CN207623423U - A kind of bushing shell for transformer detection device - Google Patents
A kind of bushing shell for transformer detection device Download PDFInfo
- Publication number
- CN207623423U CN207623423U CN201721496383.1U CN201721496383U CN207623423U CN 207623423 U CN207623423 U CN 207623423U CN 201721496383 U CN201721496383 U CN 201721496383U CN 207623423 U CN207623423 U CN 207623423U
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- processing board
- display screen
- detection device
- adapter
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Abstract
A kind of bushing shell for transformer detection device, the power panel, signal-processing board, display screen, electronics row and air switch are configured on the backboard；The power panel, signal-processing board and display screen are configured at the top of the backboard, and the power panel, signal-processing board and display screen layered configuration are followed successively by power panel, signal-processing board and display screen from bottom to top layer；The power panel is used to receive external power supply and power supply is converted to the power supply that signal-processing board and display screen need, and the signal-processing board is used to calculate the measurement data of the adapter and the information of measurement is sent to the display screen and external equipment；The terminal block is configured at the lower part of the backboard, the air switch is configured at the side of the terminal block, the air switch is used to control the power supply of the self diagnosis detection device, the terminal block is used to transmit the signal of the adapter, and the adapter is used to detect the current information of the end shield ground wire of external equipment.
Description
Technical field
The utility model is related to a kind of bushing shell for transformer detection devices.
Background technology
Compared with the on-Line Monitor Device of the measurement dielectric loss currently generally used, PT voltage signals need not be taken at the scene,
Since the factors such as PT phase errors, monitoring system error itself influence, strong electromagnetic is dry at the scene for dielectric loss measurement on-Line Monitor Device
It disturbs under environment, the stability of measurement data is poor, and the reliability of data is not high, and installed many products do not have actual use
And reference value.
Utility model content
To overcome prior art problem, the utility model to provide a kind of bushing shell for transformer detection device.
A kind of bushing shell for transformer detection device, including backboard, power panel, signal-processing board, display screen, terminal block, air
Switch and adapter；
The power panel, signal-processing board, display screen, electronics row and air switch are configured on the backboard；The electricity
Source plate, signal-processing board and display screen are configured at the top of the backboard, the power panel, signal-processing board and display screen layering
Configuration, is followed successively by power panel, signal-processing board and display screen from bottom to top layer；The power panel is for receiving external power supply simultaneously
Power supply is converted into the power supply that signal-processing board and display screen need, the signal-processing board is used to calculate the survey of the adapter
The information of measurement is simultaneously sent to the display screen and external equipment by amount data；
The terminal block is configured at the lower part of the backboard, and the air switch is configured at the side of the terminal block, institute
Power supply of the air switch for controlling the self diagnosis detection device is stated, the terminal block is used to transmit the letter of the adapter
Number, the adapter is used to detect the current information of the end shield ground wire of external equipment.
Preferably, the adapter is three, corresponds to the A phases of the three phase mains of transformer, the end of B phases and C phases respectively
Shield ground wire.
Preferably, three adapters are socketed on the end shield ground wire of corresponding transformer.
Preferably, the power panel, signal-processing board and display screen pass through fixed column layered configuration.
Preferably, the data line of the adapter is connected to one end of the terminal block, the opposite terminal block
The lead of the other end passes through the backboard, is drawn from the rear portion of the backboard to the signal-processing board.
Preferably, the signal-processing board includes AD conversion unit, comparing unit, storage unit and communication unit.
Preferably, the AD conversion unit is used to the analog signals that the adapter is sent being converted to digital quantity
Signal；
The comparing unit is electrically connected with the AD conversion unit, and the comparing unit is used for real-time current signal
It is compared with given threshold；
The storage unit is electrically connected with the AD conversion unit, and the storage unit is obtained for storing from adapter
Tested device current value and time point；
The communication unit is electrically connected with the storage unit, and the communication unit is used to the information of storage being sent to outer
Portion's equipment.
Preferably, further include alarm unit, the alarm unit is electrically connected with the comparing unit, real-time when measurement
When current value is higher than the threshold value set, the alarm unit alarm.
Preferably, the adapter is configured in the shielded layer of end shield ground wire.
The beneficial effects of the utility model：
Bushing shell for transformer detection device provided by the utility model uses three-phase current vector sum principle, and the scene of not needing takes
Busbar PT voltages, it is only necessary to detection is monitored the end shield ground wire of high-tension apparatus, three-phase phase difference stablize must in range, when
When having a phase casing insulation defect or electric discharge occur in three-phase, three-phase current vector sum has significant change, can effectively be sentenced with this
Other casing insulation fault, the bushing shell for transformer detection device of the utility model is with simple in structure, easy for installation, at low cost, steady
The features such as qualitative reliability is high, adapter is configured in the shielded layer of end shield ground wire, is remarkably improved accuracy of measurement.
Description of the drawings
Fig. 1 is the apparatus structure schematic diagram at the first visual angle of the bushing shell for transformer detection device of the utility model；
Fig. 2 is the apparatus structure schematic diagram at the second visual angle of the bushing shell for transformer detection device of the utility model；
Fig. 3 is the electrical block diagram of the signal-processing board of the bushing shell for transformer detection device of the utility model.
Specific implementation mode
The utility model is described further below in conjunction with the accompanying drawings：As depicted in figs. 1 and 2, a kind of bushing shell for transformer inspection
Survey device, including backboard 1, power panel 2, signal-processing board 3, display screen 4, terminal block 5, air switch 6 and adapter 7；
The power panel 2, signal-processing board 3, display screen 4, electronics row 5 and air switch 6 are configured on the backboard 1；
The power panel 2, signal-processing board 3 and display screen 4 are configured at the top of the backboard 1, the power panel 2, signal-processing board 3
With 4 layered configuration of display screen, power panel 2, signal-processing board 3 and display screen 4 are followed successively by from bottom to top layer；The power panel 2
For receiving external power supply and power supply being converted to the power supply that signal-processing board 3 and display screen 4 need, specifically external power supply
From air switch 6 enters and having air switch controls its break-make；The signal-processing board 3 is used to calculate the survey of the adapter 7
The information of measurement is simultaneously sent to the display screen 4 by amount data, or is sent to external equipment by communication interface 8；The power supply
Plate 2, signal-processing board 3 and display screen 4 pass through 9 layered configuration of fixed column.With stating end shield of the adapter 7 for detecting external equipment
The current information of line, the adapter 7 are three, with corresponding to the end shield of the A phases of the three phase mains of transformer, B phases and C phases respectively
Line.Three adapters 7 are socketed on the end shield ground wire of corresponding transformer, and specifically, the adapter 7 is configured at end shield
In the shielded layer of ground wire, the external magnetic field of such mode high-tension transformer is interfered so that the electric current of the ground wire of measurement is more acurrate.
The terminal block 5 is configured at the lower part of the backboard 1, and the air switch 6 is configured at the side of the terminal block 5
Portion, the air switch 6 are used to control the power supply of the self diagnosis detection device, and the terminal block 5 is for transmitting the adaptation
The signal of device 7, the data line of the adapter 7 are connected to one end of the terminal block 5, the opposite terminal block 5 it is another
The lead at end passes through the backboard 1, is drawn from the rear portion of the backboard 1 to the signal-processing board 3.Ground wire 15 is for shielding this
The bushing shell for transformer detection device of utility model.
The signal-processing board 3 includes AD conversion unit 10, comparing unit 11, storage unit 12,13 and of communication unit
Alarm unit 14.
Analog-to-digital conversion Unit 10 is used to the analog signals that the adapter 7 is sent being converted to digital quantity signal；
The comparing unit 11 is electrically connected with the AD conversion unit 10, and the comparing unit 11 is used for will be electric in real time
Stream signal is compared with given threshold；
The storage unit 12 is electrically connected with the AD conversion unit 10, and the storage unit 12 is for storing from adaptation
The current value for the tested device that device 7 obtains and time point；
The communication unit 13 is electrically connected with the storage unit 12, the information hair that the communication unit 13 is used to store
Give external equipment.
The alarm unit 14 is electrically connected with the comparing unit 11, when the real-time current value of measurement is higher than the threshold value set
When, the alarm unit 14 is alarmed.
When in use, the current information that the end shield ground wire of high-tension transformer is measured by adapter 7, by with detecting end shield
The current information of line obtains the situation of the electric current of transformer, phase etc., and specific electric current regards different from the correspondence of transformer
Depending on the transformer of type, but the two has certain ratio relation；When measuring obtained leakage current more than threshold value, it was demonstrated that connect
Ground or electric current are excessive, can be alarmed at this time by alarm unit 14, inquire storage unit 12 by communication interface 8, obtain history number
It is analyzed according to the case where transformer.
Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various modifications and improvement that the technical solution of utility model is made should all fall into the protection of the utility model claims book determination
In range.
Claims (9)
1. a kind of bushing shell for transformer detection device, it is characterised in that：
Including backboard, power panel, signal-processing board, display screen, terminal block, air switch and adapter；
The power panel, signal-processing board, display screen, electronics row and air switch are configured on the backboard；The power panel,
Signal-processing board and display screen are configured at the top of the backboard, the power panel, signal-processing board and display screen layered configuration,
Power panel, signal-processing board and display screen are followed successively by from bottom to top layer；The power panel is used to receive external power supply and will be electric
Source is converted to the power supply that signal-processing board and display screen need, and the signal-processing board is used to calculate the measurement number of the adapter
It is sent to the display screen and external equipment according to and by the information of measurement；
The terminal block is configured at the lower part of the backboard, and the air switch is configured at the side of the terminal block, the sky
Air cock is used to control the power supply of self diagnosis detection device, and the terminal block is used to transmit the signal of the adapter, described suitable
Orchestration is used to detect the current information of the end shield ground wire of external equipment.
2. bushing shell for transformer detection device according to claim 1, it is characterised in that：The adapter is three, respectively
The A phases of the three phase mains of corresponding transformer, the end shield ground wire of B phases and C phases.
3. bushing shell for transformer detection device according to claim 2, it is characterised in that：Three adapters are socketed on phase
On the end shield ground wire for the transformer answered.
4. bushing shell for transformer detection device according to claim 1, it is characterised in that：The power panel, signal-processing board
Pass through fixed column layered configuration with display screen.
5. bushing shell for transformer detection device according to claim 1, it is characterised in that：The data line of the adapter connects
Lead to one end of the terminal block, the other end of the opposite terminal block passes through the backboard, after the backboard
It draws to the signal-processing board in portion.
6. bushing shell for transformer detection device according to claim 1, it is characterised in that：The signal-processing board includes modulus
Converting unit, comparing unit, storage unit and communication unit.
7. bushing shell for transformer detection device according to claim 6, it is characterised in that：
The AD conversion unit is used to the analog signals that the adapter is sent being converted to digital quantity signal；
The comparing unit is electrically connected with the AD conversion unit, the comparing unit be used for by real-time current signal with set
Determine threshold value to be compared；
The storage unit is electrically connected with the AD conversion unit, and the storage unit is for storing the quilt obtained from adapter
Survey current value and the time point of device；
The communication unit is electrically connected with the storage unit, and the communication unit is set for the information of storage to be sent to outside
It is standby.
8. bushing shell for transformer detection device according to claim 7, it is characterised in that：
Further include alarm unit, the alarm unit is electrically connected with the comparing unit, is set when the real-time current value of measurement is higher than
When fixed threshold value, the alarm unit alarm.
9. bushing shell for transformer detection device according to claim 1, it is characterised in that：
The adapter is configured in the shielded layer of end shield ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721496383.1U CN207623423U (en) | 2017-11-10 | 2017-11-10 | A kind of bushing shell for transformer detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721496383.1U CN207623423U (en) | 2017-11-10 | 2017-11-10 | A kind of bushing shell for transformer detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207623423U true CN207623423U (en) | 2018-07-17 |
Family
ID=62828427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721496383.1U Active CN207623423U (en) | 2017-11-10 | 2017-11-10 | A kind of bushing shell for transformer detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207623423U (en) |
-
2017
- 2017-11-10 CN CN201721496383.1U patent/CN207623423U/en active Active
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