CN201518176U - Field bus communication circuit breaker simulation signal device - Google Patents
Field bus communication circuit breaker simulation signal device Download PDFInfo
- Publication number
- CN201518176U CN201518176U CN2009201748616U CN200920174861U CN201518176U CN 201518176 U CN201518176 U CN 201518176U CN 2009201748616 U CN2009201748616 U CN 2009201748616U CN 200920174861 U CN200920174861 U CN 200920174861U CN 201518176 U CN201518176 U CN 201518176U
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- signal device
- simulation signal
- transformer
- field bus
- circuit breaker
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Abstract
Disclosed is a field bus communication circuit breaker simulation signal device. A simulation signal output end of the simulation signal device is connected with a current mutual inductor on the secondary side of one circuit breaker in a to-be-simulated circuit, the simulation signal device comprises a transformer, a digital potentiometer, a first 485 communication interface for setting current and a second 485 communication interface for outputting display, a commercial power supply is connected with the transformer, the transformer is connected with the digital potentiometer, and the digital potentiometer is connected with the simulation signal output end. The field bus communication circuit breaker simulation signal device greatly reduces volume, is easy to realize electrical connection, has excellent mobility, and reduces cost.
Description
Technical field
The utility model relates to a kind of isolating switch analog simulation demonstration system, especially simulating signal device.
Background technology
Electronic type molded case circuit breaker has functions such as three section protection, ground protection, and breaker of plastic casing adopts the authigenic power supply power supply.When normal operation of circuit breaker, test and demonstrate to pass to big electric current and could realize normal running to functions such as three section protections.Generally, test and the function presentation to isolating switch all adopts the three section protection operator's console to operate.But can be bulky for the operator's console of low-voltage, high-current (more than the 10000A), be electrically connected also difficult realization, more do not have mobility, cost is also very high.
Summary of the invention
For overcome existing isolating switch analog simulation demonstration system bulky, be electrically connected and be difficult for realizing, do not have mobility, deficiency that cost is high, the field bus communication breaker simulating signal device that the utility model provides a kind of and reduces volume greatly, is electrically connected easy realization, movability is good, reduce cost is in order to realize analog simulation demonstration system.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of field bus communication breaker simulating signal device, the analog signal output of a simulating signal device is connected with the current transformer of an isolating switch secondary side in treating mimic channel, described simulating signal device comprises transformer, digital regulation resistance, in order to carry out the one 485 communication interface that electric current is provided with and the 2 485 communication interface that shows in order to output, civil power is connected with transformer, described transformer is connected with digital regulation resistance, and described digital regulation resistance is connected with described analog signal output.
Technical conceive of the present utility model is: at the defective of prior art; carry out the problem that demonstrate the exhibition booth at electronic type plastics shell type isolating switch product and field bus technique; the spy works out demonstration and the experiment that a cover can solve functions such as isolating switch three section protection; and adopt civil power to power; be connected the analog simulation demonstration system of field bus communication breaker that can conveniently move by the simulating signal device with the current transformer of an isolating switch secondary side in treating mimic channel.
The beneficial effects of the utility model mainly show: reduce volume greatly, be electrically connected easy realization, movability is good, reduce cost.
Description of drawings
Fig. 1 is the synoptic diagram of operator's console.
Fig. 2 is the synoptic diagram of simulating signal device.
Fig. 3 is the synoptic diagram of display part.
Fig. 4 is overall communication and exhibition booth principle schematic.
Fig. 5 is a fieldbus exhibition booth electrical schematic.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1～Fig. 6, a kind of field bus communication breaker simulating signal device, the analog signal output of a simulating signal device is connected with the current transformer of an isolating switch secondary side in treating mimic channel, described simulating signal device comprises transformer, digital regulation resistance, in order to carry out the one 485 communication interface that electric current is provided with and the 2 485 communication interface that shows in order to output, civil power is connected with transformer, described transformer is connected with digital regulation resistance, and described digital regulation resistance is connected with described analog signal output.
The analog simulation demonstration system of field bus communication breaker of present embodiment, also comprise operator's console, display part and fieldbus, described operator's console comprises in order to donating bond dish input sets the keyboard input interface of each circuit breaker current and breaker open operation delay time and in order to realize the 3 485 communication interface of communication with each simulating signal device; Described display part comprises electric current display screen, time display screen and is used to receive the 4 485 communication interface of the data of simulating signal device; Described the 3 485 communication interface is connected with fieldbus, and the one 485 communication interface of each simulating signal device is connected with fieldbus; Described the 2 485 communication interface is connected with the 4 485 communication interface by 485 connections.
Described keyboard input interface is the SP2 interface, and described SP2 interface is connected with the SP2 keyboard.Described operator's console also comprises the display screen that is used to show.Described fieldbus connects the total current table.
The fieldbus of present embodiment is 485 buses; As shown in Figure 1, console function is: each circuit breaker current and breaker open operation delay time are set in the input of SP2 keyboard.Detect each isolating switch running status (as: divide, close a floodgate running current, conduction time etc.), by the communication of 485 communication interfaces realization with other modules.
As shown in Figure 2, simulating signal device function is for producing required simulating signal.The numerical value of simulating signal is corresponding one by one with the breaker controller sample voltage value.This simulating signal inputs to the breaker controller thief hatch, and in magnitude of voltage and the actual breaker electrifying process, it is identical that current transformer produces magnitude of voltage, and corresponding one by one with actual current.Needed analog signal values is provided by operator's console, realizes that by 1 485 communication data connect.Simultaneously, another one 485 communications are connected with the display part, mainly transmit parameters such as electrical current.
As shown in Figure 3, the display part function is for showing electrical current value and conduction time.The electric current display precision is 1A, and error is 1%.The time showing precision is 0.001S, and potential difference is 1%.
As Fig. 4, shown in Figure 5, overall communication is that 2 grades of isolating switchs are formed.Fig. 5 is a fieldbus exhibition booth electrical schematic diagram, and Fig. 4 is each module communication schematic diagram.As can be seen from Figure 4, demo system is core with the operator's console, links to each other with other modules by 485 mechanicss of communication, realizes control in real time;
With the simulating signal device is the major control operating part, and when realizing that controller is simulated actual isolating switch operation, the actual current input is through the current transformer sampling and obtain the simulation process of sampled voltage by the sampling resistor circuit.Through the magnitude of voltage that the simulating signal device produces be with actual breaker electrifying process in, it is identical that current transformer produces magnitude of voltage, and corresponding one by one with actual current value.
The design is designed by taking into full account fieldbus exhibition booth volume and function presentation.Can be used as the classic applications of present technique.The first order is two 400 breaker controllers, wherein a subordinate is with three 100A isolating switchs, another is not with, three of subordinate controllers show the electric current of the analog quantity correspondence of input during work on LED, simultaneously by the controller of 485 inner Network Transmission, draw total results of weak current after as calculated and show to higher level 400A.Electrical current shows that by electric current LED make-and-break time shows by time LED.Master station is made of keypad and LED display, can the analog current size of subordinate's controller input be provided with, and has good man computer interface.Each controller links to each other with upper PC by a communication module, and host computer can be provided with parameter to isolating switch, control break-make and the real-time current state that shows.
Present embodiment has very strong practicality, can expand as required at any time control isolating switch quantity and cascade system.The relative module that increases and decreases with the display part of simulating signal device during expansion, program and hardware are all without any need for change, and host computer and operator's console only need according to circumstances increase and decrease the module controls program just can be realized fully.
In addition, the checkout procedure when this analog simulation demonstration system of field bus communication breaker technology also can be applicable to isolating switch production, easy to operate like this practicality, safety, reliable.And can save the cost of checkout equipment greatly.
Claims (1)
1. field bus communication breaker simulating signal device, it is characterized in that: the analog signal output of a simulating signal device is connected with the current transformer of an isolating switch secondary side in treating mimic channel, described simulating signal device comprises transformer, digital regulation resistance, in order to carry out the one 485 communication interface that electric current is provided with and the 2 485 communication interface that shows in order to output, civil power is connected with transformer, described transformer is connected with digital regulation resistance, and described digital regulation resistance is connected with described analog signal output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201748616U CN201518176U (en) | 2009-09-03 | 2009-09-03 | Field bus communication circuit breaker simulation signal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201748616U CN201518176U (en) | 2009-09-03 | 2009-09-03 | Field bus communication circuit breaker simulation signal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201518176U true CN201518176U (en) | 2010-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201748616U Expired - Fee Related CN201518176U (en) | 2009-09-03 | 2009-09-03 | Field bus communication circuit breaker simulation signal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201518176U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557841A (en) * | 2018-09-10 | 2019-04-02 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Self-check system based on wireless device |
-
2009
- 2009-09-03 CN CN2009201748616U patent/CN201518176U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557841A (en) * | 2018-09-10 | 2019-04-02 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Self-check system based on wireless device |
| CN109557841B (en) * | 2018-09-10 | 2020-09-25 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Self-detection system based on wireless equipment |
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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: 20100630 Termination date: 20140903 |
|
| EXPY | Termination of patent right or utility model |