CN201450321U - Intelligent type microcomputer integrated protection device with working power supply therein - Google Patents
Intelligent type microcomputer integrated protection device with working power supply therein Download PDFInfo
- Publication number
- CN201450321U CN201450321U CN2009200623350U CN200920062335U CN201450321U CN 201450321 U CN201450321 U CN 201450321U CN 2009200623350 U CN2009200623350 U CN 2009200623350U CN 200920062335 U CN200920062335 U CN 200920062335U CN 201450321 U CN201450321 U CN 201450321U
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- circuit
- output
- microcomputer
- integrated protection
- power supply
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Abstract
The utility model discloses an intelligent type microcomputer integrated protection device with working power supply therein, having a little volume, multiple functions and no external power supply. The intelligent type microcomputer integrated protection device comprises a mutual inductor set (1), an input circuit (2), a microcomputer (3), an interface circuit (4), an output circuit (5) and an power supply circuit (6), wherein the mutual inductor (1) comprises more than one current transformer CT and voltage transformer PT, the input terminal of the power supply circuit (6) is connected with a secondary side of the current transformer CT in the mutual inductor set (1), the output terminal of the circuit (6) outputs 5V and 24V DC for supplying the power for each corresponding circuit of the intelligent type microcomputer integrated protection device. The intelligent type microcomputer integrated protection device with working power supply therein has wide application.
Description
Technical field
The utility model relates to a kind of intelligent computer integrated protection of confessing working power.
Background technology
Conventional microcomputer based relay protective device is supplied with direct current or alternating current steady voltage plug by the outside usually, changes constant dc supply into by installing inner inverter again.And in a few thing environment transformer station abominable, from far-off regions; reason owing to the cost cost; the outside can't provide direct current or alternating current steady voltage plug; conventional microcomputer based relay protective device just can't drop into normal use, so the volume that matches with it is little, function complete, the microcomputer protecting device of no external power source is suddenly treated the research and development popularization.
Zhuhai Radiance Electric Co., Ltd. has developed RD200-W series self-powered microcomputer protecting device at above requirement.So-called self-powered promptly obtains energy from current transformer; the self-powered Microcomputer Protection is exactly a class microcomputer protecting device that adopts protection CT power supply, also is CT self-power digital relay, owing to need not accessory power supply; they are fit to be installed in autogamy transfer transformer station, regional transformer station and power distribution station very much.Because of need not independent power supply, protection precision height and definite value the convenient customer acceptance that enjoys is set.
Along with the application of inflation cabinet more and more widely, the inflation cabinet long-pending little, adverse environment resistant strong, safeguard that simple advantage is also admitted by the user gradually; Because its installation region does not all have direct current or alternating current steady voltage plug mostly, also the self-powered microcomputer protecting device is produced big demand.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides that a kind of volume is little, function is complete, the intelligent computer integrated protection of the confession working power of no external power source.
The technical scheme that the utility model adopted is: the utility model comprises the instrument transformer group; input circuit; microcomputer; interface circuit; output circuit; described instrument transformer group comprises an above current transformer CT and voltage transformer pt; described input circuit comprises anti-jamming circuit; low-pass filter circuit; signal conditioning circuit; described microcomputer comprises CPU; analog to digital conversion circuit; imput output circuit; program storage area; static memory; the definite value memory block; timer; the interrupt control unit serial port; display and keyboard and real-time clock; described interface circuit comprises photoelectric isolating circuit; RS232 and RS485 interface; described output circuit comprises buffer circuit; relay; described instrument transformer group is connected with analog to digital conversion circuit in the described microcomputer by described input circuit; the each several part circuit is corresponding in the described microcomputer connects; described output circuit is connected with imput output circuit in the described microcomputer; the contact of described output circuit repeat circuit is controlled by described microcomputer output switching variable and signal; described intelligent computer integrated protection also comprises power circuit; the input of described power circuit connects the secondary side of current transformer CT described in the described instrument transformer group, and the output output 5V of described circuit and 24V direct current are to this each counterpart circuit supply of intelligent computer integrated protection.
The beneficial effects of the utility model are: because the utility model comprises the instrument transformer group; input circuit; microcomputer; interface circuit; output circuit; power circuit; described instrument transformer group comprises an above current transformer CT and voltage transformer pt; described input circuit comprises anti-jamming circuit; low-pass filter circuit; signal conditioning circuit; described microcomputer comprises CPU; analog to digital conversion circuit; imput output circuit; program storage area; static memory; the definite value memory block; timer; the interrupt control unit serial port; display and keyboard and real-time clock; described interface circuit comprises photoelectric isolating circuit; RS232 and RS485 interface; described output circuit comprises buffer circuit; relay; described instrument transformer group is connected with analog to digital conversion circuit in the described microcomputer by described input circuit; the each several part circuit is corresponding in the described microcomputer connects; described output circuit is connected with imput output circuit in the described microcomputer; the contact of described output circuit repeat circuit is controlled by described microcomputer output switching variable and signal; the input of described power circuit connects the secondary side of current transformer CT described in the described instrument transformer group; the output output 5V of described circuit and 24V direct current are to this each counterpart circuit supply of intelligent computer integrated protection, so the utility model volume is little; function is complete; no external power source.
Description of drawings
Fig. 1 is the utility model circuit structure block diagram.
Embodiment
As shown in Figure 1; the utility model comprises instrument transformer group 1; input circuit 2; microcomputer 3; interface circuit 4; output circuit 5; power circuit 6; described instrument transformer group 1 comprises an above current transformer CT and voltage transformer pt; described input circuit 2 comprises anti-jamming circuit; low-pass filter circuit; signal conditioning circuit; described microcomputer 3) comprises CPU 30; analog to digital conversion circuit 31; imput output circuit 32; program storage area 33; static memory 34; definite value memory block 35; timer 36; interrupt control unit 37 serial ports 38; display and keyboard and real-time clock 39; described interface circuit 4 comprises photoelectric isolating circuit 41; RS232 and RS485 interface 42; described output circuit 5 comprises buffer circuit 51; relay 52; described instrument transformer group 1 is connected with analog to digital conversion circuit 31 in the described microcomputer 3 by described input circuit 2; the each several part circuit is corresponding in the described microcomputer 3 connects; described output circuit 5 is connected with imput output circuit 32 in the described microcomputer 3; the contact of described output circuit 5 repeat circuits 52 is controlled by described microcomputer 3 output switching variable and signals; the input of described power circuit 6 connects the secondary side of current transformer CT described in the described instrument transformer group 1, and the output output 5V of described circuit (6) and 24V direct current are to this each counterpart circuit supply of intelligent computer integrated protection.
The utility model can be widely used in Power System Intelligent type computer integrated protection field.
Claims (1)
1. intelligent computer integrated protection of confessing working power; comprise instrument transformer group (1); input circuit (2); microcomputer (3); interface circuit (4); output circuit (5); described instrument transformer group (1) comprises an above current transformer CT and voltage transformer pt; described input circuit (2) comprises anti-jamming circuit; low-pass filter circuit; signal conditioning circuit; described microcomputer (3) comprises CPU (30); analog to digital conversion circuit (31); imput output circuit (32); program storage area (33); static memory (34); definite value memory block (35); timer (36); interrupt control unit (37) serial port (38); display and keyboard and real-time clock (39); described interface circuit (4) comprises photoelectric isolating circuit (41); RS232 and RS485 interface (42); described output circuit (5) comprises buffer circuit (51); relay (52); described instrument transformer group (1) is connected with analog to digital conversion circuit (31) in the described microcomputer (3) by described input circuit (2); the each several part circuit is corresponding in the described microcomputer (3) connects; described output circuit (5) is connected with imput output circuit (32) in the described microcomputer (3); the contact of described output circuit (5) repeat circuit (52) is controlled by described microcomputer (3) output switching variable and signal; it is characterized in that: described intelligent computer integrated protection also comprises power circuit (6); the input of described power circuit (6) connects the secondary side of current transformer CT described in the described instrument transformer group (1), and the output output 5V of described power circuit (6) and 24V direct current are to this each counterpart circuit supply of intelligent computer integrated protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200623350U CN201450321U (en) | 2009-08-14 | 2009-08-14 | Intelligent type microcomputer integrated protection device with working power supply therein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200623350U CN201450321U (en) | 2009-08-14 | 2009-08-14 | Intelligent type microcomputer integrated protection device with working power supply therein |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201450321U true CN201450321U (en) | 2010-05-05 |
Family
ID=42555044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200623350U Expired - Lifetime CN201450321U (en) | 2009-08-14 | 2009-08-14 | Intelligent type microcomputer integrated protection device with working power supply therein |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201450321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088389A (en) * | 2018-07-26 | 2018-12-25 | 广东电网有限责任公司佛山供电局 | The development and application of more power supply smart type microcomputer protecting devices |
-
2009
- 2009-08-14 CN CN2009200623350U patent/CN201450321U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088389A (en) * | 2018-07-26 | 2018-12-25 | 广东电网有限责任公司佛山供电局 | The development and application of more power supply smart type microcomputer protecting devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 519000, No. 33, No. three road, Tang Wan Town, Zhuhai hi tech Zone, Guangdong, 2 Patentee after: ZHUHAI RADIANCE ELECTRIC CO., LTD. Address before: Tangjiawan hit road 519085 Guangdong city of Zhuhai province No. 1 new economic resources development in Hong Kong Zhuhai regant Electric Co. Ltd. Patentee before: Zhuhai Radiance Electric Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100505 |
|
| CX01 | Expiry of patent term |