CN87210501U - High-tension switchgear testing apparatus - Google Patents
High-tension switchgear testing apparatus Download PDFInfo
- Publication number
- CN87210501U CN87210501U CN 87210501 CN87210501U CN87210501U CN 87210501 U CN87210501 U CN 87210501U CN 87210501 CN87210501 CN 87210501 CN 87210501 U CN87210501 U CN 87210501U CN 87210501 U CN87210501 U CN 87210501U
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- Prior art keywords
- voltage
- speed
- voltage switch
- loop
- tester
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Abstract
The utility model relates to high-tension switch technical parameter testing apparatus which is composed of a controllable direct-current voltage stabilizer which is arranged in a casing and a device for measuring speed, time and the action synchronicity of three phases. The utility model can be used for testing the starting voltage of opening and closing valve coils of high voltage switches with various voltage levels and testing the opening and closing speed and time parameters of 11KV A and 66KV high voltage switches and the action synchronicity of the three-phase moving contacts.
Description
The utility model belongs to electrical measurement, particularly measures the starting voltage of high-voltage switch gear, the tester of the folding time of dynamic/static contact and speed and three-phase synchronism.
At present to the measurement of high-voltage switch gear above-mentioned parameter by alternating-current switch, dc switch, voltage table, variable resistor, velometer, the same period pilot lamp, seven separate units of electrical secondmeter at the scene assembling temporarily carry out, one group of switch of every survey will be installed and removed testing apparatus once, and used testing apparatus volume weighs greatly, is not easy to carry.One group of data of every survey, switch will move 6～8 times at least.The method test work efficiency is low, and influences the mechanical life of switch.When carrying out the test that switch folding brake cable encloses moving voltage, in test loop, insert variable resistor.Because the resistance heating power, its resistance changes thereupon, has therefore influenced precision of test result.
The purpose of this utility model is a kind of starting voltage of high-voltage switch gear, the folding time of dynamic/static contact and tester of speed and three-phase synchronism measured of design.
The utility model by be installed in controlled direct-flow voltage stabilizer in the casing, test the speed, when surveying with survey three-phase synchronism device and be connected lead and form.
Describe in detail below in conjunction with accompanying drawing
Dotted portion is the wiring diagram of controlled direct-flow voltage stabilizer in the figure.It is made up of half-controlling bridged rectifier circuit, trigger circuit, feedback control circuit.
D
1, D
2, T
1, T
2Element for half-controlled bridge type.R
1, C
1, R
2, C
2Superpotential absorption protecting component for major component.The RD of alternating current source is the overflow protecting element of complete machine.C
3Wave filter for dc output end.Resistance R
3Be dead load, when output terminal is unloaded by R
3The certain electric current of conducting (thyristor keep electric current) makes thyristor in running order and be unlikely to turn-off major loop.
By unijunction transistor T
5, triode T
4T
3Form unijunction transistor trigger circuit with amplifying element.Diode D
8D
9Make amplifier tube T
3The forward protection of base loop, D
10Be reverse protection.By C
4With unijunction transistor T
5Produce trigger pulse, again by pulse transformer T
R2Transport to the silicon controlled control utmost point.Pulse transformer T
R2The diode D that the inferior utmost point connect
11D
12Making the trigger pip of delivering to the thyristor control utmost point is positive pulse, is beneficial to protect thyristor.By transformer T
R21, the 2 two ends input 50V alternating voltage of secondary is through D
3～D
6Rectification, R
5, stabilivolt D
Z1D
Z2Slicing provides the synchro source voltage of 20V trapezoidal wave for trigger circuit.By transformer T
R13, the 4 two ends input 30V alternating voltage of secondary is through D
13～D
16Rectification, C
6Filtering and R
10, D
Z3, D
Z4Form mu balanced circuit.Potentiometer R
W3Given voltage is provided, and changes the size of pilot angle α, to reach the purpose of regulating rectifier output voltage.R
9And C
5Form integrating circuit, guarantee that voltage is stable when start, and have the effect of filtering interference signals concurrently.
Feedback control circuit: potentiometer R
W1First half voltage V
FAnd R
W3First half voltage V
SReceive T with opposite polarity series connection
3B, e loop constitute clean input voltage V
IOForm the Voltage Series negative feedback.Promptly work as output voltage V
DODuring decline, V
FAlso descend thereupon.V
FWith V
SBe to constitute V with opposite polarity series connection
ISo, V
ITo rise.Pass through T
3, T
4, T
5To be added in T
1, T
2The trigger pulse reach of the control utmost point impels conduction angle to increase and makes V
DOGo up.Vice versa.
Among the figure dotted line outside for test the speed, when surveying and survey three-phase synchronous loop.
Test the speed the loop by two button A
1, A
2, the mutual relay J of locking
1, J
2Form with the velometer that links to each other with the joint that tests the speed.
The loop is by two button A during survey
1, A
2, the mutual relay J of locking
1, J
2, resistance R
11R
12Electric capacity G
7, G
8, coil Q and K switch are formed when surveying.
Survey the three-phase synchronous loop by power transformer T
R1Secondary 5,6 ends draw 6, the pilot lamp of 3V power supply and three different colours parallel with one another forms.
When surveying the starting voltage of high-voltage switch gear, will rotate potentiometer R then by test coil by on 102 107 137 contacts (jack behind the instrument) among the lead access figure
W3Knob output voltage is risen continuously steadily up to switch or closing relay starting, convenient like this and high-voltage switch gear that record the utmost point such as various voltages is exactly opened or the starting voltage of closing relay coil.
During survey, when testing the speed, by button A
1Or A
2Operate the relay J of mutual locking respectively
1Or J
2, make it connect J simultaneously
aJ
bDuring survey, the AC power and the J in the loop of testing the speed
cThe operating power of direct current 220V.When leaving or close a floodgate, measures by switch the time of opening or closing a floodgate and the speed parameter of switch reliably.Surveying one group of data switch only need move 3～4 times.
When speed and time are opened a sluice gate in survey, original velometer is connected on two contacts in the loop of testing the speed, the dynamic and static contact of high-voltage switch gear respectively when surveying opening in the loop,
Contact links.K switch is in opening.Press the button A then
1The time, J
1Action, contact J
1aJ
1bJ
1cClosure, the high-voltage switch gear tripping, velometer is subjected to electrical measurement must open a sluice gate speed.Because survey when opening a sluice gate, the original state of switch is closed, K switch is in off-state, and like this, the 220V alternating current is by opening contact through high-voltage switch gear extremely
, work as J
1bWhen closed, the coil Q that clocks work begins to clock, and when high-voltage switch gear disconnected, power supply was cut off, and the coil Q that clocks quits work, and finishes during survey.
When speed when survey closing a floodgate and time, the connection of velometer and circuit is the same, the dynamic/static contact of high-voltage switch gear closing in the loop during respectively with survey,
Contact links, and simultaneously, the K switch closure is when pressing the button A
2, relay J
2Action, J
2a, J
2b, J
2cClosure, the high-voltage switch gear closure, velometer is subjected to electrical measurement to go out closing speed.Simultaneously, the 220U alternating current by close,
Contact is to the dynamic/static contact of high-voltage switch gear.Because the original state of high-voltage switch gear disconnects, electric current is through the coil that clocks, resistance, electric capacity and J
2bThe loop stream mistake of forming, at this moment, the coil that clocks is started working.And after high-voltage switch gear closed a floodgate, the external circuit coil Q short circuit that will clock bore voltage by electric capacity and resistance, and the coil that clocks quits work, and closes a floodgate to finish when surveying.Simultaneously, can on electrical secondmeter, directly read out or closing time.
When surveying the three-phase synchronism, three moving (quiet) contacts of high-voltage switch gear are linked with pilot lamp respectively, three quiet (move) contacts are associated in together, in the access power supply.When the manual adjustment switch, can judge and adjust the action synchronism of high-voltage switch gear three-phase moving contact afterwards according to the luminous elder generation of the pilot lamp of three different colours.
All elements of tester are installed in the casing made of iron, and input, output line pick out at the phase layer jack of instrument rear panel.Casing appearance baking vanish, and add handle (double as support) and be easy to carry and operate.An end of line is a plug-type between tester and the high-voltage switch gear, and the other end is the chuck formula, and plug end is inserted in the jack of tester rear panel, and chuck end is clipped on the corresponding contact of terminal row of high-voltage switch gear mechanism.
Use this instrument can make things convenient for the starting voltage of promptly measuring high-voltage switch gear, speed and time that dynamic/static contact is opened or closed a floodgate, and the synchronism of three-phase moving contact action and survey one group of technical parameter need only the high-voltage switch gear action 3～4 times, reduce the action frequency of switch, improved the life-span of switch.
Accompanying drawing is the wiring diagram of this instrument, and the K that wherein surveys in the synchronous loop is tested high-voltage switch gear.
Claims (3)
1, a kind of high voltage switch tester, it comprises the controlled direct-flow voltage stabilizer that is installed in the casing, tests the speed, when surveying, survey the three-phase synchronous device and be connected lead, it is characterized in that:
(1) controlled direct-flow voltage stabilizer has the unijunction transistor trigger pulse loop of amplifying element by the half-controlling bridged rectifier loop, and feedback control loop is formed;
(2) speed measuring device is by button A
1, A
2, the mutual relay J of locking
1, J
2Form with the velometer that links to each other with the jack that tests the speed;
(3) Time Measurement Unit is by button A
1, A
2The mutual locking relay J that is attached thereto
1, J
2And electric capacity G
7, G
8, resistance R
11R
12The coil Q that clocks forms;
(4) surveying the three-phase synchronous device is made up of the pilot lamp of three different colours and the extension line jack on the instrument rear panel.
2,, it is characterized in that at thyristor one side of controlled direct-flow voltage stabilizer overvoltage protection element in parallel as the said high voltage switch tester of claim 1.
3, as the said high voltage switch tester of claim 1, it is characterized in that an end of line is a plug-type between tester and the high-voltage switch gear, the other end is the chuck formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87210501 CN87210501U (en) | 1987-08-22 | 1987-08-22 | High-tension switchgear testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87210501 CN87210501U (en) | 1987-08-22 | 1987-08-22 | High-tension switchgear testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87210501U true CN87210501U (en) | 1988-06-01 |
Family
ID=4825426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87210501 Withdrawn CN87210501U (en) | 1987-08-22 | 1987-08-22 | High-tension switchgear testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87210501U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389462A (en) * | 2013-08-05 | 2013-11-13 | 北京慧智神光科技有限公司 | Method for detecting closing and opening synchronism of high-voltage circuit breaker |
| CN105259501A (en) * | 2015-11-03 | 2016-01-20 | 平高集团有限公司 | High-voltage direct-current on-off experiment device |
| CN106018895A (en) * | 2016-06-02 | 2016-10-12 | 国网河南省电力公司洛阳供电公司 | Circuit breaker on-line tripping closing voltage tester voltage regulating device |
| CN106124977A (en) * | 2016-06-29 | 2016-11-16 | 南京国电南自电网自动化有限公司 | A kind of relay contact analog control system method based on virtual instrument |
| CN111142015A (en) * | 2018-11-06 | 2020-05-12 | 西门子股份公司 | Monitoring method and monitoring circuit for state of contact of switch device |
| CN113454475A (en) * | 2019-02-15 | 2021-09-28 | 西门子股份公司 | Method and apparatus for automatically inspecting switching device |
-
1987
- 1987-08-22 CN CN 87210501 patent/CN87210501U/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389462A (en) * | 2013-08-05 | 2013-11-13 | 北京慧智神光科技有限公司 | Method for detecting closing and opening synchronism of high-voltage circuit breaker |
| CN103389462B (en) * | 2013-08-05 | 2016-01-06 | 北京慧智神光科技有限公司 | The switching synchronization of primary cut-out and separating brake synchronism detection method |
| CN105259501A (en) * | 2015-11-03 | 2016-01-20 | 平高集团有限公司 | High-voltage direct-current on-off experiment device |
| CN106018895A (en) * | 2016-06-02 | 2016-10-12 | 国网河南省电力公司洛阳供电公司 | Circuit breaker on-line tripping closing voltage tester voltage regulating device |
| CN106124977A (en) * | 2016-06-29 | 2016-11-16 | 南京国电南自电网自动化有限公司 | A kind of relay contact analog control system method based on virtual instrument |
| CN111142015A (en) * | 2018-11-06 | 2020-05-12 | 西门子股份公司 | Monitoring method and monitoring circuit for state of contact of switch device |
| CN113454475A (en) * | 2019-02-15 | 2021-09-28 | 西门子股份公司 | Method and apparatus for automatically inspecting switching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |