CN107643505A - 110kV current transformer integrated form polarity test devices - Google Patents
110kV current transformer integrated form polarity test devices Download PDFInfo
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- CN107643505A CN107643505A CN201710941923.0A CN201710941923A CN107643505A CN 107643505 A CN107643505 A CN 107643505A CN 201710941923 A CN201710941923 A CN 201710941923A CN 107643505 A CN107643505 A CN 107643505A
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- display module
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- current transformer
- measurement display
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Abstract
The invention belongs to power industry technical field of test equipment, more particularly to 110kV current transformer integrated form polarity test devices, current transformer polarity testing test efficiency is low solving in the prior art, the technical problem of instrument not Portable belt.Including：Test panel, power module, mechanical winder and measurement display module are set in casing；Winder line inlet port p-wire is connected with power module, and line outlet p-wire electrically connects with current transformer primary side；Measurement display module electrically connects with Current Transformer Secondary side；Power module, including：Tie point, the second branch road and the 3rd branch road parallel with one another；Display module is measured, including：First measurement display module, the second measurement display module and the 3rd measurement display module；Three measurement display modules include indicator lamp, ammeter and buzzer；Indicator lamp, ammeter and buzzer are arranged in parallel.Compared with prior art, the present invention improves test efficiency, and the portability of device.
Description
Technical field
The invention belongs to power industry testing equipment field, more particularly to a kind of 110kV current transformers integrated form polarity
Test device.
Background technology
The polarity test experiment of 110kV current transformers, being in transformer station newly puts into operation the work such as examination and overhaul must not
Whether the work that can lack, the polarity the purpose is to test Current Transformer Secondary side meet the requirement protected, measure, measured, if
Current Transformer Secondary side winding polarity can then cause the consequences such as protection device malfunction and measuring error into reversed polarity.At present
Current transformer polarity testing is more with the following method：Primary side, an operating personnel with a hand self-contained battery and test wire,
Another hand carries out intermittent power supply, and secondary side, another one operating personnel is at terminal box by ammeter string to current transformer
In winding, the direction of rotation of ammeter pointer is observed.If ammeter pointer turns clockwise, for positive polarity, counterclockwise, then for
Reversed polarity.
, it is necessary to which test wire is deployed before on-test, test wire is connected to current transformer by testing line bar one
Secondary side winding, it is necessary to which the test wire of all expansion is retractd after off-test, the expansion of traditional experiment line and retracting are by work
Industry personnel manual operations is completed, and retracts process typically by the way of artificial winding, if operating personnel retracts the skilled of test wire
Degree is relatively low, is easily caused test wire expansion and the retracting process used time is longer, reduce the efficiency of experiment.
During experiment, one side operating personnel is needed to wear insulating glove, and dry cell can not be secured firmly in hand so that
When intermittence is powered, loose contact is easily caused so that experiment is repeated, and reduces test efficiency；On the other hand, dry cell
Electricity can not be shown, it is impossible to it is determined that whether the electricity of battery used meets onsite application requirement, if not meeting, at the trial could
It was found that satisfactory battery need to be re-replaced again, cause battery time longer, also reduce test efficiency；It is meanwhile dry
Battery can not be reused, and environmental pollution is also resulted in after discarded；
During experiment, operating personnel can only by the swaying direction verificating current transformer secondary side of ammeter pointer around
The wiring polarity of group, in order to ensure the accuracy of test result, the beat of pointer direction of ammeter must be at least twice to same
Direction is swung, and just can determine that result of the test；And under existing test mode, once can only be to the one of the every phase secondary side of current transformer
Individual winding (protection, measurement or metering) measures.And existing test instrument disperses, not Portable belt and use.
In summary, existing current transformer polarity testing test efficiency is low, used tool not Portable belt and use, because
This, needs a kind of new polarity testing device of current transformer badly.
The content of the invention
110kV current transformer polarity testings test efficiency is low to solve in the prior art, the skill of instrument not Portable belt
Art problem, the present invention provide a kind of 110kV current transformers integrated form polarity test device, to improve experiment used tool just
The property taken, improve test efficiency.
In order to solve the above technical problems, 110kV current transformers integrated form polarity test device provided by the invention, bag
Include：Casing, case lid is set thereon；Test panel, power module, mechanical winder and measurement display module are set in casing；
P-wire is set in mechanical winder, the p-wire of mechanical winder line inlet port is connected with power module, mechanical spiral
The p-wire of device line outlet electrically connects with current transformer primary side；Measurement display module passes through p-wire and current transformer two
Secondary side electrical connection；Mechanical winder is winder common in the art, built-in spool, and test wire is entered by line inlet port
Enter winder, be wrapped on spool, passed from line outlet；In use, test wire is pulled out from outlet of coil winder, receive
When putting, test wire is gently drawn, test wire can be automatically retracted to winder.The setting of mechanical winder, shortens test wire
Expansion and the time retractd, improve test efficiency.
Wherein, power module, including：Tie point, the second branch road and the 3rd branch road parallel with one another；
Tie point, including：Intermittent power-on switch, the first battery, the second battery are sequentially connected in series；The negative pole of first battery
Switched by voltage-regulation and electrically connected with the negative pole of the second battery；First battery and the second battery are chargeable lithium cell；Examination
When testing, by disconnecting and closing intermittent power-on switch, intermittent be powered is realized；The size of supply voltage, is directly connected to electricity
The size of current transformer secondary winding electric current, for different current transformers, set voltage-regulation to switch, make primary side power supply
Supply voltage can select as needed.When closing voltage-regulation switch, only the first battery is powered as power supply；Off voltage
During adjusting switch, the first battery and the second battery are together in series and powered as power supply；
Second branch road, including：Electricity display switch, electric-quantity display device concatenation；Electric-quantity display device is Coulomb meter lithium battery
Measure display；
3rd branch road, including：Charging circuit, charge switch concatenation；Charging circuit input socket electrically connects with external power source；
The delivery outlet of charging circuit is connected by charge switch with the first battery and the second battery both ends for being used as power supply, is closed charging and is opened
Close, charging circuit charges to the first battery and the second battery.
Tie point, the second branch road and the 3rd branch circuit parallel connection；
One end that intermittent power-on switch is not connected with the first battery, pass through p-wire and current transformer primary side positive pole
Connection；The negative pole of second battery, it is connected by p-wire with current transformer primary side negative pole；
Display module is measured, including：First measurement display module, the second measurement display module and the 3rd measurement show mould
Block；First measurement display module, the second measurement display module and the 3rd measurement display module include indicator lamp, ammeter and honeybee
Ring device；Indicator lamp, ammeter and buzzer are arranged in parallel；
First measurement display module is connected by p-wire with the protective winding of Current Transformer Secondary side；
Second measurement display module is connected by p-wire with the measurement winding of Current Transformer Secondary side；
3rd measurement display module is connected by p-wire with the measure winding of Current Transformer Secondary side.
When power module is connected with current transformer primary side, measures the protective winding of display module and secondary side, survey
Amount winding, measure winding connect, and can once measure three windings simultaneously, improve test efficiency.Measurement display module, which uses, to be referred to
Show the triple checkings of lamp, buzzer, ammeter, can quickly determine result of the test, improve test efficiency.Indicator lamp, ammeter
And the mode that buzzer is connected in parallel so that during one of failure, still do not influence the use of other verification tool.
It is preferred that test panel is parallel with tank floor；Body side sets fixed plate, and test panel passes through with fixed plate
Bolt is spirally connected；The setting that test panel is spirally connected with casing, it is easy to open test panel, internal circuit is repaired；
Fixed setting battery case and charging circuit in casing, battery case is interior to set the first battery and the second battery；
The intermittent power-on switch, voltage-regulation switch, electric-quantity display device, electricity display switch, charge switch, charging
Circuit input socket and measurement display module are arranged on test panel；Indicator lamp, buzzer and ammeter are arranged at survey
Try on panel.All testing tools are integrated in casing, are easy to carry.
Beneficial effect of the present invention includes：
110kV current transformers integrated form polarity test device provided by the invention, compared with prior art, use can fill
The lithium battery of electricity sets electric-quantity display device, intermittent power-on switch and charging circuit as power supply so that electricity can
It has been shown that, circuit loose contact phenomenon in experiment is prevented, has improved test efficiency, while reduce environmental pollution；Using machinery
Formula winder retracts to p-wire, shortens p-wire expansion and the time retractd, improves test efficiency；Using triple
Verification mode is verified to experimental result, can quickly determine result of the test；Three drive test amount display modules are set simultaneously, can
The road winding of current transformer output end three is tested simultaneously, improves test efficiency；And testing tool is integrated at one
In casing, portability is improved.
Brief description of the drawings
In the accompanying drawings：
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is circuit part annexation figure in the present invention；
Fig. 3 is test panel structural representation in the present invention.
Description of reference numerals：1 casing；10 case lids；11 fixed plates；12 bolts；2 test panels；3 power modules；30 first
Battery；31 second batteries；32 electric-quantity display devices；33 charging circuits；34 charging circuit input sockets；35 voltage-regulations switch；36
Intermittent power-on switch；37 electricity display switches；38 charge switch；39 battery cases；4 mechanical winders；40 mechanical spirals
Device line outlet；41 mechanical winder line inlet ports；5 measurement display modules；50 first measurement display modules；51 second measurement displays
Module；52 the 3rd measurement display modules；53 ammeters；54 indicator lamps；55 buzzers；6 current transformers.
Embodiment
Below in conjunction with the accompanying drawings, with specific embodiment, the present invention will be described in detail.
Refering to the 110kV current transformer integrated form polarity test devices that shown in Fig. 1 and Fig. 2, the present embodiment provides, bag
Include：Casing 1, case lid 10 is set thereon；Set test panel 2, power module 3, mechanical winder 4 and measurement aobvious in casing 1
Show module 5；P-wire is set in mechanical winder 4, p-wire and the power module 3 of mechanical winder line inlet port 41 connect
Connect, the p-wire of mechanical outlet of coil winder 40 electrically connects with the primary side of current transformer 6；Measurement display module 5 passes through survey
Examination line electrically connects with the secondary side of current transformer 6；
Wherein, power module 3, including：Tie point, the second branch road and the 3rd branch road parallel with one another；
Tie point, including：Intermittent power-on switch 36, the first battery 30, the second battery 31 are sequentially connected in series；First battery
30 negative pole is electrically connected by voltage-regulation switch 35 with the negative pole of the second battery 31；First battery 30 and the second battery 31 are
Chargeable lithium cell；
Second branch road, including：Electricity display switch 37, electric-quantity display device 32 concatenate；Electric-quantity display device 32 is Coulomb meter lithium
Electric quantity indicator；
3rd branch road, including：Charging circuit 34, charge switch 38 concatenate；Charging circuit input socket 34 and external power source
Electrical connection；
Tie point, the second branch road and the 3rd branch circuit parallel connection；
One end that intermittent power-on switch 36 is not connected with the first battery 30, by p-wire and current transformer 6 once
Side positive pole connection；The negative pole of second battery 31, it is connected by p-wire with the primary side negative pole of current transformer 6；
Display module 5 is measured, including：It is aobvious that first measurement display module 50, second measures the measurement of display module 51 and the 3rd
Show module 52；First measurement display module 50, second measures display module 51 and the 3rd and measures display module 52 including instruction
Lamp 54, ammeter 53 and buzzer 55；Indicator lamp 54, ammeter 53 and buzzer 55 are arranged in parallel；
First measurement display module 50 is connected by p-wire with the protective winding of the secondary side of current transformer 6；
Second measurement display module 51 is connected by p-wire with the measurement winding of the secondary side of current transformer 6；
3rd measurement display module 52 is connected by p-wire with the measure winding of the secondary side of current transformer 6.
It is preferred that refering to shown in Fig. 1 and Fig. 3, test panel 2 is parallel with the bottom surface of casing 1；The side of casing 1 sets fixed plate
11, test panel 2 is spirally connected with fixed plate 11 by bolt 12；
Fixed setting battery case 39 and charging circuit 33 in casing 1, battery case 39 is interior to set the first battery 30 and the second electricity
Pond 31；
Intermittent power-on switch 36, voltage-regulation switch 35, electric-quantity display device 32, electricity display switch 37, charge switch
38th, charging circuit input socket 34 and measurement display module 5 are arranged on test panel 2；Indicator lamp 54, buzzer 55 and electricity
Flow table 53 is arranged on test panel.
In summary, scheme provided in an embodiment of the present invention, compared with prior art, when shortening the retracting of p-wire
Between, the verifying speed of experimental result is improved, improves test efficiency, while by the way that Tool integration in a casing, is carried
The high portability of device.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (2)
- A kind of 1. 110kV current transformers integrated form polarity test device, it is characterised in that including：Casing, case is set thereon Lid；Test panel, power module, mechanical winder and measurement display module are set in casing；Set in mechanical winder P-wire, the p-wire of mechanical winder line inlet port are connected with power module, the p-wire of mechanical outlet of coil winder with Current transformer primary side electrically connects；Measurement display module is electrically connected by p-wire with Current Transformer Secondary side；Wherein, power module, including：Tie point, the second branch road and the 3rd branch road parallel with one another；Tie point, including：Intermittent power-on switch, the first battery, the second battery are sequentially connected in series；The negative pole of first battery passes through Voltage-regulation switch electrically connects with the negative pole of the second battery；First battery and the second battery are chargeable lithium cell；Second branch road, including：Electricity display switch, electric-quantity display device concatenation；Electric-quantity display device is that Coulomb meter electric quantity of lithium battery shows Show device；3rd branch road, including：Charging circuit, charge switch concatenation；Charging circuit input socket electrically connects with external power source；Tie point, the second branch road and the 3rd branch circuit parallel connection；One end that intermittent power-on switch is not connected with the first battery, connected by p-wire and current transformer primary side positive pole Connect；The negative pole of second battery, it is connected by p-wire with current transformer primary side negative pole；Display module is measured, including：First measurement display module, the second measurement display module and the 3rd measurement display module；The One measurement display module, the second measurement display module and the 3rd measurement display module include indicator lamp, ammeter and buzzer； Indicator lamp, ammeter and buzzer are arranged in parallel；First measurement display module is connected by p-wire with the protective winding of Current Transformer Secondary side；Second measurement display module is connected by p-wire with the measurement winding of Current Transformer Secondary side；3rd measurement display module is connected by p-wire with the measure winding of Current Transformer Secondary side.
- 2. 110kV current transformers integrated form polarity test device as claimed in claim 1, it is characterised in that including：Test Panel is parallel with tank floor；Body side sets fixed plate, and test panel is spirally connected with fixed plate by bolt；Fixed setting battery case and charging circuit in casing, battery case is interior to set the first battery and the second battery；The intermittent power-on switch, voltage-regulation switch, electric-quantity display device, electricity display switch, charge switch, charging circuit Input socket and measurement display module are arranged on test panel；Indicator lamp, buzzer and ammeter are arranged at test surfaces On plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710941923.0A CN107643505A (en) | 2017-10-11 | 2017-10-11 | 110kV current transformer integrated form polarity test devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710941923.0A CN107643505A (en) | 2017-10-11 | 2017-10-11 | 110kV current transformer integrated form polarity test devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107643505A true CN107643505A (en) | 2018-01-30 |
Family
ID=61122993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710941923.0A Pending CN107643505A (en) | 2017-10-11 | 2017-10-11 | 110kV current transformer integrated form polarity test devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107643505A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108363032A (en) * | 2018-03-30 | 2018-08-03 | 浙江万纳核电检修有限公司 | Voltage transformer preventive trial no-load voltage ratio and no-load current test platform |
| CN111856381A (en) * | 2020-07-27 | 2020-10-30 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Disassembling and defect checking method of oil-immersed upright current transformer |
| CN114325507A (en) * | 2022-03-17 | 2022-04-12 | 国网山东省电力公司安丘市供电公司 | CT polarity test device |
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| CN106771837A (en) * | 2016-12-23 | 2017-05-31 | 国网山东省电力公司菏泽供电公司 | A kind of current transformer remote polarity tester |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108363032A (en) * | 2018-03-30 | 2018-08-03 | 浙江万纳核电检修有限公司 | Voltage transformer preventive trial no-load voltage ratio and no-load current test platform |
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| CN111856381B (en) * | 2020-07-27 | 2022-04-22 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Disassembling and defect checking method of oil-immersed upright current transformer |
| CN114325507A (en) * | 2022-03-17 | 2022-04-12 | 国网山东省电力公司安丘市供电公司 | CT polarity test device |
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