Background technique
Power transformer be it is a kind of the alternating voltage (electric current) of a certain numerical value can be become frequency it is identical another or
Electric energy can not only be sent to electricity consumption area by increasing voltage, also by the equipment of the different voltage of several numerical value (electric current)
Voltage can be reduced at different levels using voltage, meet the requirement of electricity consumption, therefore, power transformer is widely used in people
Daily life in.
With the rapid development of science and technology, the scale of power grid is gradually expanded, and power grid also becomes to become increasingly complex, and power grid
The problem is also more and more.On the one hand, due to the rapid growth of load, so that the load of power transformer is in higher
Level, therefore, when a failure occurs, power transformer it is possible that overload abnormal phenomenon;On the other hand, due to electronics
A large amount of uses of device, and influenced by subway line direct current leakage and Geomagnetic phenomena etc., direct current can be scurried into AC network,
There is phenomena such as D.C. magnetic biasing so as to cause power transformers, seriously disturbs the stable operation of power grid, these abnormal phenomenon
It all will be on the leakage field that show power transformer.But the inside of power transformer directly measure leakage field be it is very difficult,
Accordingly, it is difficult to find the abnormal leakage field of power transformer in time.
Utility model content
The purpose of the utility model is to provide a kind of transformer exception leakage fields to monitor system, to solve due to being difficult to measure electricity
The leakage field of power transformer leads to be difficult to the technical issues of finding the abnormal magnetic flux leakage of power transformer in time, to ensure electric power
The normal work of transformer.
In order to solve the above-mentioned technical problem, the utility model provides a kind of transformer exception leakage field monitoring system, including becomes
Depressor and wave recording device, the transformer include fuel tank and magnetic screen, and the magnetic screen is mounted on the inner wall of the fuel tank, institute
The outer surface for stating magnetic screen is wound with coil, and the both ends of the coil are each passed through oil tank wall and connect the wave recording device.
Preferably, the oil tank wall is equipped with connecting terminal, and the both ends of the coil pass through the wiring respectively
Terminal connects the wave recording device.
Preferably, the material of the coil is circular copper wire.
Preferably, transformer exception leakage field monitoring system further includes warning device, the warning device with
The wave recording device connection.
The utility model provides a kind of transformer exception leakage field monitoring system, including transformer and wave recording device, the change
Depressor includes fuel tank and magnetic screen, and the magnetic screen is mounted on the inner wall of the fuel tank, the outer surface winding of the magnetic screen
There is coil, the both ends of the coil are each passed through oil tank wall and connect the wave recording device.Pass through the appearance in the magnetic screen
Face winds the coil, and so that the both ends of the coil is each passed through the oil tank wall and connect the wave recording device, makes it possible to
Leakage field is enough converted by voltage signal by the coil, while the letter of the voltage on the coil is acquired by the wave recording device
Number, and show the waveform of the voltage signal, to realize the state for reflecting leakage field by the waveform of the voltage signal, thus real
The leakage field for having showed monitoring inside transformer, to guarantee the phenomenon that finding transformer exception leakage field in time, and then ensures change
The normal work of depressor.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Referring to figs. 1 and 2, a kind of transformer exception leakage field of the preferred embodiment in the utility model monitors system, packet
Transformer 1 and wave recording device 2 are included, the transformer 1 includes fuel tank 11 and magnetic screen 12, and the magnetic screen 12 is connected to the oil
On the inner wall of case 11, the outer surface of the magnetic screen 12 is wound with coil 13, and the both ends of the coil 13 are each passed through oil tank wall
And connect the wave recording device 2.
In the utility model embodiment, by winding the coil 13 in the outer surface of the magnetic screen 12, and make institute
The both ends for stating coil 13 are each passed through oil tank wall and connect the wave recording device 2, make it possible to leakage field through the coil 13
It is converted into voltage signal, while the voltage signal on the coil 13 is acquired by the wave recording device 2, and show the voltage
The waveform of signal, to realize the state for reflecting leakage field by the waveform of the voltage signal, to realize in monitoring transformer 1
The leakage field in portion the phenomenon that guarantee to find the abnormal leakage field of transformer 1 in time, and then ensures the normal work of transformer 1.
In the utility model embodiment, the wave recording device 2 includes: signal acquisition unit, for acquiring the coil
13 voltage signal;Signal processing unit for handling the voltage signal of acquisition, and exports the voltage signal
Waveform;Display unit, for showing the waveform of the voltage signal.Pass through the signal acquisition unit, the signal processing
Unit and the display unit realize the wave recording device 2 and acquire voltage signal on the coil 13, and described in showing
The waveform of voltage signal, and then realize the state for reflecting leakage field by the waveform of the voltage signal.
As shown in Fig. 2, the coil 13 is located at the inside of the fuel tank 11, the wave recording device 2 is located at the fuel tank 11
Outside, in order to realize the connection between the coil 13 and the wave recording device 2, oil tank wall described in the present embodiment is equipped with
Connecting terminal 14, the both ends of the coil 13 pass through the connecting terminal 14 respectively and connect the wave recording device 2.By described
The connecting terminal 14 is set on the side wall of fuel tank 11, enables the both ends of the coil 13 respectively by the connecting terminal
14 connections are located at the wave recording device 2 of the outside of fuel tank 11.
In the utility model embodiment, the mode that the connecting terminal 14 is set on the side wall of the fuel tank 11 can root
Factually border service condition is arranged, and need to only meet ensures that the coil 13 can connect the recording dress by the connecting terminal 14
Set 2.Connecting terminal 14 described in the present embodiment is set to the one way in which of the side wall of the fuel tank 11, specific manifestation
Are as follows: the connecting terminal 14 includes the first noumenon 141, the second ontology 142, the first fixing piece 143 and the second fixing piece 144, institute
It states the first fixing piece 143 and second fixing piece 144 is oppositely arranged, the first noumenon 141 and second ontology 142 are equal
Across first fixing piece 143 and second fixing piece 144, and respectively with first fixing piece 143 and described second
Fixing piece 144 connects;First fixing piece 143 is connected on the outer wall of the fuel tank 11, and second fixing piece 144 connects
On the inner wall of the fuel tank 12.
In the utility model embodiment, the both ends of the coil 13 connect the record by the connecting terminal 14 respectively
Wave apparatus 2, specific manifestation are as follows: transformer exception leakage field monitoring system further includes the first connecting line 3 and the second connecting line 4,
The first input end of the wave recording device 2 is fixed close to described first with the first noumenon 141 by first connecting line 3
One end of part 143 is electrically connected, and one end of the coil 13 and the first noumenon 141 are close to the one of second fixing piece 144
End electrical connection;Second input terminal of the wave recording device 2 is by second connecting line 4 with second ontology 142 close to institute
One end electrical connection of the first fixing piece 143 is stated, the other end of the coil 13 and second ontology 142 are solid close to described second
Determine one end electrical connection of part 144.Wherein, first connecting line 3 and second connecting line 4 are conducting wire.
In the utility model embodiment, the number of turns of the coil 13 can need to only expire according to actual use situation setting
Foot guarantees that the leakage field in the transformer 1 is converted into voltage signal by the coil 13, does not do herein more
Repeat.
In addition, the material of the coil 13 can also be according to actual use situation setting, such as circular copper wire, flat type copper wire.For
Make to design and simplify the structure, to reduce cost, the material of coil 13 described in the present embodiment is circular copper wire.
In the utility model embodiment, the phenomenon that finding transformer exception leakage field in time for the ease of user, this implementation
The monitoring of transformer exception leakage field described in example system further includes warning device (not shown), the warning device and the record
Wave apparatus 2 connects.By the way that the warning device is arranged, and it connect the warning device with the wave recording device 2, so that working as institute
When stating transformer 1 and the phenomenon that abnormal leakage field occur, signal can be delivered to the warning device by the wave recording device 2, and by
The warning device sounds an alarm, and to remind transformer 1 described in user abnormal magnetic flux leakage occur, and then guarantees to send out in time
The phenomenon that existing transformer exception leakage field, and the operation of the transformer 1 can be adjusted in time, to ensure the normal of the transformer 1
Work.
To sum up, the utility model provides a kind of transformer exception leakage field monitoring system, including transformer 1 and wave recording device 2,
The transformer 1 includes fuel tank 11 and magnetic screen 12, and the magnetic screen 12 is connected on the inner wall of the fuel tank 11, the magnetic cup
The outer surface for covering 12 is wound with coil 13, and the both ends of the coil 13 are each passed through oil tank wall and connect the wave recording device 2.It is logical
It crosses the outer surface in the magnetic screen 12 and winds the coil 13, and the both ends of the coil 13 is made to be each passed through oil tank wall and company
The wave recording device 2 is connect, makes it possible to that leakage field is converted into voltage signal by the coil 13, while filling by the recording
The voltage signal on the 2 acquisitions coil 13 is set, and shows the waveform of the voltage signal, passes through the voltage signal to realize
Waveform reflection leakage field state, thus realize monitoring transformer 1 inside leakage field, to guarantee to find transformer in time
The phenomenon that 1 abnormal leakage field, and then ensure the normal work of transformer 1.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.