CN202631648U - Diagnostic device for electronic instrument transformer circuit in intelligent transformer station - Google Patents
Diagnostic device for electronic instrument transformer circuit in intelligent transformer station Download PDFInfo
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- CN202631648U CN202631648U CN 201220126912 CN201220126912U CN202631648U CN 202631648 U CN202631648 U CN 202631648U CN 201220126912 CN201220126912 CN 201220126912 CN 201220126912 U CN201220126912 U CN 201220126912U CN 202631648 U CN202631648 U CN 202631648U
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Abstract
The utility model discloses a diagnostic device for an electronic instrument transformer circuit in an intelligent transformer station, and belongs to the field of measurement. The diagnostic device for the electronic instrument transformer circuit comprises an analog input channel, a filtering module, an A/D module, a switching value input channel, a switching value module, an output module, a CPU module, a display card, and a display. The analog input channel, the filtering module, and the A/D module are connected in sequence. The switching value input channel is connected with the switching value module. The switching value module is connected with the output module. The A/D module, the switching value module, the CPU module, and the display card are connected by an AT bus. The diagnostic device can monitor/record secondary circuits of a non-conventional instrument transformer and the electronic instrument transformer in real time, and fully satisfy requirements of real-time on-site monitoring and recording. The diagnostic device can be widely used in the field of diagnosis/monitoring of secondary circuits of non-conventional instrument transformers.
Description
Technical field
The utility model belongs to field of measurement, relates in particular to a kind of device that the electronic mutual inductor loop is diagnosed of being used for.
Background technology
Present digital transformer substation, intelligent transformer station are progressively adopted and are promoted.
In digital transformer substation, intelligent transformer station, adopted various unconventional mutual inductors (such as electronic mutual inductors such as photo-electricity mutual-inductor, small-signal mutual inductors) in large quantities, the output signal of this type of mutual inductor is many with digital quantity usually.
State to the unconventional voltage transformer (VT) that is used for digital transformer substation, intelligent transformer station and unconventional current transformer is judged, mainly understands or judge its running status through the examining report that dispatches from the factory with periodic the detection now.
Because the sense cycle of mutual inductor is long usually, the abnormal running state that causes occurring during this period can't in time be found.Only when detecting, just in time take place just can come to light.Bring certain hidden danger so not only for circuit electric energy metrical, protection and security etc., but also taken great amount of manpower; Moreover, owing to adopted live line measurement, also exist certain hidden danger for equipment safety operation during test.
For the variety of issue and the defective of this type of unconventional mutual inductor on site operation and test existence, still not having ready-made experience and rules can be with reference to reference.
In the on-the-spot operation/testing; Be badly in need of a kind of instrument or device that can be installed in the scene; Secondary circuit to unconventional voltage transformer (VT) and unconventional current transformer carries out monitoring record in real time, with the stable operation of substation safety that guarantees to employ new technology.
The utility model content
The utility model technical matters to be solved provides a kind of intelligent transformer substation electronic transducer loop diagnostics device; It adopts and has now intelligent substation compatible fully data acquisition, record and the way of output; In real time the secondary circuit of unconventional mutual inductor, electronic mutual inductor is monitored/record, can satisfy the needs of on-site real-time monitoring, record fully.
The technical scheme of the utility model is: a kind of intelligent transformer substation electronic transducer loop diagnostics device is provided; It is characterized in that: described electronic mutual inductor loop diagnostics device is made up of analog input channel, filtration module, A/D module, switching value input channel, switching value module, output module, CPU module, display card, display; Wherein, Described analog input channel, filtration module and A/D module are connected successively; Described switching value input channel is connected with the switching value module, and described switching value module is connected with output module; Described A/D module, switching value module, CPU module are connected through AT-bus with display card.
Its described analog input channel is connected with voltage circuit or current return respectively through connection terminal, and described switching value input channel is connected with switching value through connection terminal, and described output module is connected with the warning output contact respectively through connection terminal.
Its described AT-bus also is connected with the 1.44MB floppy disk with printer.
Concrete, described analog input channel comprises the first isolating transformer B1 and the second isolating transformer B2.
Described switching value input channel comprises photoelectric isolating circuit G1.
Described output module comprises photoelectric isolating circuit G2 and output relay J1.
Described filtration module is a filtering circuit, and described A/D module is the A/D circuit, and described CPU module is a single chip circuit.
Compare with prior art, the utility model has the advantages that:
This device can monitor simultaneously, the various analog quantitys and the switching value of recorded electronic formula mutual inductor, have storage, demonstration and printing function, also can carry out data output, can satisfy the needs of on-site real-time monitoring, record fully;
2. adopt the ATR bus structure, technology maturation is easy to supportingly, and data rate is high;
3. with demonstration, the output data format compatible of existing intelligent substation, data transmission is accessible.
Description of drawings
Fig. 1 is that the system of the utility model constitutes synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
Among Fig. 1; This electronic mutual inductor loop diagnostics device is made up of analog input channel, filtration module, A/D module, switching value input channel, switching value module, output module, CPU module, display card, display; Wherein, Described analog input channel, filtration module and A/D module are connected successively, and described switching value input channel is connected with the switching value module, and described switching value module is connected with output module; Described A/D module, switching value module, CPU module are connected through AT-bus with display card.
Its described analog input channel is connected with voltage circuit or current return respectively through connection terminal, and described switching value input channel is connected with switching value through connection terminal, and described output module is connected with the warning output contact respectively through connection terminal.
Its described AT-bus also is connected with the 1.44MB floppy disk with printer.
Concrete, described analog input channel comprises first, second isolating transformer B1 and B2.
Described switching value input channel comprises photoelectric isolating circuit G1.
Described output module comprises photoelectric isolating circuit G2 and output relay J1.
Described filtration module is a filtering circuit, and described A/D module is the A/D circuit, and described CPU module is a single chip circuit.
The data that this device records at the scene can be used for the sampling analysis to the field working conditions of unconventional electronic mutual inductor; Can not be how when becoming research and improving the on-the-spot antijamming capability of unconventional electronic mutual inductor the firsthand information; Also can carry out verification to the electronic current mutual inductor loop; Avoided each at present protection verification must carry out the inconvenience (line side need have a power failure) of orientation test, the reliability and the security that help improving mains supply.For electric company brings economic benefit and social benefit.
Because above-mentioned each module, circuit and AT-bus structure are prior art; There are various commercially available prod optional; Those skilled in the art can obtain relevant information with reference to the supporting data of the Related product of each manufacturer, so its concrete circuit and corresponding wiring are no longer narrated at this.
The utility model can be widely used in the diagnose/monitor field of unconventional transformer secondary circuit.
Claims (7)
1. intelligent transformer substation electronic transducer loop diagnostics device is characterized in that:
Described electronic mutual inductor loop diagnostics device is made up of analog input channel, filtration module, A/D module, switching value input channel, switching value module, output module, CPU module, display card, display; Wherein, Described analog input channel, filtration module and A/D module are connected successively; Described switching value input channel is connected with the switching value module, and described switching value module is connected with output module; Described A/D module, switching value module, CPU module are connected through AT-bus with display card.
2. according to the described intelligent transformer substation electronic transducer loop diagnostics device of claim 1; It is characterized in that described analog input channel is connected with voltage circuit or current return respectively through connection terminal; Described switching value input channel is connected with switching value through connection terminal, and described output module is connected with the warning output contact respectively through connection terminal.
3. according to the described intelligent transformer substation electronic transducer loop diagnostics device of claim 1, it is characterized in that described AT-bus also is connected with the 1.44MB floppy disk with printer.
4. according to the described intelligent transformer substation electronic transducer loop diagnostics device of claim 1, it is characterized in that described analog input channel comprises the first isolating transformer B1 and the second isolating transformer B2.
5. according to the described intelligent transformer substation electronic transducer loop diagnostics device of claim 1, it is characterized in that described switching value input channel comprises photoelectric isolating circuit G1.
6. according to the described intelligent transformer substation electronic transducer loop diagnostics device of claim 1, it is characterized in that described output module comprises photoelectric isolating circuit G2 and output relay J1.
7. according to the described intelligent transformer substation electronic transducer loop diagnostics device of claim 1, it is characterized in that described filtration module is a filtering circuit, described A/D module is the A/D circuit, and described CPU module is a single chip circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220126912 CN202631648U (en) | 2012-03-29 | 2012-03-29 | Diagnostic device for electronic instrument transformer circuit in intelligent transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220126912 CN202631648U (en) | 2012-03-29 | 2012-03-29 | Diagnostic device for electronic instrument transformer circuit in intelligent transformer station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202631648U true CN202631648U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220126912 Expired - Lifetime CN202631648U (en) | 2012-03-29 | 2012-03-29 | Diagnostic device for electronic instrument transformer circuit in intelligent transformer station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202631648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103268108A (en) * | 2013-05-17 | 2013-08-28 | 郑州华力信息技术有限公司 | Intelligent transformer load management system |
-
2012
- 2012-03-29 CN CN 201220126912 patent/CN202631648U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103268108A (en) * | 2013-05-17 | 2013-08-28 | 郑州华力信息技术有限公司 | Intelligent transformer load management system |
| CN103268108B (en) * | 2013-05-17 | 2016-08-03 | 国家电网公司 | Intelligent load management system for transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |