CN106154194A - AC type spark gap on-Line Monitor Device detector - Google Patents
AC type spark gap on-Line Monitor Device detector Download PDFInfo
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- CN106154194A CN106154194A CN201510124222.9A CN201510124222A CN106154194A CN 106154194 A CN106154194 A CN 106154194A CN 201510124222 A CN201510124222 A CN 201510124222A CN 106154194 A CN106154194 A CN 106154194A
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- milliammeter
- spark gap
- monitor device
- line monitor
- switch
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Abstract
The present invention relates to a kind of AC type spark gap on-Line Monitor Device detector, for the detection of spark gap on-Line Monitor Device.This detector uses alternating current power supply, is made up of power pack, enumerator calibrating part, milliammeter calibrating part, and power pack is supplied by civil power AC220V, and element has exchange AV220V/AC28V instrument transformator, AV220V/DC9V rectifier power source；Enumerator calibrating part is formed testing circuit by 1000V megameter, double-throw switch, capacitor, spark gap on-Line Monitor Device；Milliammeter calibrating part is formed testing circuit by numerical monitor milliammeter, spark gap on-Line Monitor Device, carbon-film potentiometer.This detector solves the difficult problem not having instrumentation that spark gap on-Line Monitor Device can carry out all round properties detection before this, has simple in construction, easy to operate, it is simple to production scene is carried, safety coefficient advantages of higher.
Description
Technical field
The present invention relates to the performance detection of the detecting instrument of a kind of electrical monitoring device, specifically spark gap on-Line Monitor Device
Instrument.
Background technology
Spark gap is one of important power equipment of power system, is widely used in transformer station and electric line.
In order to monitor the health status of spark gap, the most supporting on-Line Monitor Device being provided with spark gap, its operation principle is:
Under normal working voltage, measured the change of lightning arrester leakance by milliammeter, when flowing through powerful action current, will
Being transferred to counter loop from leakage current measurement loop, action current produces an electricity by the high temperature resistance within counter loop
Pressure drop, this voltage drop is charged to internal capacitance through over commutation, by electric capacity to electromagnetic counter inductive discharge, in realizing
Portion's electromagnetic counter action.
This on-Line Monitor Device, in a pre-installation or run after a period of time, needs to detect its performance, to guarantee that it is monitored
The accuracy of result and reliability, it is simple to get rid of hidden danger in time, it is to avoid the generation of accident.
Traditional method carry out spark gap on-Line Monitor Device counter loop detection, its circuit as shown in Figure 1: use 630V6uF
Capacitor, two Low voltage knife switches, the components and parts (loose mail) such as 1000V megameter complete, and utilize 1000V megameter, pass through
Electric capacity is charged, with relief capacitor, spark gap on-Line Monitor Device is carried out impulsive discharge so that enumerator stepping is moved
Make.The shortcoming of the method is: the most naked leakage of high tension loop, uses two plug-in strip operations, poor stability.
The milliammeter detection of the spark gap on-Line Monitor Device of traditional method, has two kinds of methods.Method one, such as Fig. 2-1, Fig. 2-2
Shown (as a example by 35000V spark gap), (dissipates with components and parts such as testing transformer, spark gap, lightning arrester block property current testers
Part) complete: it is to add a working voltage to spark gap working voltage with testing transformer, reads its leakage current；Then by spark gap
Testing current in resistance property instrument is linked into spark gap on-Line Monitor Device two ends, records standard leakage current, compares, and determines that it leaks electricity
Stream milliammeter accuracy；Method two, as Figure 2-3 (as a example by 35000V spark gap), with testing transformer, spark gap,
The components and parts (loose mail) such as received pointer formula milliammeter complete: be to add a working voltage with testing transformer to run electricity to spark gap
Pressure, connects standard milliammeter and spark gap on-Line Monitor Device, reads leakage current milliammeter electricity in spark gap on-Line Monitor Device
Stream and standard milliammeter electric current, compare, determine its leakage current milliammeter accuracy.The method is due to testing transformer harmonic wave
Component is more, and the error brought to milliammeter reading is bigger；Additionally, due to the alternating voltage higher than working voltage can not be added, therefore
Milliammeter can not be carried out FR verification；Detection spark gap on-Line Monitor Device acting characteristic and its milliammeter reading accuracy,
Need to use the loose mails such as capacitor, megameter, plug-in strip, test lead, testing transformer, lightning arrester block property current tester to enter
Row operation, brings inconvenience to test, but also high pressure to be applied, therefore poor stability.
Summary of the invention
It is an object of the invention to, overcome the deficiency of traditional detection method, it is provided that spark gap on-Line Monitor Device can be carried out by one
All round properties detects, and detects accurate, easy and simple to handle, high safety, novel AC type detecting instrument easy to carry.
The present invention is achieved in that
This detector uses alternating current power supply；It is made up of power pack 1, milliammeter part 2, counter portion 3；
Described power pack 1, obtains exchanging AC28V50Hz electricity by AC220V/AC28V50Hz instrument transformator
Pressure, obtains direct current DC9V voltage by AC220V/DC9V rectifier power source；
This power pack 1, the numerical monitor milliammeter that its civil power AC220V introduced is milliammeter part 2 provides numerical monitor
Power supply；Its AC28V alternating current produced, the milliampere gauge outfit measure loop for milliammeter part 2 provides power supply；It produces
DC9V, the megameter for counter portion 3 provides DC source；
Described milliammeter part 2, including pressure regulation potentiometer, numerical monitor milliammeter, instrument terminal A1X1, A1X1 by outward
Portion is connected to spark gap on-Line Monitor Device, constitutes series loop.
Described counter portion 3, including megameter, double-throw switch, capacitor, instrument terminal AX；This double-throw switch is six ends
Son three position double-throw switches, the open position of six terminal three position double-throw switches connects capacitor；Six terminal three position double-throw switches
The charge position of side, connects megameter high-voltage output end, and spark gap on-Line Monitor Device detector provides megameter power supply, double-throw
Switch, at charge position, can be charged to capacitor by megameter；The discharge position of six terminal three position double-throw switch opposite sides,
The instrument terminal AX, AX connected spark gap on-Line Monitor Device by external connection.If instrument internal capacitor is substituted the bad for the good
Electricity, spark gap on-Line Monitor Device, in this position, is discharged by capacitor, can be made spark gap on-Line Monitor Device by double-throw switch
In counter action.This circuit relatively traditional method, by connecting, two plug-in strips change double-throw switch into, and components and parts are concentrated on instrument
In device case, farthest avoiding terminal and expose, the safety coefficient that operates is high.
The loose mail detection mode that this detector is more traditional, detects function more comprehensively, more accurately, and simple in construction, easy to operate, by
In not having high tension loop, therefore safety coefficient is high.
The using method of this AC type spark gap on-Line Monitor Device detector is as follows:
1) spark gap on-line equipment counter action function is first tested: by spark gap on-Line Monitor Device two ends on line to this instrument
On the binding post AX of device；Open total power switch and megameter on and off switch, megameter is put to 1000V gear, will be double
Throw switch to throw to charge position to capacitor charging, when megameter reaches 5-10M Ω, double-throw switch is switched to " electric discharge "
Position, once, microampere indicator swings counter action simultaneously；
2) repeating the process 5 times of above-mentioned 1, each action is normal, i.e. can determine that tally function is qualified；
3) it is completed, closes milliammeter on and off switch and megameter on and off switch, double-throw switch is thrown to " disconnection " position,
Capacitor and megameter, spark gap on-Line Monitor Device are disconnected, to guarantee safety；
4) spark gap on-line equipment milliammeter accuracy situation is then tested, it is ensured that double-throw switch is thrown to " disconnection " position；
5) spark gap on-Line Monitor Device two ends are linked on the binding post A1X1 of this instrument, check that potentiometer is in " zero " position
Put, open total power switch and milliammeter on and off switch, regulator potentiometer, choose 5 points, verification on-Line Monitor Device and basis
Standard of instruments milliammeter reading, calculates the deviation of each monitoring point: be respectively less than 10%, i.e. can determine that on-line equipment milliammeter
Qualified；Otherwise, it is determined that on-Line Monitor Device is defective.
6) it is completed, closes milliammeter on and off switch and total power switch.
Accompanying drawing explanation
Fig. 1. the circuit diagram of the employing components and parts detection spark gap on-line monitoring Counter of prior art
Milliammeter detection method one circuit of the detection device of the components and parts detection spark gap on-line monitoring of Fig. 2-1. prior art shows
One of it is intended to
Milliammeter detection method one circuit of the detection device of the components and parts detection spark gap on-line monitoring of Fig. 2-2. prior art shows
The two of intention
Method two circuit structure of the milliammeter detection method of spark gap on-Line Monitor Device is shown by the components and parts of Fig. 2-3. prior art
It is intended to
Fig. 3. the detection device detector circuit theory diagrams of the AC type spark gap on-line monitoring of the present invention
Fig. 4. the power pack circuit diagram of the detection device detector of the AC type spark gap on-line monitoring of the embodiment of the present invention
Fig. 5. the milliammeter partial circuit signal of the detection device detector of the AC type spark gap on-line monitoring of the embodiment of the present invention
Figure
Fig. 6. the counter unit parallel circuit signal of the detection device detector of the AC type spark gap on-line monitoring of the embodiment of the present invention
Figure
Detailed description of the invention
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment one AC type spark gap on-Line Monitor Device detector
The integrated circuit principle of this AC type spark gap on-Line Monitor Device detector is as shown in Figure 3:
This detector is mainly by power pack 1 (as shown in Figure 4), milliammeter calibrating part 2 (as shown in Figure 5), counting
Device calibrating part 3 (as shown in Figure 6) composition.Including: AC220V power supply introducing portion, AC220V/DC9V rectification
Device；AC220V/AC28V60W instrument transformator, 1000V megameter, six terminal three position double-throw switches, 330K,
150K carbon film pressure regulation potentiometer, instrument internal calibrating milliammeter is that 20mA0.2 level exchanges three Semi-digital display milliammeters
(numerical monitor supply voltage AC90-240V), on and off switch, insurance base etc. used by instrument.
Supply voltage has 3 kinds: numerical monitor milliammeter numerical monitor power supply, AC220V alternating current pass through total power switch
Deliver to milliammeter on and off switch, directly obtain AC220V power supply from milliammeter on and off switch；Milliammeter measure loop
AC28V50Hz power supply, is delivered to AC220V/AC28V instrument transformator by milliammeter on and off switch, is used from instrument by blood pressure lowering
Inducer for line outlet end of transformer obtains；Needed for 1000V megameter, DC9V power supply, is delivered to megameter by AC220V by total power switch
On and off switch, is delivered to AC220V/DC9V rectifier power source by megameter on and off switch and obtains.
AC type spark gap on-Line Monitor Device detector milliammeter measure loop (as shown in Figure 5), by numerical monitor milliampere
In table, 330K and 150k carbon film pressure regulation potentiometer (potentiometer back to zero, i.e. resistance maximum position), spark gap on-Line Monitor Device
Portion's leakage current milliammeter composition series loop, is connected in the power supply of AC28V.Open total power switch, open milliammeter power supply
Switch, checks that two pieces of milliammeter readings are zero, and its resistance is progressively diminished by regulator potentiometer, takes the reading of 5-6 point, contrast
Two milliammeter readings, with numerical monitor milliammeter as standard, the error of the milliammeter of calculating spark gap on-Line Monitor Device: error
In the range of 10%, it is determined that the milliammeter of spark gap on-Line Monitor Device is qualified, otherwise judge that it is defective.
The measure loop (as shown in Figure 6) of AC type spark gap on-Line Monitor Device detector enumerator, opens main power and opens
Closing, open megameter on and off switch, megameter is put to 1000V gear, and double-throw switch is thrown to charge position to 630V6uF
Capacitor charges, and double-throw switch, when megameter reaches 5-10M Ω, is switched to " electric discharge " position, counter action, together
Time milliampere indicator swing.Repeat said process 5 times.Action is normal every time, i.e. can determine that tally function is qualified, otherwise judges it
Defective.It is completed, double-throw switch is thrown to " disconnection " position (centre position).
Claims (2)
1. AC type spark gap on-Line Monitor Device detector, it is characterised in that: use alternating current power supply；By power pack
(1), milliammeter part (2), counter portion (3) are constituted；
Described power pack (1), obtains exchanging AC28V50Hz electricity by AC220V/AC28V50Hz instrument transformator
Pressure, obtains direct current DC9V voltage by AC220V/DC9V rectifier power source；
This power pack (1), its numerical monitor milliammeter that civil power AC220V is milliammeter part (2) introduced provides
Numerical monitor power supply；Its AC28V alternating current produced, the milliammeter measure loop for milliammeter part (2) provides power supply；
Its DC9V produced, the megameter for counter portion (3) provides DC source；
Described milliammeter part (2), including pressure regulation potentiometer, numerical monitor milliammeter, spark gap on-Line Monitor Device constitutes string
Connection loop；
Described counter portion (3), including megameter, double-throw switch, capacitor, spark gap on-Line Monitor Device；This double-throw
Switch is six terminal three position double-throw switches, and the open position of six terminal three position double-throw switches connects capacitor；Six terminals three
Put the charge position of double-throw switch side, connect megameter high-voltage output end, charged to capacitor by megameter；Six terminals three
Put the discharge position of double-throw switch opposite side, connect spark gap on-Line Monitor Device.
2. the using method of AC type spark gap on-Line Monitor Device detector, it is characterised in that its method step is as follows:
1) spark gap on-line equipment counter action function is first tested: by spark gap on-Line Monitor Device two ends on line to this instrument
On the binding post (AX) of device；Open total power switch and megameter on and off switch, megameter is put to 1000V gear, will be double
Throw switch to throw to charge position to capacitor charging, when megameter reaches 5-10M Ω, double-throw switch is switched to " electric discharge "
Position, once, microampere indicator swings counter action simultaneously；
2) repeating the process 5 times of above-mentioned 1, each action is normal, i.e. can determine that tally function is qualified；
3) it is completed, closes milliammeter on and off switch and megameter on and off switch, double-throw switch is thrown to " disconnection " position,
Capacitor and megameter, spark gap on-Line Monitor Device are disconnected, to guarantee safety；
4) spark gap on-line equipment milliammeter accuracy situation is then tested, it is ensured that double-throw switch is thrown to " disconnection " position；
5) spark gap on-Line Monitor Device two ends are linked on the binding post A1X1 of this instrument, check that potentiometer is in " zero " position
Put, open total power switch and milliammeter on and off switch, regulator potentiometer, choose 5 points, verification on-Line Monitor Device and basis
Standard of instruments milliammeter reading, calculates the deviation of each monitoring point: be respectively less than 10%, i.e. can determine that on-line equipment milliammeter
Qualified；Otherwise, it is determined that on-Line Monitor Device is defective.
6) it is completed, closes milliammeter on and off switch and total power switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510124222.9A CN106154194A (en) | 2015-03-23 | 2015-03-23 | AC type spark gap on-Line Monitor Device detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510124222.9A CN106154194A (en) | 2015-03-23 | 2015-03-23 | AC type spark gap on-Line Monitor Device detector |
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| Publication Number | Publication Date |
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| CN106154194A true CN106154194A (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510124222.9A Pending CN106154194A (en) | 2015-03-23 | 2015-03-23 | AC type spark gap on-Line Monitor Device detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132452A (en) * | 2017-06-19 | 2017-09-05 | 国网甘肃省电力公司白银供电公司 | Instrument for testing polarity of current transformer |
| CN114002635A (en) * | 2021-11-15 | 2022-02-01 | 广东电网有限责任公司江门供电局 | Supplementary detection device of arrester counter |
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| CN201156065Y (en) * | 2007-12-04 | 2008-11-26 | 浙江省送变电工程公司 | Comprehensive test instrument of on-line monitoring instrument for lightning arrester |
| CN201311488Y (en) * | 2009-03-02 | 2009-09-16 | 南京卓实电气有限责任公司 | Check meter of arrester leakage current and action recorder |
| CN101587176A (en) * | 2009-06-17 | 2009-11-25 | 河南省电力公司商丘供电公司 | Instrument for lightning arrester monitor test |
| CN201662616U (en) * | 2010-02-10 | 2010-12-01 | 桐庐县供电局 | Online monitor ammeter calibration device of lightning arrester |
| CN103389433A (en) * | 2013-08-19 | 2013-11-13 | 国家电网公司 | Arrester detecting device |
| CN204166118U (en) * | 2014-10-11 | 2015-02-18 | 广东电网公司江门供电局 | A kind of lightning arrester on-line computing model performance calibration equipment on the spot |
| CN204439819U (en) * | 2015-03-23 | 2015-07-01 | 国网甘肃省电力公司白银供电公司 | AC type lightning arrester on-Line Monitor Device detector |
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2015
- 2015-03-23 CN CN201510124222.9A patent/CN106154194A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201156065Y (en) * | 2007-12-04 | 2008-11-26 | 浙江省送变电工程公司 | Comprehensive test instrument of on-line monitoring instrument for lightning arrester |
| CN201311488Y (en) * | 2009-03-02 | 2009-09-16 | 南京卓实电气有限责任公司 | Check meter of arrester leakage current and action recorder |
| CN101587176A (en) * | 2009-06-17 | 2009-11-25 | 河南省电力公司商丘供电公司 | Instrument for lightning arrester monitor test |
| CN201662616U (en) * | 2010-02-10 | 2010-12-01 | 桐庐县供电局 | Online monitor ammeter calibration device of lightning arrester |
| CN103389433A (en) * | 2013-08-19 | 2013-11-13 | 国家电网公司 | Arrester detecting device |
| CN204166118U (en) * | 2014-10-11 | 2015-02-18 | 广东电网公司江门供电局 | A kind of lightning arrester on-line computing model performance calibration equipment on the spot |
| CN204439819U (en) * | 2015-03-23 | 2015-07-01 | 国网甘肃省电力公司白银供电公司 | AC type lightning arrester on-Line Monitor Device detector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132452A (en) * | 2017-06-19 | 2017-09-05 | 国网甘肃省电力公司白银供电公司 | Instrument for testing polarity of current transformer |
| CN114002635A (en) * | 2021-11-15 | 2022-02-01 | 广东电网有限责任公司江门供电局 | Supplementary detection device of arrester counter |
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Application publication date: 20161123 |
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