039533U (en) | 2015-10-15 | 2015-10-15 | Line protection measurement and control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205039533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064566A (en) * | 2017-06-12 | 2017-08-18 | 上海华岭集成电路技术股份有限公司 | A kind of method for protecting integrated circuit testing connecting line |
-
2015
- 2015-10-15 CN CN201520795141.7U patent/CN205039533U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107064566A (en) * | 2017-06-12 | 2017-08-18 | 上海华岭集成电路技术股份有限公司 | A kind of method for protecting integrated circuit testing connecting line |
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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: 20160217 Termination date: 20191015 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |