CN207181555U - Zinc oxide arrester tester signal synchronous collection device - Google Patents
Zinc oxide arrester tester signal synchronous collection device Download PDFInfo
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- CN207181555U CN207181555U CN201721166859.5U CN201721166859U CN207181555U CN 207181555 U CN207181555 U CN 207181555U CN 201721166859 U CN201721166859 U CN 201721166859U CN 207181555 U CN207181555 U CN 207181555U
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- time service
- gps time
- oxide arrester
- service modules
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model discloses a kind of zinc oxide arrester tester signal synchronous collection device, include the Zinc-Oxide Arrester and bus-bar potential transformer for being connected to high voltage bus, current collecting device is connected with the Zinc-Oxide Arrester, voltage collecting device is connected with the bus-bar potential transformer, the first GPS time service modules are connected with the current collecting device, the first GPS time service modules are to current collecting device input clock signal, the 2nd GPS time service modules are connected with the bus-bar potential transformer, the clock signal that the 2nd GPS time service modules are synchronised to voltage collecting device input with the first GPS time service modules.The utility model has advantages below and effect：This programme utilizes novel circuit structure, pass through the setting of the first phase locked-loop unit, the second phase locked-loop unit and the first GPS time service modules, the 2nd GPS time service modules, realize the more precise synchronization between voltage data and current data and integer-period sampled, the accuracy of lifting Zinc-Oxide Arrester detection.
Description
Technical field
It the utility model is related to a kind of Zinc-Oxide Arrester detection field, more particularly to a kind of zinc oxide arrester tester
Signal synchronous collection device.
Background technology
Zinc-Oxide Arrester is widely used in power system, on the high voltage bus in the place such as transformer station, power plant
Lightning arrester is mostly Zinc-Oxide Arrester, and by Zinc-Oxide Arrester the electric equipment products in power system are played with protection and is made
With.Judge whether Zinc-Oxide Arrester performance is good, there are two methods at present, add high direct voltage to detect its feelings of leaking electricity first, having a power failure
Condition, its ac leakage situation is measured second, not having a power failure；And on-the-spot test is all the mode that do not have a power failure, by analyzing in leakage current
Resistive composition and capacitive composition differentiate the performance of Zinc-Oxide Arrester.
Carry out the leakage, it is necessary to Zinc-Oxide Arrester in order to which the resistive composition in leakage current and capacitive composition are decomposited
The phase of electric current and the busbar voltage being added on Zinc-Oxide Arrester measures.Due to measurement leakage current and measurement bus electricity
Pressure can not be separated by same place, the particularly position of some transformer stations measurement leakage current with measuring the position of busbar voltage
Hundreds of meters so that voltage data and current data are difficult to accurately synchronously, so as to cause that Zinc-Oxide Arrester can not be entered
Row accurately detects.
Utility model content
The purpose of this utility model, which is to provide one kind, can realize that voltage data is precisely synchronous with current data, so as to realize pair
Zinc oxide arrester tester signal synchronization acquisition system complete cycle that Zinc-Oxide Arrester is precisely detected.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of Zinc-Oxide Arrester
Tester signal synchronous acquisition device, include the Zinc-Oxide Arrester and bus-bar potential transformer for being connected to high voltage bus, institute
State and current collecting device is connected with Zinc-Oxide Arrester, voltage collecting device, institute are connected with the bus-bar potential transformer
State and the first GPS time service modules be connected with current collecting device, the first GPS time service modules to current collecting device input when
Clock signal, the 2nd GPS time service modules is connected with the bus-bar potential transformer, the 2nd GPS time service modules are adopted to voltage
Acquisition means input the clock signal being synchronised with the first GPS time service modules.
By using above-mentioned technical proposal, second signal is sent in the first GPS time service modules and is used for control electric current harvester
Caused current signal on Zinc-Oxide Arrester is acquired；Second signal is sent in 2nd GPS time service modules to be used to control electricity
Pressure harvester is acquired to caused voltage signal on bus-bar potential transformer, because GPS second signal is real by satellite
Now send, there is very high synchronization accuracy, general error was less than for 200 nanoseconds；So can realize voltage data and current data it
Between it is more synchronous, Zinc-Oxide Arrester is more accurately detected so as to realize.
It is further arranged to：The current collecting device includes the first phase locked-loop unit, the first described GPS time service moulds
Block is connected to the first phase locked-loop unit.
By using above-mentioned technical proposal, the second signal that the first GSP time service modules are sent is used to realize to the first phaselocked loop
The control of unit so that current collecting device can carry out the collection of complete cycle to caused leakage current on Zinc-Oxide Arrester,
To meet the calculating for higher hamonic wave, so as to further lift the accuracy of Zinc-Oxide Arrester detection.
It is further arranged to：The current collecting device includes current sensor, the first a/d conversion device, the first centre
Reason device and the first wireless transceiver terminal, the sampling probe of the current sensor are serially connected in the earth-return circuit of Zinc-Oxide Arrester
In, the input of the output end of the current sensor and the first phase locked-loop unit is electrically connected with, first phase locked-loop unit
It is connected by the first a/d conversion device with the input of the first central processing unit, the output end of first central processing unit and the
The input of one wireless transceiver terminal is electrically connected with.
By using above-mentioned technical proposal, current sensor is acquired for leakage current, is filled by the first AD conversion
Put and transmitted after converting analog signals into data signal into the first central processing unit, then by the first wireless transceiver terminal-pair at
Signal after reason is exported.
It is further arranged to：First phase locked-loop unit include the first phase-locked loop module and with the first phase-locked loop module
The first frequency divider being arranged in parallel, the first described GPS timing device modules are connected to the first phase-locked loop module, the first lock phase
Ring moulds block is arranged in series between current sensor and the first a/d conversion device.
By using above-mentioned technical proposal, the leakage current of current sensor collection is passed into the first phase-locked loop module, the
The second signal that one GPS time service modules are sent is used to control the first phase-locked loop module locking leakage current to carry out collection complete cycle；The
Leakage current on one phase-locked loop module is output to the first a/d conversion device after the amplification of the first frequency divider, so as to realize pair
The integer-period sampled and synchronized sampling of leakage current.
It is further arranged to：The voltage collecting device includes the second phase locked-loop unit, the 2nd described GPS time service moulds
Block is connected to the second phase locked-loop unit.
By using above-mentioned technical proposal, the second signal that the 2nd GSP time service modules are sent is used to realize to the second phaselocked loop
The control of unit so that voltage collecting device can carry out the collection of complete cycle to caused voltage on bus-bar potential transformer.
It is further arranged to：The voltage collecting device includes voltage sensor, the second a/d conversion device, the second centre
Reason device and the second wireless transceiver terminal, the sampling probe of the voltage sensor are serially connected in bus-bar potential transformer secondary side
In, the 2nd GPS time service modules are connected with voltage sensor, the output end of the voltage sensor and the second phase locked-loop unit
Input is electrically connected with, and second phase locked-loop unit passes through the second a/d conversion device and the input phase of the second central processing unit
Even, the input of the output end of second central processing unit and the second wireless transceiver terminal is electrically connected with.
By using above-mentioned technical proposal, the 2nd GPS time service modules are entered for control voltage sensor for voltage signal
Row collection, is converted analog signals into after data signal by the second a/d conversion device and transmitted into the second central processing unit, then led to
The signal crossed after the processing of the second wireless transceiver terminal-pair is exported.
It is further arranged to：Second phase locked-loop unit include the second phase-locked loop module and with the second phase-locked loop module
The second frequency divider being arranged in parallel, the 2nd described GPS time service modules are connected to the second phase-locked loop module, second phaselocked loop
Block coupled in series is arranged between voltage sensor and the second a/d conversion device.
By using above-mentioned technical proposal, the voltage of voltage sensor collection is passed into the second phase-locked loop module, the 2nd GPS
The second signal that time service module is sent is used to control the second phase-locked loop module latch voltage to carry out collection complete cycle；Second phaselocked loop mould
Voltage on block is output to the second a/d conversion device after the amplification of the second frequency divider, so as to realize that the complete cycle to voltage adopts
Sample and synchronized sampling.
It is further arranged to：The first wireless transceiver terminal is connected with together with the second equal signal of wireless transceiver terminal
One wireless transceiver master station.
By using above-mentioned technical proposal, the signal of the first wireless transceiver terminal and the output of the second wireless transceiver terminal
By being wirelessly transmitted to wireless transceiver master station.
In summary, the utility model has the advantages that：Pass through the first GPS time service modules and the 2nd GPS time services
The setting of module, realizes the more precise synchronization between voltage data and current data, and lifting Zinc-Oxide Arrester detects accurate
Property；And collection complete cycle and amplification are carried out to leakage current by the setting of the first phase locked-loop unit and the second phase locked-loop unit,
Harmonic wave can be calculated, so as to further lift the accuracy of Zinc-Oxide Arrester detection.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic diagram that the utility model realizes collection complete cycle.
In figure：1st, high voltage bus；2nd, Zinc-Oxide Arrester；3rd, bus-bar potential transformer；4th, current collecting device；4.1st, it is electric
Flow sensor；4.2nd, the first a/d conversion device；4.3rd, the first central processing unit；4.4th, the first wireless transceiver terminal；4.5th,
One phase locked-loop unit；4.51st, the first phase-locked loop module；4.52nd, the first frequency divider；5th, voltage collecting device；5.1st, voltage sensor
Device；5.2nd, the second a/d conversion device；5.3rd, the second central processing unit；5.4th, the second wireless transceiver terminal；5.5th, the second lock phase
Ring element；5.51st, the second phase-locked loop module；5.52nd, the second frequency divider；6th, the first GPS time service modules；7th, the 2nd GPS time service moulds
Block；8th, wireless transceiver master station.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
With reference to figure 1 and Fig. 2, a kind of zinc oxide arrester tester signal synchronous collection device, including high voltage bus 1, it is high
Zinc-Oxide Arrester 2 is connected with pressure bus 1, one end and the high voltage bus 1 of Zinc-Oxide Arrester 2 are electrically connected with, on the other end
It is electrically connected with current collecting device 4.It is connected with bus-bar potential transformer 3 on high voltage bus 1, the one of bus-bar potential transformer 3
Secondary side is electrically connected with high voltage bus 1, electrical on secondary side (i.e. secondary winding side, similarly, primary side refer to first winding side)
It is connected with voltage collecting device 5.Current collecting device 4 in the utility model is existing commercially available current collecting device, is existing
There is technology, concrete principle does not do excessive elaboration herein；Voltage collecting device 5 in the utility model is adopted for existing commercially available voltage
Acquisition means, are prior art, and concrete principle does not do excessive elaboration herein.
Current collecting device 4 includes current sensor 4.1, the first a/d conversion device 4.2, the first central processing unit 4.3, the
One wireless transceiver terminal 4.4 and the first phase locked-loop unit 4.5；First phase locked-loop unit 4.5 includes the first phase-locked loop module
4.51 and the first frequency divider 4.52 for being arranged in parallel on the first phase-locked loop module 4.51, the sampling of current sensor 4.1 visit
Head is serially connected in the earth-return circuit of Zinc-Oxide Arrester 2, the output end of current sensor 4.1 and the first phase-locked loop module 4.51
The input electric connection of input electric connection, the output end of the first phase-locked loop module 4.51 and the first a/d conversion device 4.2,
The output end of first a/d conversion device 4.2 and the input of the first central processing unit 4.3 are electrically connected with, the first central processing unit
The input of 4.3 output end and the first wireless transceiver terminal 4.4 is electrically connected with.First GPS time service modules 6 and the first lock phase
Ring moulds block 4.51 is connected.
Voltage collecting device 5 includes voltage sensor 5.1, the second a/d conversion device 5.2, the second central processing unit 5.3, the
Two wireless transceiver terminals 5.4 and the second phase locked-loop unit 5.5；Second phase locked-loop unit 5.5 includes the second phase-locked loop module
5.51 and the second frequency divider 5.52 for being arranged in parallel on the second phase-locked loop module 5.51, the sampling of voltage sensor 5.1 visit
Head is serially connected in the secondary survey of bus-bar potential transformer 3, the output end of voltage sensor 5.1 and the second phase-locked loop module 5.51
The input electric connection of input electric connection, the output end of the second phase-locked loop module 5.51 and the second a/d conversion device 5.2,
The output end of second a/d conversion device 5.2 and the input of the second central processing unit 5.3 are electrically connected with, the second central processing unit
The input of 5.3 output end and the second wireless transceiver terminal 5.4 is electrically connected with.2nd GPS time service modules 7 and the second lock phase
Ring moulds block 5.51 is connected.First wireless transceiver terminal 4.4 is connected with same with the second wireless transceiver terminal 5.4 by signal
Individual wireless transceiver master station 8.
Transmitting procedure：The current signal that Zinc-Oxide Arrester 2 exports is inputted into the first phaselocked loop mould by current sensor 4
Block 4.51, the first GPS time service modules 6 send second signal and carry out collection complete cycle, the first phase-locked loop module 4.51 to leakage current
Another input signal divides for the output signal of the first phase-locked loop module 4.51, when the first phase-locked loop module 4.51 is fixed
When, the output frequency of the first frequency divider 4.52 will be consistent with leakage current frequency.First phase-locked loop module 4.51 will be with leakage current
N times of signal frequency exports (f2=f1/N), and N is that the first frequency divider 4.52 divides multiple, the first phase-locked loop module 4.51 output letter
The collection of number control data, realize the integer-period sampled and synchronized sampling of leakage current.The voltage exported on bus-bar potential transformer 3
Signal is transmitted into voltage collecting device 5, and integer-period sampled and synchronized sampling is carried out to voltage by above-mentioned same way.Pass through
One wireless transceiver terminal 4.4 and the second wireless transceiver terminal 5.4 transfer signals to wireless receipts in a manner of being wirelessly transferred
Fa Qi master stations 8.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (8)
1. a kind of zinc oxide arrester tester signal synchronous collection device, includes the zinc oxide for being connected to high voltage bus (1)
Arrester (2) and bus-bar potential transformer (3), it is characterised in that：Current acquisition dress is connected with the Zinc-Oxide Arrester (2)
Put (4), voltage collecting device (5) is connected with the bus-bar potential transformer (3), is connected on the current collecting device (4)
There are a first GPS time service modules (6), the first GPS time service modules (6) are described to current collecting device (4) input clock signal
It is connected with the 2nd GPS time service modules (7) on bus-bar potential transformer (3), the 2nd GPS time service modules (7) are to voltage acquisition
Device (5) inputs the clock signal being synchronised with the first GPS time service modules (6).
2. zinc oxide arrester tester signal synchronous collection device according to claim 1, it is characterised in that：The electricity
Stream harvester (4) includes the first phase locked-loop unit (4.5), and the first described GPS time service modules (6) are connected to the first lock phase
Ring element (4.5).
3. zinc oxide arrester tester signal synchronous collection device according to claim 2, it is characterised in that：The electricity
Flowing harvester (4) includes current sensor (4.1), the first a/d conversion device (4.2), the first central processing unit (4.3) and the
One wireless transceiver terminal (4.4), the sampling probe of the current sensor (4.1) are serially connected in connecing for Zinc-Oxide Arrester (2)
In earth-return, output end and the first phase locked-loop unit (4.5) input of the current sensor (4.1) are electrically connected with, described
First phase locked-loop unit (4.5) is connected by the first a/d conversion device (4.2) with the input of the first central processing unit (4.3),
The input of the output end of first central processing unit (4.3) and the first wireless transceiver terminal (4.4) is electrically connected with.
4. zinc oxide arrester tester signal synchronous collection device according to claim 3, it is characterised in that：Described
One phase locked-loop unit (4.5) includes the first phase-locked loop module (4.51) and is arranged in parallel with the first phase-locked loop module (4.51)
First frequency divider (4.52), the first described GPS time service modules (6) are connected to the first phase-locked loop module (4.51), and described first
Phase-locked loop module (4.51) is arranged in series between current sensor (4.1) and the first a/d conversion device (4.2).
5. zinc oxide arrester tester signal synchronous collection device according to claim 3, it is characterised in that：The electricity
Pressure harvester (5) includes the second phase locked-loop unit (5.5), and the 2nd described GPS time service modules (7) are connected to the second lock phase
Ring element (5.5).
6. zinc oxide arrester tester signal synchronous collection device according to claim 5, it is characterised in that：The electricity
Harvester (5) is pressed to include voltage sensor (5.1), the second a/d conversion device (5.2), the second central processing unit (5.3) and the
Two wireless transceiver terminals (5.4), the sampling probe of the voltage sensor (5.1) are serially connected in bus-bar potential transformer (3) two
In secondary side, the output end of the voltage sensor (5.1) is electrically connected with the second phase locked-loop unit (5.5) input, and described the
Two phase locked-loop units (5.5) are connected by the second a/d conversion device (5.2) with the input of the second central processing unit (5.3), institute
The input of the output end and the second wireless transceiver terminal (5.4) of stating the second central processing unit (5.3) is electrically connected with.
7. zinc oxide arrester tester signal synchronous collection device according to claim 6, it is characterised in that：Described
Two phase locked-loop units (5.5) include the second phase-locked loop module (5.51) and are arranged in parallel with the second phase-locked loop module (5.51)
Second frequency divider (5.52), the 2nd described GPS time service modules (7) are connected to the second phase-locked loop module (5.51), and described second
Phase-locked loop module (5.51) is arranged in series between voltage sensor (5.1) and the second a/d conversion device (5.2).
8. zinc oxide arrester tester signal synchronous collection device according to claim 6, it is characterised in that：Described
It is total that one wireless transceiver terminal (4.4) and the second wireless transceiver terminal (5.4) signal are connected with same wireless transceiver
Stand (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721166859.5U CN207181555U (en) | 2017-09-12 | 2017-09-12 | Zinc oxide arrester tester signal synchronous collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721166859.5U CN207181555U (en) | 2017-09-12 | 2017-09-12 | Zinc oxide arrester tester signal synchronous collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207181555U true CN207181555U (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721166859.5U Expired - Fee Related CN207181555U (en) | 2017-09-12 | 2017-09-12 | Zinc oxide arrester tester signal synchronous collection device |
Country Status (1)
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| CN (1) | CN207181555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044935A (en) * | 2019-12-31 | 2020-04-21 | 苏州华电电气股份有限公司 | Multipoint grounding live detection device for transformer core |
-
2017
- 2017-09-12 CN CN201721166859.5U patent/CN207181555U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044935A (en) * | 2019-12-31 | 2020-04-21 | 苏州华电电气股份有限公司 | Multipoint grounding live detection device for transformer core |
| CN111044935B (en) * | 2019-12-31 | 2022-06-21 | 苏州华电电气股份有限公司 | Multipoint grounding live detection device for transformer core |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20190912 |