CN205265249U - A tractor serves several purposes middle and low voltage overload protection device - Google Patents
A tractor serves several purposes middle and low voltage overload protection device Download PDFInfo
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- CN205265249U CN205265249U CN201521079681.1U CN201521079681U CN205265249U CN 205265249 U CN205265249 U CN 205265249U CN 201521079681 U CN201521079681 U CN 201521079681U CN 205265249 U CN205265249 U CN 205265249U
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- 230000003993 interaction Effects 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 14
- 230000006854 communication Effects 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 12
- 239000013078 crystal Substances 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 14
- 230000003750 conditioning effect Effects 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The utility model discloses a tractor serves several purposes middle and low voltage overload protection device, including analog quantity collection module, microprocessor module, communication module, switching value processing module and man -machine interaction module, the microprocessor module includes microprocessor, reset circuit and crystal oscillator circuit, microprocessor connects ADC, switching power supply, reset circuit, crystal oscillator circuit, memory circuit, communication module, analog quantity collection module, man -machine interaction module and switching value processing module respectively. The utility model discloses a tractor serves several purposes middle and low voltage overload protection device through simple setting, need not to change hardware and software, makes the protection that can be used to circuit, house change, motor, condenser based on a device of this platform.
Description
Technical field
The utility model relates to a kind of protective device, specifically a kind of a tractor serves several purposes mesolow protective relaying device.
Background technology
Relay protection device is as the important part of power system; experience development with rapid changepl. never-ending changes and improvements; along with the significantly raising of the principle of microcomputer type relay protection equipment, performance, reliability; not only better meet the demand of power system user security and reliable aspect; and for test and the on-site maintenance of protection have brought larger convenience, so in power system, reach application widely.
At present, middle low-pressure system relay protection device specification and kind are more, cause user's standby redundancy to increase thereupon, and operation maintenance personnel increase, and have wasted greatly manpower and materials.
Utility model content
The purpose of this utility model is to provide a kind of a tractor serves several purposes mesolow protective relaying device, to solve the problem proposing in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of a tractor serves several purposes mesolow protective relaying device, comprises analogue collection module, microprocessor module, communication module, switching value processing module and human-computer interaction module, and microprocessor module comprises microprocessor, reset circuit and crystal oscillating circuit; Microprocessor connects respectively ADC, Switching Power Supply, reset circuit, crystal oscillating circuit, memory circuit, communication module, analogue collection module, human-computer interaction module and switching value processing module; Described microprocessor adopts MB9BF618S.
As further program of the utility model: described analogue collection module comprises voltage acquisition part and current acquisition part, voltage acquisition part is that voltage input signal is connected to ADC by voltage transformer and signal conditioning circuit successively, and current acquisition part is that current input signal is connected to ADC by current transformer and signal conditioning circuit successively.
As further program of the utility model: described switching value processing module adopts two photoelectric isolation modules respectively by switching value input, switching value output and microprocessor isolation.
As further program of the utility model: adopt RS485 bus to be connected between described microprocessor and communication module.
As further scheme of the utility model: adopt RS232 bus to be connected between described microprocessor and human-computer interaction module.
Compared with prior art; the beneficial effects of the utility model are: the utility model a tractor serves several purposes mesolow protective relaying device; by simple setting, without change hardware and software, make to can be used for based on a table apparatus of this platform the protection of circuit, unit transformer, motor, capacitor.
Brief description of the drawings
Fig. 1 is the structural representation of a tractor serves several purposes mesolow protective relaying device.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment. Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of a tractor serves several purposes mesolow protective relaying device, comprises analogue collection module, microprocessor module, communication module, switching value processing module and human-computer interaction module, and microprocessor module comprises microprocessor, reset circuit and crystal oscillating circuit; Microprocessor connects respectively ADC, Switching Power Supply, reset circuit, crystal oscillating circuit, memory circuit, communication module, analogue collection module, human-computer interaction module and switching value processing module; Described microprocessor adopts MB9BF618S; Described analogue collection module comprises voltage acquisition part and current acquisition part, voltage acquisition part is that voltage input signal is connected to ADC by voltage transformer and signal conditioning circuit successively, and current acquisition part is that current input signal is connected to ADC by current transformer and signal conditioning circuit successively; Described switching value processing module adopts two photoelectric isolation modules respectively by switching value input, switching value output and microprocessor isolation; Between described microprocessor and communication module, adopt RS485 bus to be connected; Between described microprocessor and human-computer interaction module, adopt RS232 bus to be connected.
Operation principle of the present utility model is: described microprocessor is 32 bit processor MB9BF618S for what do not go out chip (SOC) technological development based on bus; as the core of this hardware system platform, the functions such as the collection of data acquisition and computing, the judgement of protection logic, communication process, man-machine interaction and driving, various parameter preservation, action report and failure wave-recording record.
Described ADC is 16 analog-digital converter AD7606, is connected with voltage transformer (TV) summation current transformer (TA), the signal conditioning circuit of front end, has formed analogue collection module. Carry out data reduction processing by delivering to microprocessor after strong external analog amount electric signal isolation, conversion, processing.
The input that described switching value processing module comprises switching value is processed with output, switching value input is for gathering the control signal of the primary equipments such as breaker, switching value output, for the execution of CPU control command, to drive the action of various relays and to return, realizes warning or tripping operation etc. and controls function.
Described human-machine interface module includes keystroke handling and liquid crystal display, the repertoire of finishing man-machine interaction.
Described communication module is RS-485 bus, Ethernet interface, for carrying out data interaction with all kinds of monitoring systems, realizes " four is distant " function.
Described Switching Power Supply is provide ± 24V of whole system, ± 5V, tri-kinds of operating voltages of ± 3.3V.
The utility model a tractor serves several purposes mesolow protective relaying device, by simple setting, without change hardware and software, makes to can be used for based on a table apparatus of this platform the protection of circuit, unit transformer, motor, capacitor.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form. Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to include in the utility model. Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this description is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (5)
1. an a tractor serves several purposes mesolow protective relaying device, comprise analogue collection module, microprocessor module, communication module, switching value processing module and human-computer interaction module, it is characterized in that, microprocessor module comprises microprocessor, reset circuit and crystal oscillating circuit; Microprocessor connects respectively ADC, Switching Power Supply, reset circuit, crystal oscillating circuit, memory circuit, communication module, analogue collection module, human-computer interaction module and switching value processing module; Described microprocessor adopts MB9BF618S.
2. a tractor serves several purposes mesolow protective relaying device according to claim 1; it is characterized in that; described analogue collection module comprises voltage acquisition part and current acquisition part; voltage acquisition part is that voltage input signal is connected to ADC by voltage transformer and signal conditioning circuit successively, and current acquisition part is that current input signal is connected to ADC by current transformer and signal conditioning circuit successively.
3. a tractor serves several purposes mesolow protective relaying device according to claim 1, is characterized in that, described switching value processing module adopts two photoelectric isolation modules respectively by switching value input, switching value output and microprocessor isolation.
4. a tractor serves several purposes mesolow protective relaying device according to claim 1, is characterized in that, between described microprocessor and communication module, adopts RS485 bus to be connected.
5. a tractor serves several purposes mesolow protective relaying device according to claim 1, is characterized in that, between described microprocessor and human-computer interaction module, adopts RS232 bus to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521079681.1U CN205265249U (en) | 2015-12-22 | 2015-12-22 | A tractor serves several purposes middle and low voltage overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521079681.1U CN205265249U (en) | 2015-12-22 | 2015-12-22 | A tractor serves several purposes middle and low voltage overload protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205265249U true CN205265249U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521079681.1U Active CN205265249U (en) | 2015-12-22 | 2015-12-22 | A tractor serves several purposes middle and low voltage overload protection device |
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| Country | Link |
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| CN (1) | CN205265249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071482A (en) * | 2019-05-27 | 2019-07-30 | 桂林航天工业学院 | A kind of engineering in Intelligent electrical machinery protection system |
-
2015
- 2015-12-22 CN CN201521079681.1U patent/CN205265249U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071482A (en) * | 2019-05-27 | 2019-07-30 | 桂林航天工业学院 | A kind of engineering in Intelligent electrical machinery protection system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |