CN209446687U - A kind of mining transformer detection device - Google Patents
A kind of mining transformer detection device Download PDFInfo
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- CN209446687U CN209446687U CN201822132419.9U CN201822132419U CN209446687U CN 209446687 U CN209446687 U CN 209446687U CN 201822132419 U CN201822132419 U CN 201822132419U CN 209446687 U CN209446687 U CN 209446687U
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- primary side
- interface circuit
- tap
- secondary side
- contactor
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Abstract
The utility model relates to a kind of mining transformer detection devices, and including the secondary side interface circuit for connecting each tap of secondary side, interface circuit connects a display control circuit；It further include pressure regulator, pressure regulator pair side is equipped with the primary side interface circuit for connecting each tap of primary side, primary side interface circuit includes: to be all provided on each primary side tap there are two corresponding probe of contactor, one of probe of contactor is for connection primary side tap and corresponding pressure regulator pair side, another probe of contactor is for connecting first voltage sensor；Primary side interface circuit further includes primary side current sensor.The voltage and current of primary side is detected by first voltage sensor and primary side current sensor that primary side interface circuit is arranged in, the measurement for primary side information is ensure that, it is not comprehensive enough to solve the problems, such as that the prior art detects transformer.
Description
Technical field
The utility model relates to transformer detection technique fields, and in particular to a kind of mining transformer detection device.
Background technique
Safety of Coal Mine Production is the most important thing of colliery industry at present, and Safety of Coal Mine Production be unable to do without the confession of underground equipment
Electricity.Underground power supply used there are different forceful electric power voltages, and the transformer of different taps is needed to carry out conversion burning voltage.Transformer detection
Working efficiency and safety be a very big problem, according to coal industry standard, mine power resource case will support 127V respectively
The voltage input of AC, 220V AC, 380V AC, 660VAC, 1140V AC, each voltage input point also need certain band to carry energy
Power.And the detection of each input point and operation need stable time at least 10 minutes, different voltages input point and load capacity
Detection also needs to test in different detecting tools, and needs manually to stand fast at replacement, and working efficiency substantially reduces, Er Qiejian
Detection setting is needed replacing when survey, safety and operability are all very poor.
Application publication number is that the Chinese invention patent application file of CN106324409A discloses a kind of load tap changer
Real time displaying apparatus and system is detected by the voltage and current to transformer, the tap joint position of calculating transformer, is led to
The output state for crossing multiple electromagnetic relays verifies the tap joint position of calculating, by the position of tap in display
On shown, user can obtain the position of tap in real time.The load tap changer Real time displaying apparatus and system intelligence
The secondary side of measuring transformer, is unable to measure primary side, causes information not comprehensive enough.
Utility model content
The purpose of this utility model is to provide a kind of mining transformer detection devices, for solving the prior art to transformation
Device detects not comprehensive enough problem.
In order to solve the above technical problems, the technical solution of the utility model are as follows:
The utility model provides a kind of mining transformer detection device, including for connecting each tap of secondary side
Secondary side interface circuit, the interface circuit connect a display control circuit；It further include pressure regulator, pressure regulator pair side, which is equipped with, to be used
In the primary side interface circuit of the connection each tap of primary side, the primary side interface circuit includes: each primary side tap
Be all provided on head there are two corresponding probe of contactor, one of probe of contactor for connection primary side tap with it is corresponding
Pressure regulator pair side, another probe of contactor is for connecting first voltage sensor；Primary side interface circuit further includes primary side
Current sensor.
The utility model has the beneficial effects that
By first voltage sensor and primary side current sensor that primary side interface circuit is arranged in primary side
Voltage and current is detected, and ensure that the measurement for primary side information, is solved the prior art and is detected not enough to transformer
Comprehensive problem.
Further, the secondary side interface circuit includes: that each secondary side tap is respectively connected with sampling resistor, is respectively adopted
Sample resistance connects second voltage sensor by corresponding contactor；Each secondary side tap is respectively connected with corresponding secondary
Side current sensor；Multiple sensor settings are conducive to the accuracy of detection device for detecting acquisition information.
Further, the first voltage sensor, primary side current sensor, second voltage sensor and secondary side electricity
Flow sensor is all connected to display control circuit；Be conducive to will test information and be shown to staff, improves work efficiency.
Further, display control circuit includes processor, display and control panel, the signal input of the processor
End connects the control panel, secondary side interface circuit, first voltage sensor, primary side current sensor, second voltage and passes
Sensor and secondary side current sensor；The signal output end of the processor connects the display；It is shown for human-computer interaction
Detection information.
Detailed description of the invention
Fig. 1 is the mining transformer detection device schematic diagram of the utility model embodiment；
Fig. 2 is the display control circuit schematic diagram of the utility model embodiment.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, with reference to the accompanying drawings and embodiments, to this
Utility model is described in further detail.
The utility model provides a kind of mining transformer detection device.As shown in Figure 1, the primary side of pressure regulator can connect
38V AC and 220V AC, pressure regulator pair side are equipped with a side interface electricity for connecting each tap of primary side of transformer
Road, each primary side interface circuit respectively correspond the input of 127V, 220V, 380V, 660V and 1140V alternating voltage.Each primary side
It is all provided on tap there are two (one group) corresponding probe of contactor, one of probe of contactor is tapped for connection primary side
Head is used to connect first voltage sensor v1 with corresponding pressure regulator pair side, another probe of contactor；Primary side interface circuit
It further include primary side current sensors A 0.
For example, pressure regulator pair side is connected with five taps of transformer primary side in Fig. 1, with corresponding point of 1140V AC
For connector, probe of contactor K1 is a linkage contact, and one of contact connects transformer primary side tap to be measured, separately
One contact connects first voltage sensor v1.Similarly, 127V, 220V, 380V, 660V voltage corresponding pressure regulator pair side tap
The probe of contactor connection type of head is same.
The secondary side of transformer is equipped with the secondary side interface circuit for connecting each tap of secondary side, each secondary side
Tap is respectively connected with sampling resistor, and each sampling resistor connects second voltage sensor v2 by corresponding contactor；Each
Secondary side tap is respectively connected with corresponding secondary side current sensor (A1, A2, A3, A4).Secondary side current sensor (A1,
A2, A3, A4) it is connected separately with display control circuit (not providing in figure).Display control circuit is as shown in Fig. 2, display control is electric
Road includes processor, display and control panel, the signal input part connection control panel of processor, secondary side interface circuit,
First voltage sensor, primary side current sensor, second voltage sensor and secondary side current sensor；The signal of processor
Output end connects display.The signal for the equipment that processor acquisition is connect with its signal input part, and by corresponding information by showing
Show that device is shown, so that relevant staff intuitively understands the working condition of equipment.
Processor model is chosen for the single-chip microcontroller of model TM1629B-32SOP in the present embodiment, as other embodiment party
Processor or processing unit commonly used in the art also can be selected in formula.
Above-mentioned contactor is for controlling different input voltages, no-load current, idle voltage output measuring circuit, realization pair
The automatic detection of the tap of different voltages.Contactor is controlled using single-chip microcontroller, carry out five kinds of tap output voltages (127V,
220V, 380V, 660V and 1140V) intelligent change detection.
When work, engaging means power supply (220V AC) first, need to transformer to be tested be installed to difference as needed
Connecting terminal on.
For example, closing probe of contactor K1 and probe of contactor K6, other A.C. contactors are opened, can be measured at this time
The input voltage of 1140V AC and the no-load current of 1140V AC, and sampling resistor is detected by second voltage sensor v2
The voltage at the both ends RL1, to obtain the idle voltage output of 220V AC.Primary side current sensor and two can be passed through by closing K8
The output electric current and input current of 220V AC in the case of secondary side current sensor measurement bringing onto load, after being converted by AD1 again by
Display control circuit shows measurement result, corresponding outputs and inputs winding so as to calculate.
For another example closing probe of contactor K1 and probe of contactor K7, other A.C. contactors are opened, can be measured at this time
The input voltage of 1140V AC and the no-load current of 1140V AC, and sampling resistor is detected by second voltage sensor v2
The voltage at the both ends RL2, to obtain the idle voltage output of 38V AC.Closing K9 can be by primary side current sensor and secondary
The output electric current and input current of 38V AC in the case of the current sensor measurement bringing onto load of side, again by showing after being converted by AD2
Show that control circuit shows measurement result, corresponding outputs and inputs winding so as to calculate.
Similarly, the ginseng in corresponding 660V, 380V, 220,127V alternating current can be detected respectively according to above-mentioned working principle
Number.
Claims (4)
1. a kind of mining transformer detection device, including the secondary side interface circuit for connecting each tap of secondary side, institute
It states secondary side interface circuit and connects a display control circuit；It is characterized in that, further including pressure regulator, pressure regulator pair side, which is equipped with, to be used
In the primary side interface circuit of the connection each tap of primary side, the primary side interface circuit includes: each primary side tap
Be all provided on head there are two corresponding probe of contactor, one of probe of contactor for connection primary side tap with it is corresponding
Pressure regulator pair side, another probe of contactor is for connecting first voltage sensor；Primary side interface circuit further includes primary side
Current sensor.
2. mining transformer detection device according to claim 1, which is characterized in that the secondary side interface circuit packet
Include: each secondary side tap is respectively connected with sampling resistor, and each sampling resistor connects second voltage by corresponding contactor
Sensor；Each secondary side tap is respectively connected with corresponding secondary side current sensor.
3. mining transformer detection device according to claim 2, which is characterized in that the first voltage sensor, one
Secondary side current sensor, second voltage sensor and secondary side current sensor are all connected to display control circuit.
4. mining transformer detection device according to claim 3, which is characterized in that display control circuit includes processing
Device, display and control panel, the signal input part of the processor connect the control panel, secondary side interface circuit, the
One voltage sensor, primary side current sensor, second voltage sensor and secondary side current sensor；The letter of the processor
Number output end connects the display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822132419.9U CN209446687U (en) | 2018-12-18 | 2018-12-18 | A kind of mining transformer detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822132419.9U CN209446687U (en) | 2018-12-18 | 2018-12-18 | A kind of mining transformer detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209446687U true CN209446687U (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822132419.9U Active CN209446687U (en) | 2018-12-18 | 2018-12-18 | A kind of mining transformer detection device |
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| Country | Link |
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| CN (1) | CN209446687U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816765A (en) * | 2020-08-28 | 2021-05-18 | 苏州灵成电气有限公司 | Intelligent transformer comprehensive parameter testing system |
-
2018
- 2018-12-18 CN CN201822132419.9U patent/CN209446687U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816765A (en) * | 2020-08-28 | 2021-05-18 | 苏州灵成电气有限公司 | Intelligent transformer comprehensive parameter testing system |
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