CN201218827Y - Arrester on-line monitor with communication ability - Google Patents
Arrester on-line monitor with communication ability Download PDFInfo
- Publication number
- CN201218827Y CN201218827Y CNU2008200290023U CN200820029002U CN201218827Y CN 201218827 Y CN201218827 Y CN 201218827Y CN U2008200290023 U CNU2008200290023 U CN U2008200290023U CN 200820029002 U CN200820029002 U CN 200820029002U CN 201218827 Y CN201218827 Y CN 201218827Y
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- lightning arrester
- monitoring device
- line monitoring
- electrically connected
- current
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Abstract
The utility model relates to a lightning arrester in the power device, especially an online monitor of the lightning arrester with the communication ability. The lightning arrester comprises an lightning arrester online monitor having an online monitoring sampling loop (1), an online monitoring counter (2), an online monitoring milliammeter (3); one end of the online monitoring sampling loop (1) is electrically connected to the lightning arrester current input end (18); another end is electrically connected to the ground (19); being characterized in that the lightning arrester online monitor is electrically connected to the interface via controlling the device. The communication lightning arrester oneling monitor has the advantages of long distant transmission, great anti-interfering ability, reliable operation and common signal line be multiple monitors and so on.
Description
Technical field
The utility model relates to the lightning arrester in a kind of power equipment, particularly has the lightning arrester on-line monitoring device of ability to communicate.
Background technology
Along with improving constantly of Automation of Electric Systems degree, what automatic station was a large amount of popularizes.Because common lightning arrester on-line monitoring device needs the operator on duty to make an inspection tour, therefore can not in time find the abnormal conditions of lightning arrester, grasp the various parameters of lightning arrester operation, guarantee the lightning arrester safe operation.
Summary of the invention
The purpose of this utility model provides a kind of abnormal conditions that can in time find lightning arrester, grasps the various parameters of lightning arrester operation, guarantees the lightning arrester on-line monitoring device with ability to communicate of lightning arrester safe operation.
The purpose of this utility model is achieved in that the lightning arrester on-line monitoring device with ability to communicate, and it comprises the lightning arrester on-line monitoring device that online monitor sampling loop, on-line monitoring device counter, on-line monitoring device milliammeter constitute; On-line monitoring device sampling loop one end is electrically connected with the lightning arrester current input terminal, and the other end is electrically connected with earth terminal, it is characterized in that: lightning arrester on-line monitoring device is electrically connected with interface circuit by control device.
Described control device comprises single-chip microcomputer, A/D analog to digital converter, communicating circuit at least, and on-line monitoring device counter is electrically connected with the input end of midget relay, and the output terminal of midget relay is electrically connected with the I/O mouth of single-chip microcomputer; On-line monitoring device milliammeter is serially connected with sample resistance simultaneously, and the output voltage of sample resistance is electrically connected with the A/D converter input end, and the A/D converter data output end is electrically connected with the I/O mouth and the data port of single-chip microcomputer; Single-chip microcomputer is connected by photoelectric isolating circuit photoelectricity with communicating circuit again.
Described interface circuit is the RS485 PORT COM.
Described lightning arrester current input terminal is socketed with filthy current sampling becket, filthy current sampling becket is connected with the filthy electric current of monitor input port, filthy current sampling becket one output terminal is electrically connected with rectification circuit, rectification circuit output also is connected to capacitor, and capacitor is input to an input end of A/D converter by the voltage divider decay.
The upper end of described earth terminal is socketed with a dash current sample coil, and dash current sample coil one end is electrically connected with rectification circuit, and rectification circuit output also is connected to capacitor, is input to the input end of A/D converter after capacitor declines a little by voltage divider.
The utility model has the advantages that: owing to be electrically connected with interface circuit, be electrically connected between interface circuit and the control device at lightning arrester on-line monitoring device.Can be in real time leakage current, discharge time and discharge time (also can select the filthy electric current of lightning arrester shell, dash current amplitude, current in resistance property etc.) of lightning arrester be transferred to master-control room by control device, transmits to the higher level again.It can in time find the abnormal conditions of lightning arrester, grasps the various parameters of lightning arrester operation, guarantees the lightning arrester safe operation.RS485 communication type lightning arrester on-line monitoring utensil has long transmission distance, and antijamming capability is strong, reliable operation, advantages such as the shared signal line of a plurality of monitors.
Description of drawings
Below in conjunction with the embodiment accompanying drawing the utility model is done an into explanation.
Fig. 1 provides existing lightning arrester on-line monitoring device structure;
Fig. 2 is the utility model embodiment circuit theory diagrams.
Wherein: 1, on-line monitoring device sampling loop; 2, on-line monitoring device counter; 3, on-line monitoring device milliammeter; 4, midget relay; 5, sample resistance; 6, single-chip microcomputer; 7, A/D converter; 8, communicating circuit; 9, photoelectric isolating circuit; 10, power circuit; 11, dash current sample coil; 12, rectification circuit; 13, capacitor; 14, voltage divider; 15, filthy current sampling becket; 16, RS485 PORT COM; 17, power supply input; 18, lightning arrester current input terminal, 19, earth terminal.
Embodiment
As shown in Figure 1, provide existing lightning arrester on-line monitoring device structure.
It comprises online monitor sampling loop 1, on-line monitoring device counter 2, on-line monitoring device milliammeter 3; On-line monitoring device sampling loop 1 one ends are electrically connected with lightning arrester current input terminal 18, and the other end is electrically connected with earth terminal 19, and on-line monitoring device sampling loop 1 obtains current signal by lightning arrester current input terminal 18.Lightning arrester on-line monitoring device shows electric current again by on-line monitoring device milliammeter 3; Lightning arrester impulsive discharge number of times is then provided by on-line monitoring device counter 2.Lightning arrester on-line monitoring device is electrically connected with interface circuit by control device.Interface circuit is a RS485 PORT COM 16.
As shown in Figure 2, control device comprises single-chip microcomputer 6, A/D converter 7 (A/D analog to digital converter), communicating circuit 8 at least, on-line monitoring device inside counting device 2 is electrically connected with the input end of midget relay 4, and the output terminal of midget relay 4 is electrically connected with the I/O mouth of single-chip microcomputer 6; On-line monitoring device milliammeter 3 is serially connected with sample resistance 5 simultaneously, and the output voltage of sample resistance 5 is electrically connected with A/D converter 7 input ends, and A/D converter 7 data output ends are electrically connected with the I/O mouth and the data port of single-chip microcomputer 6; Single-chip microcomputer 6 is connected with communicating circuit 8 photoelectricity again.Like this, when dash current passes through lightning arrester, on-line monitoring device inside counting device 2 countings, midget relay 4 closures once, relay contact (output terminal) is electrically connected with single-chip microcomputer 6 I/O mouths, single-chip microcomputer 6 is noted the lightning arrester discharge time, notes system time simultaneously, is the discharge time of lightning arrester.Sample resistance 5 of serial connection is sent the leakage current of an arrester signal into A/D converter 7 below the on-line monitoring device milliammeter 3, and is converted to digital signal input single-chip microcomputer.
Single-chip microcomputer 6, A/D converter 7, communication module 8, photoelectric isolating circuit 9 are electrically connected with power circuit 10, and power circuit 10 connects power supply input 17.
Be installed in the lightning arrester shell near metal flange place under the lightning arrester with a filthy current sampling becket 15, filthy current sampling becket 15 is connected with the filthy electric current of monitor input port, lightning arrester case surface electric current just can not flow in the monitor by the lightning arrester lower flange like this, filthy electric current is through rectification circuit 12 rectifications and capacitor 13 filtering, be input to another input end of A/D converter 7 by voltage divider 14 decay, carry out filthy current measurement.
Be socketed with a dash current sample coil 11 (formal name used at school Luo Kefu coil) in upper end from earth terminal 19, when lightning current or operation ripple electric current flow through lightning arrester, coil-inducedly go out current signal, current signal charges to capacitor 13 through rectification circuit 12, charging voltage and current amplitude are proportional, be input to the 3rd input end of A/D converter 7 after voltage on the capacitor declines a little by voltage divider 14, single-chip microcomputer is noted lightning arrester dash current amplitude.When needing communication, single-chip microcomputer is transferred to the lightning arrester discharge time of leakage current of an arrester value and system log (SYSLOG) and discharge time (also can with filthy electric current, dash current amplitude etc.) in higher level's computing machine by communication module 8.
Claims (5)
1, the lightning arrester on-line monitoring device that has ability to communicate, it comprises the lightning arrester on-line monitoring device that online monitor sampling loop (1), on-line monitoring device counter (2), on-line monitoring device milliammeter (3) constitute; On-line monitoring device sampling loop (1) one end is electrically connected with lightning arrester current input terminal (18), and the other end is electrically connected with earth terminal (19), it is characterized in that: lightning arrester on-line monitoring device is electrically connected with interface circuit by control device.
2, the lightning arrester on-line monitoring device with ability to communicate according to claim 1, it is characterized in that: described control device comprises single-chip microcomputer (6), A/D analog to digital converter (7), communicating circuit (8) at least, on-line monitoring device counter (2) is electrically connected with the input end of midget relay (4), and the output terminal of midget relay (4) is electrically connected with the I/O mouth of single-chip microcomputer (6); On-line monitoring device milliammeter (3) is serially connected with sample resistance (5) simultaneously, and the output voltage of sample resistance (5) is electrically connected with A/D converter (7) input end, and A/D converter (7) data output end is electrically connected with the I/O mouth and the data port of single-chip microcomputer (6); Single-chip microcomputer (6) is connected by photoelectric isolating circuit (9) photoelectricity with communicating circuit (8) again.
3, the lightning arrester on-line monitoring device with ability to communicate according to claim 1, it is characterized in that: described interface circuit is RS485 PORT COM (16).
4, the lightning arrester on-line monitoring device with ability to communicate according to claim 1, it is characterized in that: described lightning arrester current input terminal (18) is socketed with filthy current sampling becket (15), filthy current sampling becket (15) is connected with the filthy electric current of monitor input port, filthy current sampling becket (15) one output terminals are electrically connected with rectification circuit (12), capacitor (13) is exported and be connected to rectification circuit (12), and capacitor (13) is input to an input end of A/D converter (7) by voltage divider (14) decay.
5, the lightning arrester on-line monitoring device with ability to communicate according to claim 1, it is characterized in that: the upper end of described earth terminal (19) is socketed with a dash current sample coil (11), dash current sample coil (11) one ends are electrically connected with rectification circuit (12), capacitor (13) is exported and be connected to rectification circuit (12), is input to the input end of A/D converter (7) after capacitor (13) declines a little by voltage divider (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200290023U CN201218827Y (en) | 2008-04-30 | 2008-04-30 | Arrester on-line monitor with communication ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200290023U CN201218827Y (en) | 2008-04-30 | 2008-04-30 | Arrester on-line monitor with communication ability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218827Y true CN201218827Y (en) | 2009-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200290023U Expired - Fee Related CN201218827Y (en) | 2008-04-30 | 2008-04-30 | Arrester on-line monitor with communication ability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218827Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879683A (en) * | 2012-09-29 | 2013-01-16 | 中国西电电气股份有限公司 | Withstand explosion detection device and method for power capacitor |
| CN105699754A (en) * | 2016-04-06 | 2016-06-22 | 长沙群瑞电子科技有限公司 | Leakage current monitoring device for three-phase lightning arrester |
| CN105891640A (en) * | 2016-04-26 | 2016-08-24 | 南方电网科学研究院有限责任公司 | Clearance arrester operation information acquisition apparatus, monitoring system and method |
-
2008
- 2008-04-30 CN CNU2008200290023U patent/CN201218827Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879683A (en) * | 2012-09-29 | 2013-01-16 | 中国西电电气股份有限公司 | Withstand explosion detection device and method for power capacitor |
| CN102879683B (en) * | 2012-09-29 | 2014-12-24 | 中国西电电气股份有限公司 | Withstand explosion detection device and method for power capacitor |
| CN105699754A (en) * | 2016-04-06 | 2016-06-22 | 长沙群瑞电子科技有限公司 | Leakage current monitoring device for three-phase lightning arrester |
| CN105891640A (en) * | 2016-04-26 | 2016-08-24 | 南方电网科学研究院有限责任公司 | Clearance arrester operation information acquisition apparatus, monitoring system and method |
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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 |
Owner name: XI AN XIRUN ELECTRICAL TECHNOLOGY CO., LTD Free format text: NEW ADDRESS: NO.1030, MODERN ENTERPRISE CENTER, A9, NO.69 JINYE ROAD, HIGH-TECH INDUSTRIAL DEVELOPMENT AREA OF XIAN CITY, SHANXI PROVINCE, ZIP CODE:710077 |
|
| CP02 | Change in the address of a patent holder |
Address after: No. 1030, A9 modern enterprise center, 69 Kam Yip Road, Xi'an hi tech Development Zone, Shaanxi, China: 710077 Patentee after: Xi'an West Electric Appliance Technology Co., Ltd. Address before: Shaanxi province Xi'an city high tech Development Zone, Tang Yan Mong Modern City No. C1502, zip code: 710077 Patentee before: Xi'an West Electric Appliance Technology Co., Ltd |
|
| DD01 | Delivery of document by public notice |
Addressee: Xi'an Xirun Electric Appliance Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20140430 |