CN208125829U - A kind of main transformer attribute testing test device - Google Patents
A kind of main transformer attribute testing test device Download PDFInfo
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- CN208125829U CN208125829U CN201820335049.6U CN201820335049U CN208125829U CN 208125829 U CN208125829 U CN 208125829U CN 201820335049 U CN201820335049 U CN 201820335049U CN 208125829 U CN208125829 U CN 208125829U
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- transverse slat
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Abstract
A kind of main transformer attribute testing test device, including：The terminal box of prefabricated switching circuit is electrically connected with transformer to be checked, is slidably connected with switching transverse slat；For switching the switching transverse slat of prefabricated route in terminal box, runs through terminal box, be slidably connected with terminal box, be electrically connected with signal generator and signal amplification circuit；Signal generator is electrically connected for generating detection current detection signal with switching transverse slat；Signal amplification circuit, input terminal are electrically connected with switching transverse slat, and output end calculates device with voltage and current and is electrically connected；Voltage and current calculates device, for calculating voltage and current and resistance value, is electrically connected with signal amplification circuit, is electrically connected with switching transverse slat.The present apparatus can carry out repeated detection with a lead, and detection easy switching reduces the time that operator toggles route.
Description
Technical field
The utility model relates to main transformer detection instruments, and in particular to a kind of main transformer attribute testing test device.
Background technique
To guarantee safe and stable operation of power system, substation equipment need to carry out power failure annual test work according to the regulation period,
And as system operation mode and reliability requirement are higher and higher, the control of interruption maintenance time is also increasingly stringenter.
Main transformer attribute testing in annual test work mainly has：D.C. resistance, short-circuit impedance and loaded switch time waveform
Test.These three tests require to pick up test wire from tested sleeve of main transformer head, the short circuit of other casing heads（Or ground connection）Or open circuit
To complete.In view of what testing crew was frequently necessary to that upper and lower main transformer carries out test connection and shorting stub disconnects work, not only need
Plenty of time and energy are consumed, the high pendant risk in work is also relatively high, therefore when how to improve test efficiency, reducing maintenance
Between, reduce the project that work risk is current urgent need to resolve.
Chinese publication CN 202870212U, publication date on October 29th, 2012, the entitled main transformer of utility model
Depressor on-the-spot test testing stand provides a kind of main transformer on-the-spot test testing stand, including：Upper platform body and lower platform body and on
The test circuit switching system being arranged inside stage body.The upper platform body front is provided with warning lamp, instrument patch panel and control
Display board is provided with high-potting terminal plate, measurement terminal plate and power control board at the back side of the upper platform body；The test
Circuit switching system is made of single-chip microcontroller, control display centre, switching relay matrix unit, and the upper platform body is with lower platform body
Embedded foldable structure, upper platform body are embedded in lower platform body accommodating chamber.Compared with prior art, testing stand described in the utility model,
Test labor intensity is greatly reduced, ensure that the safety of testing crew, and folded testing stand, it is anti-crowded to improve load-bearing
The ability of pressure effectively reduces folded volume, is readily transported and stores.
But its shortcoming is to only provide a kind of connecting platform rather than be integrated with test platform, can only save part
Working time.
Utility model content
The present invention be directed to testing crews, and main transformer repeatedly time-consuming and danger, main transformer test up and down to be needed to need a variety of testers
Device and repetition wiring work, devise a kind of main transformer attribute testing test device.
A kind of main transformer attribute testing test device, including：The terminal box of prefabricated switching circuit is electrically connected with transformer to be checked
It connects, is slidably connected with switching transverse slat；For switching the switching transverse slat of prefabricated route in terminal box, run through terminal box, with terminal box
It is slidably connected, is electrically connected with signal generator and signal amplification circuit；Signal generator, for generating detection current detecting letter
Number, it is electrically connected with switching transverse slat；Signal amplification circuit, input terminal are electrically connected with switching transverse slat, and output end and voltage and current calculate
Device electrical connection；Voltage and current calculates device, for calculating voltage and current and resistance value, is electrically connected with signal amplification circuit, and cuts
Change transverse slat electrical connection.
When detection, detection device has the calculating and survey in terms of external regulated power supply power supply progress voltage and current
Examination, since main transformer is mostly resistance characteristic detection in test, conventional resistance detection mode is that input and output are carried out with current difference electricity
Pressure difference is compared calculating, so needing to be added amplifying circuit to read difference, when carrying out loaded switch calculating, needs to wave
Shape is calculated, it is therefore desirable to be used signal generator, be detected by waveform signal to main transformer.
Preferably, the terminal box, including：Protecting crust, insulation board and support insulator further include：It is several
Divide the bushing binding post of senior middle school's low pressure, is arranged at the top of terminal box, is electrically connected respectively with transformer to be checked, according to detection
Circuit arrangement is electrically connected with prefabricated test insulator binding post；The prefabricated test insulator binding post of several groups, and lead
The electrical connection of insulator binding post, runs through insulation board, is fixedly connected with insulation board；Zero curve insulator binding post, with transformer to be checked
Electrical connection, is electrically connected with signal generator and signal amplification circuit.
The detection route being equipped with is arranged in terminal box, but from main transformer draw under line there was only three side three-phases and zero-bit
Line amounts to 10, needs lead to be greater than 10 in terminal box, it is therefore desirable to which main transformer lead is connected to senior middle school's low pressure of lead
Bushing binding post, and prefabricated test insulator binding post is respectively led into from the bushing binding post of senior middle school's low pressure.
Preferably, the terminal box is equipped in the next case side in front and the back side slides opening for installation switching cross
Plate, sliding opening are additionally provided with groove every fixed range, are used to indicate switching transverse slat operating position.
Preferably, the bushing binding post is mounted in the pull box being arranged at the top of terminal box, pull box
It is fixedly connected with terminal box.
Preferably, the terminal box is additionally provided with intermediary's line recycling box, it is arranged on top lead insulator binding post side
On, intermediary's line recycling box is connected to pull box by aperture to be fixedly connected with terminal box.
At work it is main need to slide laterally switching transverse slat cross version can switch test type, slide handover transverse slat is only
When fixed groove, switching transverse slat can be caught in groove, enter working condition as long as pushing switch transverse slat when push plate at this time.
Preferably, the switching transverse slat, including：Several wiring insulators are arranged above top plate through top plate,
It is fixedly connected with top plate, is electrically connected with signal generator；Several detection interfaces, are arranged on wiring insulator, with wiring
Insulator electrical connection calculates device with signal amplification circuit and voltage and current and is electrically connected；Top plate, bottom are provided with positioning round tube,
Top is provided with wiring insulator, hinged with push plate；Push plate, top is hinged with top plate, and bottom is slidably connected with bottom plate；Bottom
Plate is slidably connected with push plate, is slidably connected with terminal box；Several positioning round tubes, are arranged at below top plate, solid with top plate
Fixed connection, with location hole cooperating；The location hole equal with positioning round tube mathematics is arranged on bottom plate, matches with positioning round tube
Close work；Placement hole identical with wiring insulator quantity is arranged on bottom plate, and position and the cooperation of wiring insulator dispose.
Preferably, further including：Fault control device is arranged outside terminal box, for controlling the short-circuiting means in terminal box,
It is electrically connected with short-circuiting means；It is additionally provided with short-circuiting means on the insulation board, for carrying out short-circuit impedance test to needs
The two sides route of short circuit is shorted, and is electrically connected with fault control device, is electrically connected with prefabricated test insulator binding post.
The beneficial effects of the utility model are：The present apparatus can carry out repeated detection with a lead, reduce test
Main transformer number, the height reduced in experiment work fall risk to personnel up and down；Setting can be completed in annual test work inside the present apparatus
All attribute testings of main transformer, detection easy switching reduce the time that operator toggles route；The application of the present apparatus,
Main transformer test period is effectively shortened, test efficiency is improved, reduces substation equipment power off time, greatly improves system
Reliability of operation and stability, also providing to the realization of social benefit while increasing power supply department economic benefit has by force
The guarantee of power.
Detailed description of the invention
Structural representation top view in the terminal box of the prefabricated switching circuit of Fig. 1；
Structural representation front view in the terminal box of the prefabricated switching circuit of Fig. 2；
Structural representation side view in the terminal box of the prefabricated switching circuit of Fig. 3；
Fig. 4 terminal box box external structure diagrammatic elevation view；
Fig. 5 switches transverse plate structure schematic diagram；
In figure：1, insulation board, 2, prefabricated test insulator binding post, 3, support insulator, 4, zero curve insulator wiring
Column, 5, terminal box, 6, top plate, 7, push plate, 8, bottom plate, 9, positioning round tube, 10, sliding opening.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, the technical solution of the utility model is made further specifically
It is bright.
Embodiment 1
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, a kind of main transformer attribute testing test device, including：It is prefabricated
The terminal box 5 of switching circuit, is electrically connected with transformer to be checked, is slidably connected with switching transverse slat；It is prefabricated in terminal box 5 for switching
The switching transverse slat of route runs through terminal box 5, is slidably connected with terminal box 5, is electrically connected with signal generator and signal amplification circuit
It connects；Signal generator is electrically connected for generating detection current detection signal with switching transverse slat；Signal amplification circuit, input terminal with
Switch transverse slat electrical connection, output end calculates device with voltage and current and is electrically connected；Voltage and current calculate device, for calculate voltage and current with
And resistance value, it is electrically connected with signal amplification circuit, is electrically connected with switching transverse slat.
When detection, detection device has the calculating and survey in terms of external regulated power supply power supply progress voltage and current
Examination, since main transformer is mostly resistance characteristic detection in test, conventional resistance detection mode is that input and output are carried out with current difference electricity
Pressure difference is compared calculating, so needing to be added amplifying circuit to read difference, when carrying out loaded switch calculating, needs to wave
Shape is calculated, it is therefore desirable to be used signal generator, be detected by waveform signal to main transformer.
The terminal box 5, including：Protecting crust, insulation board 1 and support insulator 3 further include：Several points of senior middle schools
The bushing binding post of low pressure, setting are electrically connected with transformer to be checked, at 5 top of terminal box according to detection circuit respectively
Arrangement is electrically connected with prefabricated test insulator binding post 2；The prefabricated test insulator binding post 2 of several groups, it is exhausted with lead
The electrical connection of edge binding post, runs through insulation board 1, is fixedly connected with insulation board 1；Zero curve insulator binding post 4, with transformer to be checked
Electrical connection, is electrically connected with signal generator and signal amplification circuit.
The detection route being equipped with is arranged in terminal box 5, but from main transformer draw under line there was only three side three-phases and zero
Bit line amounts to 10, needs lead to be greater than 10 in terminal box 5, it is therefore desirable to main transformer lead be connected to senior middle school's low pressure of lead
Bushing binding post, and be respectively led into prefabricated test insulator binding post from the bushing binding post of senior middle school's low pressure
2。
The terminal box 5 is equipped in the next case side in front and the back side and slides opening 10 for installation switching transverse slat, slides
Dynamic opening 10 is additionally provided with groove every fixed range, is used to indicate switching transverse slat operating position.
The bushing binding post is mounted in the pull box being arranged at the top of terminal box 5, pull box and terminal box 5
It is fixedly connected.
The terminal box 5 is additionally provided with intermediary's line recycling box, is arranged on top lead insulator binding post side, intermediary's line
Recycling box is connected to by aperture with pull box and is fixedly connected with terminal box 5.
At work it is main need to slide laterally switching transverse slat cross version can switch test type, slide handover transverse slat is only
When fixed groove, switching transverse slat can be caught in groove, enter work shape as long as pushing switch transverse slat when push plate 7 at this time
State.
The switching transverse slat, including：Several wiring insulators are arranged above top plate 6 through top plate 6, with top
Plate 6 is fixedly connected, and is electrically connected with signal generator；Several detection interfaces, are arranged on wiring insulator, with wiring insulator
Electrical connection calculates device with signal amplification circuit and voltage and current and is electrically connected；Top plate 6, bottom are provided with positioning round tube 9, top
It is provided with wiring insulator, it is hinged with push plate 7；Push plate 7, top and top plate 6 are hinged, and bottom is slidably connected with bottom plate 8；Bottom
Plate 8 is slidably connected with push plate 7, is slidably connected with terminal box 5；Several positioning round tubes 9 are arranged at 6 lower section of top plate, with
Top plate 6 is fixedly connected, with location hole cooperating；With the equal location hole of positioning 9 mathematics of round tube, it is arranged on bottom plate 8, and it is fixed
9 cooperating of circle of position pipe；Placement hole identical with wiring insulator quantity is arranged on bottom plate 8, and position is matched with wiring insulator
Close placement.
Further include：Fault control device is arranged outside terminal box 5, for controlling the short-circuiting means in terminal box 5, with short circuit
Device electrical connection；It is additionally provided with short-circuiting means on the insulation board 1, for carrying out short-circuit impedance test to needs short circuit
Two sides route is shorted, and is electrically connected with fault control device, is electrically connected with prefabricated test insulator binding post 2.
Claims (5)
1. a kind of main transformer attribute testing test device, which is characterized in that including：
The terminal box of prefabricated switching circuit is electrically connected with transformer to be checked, is slidably connected with switching transverse slat；
For switching the switching transverse slat of prefabricated route in terminal box, runs through terminal box, be slidably connected with terminal box, occur with signal
Device and signal amplification circuit electrical connection；
Signal generator is electrically connected for generating detection current detection signal with switching transverse slat；
Signal amplification circuit, input terminal are electrically connected with switching transverse slat, and output end calculates device with voltage and current and is electrically connected；
Voltage and current calculates device, for calculating voltage and current and resistance value, is electrically connected with signal amplification circuit, with switching transverse slat
Electrical connection.
2. a kind of main transformer attribute testing test device according to claim 1, which is characterized in that the terminal box, packet
It includes：Protecting crust, insulation board and support insulator further include：
The bushing binding post of several points of senior middle school's low pressure is arranged at the top of terminal box, is electrically connected respectively with transformer to be checked,
It is electrically connected according to detection circuit arrangement and prefabricated test insulator binding post；
The prefabricated test insulator binding post of several groups, is electrically connected with bushing binding post, runs through insulation board, with insulation board
It is fixedly connected；
Zero curve insulator binding post, is electrically connected with transformer to be checked, is electrically connected with signal generator and signal amplification circuit.
3. a kind of main transformer attribute testing test device according to claim 2, which is characterized in that
The terminal box is equipped with sliding opening for installation switching transverse slat in the next case side in front and the back side, and sliding opening is every
It is additionally provided with groove every fixed range, is used to indicate switching transverse slat operating position；
The bushing binding post is mounted in the pull box being arranged at the top of terminal box, pull box and the fixed company of terminal box
It connects；
The terminal box is additionally provided with intermediary's line recycling box, is arranged on top lead insulator binding post side, the recycling of intermediary's line
Box is connected to by aperture with pull box and is fixedly connected with terminal box.
4. a kind of main transformer attribute testing test device according to claim 1, which is characterized in that the switching transverse slat,
Including：
Several wiring insulators are arranged above top plate through top plate, are fixedly connected with top plate, are electrically connected with signal generator
It connects；
Several detection interfaces, are arranged on wiring insulator, are electrically connected with wiring insulator, with signal amplification circuit and electricity
The electrical connection of current voltage calculator；
Top plate, bottom are provided with positioning round tube, and top is provided with wiring insulator, hinged with push plate；
Push plate, top is hinged with top plate, and bottom is slidably connected with bottom plate；
Bottom plate is slidably connected with push plate, is slidably connected with terminal box；
Several positioning round tubes, are arranged at below top plate, are fixedly connected with top plate, with location hole cooperating；
The location hole equal with positioning round tube mathematics is arranged on bottom plate, with positioning round tube cooperating；
Placement hole identical with wiring insulator quantity is arranged on bottom plate, and position and the cooperation of wiring insulator dispose.
5. a kind of main transformer attribute testing test device according to claim 2, which is characterized in that further include：
Fault control device is arranged outside terminal box, for controlling the short-circuiting means in terminal box, is electrically connected with short-circuiting means；
It is additionally provided with short-circuiting means on the insulation board, for carrying out short-circuit impedance test to the two sides route for needing short circuit
It is shorted, is electrically connected with fault control device, is electrically connected with prefabricated test insulator binding post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820335049.6U CN208125829U (en) | 2018-03-12 | 2018-03-12 | A kind of main transformer attribute testing test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820335049.6U CN208125829U (en) | 2018-03-12 | 2018-03-12 | A kind of main transformer attribute testing test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208125829U true CN208125829U (en) | 2018-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820335049.6U Active CN208125829U (en) | 2018-03-12 | 2018-03-12 | A kind of main transformer attribute testing test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110927411A (en) * | 2019-10-16 | 2020-03-27 | 国网浙江省电力有限公司金华供电公司 | Auxiliary wiring device for transformer test |
-
2018
- 2018-03-12 CN CN201820335049.6U patent/CN208125829U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110927411A (en) * | 2019-10-16 | 2020-03-27 | 国网浙江省电力有限公司金华供电公司 | Auxiliary wiring device for transformer test |
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