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Method and system for monitoring voltage transformer

A technology of voltage transformers and transformers, which is applied in the electrical field, can solve problems such as the inability to effectively monitor the operation status of voltage transformers, and achieve the effect of improving work efficiency and safety

Inactive Publication Date: 2018-06-29
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method and system for monitoring a voltage transformer, at least solving the technical problem that the existing monitoring methods cannot effectively monitor the operation status of the voltage transformer

Method used

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  • Method and system for monitoring voltage transformer

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Embodiment 1

[0028] The embodiment of the present invention also provides a system for monitoring voltage transformers, figure 1 is a structural diagram of a system for monitoring voltage transformers according to an embodiment of the present invention, such as figure 1 As shown, the system includes: a first predetermined element 10, a second predetermined element 12 and an analysis device 14, wherein,

[0029] The first predetermined element 10 is connected to the primary winding of the voltage transformer in the generator, and is used to collect the first voltage signal of the above-mentioned voltage transformer; the second predetermined element 12 is connected to the above-mentioned primary winding, and is used to collect the above-mentioned voltage transformer. The second voltage signal of the second voltage signal; the analysis device 14 is connected with the above-mentioned first predetermined element and the above-mentioned second predetermined element, and is used to determine the ...

Embodiment 2

[0047] According to an embodiment of the present invention, an embodiment of a method for monitoring a voltage transformer is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and , although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0048] figure 2 It is a flow chart of the steps of a method for monitoring a voltage transformer according to an embodiment of the present invention, such as figure 2 As shown, the method includes the following steps:

[0049] Step S102, receiving the first voltage signal and the second voltage signal of the voltage transformer;

[0050] Step S104, determining first current data corresponding to the above-mentioned first voltage signal, and second current data corresponding to the above-ment...

Embodiment 3

[0071] The embodiment of the present invention also provides a device for implementing the above method for monitoring a voltage transformer, Figure 5 is a structural block diagram of a device for monitoring voltage transformers according to an embodiment of the present invention, such as Figure 5 As shown, the above-mentioned device for monitoring voltage transformers includes: a receiving module 50, a first determining module 52 and a second determining module 54, wherein,

[0072] The receiving module 50 is used to receive the first voltage signal and the second voltage signal of the above-mentioned voltage transformer; the first determination module 52 is used to determine the first current data corresponding to the above-mentioned first voltage signal, and the first current data corresponding to the above-mentioned second voltage signal The second current data corresponding to the signal; the second determination module 54 is configured to determine whether the operatin...

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Abstract

The invention discloses a method and system for monitoring a voltage transformer. The method comprises the following steps: receiving a first voltage signal and a second voltage signal of a voltage transformer; determining first current data corresponding to the first voltage signal and second current data corresponding to the second voltage signal; determining whether the operation status of thevoltage transformer is normal or not by analyzing the first current data and the second current data. The method and the system for monitoring the voltage transformer, disclosed by the invention, havethe advantages that the technical problem that the operation status of the voltage transformer cannot be effectively monitored by an existing monitoring mode is solved.

Description

technical field [0001] The invention relates to the electrical field, in particular to a method and system for monitoring a voltage transformer. Background technique [0002] When the voltage transformer (generator PT) in the generator is running, because the capacity of the voltage transformer is small and relatively constant, it is close to the no-load state during normal operation. Moreover, the current of the voltage transformer contains DC components and various harmonic components, and the value of the current is very small (the value is milliamp level). The current monitoring equipment can only monitor the voltage signal of the voltage transformer, and cannot effectively measure and record it. Current data for voltage transformers. [0003] However, because the impedance of the voltage transformer itself is very small, if a short circuit occurs on its secondary side, the current will increase sharply and burn the coil; because there is no effective method to measure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/02
CPCG01R35/02
Inventor 楚万庆
Owner CHNA ENERGY INVESTMENT CORP LTD
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