CN105606939A - Portable microcomputer relay protection tester - Google Patents
Portable microcomputer relay protection tester Download PDFInfo
- Publication number
- CN105606939A CN105606939A CN201610160938.9A CN201610160938A CN105606939A CN 105606939 A CN105606939 A CN 105606939A CN 201610160938 A CN201610160938 A CN 201610160938A CN 105606939 A CN105606939 A CN 105606939A
- Authority
- CN
- China
- Prior art keywords
- circuit
- protection tester
- portable microcomputer
- microcomputer relay
- pass filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a portable microcomputer relay protection tester. The portable microcomputer relay protection tester comprises a housing and an internal circuit, and is characterized in that the housing includes a display screen, an enter key, direction keys, a return key, programming indicating lamps, a power key and a power indicator; the display screen, the enter key, the direction keys, the return key, the programming indicating lamps, the power key and the power indicator are arranged on a front panel; the top end of the housing is provided with a handle; the bottom end of the housing is provided with a power interface and a USB interface; a hook and a band are arranged on the back of the housing; and two ends of the band are provided with a respective bonding part. The portable microcomputer relay protection tester is simple in structure and is provided with the handle, thus being convenient to carry; the back of the portable microcomputer relay protection tester is provided with the band, thus preventing falling; keys are provided, so that various operations can be carried out; and as the display screen is a touch display screen, touch control is integrated with key control so that the portable microcomputer relay protection tester is suitable for various working scenes.
Description
Technical field
The present invention relates to a kind of portable microcomputer relay-protection tester.
Background technology
The development of power system and safe and stable operation bring huge power benefit to national economy and social development; once there is nature or artificial fault in power system; can not be controlled in time; will make system loss of stability; cause main equipment damage, electric network from collapsing, cause large-area power-cuts, bring serious consequence to system and society; relay protection is the important means that ensures power system safety and stability operation, and the Microcomputer Protection of one of its part has played important function. Relay protection microcomputer type testing arrangement is the important testing tool of one that ensures power system security reliability service. Along with the develop rapidly of computer technology, microelectric technique, Power Electronic Technique, it is the inexorable trend of technological progress that application latest technological achievements are constantly released novel high-performance microcomputer protective relay testing arrangement. Test device for relay protection is the important testing tool of one that ensures power system security reliability service. Along with the continuous expansion of modern power systems scale, what the reliability to Operation of Electric Systems and management, high efficiency required improves constantly, and it is more frequent and complicated that relay protection personnel's test job becomes.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art; a kind of portable microcomputer relay-protection tester is provided; this tester is simple in structure; being provided with handle is easy to carry; back is provided with bandage, is convenient to be fixed in use on hand, prevents from dropping; be provided with button, can carry out multiple operation.
The object of the invention is to be achieved through the following technical solutions: portable microcomputer relay-protection tester, it comprises casing and internal circuit, it is characterized in that: described casing comprises the display screen, acknowledgement key, directionkeys, return key, the programming indicator lamp that are arranged on front panel, power key and power supply indicator, the top of casing is provided with handle, and the bottom of casing is provided with power interface and USB interface; The back side of casing is provided with hook ring and bandage, and the two ends of bandage are provided with bonding part;
Described internal circuit comprises microprocessor, decoder, switching value, drive circuit, optical coupling isolation circuit and voltage power amplifying circuit, described microprocessor connects respectively PC, decoder, switching value and D/A converting circuit, switching value connects decoder, decoder also connects drive circuit successively, optical coupling isolation circuit and D/A converting circuit, D/A converting circuit also connects respectively the first low-pass filter circuit and the second low-pass filter circuit, the first low-pass filter circuit also connects voltage power amplifying circuit, described the second low-pass filter circuit also connects current power amplifying circuit, difference connecting valve power circuit and holding circuit between described voltage power amplifying circuit and current power amplifying circuit.
Described display screen is touching display screen.
Described bandage comprises elastic part and non-resilient part.
Described bonding part is devil's subsides.
Described microprocessor model is TMS320C203, described decoder model is ispLSI1016, described drive circuit adopts chip 74HC244, and described D/A converting circuit adopts high-performance analog-digital chip AD669, and described optical coupling isolation circuit adopts TLP521-1 photoelectrical coupler.
Described D/A converting circuit adopts 7 road D/A conversions, and wherein 4 tunnel conversions connect voltage power amplifying circuit by the first low-pass filter circuit, and 3 tunnel conversions connect current power amplifying circuit by the second low-pass filter circuit.
The invention has the beneficial effects as follows: the invention provides a kind of portable microcomputer relay-protection tester; this tester is simple in structure; be provided with handle and be easy to carry, back is provided with bandage, is convenient to be fixed in use on hand; prevent from dropping; be provided with button, can carry out multiple operation, display screen adopts touch display screen; touch-control is combined with keying, is applicable to multiple operative scenario.
Brief description of the drawings
Fig. 1 is tester structural representation;
Fig. 2 is tester top schematic diagram;
Fig. 3 is tester schematic rear view;
Fig. 4 is tester internal circuit schematic diagram;
In figure, 1-casing, 2-display screen, 3-acknowledgement key, 4-directionkeys, 5-power supply indicator, 6-power key, 7-return key, the 8-indicator lamp of programming, 9-USB interface, 10-power interface, 11-handle, 12-hook ring, 13-bandage, 14-bonding part.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
If Fig. 1 is to as shown in Fig. 3, portable microcomputer relay-protection tester, it comprises casing 1 and internal circuit, it is characterized in that: described casing 1 comprises the display screen 2, acknowledgement key 3, directionkeys 4, return key 7, the programming indicator lamp 8 that are arranged on front panel, power key 6 and power supply indicator 5, the top of casing 1 is provided with handle 11, and the bottom of casing 1 is provided with power interface 10 and USB interface 9; The back side of casing 1 is provided with hook ring 12 and bandage 13, and the two ends of bandage 13 are provided with bonding part 14.
As shown in Figure 4, described internal circuit comprises microprocessor, decoder, switching value, drive circuit, optical coupling isolation circuit and voltage power amplifying circuit, described microprocessor connects respectively PC, decoder, switching value and D/A converting circuit, switching value connects decoder, decoder also connects drive circuit successively, optical coupling isolation circuit and D/A converting circuit, D/A converting circuit also connects respectively the first low-pass filter circuit and the second low-pass filter circuit, the first low-pass filter circuit also connects voltage power amplifying circuit, described the second low-pass filter circuit also connects current power amplifying circuit, difference connecting valve power circuit and holding circuit between described voltage power amplifying circuit and current power amplifying circuit.
Described display screen 2 is touching display screen.
Described bandage 13 comprises elastic part and non-resilient part.
Described bonding part 14 is devil's subsides.
Described microprocessor model is TMS320C203, described decoder model is ispLSI1016, described drive circuit adopts chip 74HC244, and described D/A converting circuit adopts high-performance analog-digital chip AD669, and described optical coupling isolation circuit adopts TLP521-1 photoelectrical coupler.
Described D/A converting circuit adopts 7 road D/A conversions, and wherein 4 tunnel conversions connect voltage power amplifying circuit by the first low-pass filter circuit, and 3 tunnel conversions connect current power amplifying circuit by the second low-pass filter circuit.
Tester of the present invention is simple in structure, is provided with handle and is easy to carry, and back is provided with bandage, is convenient to be fixed in use on hand, prevent from dropping, be provided with button, can carry out multiple operation, display screen adopts touch display screen, and touch-control is combined with keying, is applicable to multiple operative scenario.
Claims (6)
1. portable microcomputer relay-protection tester, it comprises casing (1) and internal circuit, it is characterized in that: described casing (1) comprises the display screen (2), acknowledgement key (3), directionkeys (4), return key (7), the programming indicator lamp (8) that are arranged on front panel, power key (6) and power supply indicator (5), the top of casing (1) is provided with handle (11), and the bottom of casing (1) is provided with power interface (10) and USB interface (9); The back side of casing (1) is provided with hook ring (12) and bandage (13), and the two ends of bandage (13) are provided with bonding part (14);
Described internal circuit comprises microprocessor, decoder, switching value, drive circuit, optical coupling isolation circuit and voltage power amplifying circuit, described microprocessor connects respectively PC, decoder, switching value and D/A converting circuit, switching value connects decoder, decoder also connects drive circuit successively, optical coupling isolation circuit and D/A converting circuit, D/A converting circuit also connects respectively the first low-pass filter circuit and the second low-pass filter circuit, the first low-pass filter circuit also connects voltage power amplifying circuit, described the second low-pass filter circuit also connects current power amplifying circuit, difference connecting valve power circuit and holding circuit between described voltage power amplifying circuit and current power amplifying circuit.
2. portable microcomputer relay-protection tester according to claim 1, is characterized in that: described display screen (2) is touching display screen.
3. portable microcomputer relay-protection tester according to claim 1, is characterized in that: described bandage (13) comprises elastic part and non-resilient part.
4. portable microcomputer relay-protection tester according to claim 1, is characterized in that: described bonding part (14) is devil's subsides.
5. portable microcomputer relay-protection tester according to claim 1; it is characterized in that: described microprocessor model is TMS320C203; described decoder model is ispLSI1016; described drive circuit adopts chip 74HC244; described D/A converting circuit adopts high-performance analog-digital chip AD669, and described optical coupling isolation circuit adopts TLP521-1 photoelectrical coupler.
6. portable microcomputer relay-protection tester according to claim 1; it is characterized in that: described D/A converting circuit adopts 7 road D/A conversions; wherein 4 tunnel conversions connect voltage power amplifying circuit by the first low-pass filter circuit, and 3 tunnel conversions connect current power amplifying circuit by the second low-pass filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160938.9A CN105606939A (en) | 2016-03-21 | 2016-03-21 | Portable microcomputer relay protection tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160938.9A CN105606939A (en) | 2016-03-21 | 2016-03-21 | Portable microcomputer relay protection tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105606939A true CN105606939A (en) | 2016-05-25 |
Family
ID=55987026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610160938.9A Pending CN105606939A (en) | 2016-03-21 | 2016-03-21 | Portable microcomputer relay protection tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105606939A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100584A (en) * | 2017-06-21 | 2018-12-28 | 国网江苏省电力公司常州供电公司 | The test device for relay protection of height output DC voltage |
| US20230236243A1 (en) * | 2022-01-24 | 2023-07-27 | Universal Scientific Industrial (Shanghai) Co., Ltd. | Electrical property testing device of evaluation board |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204086435U (en) * | 2014-10-29 | 2015-01-07 | 武汉国试电气设备有限公司 | A kind of microcomputer relay protection tester |
| CN204241580U (en) * | 2014-05-28 | 2015-04-01 | 国网山西省电力公司电力科学研究院 | Relay-protection tester |
| CN104914335A (en) * | 2015-06-01 | 2015-09-16 | 苏州市华安普电力工程有限公司 | Unidirectional relay protection tester device |
| CN204832372U (en) * | 2015-06-09 | 2015-12-02 | 苏州市华安普电力工程有限公司 | Computer relay protection tester |
| CN205539258U (en) * | 2016-03-21 | 2016-08-31 | 成都天进仪器有限公司 | Portable computer relay protection tester |
-
2016
- 2016-03-21 CN CN201610160938.9A patent/CN105606939A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204241580U (en) * | 2014-05-28 | 2015-04-01 | 国网山西省电力公司电力科学研究院 | Relay-protection tester |
| CN204086435U (en) * | 2014-10-29 | 2015-01-07 | 武汉国试电气设备有限公司 | A kind of microcomputer relay protection tester |
| CN104914335A (en) * | 2015-06-01 | 2015-09-16 | 苏州市华安普电力工程有限公司 | Unidirectional relay protection tester device |
| CN204832372U (en) * | 2015-06-09 | 2015-12-02 | 苏州市华安普电力工程有限公司 | Computer relay protection tester |
| CN205539258U (en) * | 2016-03-21 | 2016-08-31 | 成都天进仪器有限公司 | Portable computer relay protection tester |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100584A (en) * | 2017-06-21 | 2018-12-28 | 国网江苏省电力公司常州供电公司 | The test device for relay protection of height output DC voltage |
| CN109100584B (en) * | 2017-06-21 | 2024-04-09 | 国网江苏省电力公司常州供电公司 | Relay protection testing device for high-output direct-current voltage |
| US20230236243A1 (en) * | 2022-01-24 | 2023-07-27 | Universal Scientific Industrial (Shanghai) Co., Ltd. | Electrical property testing device of evaluation board |
| US11828799B2 (en) * | 2022-01-24 | 2023-11-28 | Universal Scientific Industrial (Shanghai) Co., Ltd. | Electrical property testing device of evaluation board |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160525 |
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| RJ01 | Rejection of invention patent application after publication |