CN104734497B - Arrester online monitoring system power supply - Google Patents
Arrester online monitoring system power supply Download PDFInfo
- Publication number
- CN104734497B CN104734497B CN201510155193.2A CN201510155193A CN104734497B CN 104734497 B CN104734497 B CN 104734497B CN 201510155193 A CN201510155193 A CN 201510155193A CN 104734497 B CN104734497 B CN 104734497B
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- China
- Prior art keywords
- arrester
- power supply
- monitoring system
- online monitoring
- zener diode
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- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
- H02M3/072—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps adapted to generate an output voltage whose value is lower than the input voltage
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
A kind of arrester online monitoring system power supply, including varistor, the first capacitance, current-limiting resistance, NPN triode and the first zener diode；Output terminal, one end of the current-limiting resistance and the collector of the NPN triode of one end connection arrester of first capacitance, the ground terminal of other end connection arrester, the anode of first zener diode and the ground connection of first capacitance；The other end of the current-limiting resistance connects the base stage of the NPN triode and the cathode of first zener diode, and the emitter of the NPN triode is suitable for output supply voltage.The arrester online monitoring system power supply of the present invention ensures the work steady in a long-term of arrester online monitoring system using the working method for asking for power supply.
Description
Technical field
The present invention relates to transmission line of electricity monitoring technology on-line field, more particularly to a kind of arrester online monitoring system electricity
Source.
Background technology
With the intelligentized fast development of China's power grid, the reliability of various smart machines seems extremely important.It is wherein golden
The reliability for belonging to Oxide Arrester directly affects the safe operation of other equipment in electric system, therefore metal oxide is taken shelter from the thunder
The on-line monitoring technique application of device becomes increasingly extensive.
Gapless metal-oxide lighting arrester is mainly made of the part such as insulator, resistor disc and dielectric framework, wherein important
Basic structure is exactly resistor disc, is connected and/or is composed in parallel by metal zinc oxide resistor disc and without between electric discharge in parallel or series
The arrester of gap.Zinc oxide resistance sheet has very useful nonlinear characteristic, the electricity presented in the case where there is the high voltages such as lightning stroke
Hinder very little, can release a large amount of lightning currents and residual voltage it is very low；Under power grid normal operating voltage, the resistance that arrester is presented is very
Greatly, leakage current only has the μ A of 50 μ A ~ 150, and electric current is too small to can be considered no power frequency continued flow.
Since metal oxide arrester does not have discharging gap, zinc oxide resistance sheet bears working voltage for a long time, and lets out
Leakage current constantly flows through each series resistance piece of arrester, and the size of this electric current depends on thermostabilization and the resistor disc of arrester
Degree of aging.Arrester is typically mounted at outdoor, it is easy to make moist, aging and surface have filth, this all can make arrester just
Often dielectric level over the ground reduces, leakage current increase, directly breakdown and damage.It therefore, can letting out measurement arrester
A kind of important means of the leakage current as monitoring arrester quality condition.
Since surge arrester failure is fast-growth, traditional annual preventive trial is cannot to find that it is lacked completely
Sunken, it is necessary to the operation conditions of arrester is grasped using on-line monitoring technique, to ensure the safe operation of arrester.It is existing to keep away
Thunder device online monitoring system is generally using external power supply or battery powered, and when being powered using external power supply, external power supply is easy
It is damaged by thunder and lightning, and uses battery powered, it is necessary to which battery is replaced in timing, on-line monitoring power supply is the key issue to be solved
One of.
The content of the invention
It is to ask for the arrester online monitoring system of power supply that problem to be solved by this invention, which is to provide a kind of working method,
Power supply ensures the work steady in a long-term of arrester online monitoring system.
To solve the above problems, the present invention provides a kind of arrester online monitoring system power supply, including varistor, first
Capacitance, current-limiting resistance, NPN triode and the first zener diode；
One end connection output terminal of arrester, one end of the varistor, the current-limiting resistance of first capacitance
One end and the NPN triode collector, the other end of first capacitance connects first zener diode
Anode, the other end of the varistor and ground connection；
The other end of the current-limiting resistance connects the base stage of the NPN triode and the moon of first zener diode
Pole, the emitter of the NPN triode are suitable for output supply voltage.
Optionally, the arrester online monitoring system power supply further includes the second zener diode；
The output terminal of the cathode connection arrester of second zener diode, the anode of second zener diode connect
Ground.
Optionally, the burning voltage of second zener diode is higher than the burning voltage of first zener diode.
Optionally, the arrester online monitoring system power supply further includes the second capacitance；
One end of second capacitance connects the emitter of the NPN triode, the other end connection of second capacitance
The anode of first zener diode.
Optionally, the arrester online monitoring system power supply further includes what is be connected with the emitter of the NPN triode
Bleeder circuit, the bleeder circuit are suitable for the supply voltage is divided to generate branch pressure voltage.
Optionally, the bleeder circuit is resistor voltage divider circuit.
Compared with prior art, the present invention has the following advantages：
Arrester online monitoring system power supply provided by the invention, is connected in the leakage current circuit of arrester, using pair
The leakage current of arrester is converted to voltage by the mode that capacitance charges, and voltage stabilizing is carried out to transformed voltage using as arrester
The supply voltage of online monitoring system power supply so as to substitute external power supply or battery powered, ensures arrester on-line monitoring system
It unites work steady in a long-term.
In the alternative of the present invention, the shunt regulator diode between the output terminal and ground of arrester can prevent thunder
Arrester online monitoring system power supply is damaged due to generation overvoltage and overcurrent when hitting, improves arrester online monitoring system power supply
Reliability.
In the alternative of the present invention, in the output terminal parallel filtering capacitance of arrester online monitoring system power supply, improve
The stability for the supply voltage that arrester online monitoring system power supply provides.
In the alternative of the present invention, in the output terminal parallel connection bleeder circuit of arrester online monitoring system power supply, pass through
The supply voltage that bleeder circuit provides arrester online monitoring system power supply divides, and can be arrester on-line monitoring system
System provides available reference voltage.
Description of the drawings
Fig. 1 is a kind of circuit diagram of the arrester online monitoring system power supply of the embodiment of the present invention；
Fig. 2 is another circuit diagram of the arrester online monitoring system power supply of the embodiment of the present invention；
Fig. 3 is another circuit diagram of the arrester online monitoring system power supply of the embodiment of the present invention；
Fig. 4 is another circuit diagram of the arrester online monitoring system power supply of the embodiment of the present invention；
Fig. 5 is a kind of structure diagram of the arrester online monitoring system power supply of the embodiment of the present invention.
Specific embodiment
The present invention will now be described in further detail with reference to the accompanying drawings and the accompanying drawings, but embodiments of the present invention
It is without being limited thereto.
Fig. 1 is a kind of circuit diagram of arrester online monitoring system power supply provided in an embodiment of the present invention, the arrester
Online monitoring system power supply includes varistor R11, the first capacitance C11, current-limiting resistance R12, NPN triode Q1 1 and first
Zener diode ZD11.The output terminal of one end connection arrester 10 of the first capacitance C11, the one of the varistor R11
The collector at end, one end of the current-limiting resistance R12 and the NPN triode Q1 1, the other end of the first capacitance C11
Connect the anode of the first zener diode ZD11, the other end of the varistor R11 and ground connection；The current-limiting resistance
The other end of R12 connects the base stage of the NPN triode Q1 1 and the cathode of the first zener diode ZD11, the NPN tri-
It is the confession of arrester online monitoring system that the emitter of pole pipe Q11, which is suitable for output supply voltage Vout, the supply voltage Vout,
Electricity.It should be noted that by choosing the first zener diode ZD11 with different burning voltages, can adjust described
The voltage value of supply voltage Vout, to meet the power demands of different arrester online monitoring systems.
In the prior art, the output terminal of arrester 10 is directly grounded, and in the present embodiment, system is monitored online in arrester
System power supply is connected in the leakage current circuit of arrester 10.When arrester 10 is not operating, high resistant is presented in the varistor R11
Anti-, leakage current charges to the first capacitance C11, and the NPN triode Q1 1, the current-limiting resistance R12 and described first are surely
The regulator circuit that pressure diode ZD11 is formed carries out voltage stabilizing to the voltage that the first capacitance C11 is exported, so as to generate the electricity
Source voltage Vout；When arrester 10 acts, there is high current to flow through arrester 10, the varistor within the very short time
The impedance of R11 becomes very small, and dash current is released to ground by the varistor R11.The arrester of the present embodiment is online
Supervision system power uses the working method for asking for power supply, is not easy, by broken by lightning, also to eliminate the inconvenience for frequently replacing battery,
It ensure that the work steady in a long-term of arrester online monitoring system.
Fig. 2 is the circuit diagram of another arrester online monitoring system power supply provided in an embodiment of the present invention, described lightning-arrest
Device online monitoring system power supply includes varistor R21, the first capacitance C21, current-limiting resistance R22, NPN triode Q21, first surely
Press diode ZD21 and the second zener diode ZD22.The varistor R21, the first capacitance C21, current limliting electricity
Hinder the connection structure embodiment class corresponding with Fig. 1 of R22, the NPN triode Q21 and the first zener diode ZD21
Seemingly, details are not described herein.The output terminal of the cathode connection arrester 20 of the second zener diode ZD22, second voltage stabilizing
The plus earth of diode ZD22, the burning voltage of the second zener diode ZD22 are higher than first zener diode
The burning voltage of ZD21.
Compared with the corresponding embodiments of Fig. 1, the arrester online monitoring system power supply of the present embodiment is in the defeated of arrester 20
The second zener diode ZD22 in parallel between outlet and ground.When lightning stroke causes overvoltage between the output terminal and ground of arrester 20
Or during overcurrent, the second zener diode ZD22 is breakdown, and instantaneous energy is released by the second zener diode ZD22
To ground, it can prevent arrester online monitoring system power supply from damaging, further improve arrester online monitoring system power supply
Reliability.
Fig. 3 is the circuit diagram of another arrester online monitoring system power supply provided in an embodiment of the present invention, described lightning-arrest
Device online monitoring system power supply includes varistor R31, the first capacitance C31, current-limiting resistance R32, NPN triode Q31, first surely
Press diode ZD31 and the second capacitance C32, the varistor R31, the first capacitance C31, the current-limiting resistance R32,
The connection structure embodiment corresponding with Fig. 1 of the NPN triode Q31 and the first zener diode ZD31 is similar,
This is repeated no more.One end of the second capacitance C32 connects the emitter of the NPN triode Q31, the second capacitance C32
The other end connect the anode of the first zener diode ZD31.
Compared with the corresponding embodiments of Fig. 1, the arrester online monitoring system power supply of the present embodiment is in the NPN triode
The second capacitance C32 in parallel between the emitter of Q31 and ground.By the second capacitance C32 in parallel, can exist to arrester
The supply voltage Vout of line supervision system power output is filtered, and improves the stability of the supply voltage.
Fig. 4 is the circuit diagram of another arrester online monitoring system power supply provided in an embodiment of the present invention, described lightning-arrest
Device online monitoring system power supply includes varistor R41, the first capacitance C41, current-limiting resistance R42, NPN triode Q41, first surely
Press diode ZD41, the second zener diode ZD42 and the second capacitance C42.The arrester online monitoring system electricity of the present embodiment
Concrete structure and the operation principle embodiment corresponding with Fig. 2 and Fig. 3 in source are similar, and details are not described herein.
For in some arrester online monitoring systems, not needing only provide for the supply voltage of work, it is also necessary to provide one
A little reference voltages.Based on this, the embodiment of the present invention provides another arrester online monitoring system power supply, and structure diagram is as schemed
Shown in 5.The arrester online monitoring system power supply includes varistor R51, the first capacitance C51, current-limiting resistance R52, NPN tri-
Pole pipe Q51, the first zener diode ZD51 and bleeder circuit 51, it is the varistor R51, the first capacitance C51, described
The connection structure reality corresponding with Fig. 1 of current-limiting resistance R52, the NPN triode Q51 and the first zener diode ZD51
It is similar to apply example, details are not described herein.The bleeder circuit 51 is connected with the emitter of the NPN triode Q51, suitable for power supply
Voltage Vout is divided to generate branch pressure voltage.The bleeder circuit 51 can be resistor voltage divider circuit, i.e., including multiple strings
The resistance of connection is divided, or other circuit structures no longer describe one by one herein.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is every according to
According to the present invention technical spirit above example is made any simple modification, equivalent variations, each fall within the present invention protection
Within the scope of.
Claims (4)
1. a kind of arrester online monitoring system power supply, which is characterized in that including varistor, the first capacitance, current-limiting resistance,
NPN triode and the first zener diode；
One end of first capacitance, one end of the varistor, one end of the current-limiting resistance and the NPN triode
Collector connection arrester output terminal, the other end of first capacitance, the anode, described of first zener diode
The other end ground connection of varistor；
The other end of the current-limiting resistance connects the base stage of the NPN triode and the cathode of first zener diode, institute
The emitter of NPN triode is stated suitable for output supply voltage Vout, the supply voltage Vout is arrester online monitoring system
Power supply, arrester online monitoring system power supply are connected in the leakage current circuit of arrester；
Further include the second zener diode；
The output terminal of the cathode connection arrester of second zener diode, the plus earth of second zener diode；
The burning voltage of second zener diode is higher than the burning voltage of first zener diode.
2. arrester online monitoring system power supply according to claim 1, which is characterized in that further include the second capacitance；
One end of second capacitance connects the emitter of the NPN triode, described in the other end connection of second capacitance
The anode of first zener diode.
3. arrester online monitoring system power supply according to claim 2, which is characterized in that further include and the NPN tri-
The bleeder circuit of the emitter connection of pole pipe, the bleeder circuit are suitable for the supply voltage is divided to generate partial pressure electricity
Pressure.
4. arrester online monitoring system power supply according to claim 3, which is characterized in that the bleeder circuit is resistance
Bleeder circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510155193.2A CN104734497B (en) | 2015-04-03 | 2015-04-03 | Arrester online monitoring system power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510155193.2A CN104734497B (en) | 2015-04-03 | 2015-04-03 | Arrester online monitoring system power supply |
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| Publication Number | Publication Date |
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| CN104734497A CN104734497A (en) | 2015-06-24 |
| CN104734497B true CN104734497B (en) | 2018-05-22 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4338648A (en) * | 1980-11-10 | 1982-07-06 | General Electric Company | Gapless discharge counter for lightning arresters |
| US5136455A (en) * | 1990-03-16 | 1992-08-04 | Esp Electronic Systems Protection, Inc. | Electromagnetic interference suppression device |
| CN101425353A (en) * | 2008-12-10 | 2009-05-06 | 王国才 | Non-residual pressure monitor for lightning arrester |
| CN102118066A (en) * | 2010-12-15 | 2011-07-06 | 中国西电电气股份有限公司 | On-line arrester monitoring device with self-energy-taking function |
| CN203151236U (en) * | 2012-09-29 | 2013-08-21 | 吉林省电力有限公司长春供电公司 | Cable line arrester on-line monitoring system power supply |
| CN204578083U (en) * | 2015-04-03 | 2015-08-19 | 四川蓝讯宝迩电子科技有限公司 | To ask for power type lightning arrester supervisory control system |
-
2015
- 2015-04-03 CN CN201510155193.2A patent/CN104734497B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4338648A (en) * | 1980-11-10 | 1982-07-06 | General Electric Company | Gapless discharge counter for lightning arresters |
| US5136455A (en) * | 1990-03-16 | 1992-08-04 | Esp Electronic Systems Protection, Inc. | Electromagnetic interference suppression device |
| CN101425353A (en) * | 2008-12-10 | 2009-05-06 | 王国才 | Non-residual pressure monitor for lightning arrester |
| CN102118066A (en) * | 2010-12-15 | 2011-07-06 | 中国西电电气股份有限公司 | On-line arrester monitoring device with self-energy-taking function |
| CN203151236U (en) * | 2012-09-29 | 2013-08-21 | 吉林省电力有限公司长春供电公司 | Cable line arrester on-line monitoring system power supply |
| CN204578083U (en) * | 2015-04-03 | 2015-08-19 | 四川蓝讯宝迩电子科技有限公司 | To ask for power type lightning arrester supervisory control system |
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| Publication number | Publication date |
|---|---|
| CN104734497A (en) | 2015-06-24 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Shiyu Inventor after: Huang Xiaohong Inventor after: Gao Xiaogang Inventor before: Li Shengfeng |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180419 Address after: 750000 Yinchuan, the Ningxia Hui Autonomous Region, Jinfeng District, Ning'an Street 490, Yinchuan IBI breeding center two phase 6 Building 1401 room. Applicant after: NINGXIA CN-SC LIGHTING PROTECTION CO., LTD. Address before: 610000 Sichuan city of Chengdu province high tech Zone Shiyang Industrial Park Applicant before: Sichuan Lanxunbaoer Electronics Technology Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 750000 Yinchuan, the Ningxia Hui Autonomous Region, Jinfeng District, Ning'an Street 490, Yinchuan IBI breeding center two phase 6 Building 1401 room. Patentee after: Zhongke Tianji Technology Co.,Ltd. Address before: 750000 Yinchuan, the Ningxia Hui Autonomous Region, Jinfeng District, Ning'an Street 490, Yinchuan IBI breeding center two phase 6 Building 1401 room. Patentee before: NINGXIA CN-SC LIGHTING PROTECTION Co.,Ltd. |