CN102521954A - Composition circuit of leakage current remote transmitter of lightning arrester - Google Patents
Composition circuit of leakage current remote transmitter of lightning arrester Download PDFInfo
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- CN102521954A CN102521954A CN2011104024020A CN201110402402A CN102521954A CN 102521954 A CN102521954 A CN 102521954A CN 2011104024020 A CN2011104024020 A CN 2011104024020A CN 201110402402 A CN201110402402 A CN 201110402402A CN 102521954 A CN102521954 A CN 102521954A
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- circuit
- leakage current
- single chip
- arrester
- rms value
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a composition circuit of a leakage current remote transmitter of a lightning arrester. The composition circuit comprises a lightening arrester, a monitor sampling circuit, a remote transmitter host, a leakage current measuring and selecting circuit, a true RMS value conversion circuit, a single chip circuit and a GSM (Global System For Mobile) module interface as well as a peripheral circuit, wherein the lightning arrester is connected with the monitor sampling circuit; the monitor sampling circuit is respectively connected with the remote transmitter host and the leakage current measuring and selecting circuit through cables; the leakage current measuring and selecting circuit is connected with the true RMS value conversion circuit; the remote transmitter host and the true RMS value conversion circuit are respectively connected with the single chip circuit; and the single chip circuit is connected with the GSM module interface and the peripheral circuit. According to the composition circuit of the leakage current remote transmitter of the lightning arrester, disclosed by the invention, some problems in lightning protection of circuits can be really reduced, the faults due to the damage caused by thunder can be prevented and reduced, and the loss due to the damage caused by thunder is reduced to maximum extent.
Description
Technical field
The present invention relates to a kind of built-up circuit of leakage current of an arrester teletransmission device.
Background technology
Because the singularity of leakage current of an arrester monitoring product needs long-term non-maintaining operation after the installation, not as testing meter and instrument can regularly calibrate, therefore must possess the good quality production quality controling mode.Particularly in the coastland that belongs to the subtropics monsoon climate, receive typhoon influence many, annual lightning hazards is also many.Transmission line of electricity suffers thunderbolt frequent, and power transmission lines is long, and shaft tower is many; The lightning arrester of installing on the transmission line of electricity is also a lot; But because the workload of checking meter of lightning arrester monitor is too big, the working condition of lightning arrester is difficult to but recognize that the effect of safeguard measures such as line thunder protection also is difficult in time observe.
According to the problem of above existence, in order to reduce operation maintenance personnel's labour intensity greatly, understand the reason of transmission line lightning stroke tripping operation, science is formulated the lightning protection working policy, and seeking the measure of more effective transmission line of electricity lightning protection is emphasis of the present invention.
Summary of the invention
The object of the present invention is to provide a kind of built-up circuit of leakage current of an arrester teletransmission device, the built-up circuit of leakage current of an arrester teletransmission device of the present invention can reduce the problem that some line thunder protection work exist really.Can prevent and reduce the damage to crops caused by thunder fault, the loss that damage to crops caused by thunder is brought is reduced to bottom line.
In order to achieve the above object, technical scheme of the present invention is:
A kind of built-up circuit of leakage current of an arrester teletransmission device comprises lightning arrester, monitor sample circuit, teletransmission device main frame, leakage current measurement selection circuit, true rms value convertor circuit, single chip circuit and gsm module interface and peripheral circuit; Wherein lightning arrester links to each other with the monitor sample circuit; The monitor sample circuit selects circuit to be connected with teletransmission device main frame and leakage current measurement respectively through cable; Leakage current measurement selects circuit to link to each other with the true rms value convertor circuit; Described teletransmission device main frame links to each other with single chip circuit respectively with the true rms value convertor circuit; Single chip circuit links to each other with gsm module interface and peripheral circuit.
Current signal in the described lightning arrester links to each other with the monitor sample circuit; Lightening pulse signal after the monitor sample circuit will be taken a sample and leakage current signal through cable respectively with teletransmission device main frame in the pulse input interface circuit select circuit to be connected with leakage current measurement; Leakage current measurement selects circuit to link to each other with the true rms value convertor circuit, is d. c. voltage signal with the leakage current of an arrester conversion of signals; Pulse input interface circuit in the described teletransmission device main frame links to each other with single chip circuit respectively with the true rms value convertor circuit, carries out data processing; Single chip circuit links to each other with gsm module interface and peripheral circuit, and the control signal after single chip circuit is handled transmits and starts gsm module interface and peripheral circuit, and measurement data is sent.
The invention has the beneficial effects as follows: the built-up circuit of leakage current of an arrester teletransmission device of the present invention can reduce the problem that some line thunder protection work exist really.Can prevent and reduce the damage to crops caused by thunder fault, the loss that damage to crops caused by thunder is brought is reduced to bottom line.
Description of drawings
Fig. 1 is an electrical block diagram of the present invention.
Embodiment
The built-up circuit of a kind of leakage current of an arrester teletransmission device as shown in Figure 1 comprises lightning arrester 7, monitor sample circuit 1, teletransmission device main frame 2, leakage current measurement selection circuit 3, true rms value convertor circuit 4, single chip circuit 5 and gsm module interface and peripheral circuit 6; Current signal MOV in the described lightning arrester 7
A, MOV
B, MOV
CPulse input interface circuit, B phase pulse input interface circuit, home pulse input interface circuit link to each other mutually with A in the monitor sample circuit 1; Monitor sample circuit 1 adopts the mode of voltage load, with the lightening pulse signal M after the sampling
A, M
B, M
CWith leakage current signal C
A, C
B, C
CThrough cable respectively with teletransmission device main frame 2 in pulse input interface circuit and leakage current measurement select circuit 3 to be connected; Leakage current measurement selects circuit 3 to link to each other with true rms value convertor circuit 4, and the pulse input interface circuit in the described teletransmission device main frame 2 links to each other with single chip circuit 5 respectively with true rms value convertor circuit 4; Wherein leakage current measurement selects circuit 3 to select leakage current of an arrester signal C1, converts d. c. voltage signal C2 into through true rms value convertor circuit 4, is sent to the A/D conversion input end of single chip circuit 5 then; Carry out data processing; Single chip circuit 5 links to each other with gsm module interface and peripheral circuit 6, and the control signal Cs control gsm module interface after single chip circuit 5 is handled and the startup of peripheral circuit 6 connect gsm module through the RS232 serial line interface measurement data is sent.
After utilizing a kind of built-up circuit of leakage current of an arrester teletransmission device of present embodiment, the long-standing monitor problem of checking meter has obtained solving preferably.When running into thunderbolt, the teletransmission device can be beamed back lightning arrester action counting come in real time, need not arrive field observation.In addition, the teletransmission device timed sending every month statistical counting information of returning both can have been replenished the data that action counting before causing because of movable signal is bad sends failure, also can regularly detect the working condition of teletransmission device.
The lightning stroke trip fault took place in regular meeting when circuit was in service, through the action data that the teletransmission device is beamed back, can verify further that the line tripping fault is really produced by thunderbolt.When the circuit load variations is excessive; Unusual fluctuations can appear in line voltage distribution; The PV of local line might reach the switching overvoltage zone of lightning arrester action, thereby triggers the teletransmission device, the time data of beaming back according to the teletransmission device; Can remind the operation of operator on duty's bar circuit to occur to keep watch on unusually indirectly.
Claims (2)
1. the built-up circuit of a leakage current of an arrester teletransmission device is characterized in that: comprise lightning arrester (7), monitor sample circuit (1), teletransmission device main frame (2), leakage current measurement selection circuit (3), true rms value convertor circuit (4), single chip circuit (5) and gsm module interface and peripheral circuit (6); Wherein lightning arrester (7) links to each other with monitor sample circuit (1); Monitor sample circuit (1) selects circuit (3) to be connected with teletransmission device main frame (2) and leakage current measurement respectively through cable; Leakage current measurement selects circuit (3) to link to each other with true rms value convertor circuit (4); Described teletransmission device main frame (2) links to each other with single chip circuit (5) respectively with true rms value convertor circuit (4); Single chip circuit (5) links to each other with gsm module interface and peripheral circuit (6).
2. the built-up circuit of a kind of leakage current of an arrester teletransmission device as claimed in claim 1 is characterized in that: the current signal in the described lightning arrester (7) links to each other with pulse input interface circuit in the monitor sample circuit (1); Lightening pulse signal after monitor sample circuit (1) will be taken a sample and leakage current signal through cable respectively with teletransmission device main frame (2) in the pulse input interface circuit select circuit (3) to be connected with leakage current measurement; Leakage current measurement selects circuit (3) to link to each other with true rms value convertor circuit (4), is d. c. voltage signal with the leakage current of an arrester conversion of signals; Pulse input interface circuit in the described teletransmission device main frame (2) links to each other with single chip circuit (5) respectively with true rms value convertor circuit (4), carries out data processing; Single chip circuit (5) links to each other with gsm module interface and peripheral circuit (6), and the control signal after single chip circuit (5) is handled transmits and starts gsm module interface and peripheral circuit (6), and measurement data is sent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104024020A CN102521954A (en) | 2011-12-07 | 2011-12-07 | Composition circuit of leakage current remote transmitter of lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104024020A CN102521954A (en) | 2011-12-07 | 2011-12-07 | Composition circuit of leakage current remote transmitter of lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102521954A true CN102521954A (en) | 2012-06-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104024020A Pending CN102521954A (en) | 2011-12-07 | 2011-12-07 | Composition circuit of leakage current remote transmitter of lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102521954A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564002A (en) * | 2004-04-06 | 2005-01-12 | 常州市武进恒昌机械厂 | On-line monitor of lighting arrester |
| CN2697659Y (en) * | 2004-04-12 | 2005-05-04 | 江苏省电力公司镇江供电公司 | Remote on-line intelligent monitor instrument for metallic oxide lighting arrester |
| CN201111702Y (en) * | 2007-10-12 | 2008-09-10 | 南京德闰电气有限公司 | Arrester leakage current telemetering device |
-
2011
- 2011-12-07 CN CN2011104024020A patent/CN102521954A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564002A (en) * | 2004-04-06 | 2005-01-12 | 常州市武进恒昌机械厂 | On-line monitor of lighting arrester |
| CN2697659Y (en) * | 2004-04-12 | 2005-05-04 | 江苏省电力公司镇江供电公司 | Remote on-line intelligent monitor instrument for metallic oxide lighting arrester |
| CN201111702Y (en) * | 2007-10-12 | 2008-09-10 | 南京德闰电气有限公司 | Arrester leakage current telemetering device |
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Application publication date: 20120627 |