CN218865991U - Transformer core grounding current measuring device - Google Patents
Transformer core grounding current measuring device Download PDFInfo
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- CN218865991U CN218865991U CN202221196840.6U CN202221196840U CN218865991U CN 218865991 U CN218865991 U CN 218865991U CN 202221196840 U CN202221196840 U CN 202221196840U CN 218865991 U CN218865991 U CN 218865991U
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- ammeter
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Abstract
The utility model relates to a transformer core ground current measuring device belongs to transformer ground current measurement technical field. Transformer core grounding current measuring device, including iron core measuring apparatu, current transformer, control box and control terminal, wherein: the iron core measuring instrument is connected with the transformer iron core through a connecting wire; the current transformer is connected with the iron core measuring instrument through a wire; the control box is internally provided with an ammeter, a processor and a communication module, the ammeter is connected with the current transformer through a wire, and the processor is respectively connected with the ammeter and the communication module through wires; and the control terminal is in communication connection with the processor through the communication module. The utility model discloses can measure transformer core earth current in real time, utilize current transformer to feed back the measuring result to the ampere meter, make things convenient for the operation personnel to patrol and examine the management and control.
Description
Technical Field
The utility model relates to a transformer core ground current measuring device belongs to transformer ground current measurement technical field.
Background
The transformer is a main part for transmitting electric energy, is one of key equipment of a power transmission and transformation system, and the operation state of the transformer directly influences the reliability and safety of a power system. Once the transformer fails to cause power failure, huge economic loss and social influence are caused. The iron core is grounded in multiple points, which is one of the reasons for the frequent accidents of the transformer in the present year; according to the statistical data, the multipoint earth fault of the iron core cannot be ignored, but in the daily work of people, the current of the iron core is measured once a month, the period is long, the workload is large, and the measurement of the current of the iron core is very inconvenient, in the patent with the prior patent number of CN202021862550.1 named as a transformer iron core earth current tester, although the earth current of the transformer iron core can be tested, the manual real-time operation is needed, and the workload of operators is greatly improved. Therefore, it is desirable to design a device that facilitates measuring the core current.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect that prior art exists, the utility model provides a transformer core grounding current measuring device.
A transformer core ground current measuring device, including iron core measuring apparatu, current transformer, control box and control terminal, wherein:
the iron core measuring instrument is connected with the transformer iron core through a connecting wire;
the current transformer is connected with the iron core measuring instrument through a wire;
the control box is internally provided with an ammeter, a processor and a communication module, the ammeter is connected with the current transformer through a lead, and the processor is respectively connected with the ammeter and the communication module through leads;
and the control terminal is in communication connection with the processor through the communication module.
Preferably, the control box is provided with an alarm indicator lamp.
Preferably, the control terminal adopts a computer.
Preferably, the iron core measuring instrument is an HT35 iron core measuring instrument.
Preferably, the display dial of the ammeter is positioned on the surface of the control box.
Transformer core ground current measuring device, following beneficial effect has:
(1) Operators do not need to go to the site for inspection and control in real time, and the workload of the operators is greatly reduced;
(2) The ground current real-time supervision shows, not the periodic inspection in the past, has made things convenient for operation personnel's management and control, has improved work efficiency.
Drawings
Fig. 1 is a connection block diagram of the present invention.
Fig. 2 is a schematic structural view of the control box.
In the figure: 1. a control box; 101. an alarm indicator light; 102. and displaying the dial plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment is as follows:
as shown in fig. 1-2, transformer core grounding current measuring device, including iron core measuring apparatu, current transformer, control box 1 and control terminal, wherein:
the iron core measuring apparatu is connected with transformer core through the connecting wire, and the iron core measuring apparatu adopts HT35 iron core measuring apparatu, and the advantage of HT35 iron core measuring apparatu is:
the current transformer is connected with the iron core measuring instrument through a wire, is connected in series in the circuit and is matched with the ammeter for use, so that large current connected in series on the circuit is converted into small current, and the effect of protecting the measuring instrument is achieved;
the control box 1 is internally provided with an ammeter, a processor and a communication module, the ammeter is connected with a current transformer through a wire, the processor is respectively connected with the ammeter and the communication module through wires, a display dial 102 of the ammeter is positioned on the surface outside the control box 1, so that direct observation of operators is facilitated, the processor collects the current detected by the ammeter, the current is sent to a control terminal through the communication module after processing, and the current is displayed on the control terminal in real time, so that the operators can monitor the grounding current of an iron core of the transformer without going to the site, and whether the transformer works normally is judged; the communication module is used without additionally arranging a plurality of wires, and is long in communication distance and convenient to use. Still be equipped with alarm indicator 101 on the control box 1, be connected through the wire between alarm indicator 101 and the treater, when the electric current size that the treater gathered is unusual, alarm indicator 101 can bright red light, and the operating personnel at the scene is convenient for discover the trouble of transformer, carries out maintenance debugging.
And the control terminal is in communication connection with the processor through the communication module, and adopts a computer which is easy to operate and visual in display.
The utility model discloses a use as follows: the utility model discloses a transformer core ground current measuring device, use the wire with the iron core of iron core measuring apparatu and transformer to be connected, current transformer uses the wire with the iron core measuring apparatu to be connected, current transformer uses the wire with the ampere meter to be connected, constitutes a series circuit, sends for control terminal through communication module after the treater gathers the electric current size processing of ampere meter, and the operation personnel can be long-rangely through the size of control terminal monitoring transformer ground current to this judges whether the transformer normally works; and operating personnel can judge whether the transformer works normally or not on site through the current indication of the ammeter and whether the alarm indicating lamp is on.
The utility model discloses can extensively apply to transformer ground current measurement occasion.
Claims (5)
1. The utility model provides a transformer core ground current measuring device which characterized in that, includes iron core measuring apparatu, current transformer, control box (1) and control terminal, wherein:
the iron core measuring instrument is connected with the transformer iron core through a connecting wire;
the current transformer is connected with the iron core measuring instrument through a wire;
the control box (1) is internally provided with an ammeter, a processor and a communication module, the ammeter is connected with the current transformer through a lead, and the processor is respectively connected with the ammeter and the communication module through leads;
and the control terminal is in communication connection with the processor through the communication module.
2. The transformer core grounding current measuring device according to claim 1, characterized in that an alarm indicator lamp (101) is arranged on the control box.
3. The transformer core grounding current measuring device according to claim 1, wherein the control terminal is a computer.
4. The transformer core grounding current measuring device according to claim 1, wherein the core measuring instrument is an HT35 core measuring instrument.
5. The transformer core grounding current measuring device according to claim 1, characterized in that a display dial (102) of the ammeter is positioned on the surface of the control box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221196840.6U CN218865991U (en) | 2022-05-17 | 2022-05-17 | Transformer core grounding current measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221196840.6U CN218865991U (en) | 2022-05-17 | 2022-05-17 | Transformer core grounding current measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218865991U true CN218865991U (en) | 2023-04-14 |
Family
ID=87355509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221196840.6U Active CN218865991U (en) | 2022-05-17 | 2022-05-17 | Transformer core grounding current measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218865991U (en) |
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2022
- 2022-05-17 CN CN202221196840.6U patent/CN218865991U/en active Active
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