CN101453127A - Trickle electricity charging and supplement system for lightning arrester leakage on-line monitoring system - Google Patents
Trickle electricity charging and supplement system for lightning arrester leakage on-line monitoring system Download PDFInfo
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- CN101453127A CN101453127A CNA200710171494XA CN200710171494A CN101453127A CN 101453127 A CN101453127 A CN 101453127A CN A200710171494X A CNA200710171494X A CN A200710171494XA CN 200710171494 A CN200710171494 A CN 200710171494A CN 101453127 A CN101453127 A CN 101453127A
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Abstract
The present invention relates to a power supply method for a lightning arrester leakage current on-line monitoring system, in particular relates a trickle charge power supply method for the lightning arrester leakage current on-line monitoring system. The method comprises a step of charging a trickle charge circuit, a step of storing electric energy and a step of supplying power to a detecting device by the trickle. Due to the adoption of the technical proposal, the problem of persistent power supply of the lightning arrester monitoring system under a grid transmission system at present is completely solved so as to ensure the on-line remote detection of the lightning arrester to come true.
Description
Technical field
The present invention relates to the method for supplying power to of lightning arrester leakage current on-line monitoring system, particularly the trickle charge method of supplying power to of lightning arrester leakage current on-line monitoring system.
Background technology
In high-voltage fence, zinc oxide arrester is a kind of protection equipment that the protection electric equipment is avoided the overvoltage infringement.Think at present more effectively can faster, correctly reflect that the method for measurement of zinc oxide arrester internal soundness problem is to measure the resistive component of lightning arrester, abbreviate the current in resistance property diagnostic method as.The monitoring method of existing leakage current of an arrester is the mode that relies on artificial on-the-spot poll, reaction speed is slower, accuracy in detection is relatively poor, and therefore the supervision of leakage current of an arrester needs a kind of new method in high-voltage web system, as utilizes the automatic remote method for monitoring of bus and network technology.But because the enforcement of these automatic remote method for monitoring need be stablized lasting power supply supply, and high-voltage fence can't allow the enforcement of conventional electric power system down, and therefore solving method of supplying power to is the precondition that realizes the automatic remote method for monitoring.
Summary of the invention
The objective of the invention is to solve the continued power problem of lightning arrester surveillance under the above-mentioned high-voltage fence, a kind of trickle charge electric power system and method for lightning arrester leakage current on-line monitoring system is provided.
Realize that the object of the invention technical scheme is: a kind of trickle charge electric power system of lightning arrester leakage current on-line monitoring system, be used for testing circuit power supply to the detector that is connected with lightning arrester, it is characterized in that, it comprises the trickle charging circuit that is connected with described testing circuit, this trickle charging circuit utilizes described lightning arrester to do the power supply charging and carries out electrical power storage, is described detector power supply.
Further, the trickle charge electric power system of above-mentioned lightning arrester leakage current on-line monitoring system also comprises rechargeable lithium battary, discharge detection circuit and commutation circuit, wherein,
Described lithium battery is connected with described trickle charging circuit, is used for store electrical energy;
Described discharge detection circuit is connected the count detection that is used to discharge with described trickle charging circuit;
Described commutation circuit, be connected between described trickle charging circuit and the described testing circuit, and be connected with lithium battery, the electric energy of described lithium battery is used for described discharge detection circuit power supply, and is used for when described testing circuit is not worked the electric energy of described storage capacitor is switched to described lithium battery.
A kind of trickle charge method of supplying power to of lightning arrester leakage current on-line monitoring system comprises the steps:
A, lightning arrester are the trickle charging circuit charging as power supply;
B, trickle charging circuit carry out electrical power storage;
The electric energy that C, trickle charging circuit utilization store is described detector power supply.
Further, the trickle charge method of supplying power to of above-mentioned lightning arrester leakage current on-line monitoring system also comprises the steps:
1) switch step: commutation circuit is used for described discharge detection circuit power supply with the electric energy of described lithium battery, and is used for when described testing circuit is not worked the electric energy of described storage capacitor is switched to described lithium battery;
2) discharge examination step: discharge detection circuit detects the counting of the discharge of trickle charging circuit.
Owing to adopted above-mentioned technical solution, solved the continued power problem of lightning arrester surveillance under the present high-voltage fence fully, the online remote detection of lightning arrester is become a reality.
Description of drawings
Fig. 1 is the trickle charge electric power system schematic diagram of lightning arrester leakage current on-line monitoring system of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with drawings and embodiments.
With reference to figure 1, a kind of trickle charge electric power system of lightning arrester leakage current on-line monitoring system, be used for testing circuit 2 power supplies to the detector that is connected with lightning arrester, wherein, it comprises the trickle charging circuit 1 that is connected with described testing circuit, this trickle charging circuit 1 utilizes described lightning arrester 6 to do the power supply charging and carries out electrical power storage, is described detector 5 power supplies.
The trickle charge electric power system of above-mentioned lightning arrester leakage current on-line monitoring system also comprises rechargeable lithium battary 7, discharge detection circuit 4 and commutation circuit 3, wherein,
Described lithium battery 7 is connected with described trickle charging circuit, is used for store electrical energy;
Described discharge detection circuit 4 is connected the count detection that is used to discharge with described trickle charging circuit;
Described commutation circuit 3, be connected between described trickle charging circuit and the described testing circuit, and be connected with lithium battery, the electric energy of described lithium battery is used for described discharge detection circuit power supply, and is used for when described testing circuit is not worked the electric energy of described storage capacitor is switched to described lithium battery.
Above-mentioned trickle charging circuit uses the constant current source charging circuit.Above-mentioned trickle charging circuit charging is to liking big capacity storage capacitor.
Above-mentioned commutation circuit 3 is made up of field effect transistor.
Above-mentioned constant current source charging circuit adopts amplifier and field effect transistor to form.
The trickle charge electric power system of above-mentioned lightning arrester leakage current on-line monitoring system, it can use separately or be shared with other available electric power systems.
Above-mentioned each leakage current of an arrester on-line detector in transformer station adopts the power supply of trickle charge electric power system one to one separately.
A kind of trickle charge method of supplying power to of lightning arrester leakage current on-line monitoring system comprises the steps:
A, lightning arrester are the trickle charging circuit charging as power supply;
B, trickle charging circuit carry out electrical power storage;
The electric energy that C, trickle charging circuit utilization store is described detector power supply.
Further, the trickle charge method of supplying power to of above-mentioned lightning arrester leakage current on-line monitoring system also comprises the steps:
1) switch step: commutation circuit is used for described discharge detection circuit power supply with the electric energy of described lithium battery, and is used for when described testing circuit is not worked the electric energy of described storage capacitor is switched to described lithium battery;
2) discharge examination step: discharge detection circuit detects the counting of the discharge of trickle charging circuit.
Remove the AC power part in each detector, increase the trickle capacitor charging circuit, storage capacitance provides the consumed power of the instantaneous 0.5W of detector by charging modes accumulative total.
With reference to figure 1, the work of whole detector is in low-power consumption at intermittence mode.Lightning arrester 6 is equivalent to the constant-current source of a 0.5mA.Utilize this constant-current source that electric capacity is charged, by the time energy has reached and has guaranteed detector 5 after 10 seconds of consumed power work with 0.5W, and the open detection instrument carries out online testing, records the lightning arrester storage and shows.Also will utilize this constant-current source to lithium battery 7 chargings simultaneously, the electric energy of this part battery is to be used for to discharge counting circuit supply, and this part circuit only needs the operating current of 0.5mA when the work of discharge counting, and all the other times only need the operating current of 1uA.
The calculating of discontinuous operation time is that the hypothesis constant-current source is linear power supply, amount of power supply Q1=C1*I1*T1 (formula is 1.), and wherein C1 is capacitance 3300u, and I1 is charging current value 0.5mA, and T1 is the charging interval.Power consumption Q2=0.5*T2 (formula 2.) intermittently, the T2 electricity consumption time was 10 seconds.The harshest low-power consumption at intermittence mode be formula 1. formula 2., T1 is set at 1 hour.Promptly per hour detector work is once.
Trickle charging circuit in the leakage current of an arrester in-service monitoring instrument as shown in Figure 1 adopts amplifier and field effect transistor to form the constant current source charging circuit.Commutation circuit 3 in the leakage current of an arrester in-service monitoring instrument is made up of field effect transistor.Storage capacitor is the electrochemical capacitor of 1F.Lithium battery 7 is the lithium battery of 19AH.
Above embodiment is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique, under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (7)
1, a kind of trickle charge electric power system of lightning arrester leakage current on-line monitoring system, be used for testing circuit power supply to the detector that is connected with lightning arrester, it is characterized in that, it comprises the trickle charging circuit that is connected with described testing circuit, this trickle charging circuit utilizes described lightning arrester to do the power supply charging and carries out electrical power storage, is described detector power supply.
2, the trickle charge electric power system of lightning arrester leakage current on-line monitoring system as claimed in claim 1 is characterized in that, also comprises rechargeable lithium battary, discharge detection circuit and commutation circuit, wherein,
Described lithium battery is connected with described trickle charging circuit, is used for store electrical energy;
Described discharge detection circuit is connected the count detection that is used to discharge with described trickle charging circuit;
Described commutation circuit, be connected between described trickle charging circuit and the described testing circuit, and be connected with lithium battery, the electric energy of described lithium battery is used for described discharge detection circuit power supply, and is used for when described testing circuit is not worked the electric energy of described storage capacitor is switched to described lithium battery.
3, the trickle charge electric power system of lightning arrester leakage current on-line monitoring system as claimed in claim 1 is characterized in that, described trickle charging circuit uses the constant current source charging circuit.
4, the trickle charge electric power system of lightning arrester leakage current on-line monitoring system as claimed in claim 1 is characterized in that, described trickle charging circuit charging is to liking big capacity storage capacitor.
5, the trickle charge electric power system of lightning arrester leakage current on-line monitoring system as claimed in claim 2 is characterized in that, described commutation circuit is made up of field effect transistor.
6, a kind of trickle charge method of supplying power to of lightning arrester leakage current on-line monitoring system comprises the steps:
A, lightning arrester are the trickle charging circuit charging as power supply;
B, trickle charging circuit carry out electrical power storage;
The electric energy that C, trickle charging circuit utilization store is described detector power supply.
7, a kind of trickle charge method of supplying power to of lightning arrester leakage current on-line monitoring system as claimed in claim 6 also comprises the steps:
1) switch step: commutation circuit is used for described discharge detection circuit power supply with the electric energy of described lithium battery, and is used for when described testing circuit is not worked the electric energy of described storage capacitor is switched to described lithium battery;
2) discharge examination step: discharge detection circuit detects the counting of the discharge of trickle charging circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710171494XA CN101453127A (en) | 2007-11-30 | 2007-11-30 | Trickle electricity charging and supplement system for lightning arrester leakage on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710171494XA CN101453127A (en) | 2007-11-30 | 2007-11-30 | Trickle electricity charging and supplement system for lightning arrester leakage on-line monitoring system |
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| CN101453127A true CN101453127A (en) | 2009-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710171494XA Pending CN101453127A (en) | 2007-11-30 | 2007-11-30 | Trickle electricity charging and supplement system for lightning arrester leakage on-line monitoring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510779A (en) * | 2015-12-01 | 2016-04-20 | 国网四川省电力公司资阳供电公司 | Arrester on-line monitoring system and application method thereof |
| CN105510778A (en) * | 2015-12-01 | 2016-04-20 | 国网四川省电力公司资阳供电公司 | Arrester on-line monitoring terminal device |
| CN107045077A (en) * | 2016-10-14 | 2017-08-15 | 湖北双微电气有限责任公司 | The automatic lightning strike information arrester of transmission and distribution networkses |
-
2007
- 2007-11-30 CN CNA200710171494XA patent/CN101453127A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510779A (en) * | 2015-12-01 | 2016-04-20 | 国网四川省电力公司资阳供电公司 | Arrester on-line monitoring system and application method thereof |
| CN105510778A (en) * | 2015-12-01 | 2016-04-20 | 国网四川省电力公司资阳供电公司 | Arrester on-line monitoring terminal device |
| CN105510779B (en) * | 2015-12-01 | 2018-03-06 | 国网四川省电力公司资阳供电公司 | A kind of arrester on-line monitoring system and its application method |
| CN107045077A (en) * | 2016-10-14 | 2017-08-15 | 湖北双微电气有限责任公司 | The automatic lightning strike information arrester of transmission and distribution networkses |
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Open date: 20090610 |