CN115047393A - Voltage transformer excitation characteristic testing method, device and system - Google Patents

Voltage transformer excitation characteristic testing method, device and system Download PDF

Info

Publication number
CN115047393A
CN115047393A CN202210562896.7A CN202210562896A CN115047393A CN 115047393 A CN115047393 A CN 115047393A CN 202210562896 A CN202210562896 A CN 202210562896A CN 115047393 A CN115047393 A CN 115047393A
Authority
CN
China
Prior art keywords
test
voltage transformer
voltage
junction box
excitation characteristic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210562896.7A
Other languages
Chinese (zh)
Inventor
刘钊
王佼
郭猛
李文峰
刘胜军
冯正军
赵军愉
杨彬
田小龙
赵薇
金超
赵海霞
刘潇檀
李晓溪
刘小琰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baoding Power Supply Co of State Grid Hebei Electric Power Co Ltd
State Grid Corp of China SGCC
Original Assignee
Baoding Power Supply Co of State Grid Hebei Electric Power Co Ltd
State Grid Corp of China SGCC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baoding Power Supply Co of State Grid Hebei Electric Power Co Ltd, State Grid Corp of China SGCC filed Critical Baoding Power Supply Co of State Grid Hebei Electric Power Co Ltd
Priority to CN202210562896.7A priority Critical patent/CN115047393A/en
Publication of CN115047393A publication Critical patent/CN115047393A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

本申请提供的一种电压互感器励磁特性测试方法、装置及系统，该方法包括：获取接线箱中的测试模块对应的试验电压，其中，所述接线箱中的测试模块与电压互感器电性连接，根据所述试验电压以及预设励磁特性算法，计算得到试验电流，以及根据多个所述试验电流和多个所述试验电压，生成磁化曲线。通过对接线箱中的测试模块加试验电压，然后再通过预设励磁特性算法计算得出试验电流，最后根据试验电压和试验电流得到生成曲线，从而根据曲线确定电压互感器的铁芯质量等。仅通过对接线箱中的测试模块加试验电压，从而减少了作业人员测试流程的复杂性，并保证了作业人员的作业安全。

Figure 202210562896

The present application provides a method, device and system for testing excitation characteristics of a voltage transformer. The method includes: obtaining a test voltage corresponding to a test module in a junction box, wherein the test module in the junction box is electrically connected to the voltage transformer. connecting, calculating a test current according to the test voltage and a preset excitation characteristic algorithm, and generating a magnetization curve according to a plurality of the test currents and a plurality of the test voltages. By applying the test voltage to the test module in the junction box, and then calculating the test current through the preset excitation characteristic algorithm, and finally generating the curve according to the test voltage and test current, so as to determine the core quality of the voltage transformer according to the curve. Only by applying the test voltage to the test module in the junction box, the complexity of the operator's test process is reduced, and the operator's work safety is guaranteed.

Figure 202210562896

Description

Voltage transformer excitation characteristic testing method, device and system
Technical Field
The application relates to the technical field of excitation characteristic testing, in particular to a method, a device and a system for testing the excitation characteristic of a voltage transformer.
Background
With the advance and development of technology, electricity becomes indispensable energy for thousands of households, such as lighting rooms, cooking water and the like. Electric power energy is huge, and in order to conveniently carry electric energy, equipment such as power plant, transformer substation can be equipped with voltage transformer. The voltage transformer is mainly used for converting high voltage into low voltage and then carrying out electric energy metering, high voltage measurement and the like through the cooperation with an instrument. In the excitation characteristic test method of the voltage transformer in the prior art, test voltages are added to protection windings of the voltage transformers at different positions for testing, so that the test is complicated and unsafe.
Disclosure of Invention
The present application is proposed to solve the above-mentioned technical problems. The embodiment of the application provides a method, a device and a system for testing the excitation characteristic of a voltage transformer, and solves the problems of complex test and insecurity.
According to one aspect of the application, a method for testing the excitation characteristic of a voltage transformer is provided, which comprises the following steps: acquiring test voltage corresponding to a test module in a junction box; the testing module in the junction box is electrically connected with the voltage transformer; calculating to obtain a test current according to the test voltage and a preset excitation characteristic algorithm; and generating a magnetization curve according to the plurality of test currents and the plurality of test voltages.
In an embodiment, the obtaining a test voltage corresponding to a test module in a junction box includes: if detecting that one end of the protection winding with the wiring terminal box of the protection room removed is grounded, acquiring test voltage of a test module in the wiring box; and the test module in the junction box is electrically connected with the protection room wiring terminal box.
According to another aspect of the present application, there is provided a voltage transformer excitation characteristic testing apparatus, including: the acquisition module is used for acquiring test voltage corresponding to the test module in the junction box; the testing module in the junction box is electrically connected with the voltage transformer; the calculation module is used for calculating to obtain a test current according to the test voltage and a preset excitation characteristic algorithm; and the generating module is used for generating a magnetization curve according to the test currents and the test voltages.
According to another aspect of the present application, there is provided a voltage transformer excitation characteristic test system, including: a support column; the voltage transformer is arranged on the support; the junction box is arranged on the support column and is electrically connected with the voltage transformer through a first electric wire; the protection room wiring terminal box comprises a wiring terminal, the wiring terminal is electrically connected with the wiring box through a second wire, and one end of a protection winding in the protection room wiring terminal box is detached; and an experimental box, the experimental box contains a controller, the controller is electrically connected with the test module in the junction box, and the controller is used for: acquiring test voltage corresponding to the test module in the junction box; the testing module in the junction box is electrically connected with the voltage transformer; calculating to obtain a test current according to the test voltage and a preset excitation characteristic algorithm; and generating a magnetization curve according to the plurality of test currents and the plurality of test voltages.
In an embodiment, the voltage transformer excitation characteristic test system further comprises a multimeter, the multimeter is electrically connected with the protection winding in the protection room terminal box, and the multimeter is used for detecting whether one end of the removed protection winding is grounded.
In one embodiment, the controller comprises an excitation characteristic tester.
In an embodiment, the voltage transformer excitation characteristic test system further comprises an insulation head, and the insulation head is arranged at one end of the removed protection winding.
In an embodiment, the voltage transformer excitation characteristic testing system further includes an identification component, the identification component is fixed on the first electric wire or the second electric wire, and the identification component is used for identifying the first electric wire or the second electric wire.
In an embodiment, the identification component comprises a first component and a second component, the first end of the first component is fixedly connected with the first end of the second component, the second end of the first component is provided with a protrusion, the second end of the second component is provided with a groove, the protrusion is matched with the groove, and a notch is arranged inside the first component and/or the second component.
In one embodiment, the surface of the first member is in the shape of an arc and the surface of the second member is in the shape of an arc.
The application provides a method, a device and a system for testing the excitation characteristic of a voltage transformer, wherein the method comprises the following steps: the method comprises the steps of obtaining test voltage corresponding to a test module in a junction box, wherein the test module in the junction box is electrically connected with a voltage transformer, calculating to obtain test current according to the test voltage and a preset excitation characteristic algorithm, and generating a magnetization curve according to a plurality of the test current and a plurality of the test voltage. The test voltage is applied to the test module in the junction box, then the test current is calculated through a preset excitation characteristic algorithm, and finally a generation curve is obtained according to the test voltage and the test current, so that the quality of an iron core of the voltage transformer is determined according to the curve. The test voltage is only applied to the test module in the junction box, so that the complexity of the test process of the operators is reduced, and the operation safety of the operators is ensured.
Drawings
The above and other objects, features and advantages of the present application will become more apparent by describing in more detail embodiments of the present application with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings, like reference numbers generally represent like parts or steps.
Fig. 1 is a schematic flowchart of a method for testing excitation characteristics of a voltage transformer according to an exemplary embodiment of the present application.
Fig. 2 is a schematic flowchart of a method for testing excitation characteristics of a voltage transformer according to another exemplary embodiment of the present application.
Fig. 3 is a schematic structural diagram of a voltage transformer excitation characteristic testing apparatus according to an exemplary embodiment of the present application.
Fig. 4 is a schematic structural diagram of a voltage transformer excitation characteristic testing apparatus according to another exemplary embodiment of the present application.
Fig. 5 is a schematic structural diagram of a voltage transformer excitation characteristic testing system according to an exemplary embodiment of the present application.
Fig. 6 is a schematic structural diagram of a voltage transformer excitation characteristic testing system according to another exemplary embodiment of the present application.
Fig. 7 is a schematic structural diagram of a voltage transformer excitation characteristic testing system according to another exemplary embodiment of the present application.
Fig. 8 is a schematic structural diagram of a voltage transformer excitation characteristic testing system according to another exemplary embodiment of the present application.
Fig. 9 is a schematic structural diagram of a voltage transformer excitation characteristic testing system according to another exemplary embodiment of the present application.
Detailed Description
Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are only some embodiments of the present application and not all embodiments of the present application, and that the present application is not limited by the example embodiments described herein.
Fig. 1 is a schematic flowchart of a method for testing excitation characteristics of a voltage transformer according to an exemplary embodiment of the present application. As shown in fig. 1, the method for testing the excitation characteristic of the voltage transformer includes:
step 110: and acquiring test voltage corresponding to the test module in the junction box, wherein the first end of the test module in the junction box is electrically connected with the voltage transformer.
Can be connected the binding post of voltage transformer on the support column with subaerial guard room through the junction box to make things convenient for the operation personnel to carry out corresponding operation in the guard room, need not to carry out the operation to voltage transformer on the support column, the operation personnel can avoid ascending a height and produce the incident. The operator can apply a test voltage to a test module in the junction box, which can be a metering winding or a measuring winding of a voltage transformer. The measuring winding is provided for carrying out a test of measuring the voltage transformer. The metering winding is used for converting a high voltage into a low voltage.
Step 120: and calculating to obtain the test current according to the test voltage and a preset excitation characteristic algorithm.
And calculating the test current corresponding to the test module by a preset excitation characteristic algorithm and the test voltage. The preset excitation characteristic algorithm is integrated in the excitation characteristic measuring instrument, that is, the excitation characteristic measuring instrument is connected with the testing module, and the corresponding test current can be calculated through the test voltage added in the testing module.
Step 130: a magnetization curve is generated based on the plurality of test currents and the plurality of test voltages.
And generating a magnetization curve through the plurality of test currents and the plurality of test voltages, and determining the quality of the iron core of the voltage transformer through the magnetization curve. Whether the voltage transformer winding has turn-to-turn short circuit or not is distinguished through the saturation degree of the magnetization curve.
The application provides a method for testing excitation characteristics of a voltage transformer, which comprises the following steps: the method comprises the steps of obtaining test voltage corresponding to a test module in a junction box, wherein the test module in the junction box is electrically connected with a voltage transformer, calculating to obtain test current according to the test voltage and a preset excitation characteristic algorithm, and generating a magnetization curve according to a plurality of the test current and a plurality of the test voltage. The test voltage is applied to the test module in the junction box, then the test current is calculated through a preset excitation characteristic algorithm, and finally a generated curve is obtained according to the test voltage and the test current, so that the quality of the iron core of the voltage transformer is determined according to the curve. Only by applying test voltage to the test module in the junction box, the complexity of the test process of the operators is reduced, and the operation safety of the operators is ensured.
Fig. 2 is a schematic flowchart of a method for testing excitation characteristics of a voltage transformer according to another exemplary embodiment of the present application. As shown in fig. 2, step 110 may include:
step 111: and if the grounding of one end of the removed protection winding of the protection room wiring terminal box is detected, acquiring the test voltage of the test module in the wiring box, wherein the second end of the test module in the wiring box is electrically connected with the protection room wiring terminal box.
The wiring terminal box of the protection room is convenient for operators to operate on the ground, and improves the operation safety. The protection winding of the wiring terminal box of the protection chamber is electrically connected with the protection winding of the wiring box and the protection winding of the voltage sensor, and the protection winding is grounded to ensure the safety of the voltage sensor. Whether one end of the removed protection winding in the protection room terminal box is grounded or not can be detected by a universal meter, and when one end of the removed protection winding in the protection room terminal box is grounded, the test voltage of the test module in the terminal box is obtained.
Fig. 3 is a schematic structural diagram of a voltage transformer excitation characteristic testing apparatus according to an exemplary embodiment of the present application.
As shown in fig. 3, the voltage transformer excitation characteristic test apparatus 20 includes:
the device comprises an acquisition module 201 used for acquiring test voltage corresponding to a test module in a junction box, wherein a first end of the test module in the junction box is electrically connected with a voltage transformer, a calculation module 202 used for calculating to obtain test current according to the test voltage and a preset excitation characteristic algorithm, and a generation module 203 used for generating a magnetization curve according to a plurality of test currents and a plurality of test voltages.
The application provides a voltage transformer excitation characteristic testing arrangement includes: the test voltage corresponding to the test module in the junction box is obtained through the obtaining module 201, wherein the test module in the junction box is electrically connected with the voltage transformer, the calculating module 202 calculates to obtain the test current according to the test voltage and a preset excitation characteristic algorithm, and the generating module 203 generates the magnetization curve according to a plurality of the test current and a plurality of the test voltage. The test voltage is applied to the test module in the junction box, then the test current is calculated through a preset excitation characteristic algorithm, and finally a generation curve is obtained according to the test voltage and the test current, so that the quality of an iron core of the voltage transformer is determined according to the curve. The test voltage is only applied to the test module in the junction box, so that the complexity of the test process of the operators is reduced, and the operation safety of the operators is ensured.
Fig. 4 is a schematic structural diagram of a voltage transformer excitation characteristic testing apparatus according to another exemplary embodiment of the present application. As shown in fig. 4, the obtaining module 201 may include:
the determining unit 2011 is configured to, if it is detected that one end of the removed protection winding of the protection terminal box is grounded, obtain a test voltage of the test module in the connection box, where a second end of the test module in the connection box is electrically connected to the protection terminal box.
Fig. 5 is a schematic structural diagram of a voltage transformer excitation characteristic testing system according to an exemplary embodiment of the present application. As shown in fig. 5, the voltage transformer excitation characteristic test system includes: support column 11, voltage transformer 12, junction box 13, protection room terminal box 14 and experimental box 15, voltage transformer 12 sets up on holding 11, junction box 13 sets up on support column 11, junction box 13 is through first electric wire 131 and 12 electric connection of voltage transformer, protection room terminal box 14 includes binding post 141, binding post 141 is through second electric wire 142 and 13 electric connection of junction box, the one end of the protection winding in protection room terminal box 14 is demolishd, and experimental box 15 holds the controller, test module electric connection in controller and the junction box 13, the controller is used for: the method comprises the steps of obtaining test voltage corresponding to a test module in a junction box 13, wherein a first end of the test module in the junction box 13 is electrically connected with a voltage transformer 12, calculating to obtain test current according to the test voltage and a preset excitation characteristic algorithm, and generating a magnetization curve according to a plurality of test currents and a plurality of test voltages.
The voltage transformer 12 is an electromagnetic voltage transformer with a voltage not exceeding 35kV, and is provided with at least 3 secondary windings, which are a metering winding, a measuring winding and a protection winding. The junction box 13 is electrically connected with the voltage transformer 12 through a first electric wire 131, the first electric wire 131 comprises a first sub-electric wire, a second sub-electric wire and a third sub-electric wire, the junction box 13 is electrically connected with the metering winding through the first sub-electric wire, the junction box 13 is electrically connected with the metering winding through the second sub-electric wire, and the junction box 13 is electrically connected with the protection winding through the third sub-electric wire. The junction box 13 is provided with a connection terminal, one end of the first sub-electric wire, the second sub-electric wire and the third sub-electric wire is connected with the connection terminal, and the other end of the first sub-electric wire, the second sub-electric wire and the third sub-electric wire is respectively electrically connected with the metering winding, the measuring winding and the protection winding. The measuring winding is provided for carrying out a test of measuring the voltage transformer. The metering winding is used for converting a high voltage into a low voltage. The protective winding can carry out grounding protection on the voltage transformer for equipment safety. Because junction box 13 and voltage transformer 12 all set up on support column 11, the operation of operation personnel all need the operation of ascending a height at every turn, and the operation personnel can carry out dismantling and measuring of corresponding line through junction box 13 and protection room wiring terminal box 14 to guarantee operation personnel's safety, reduced the complexity of operation flow.
The second electric wire 142 includes a fourth sub-electric wire, one end of which is electrically connected to one end of the first sub-electric wire in the junction box 13, and a fifth sub-electric wire, the other end of which is electrically connected to the connection terminal 141 in the protection room connection terminal box 14. One end of the fifth sub-electric wire is electrically connected to one end of the second sub-electric wire in the junction box 13, and the other end of the fifth sub-electric wire is electrically connected to the connection terminal 141 in the protection room connection terminal box 14. One end of the sixth sub-electric wire is electrically connected to one end of the third sub-electric wire in the junction box 13, and the other end of the sixth sub-electric wire is electrically connected to the connection terminal 141 in the protection room connection terminal box 14.
The application provides a voltage transformer excitation characteristic test system includes: the support column, voltage transformer, the junction box, protection room binding post case and experimental box, voltage transformer sets up on supporting, the junction box sets up on the support column, the junction box is through first electric wire and voltage transformer electric connection, protection room binding post case includes binding post, binding post passes through second electric wire and junction box electric connection, the one end of the protection winding in the protection room binding post case is demolishd, and the experimental box holds the controller, test module electric connection in controller and the junction box, the controller is used for: the method comprises the steps of obtaining test voltage corresponding to a test module in a junction box, wherein the first end of the test module in the junction box is electrically connected with a voltage transformer, calculating to obtain test current according to the test voltage and a preset excitation characteristic algorithm, and generating a magnetization curve according to a plurality of test currents and a plurality of test voltages. The test voltage is applied to the test module in the junction box, then the test current is calculated through a preset excitation characteristic algorithm, and finally a generation curve is obtained according to the test voltage and the test current, so that the quality of an iron core of the voltage transformer is determined according to the curve. The test voltage is only applied to the test module in the junction box, so that the complexity of the test process of the operators is reduced, and the operation safety of the operators is ensured.
Fig. 6 is a schematic structural diagram of a voltage transformer excitation characteristic testing system according to another exemplary embodiment of the present application. As shown in fig. 6, the voltage transformer excitation characteristic testing system may further include a multimeter 16, the multimeter 16 is electrically connected to the protection winding in the protection room terminal box 14, and the multimeter 16 is configured to detect whether one end of the removed protection winding is grounded.
Multimeter 16 detects whether one end of the protection winding is grounded to determine whether the protection winding is damaged, and if not, indicates that the protection winding is shorted or damaged, then the operator needs to refurbish the protection winding. If multimeter 16 detects that one end of the protection winding is grounded, then subsequent measurement procedures can be guaranteed to be safer. Be provided with the brace table that supports this universal meter 16 on the junction box 13, this brace table passes through the insulated wire and is connected with ground, is provided with a plurality of cavities on the brace table, and the protection winding that will be demolishd inserts in a cavity in a plurality of cavities to make the protection winding ground connection of demolishing, also prevent after the universal meter detects the protection winding that is demolishd, the one end of protection winding is exposed and makes the incident that the operating personnel touched and lead to.
In one embodiment, the controller includes an excitation characteristic tester.
Fig. 7 is a schematic structural diagram of a voltage transformer excitation characteristic testing system according to another exemplary embodiment of the present application. As shown in fig. 7, the voltage transformer excitation characteristic test system may further include an insulation head 17, and the insulation head 17 is disposed at one end of the removed protection winding.
In order to prevent the operator from accidentally touching the removed protective winding, an insulating head 17 is provided, which insulating head 17 can be placed over one end of the removed protective winding. The insulation head 17 has a slot into which one end of the removed protection winding can be inserted. In addition, the insulating head 17 is also connected with an insulating rod, which can be inserted into the ground, wherein the insulating rod can be extended and retracted, so that a sufficient height can be ensured for fixing the removed protection winding. The insulation head 17 can be applied to any removed electric wire, and safety accidents caused by touching of operators due to high voltage of the removed electric wire are prevented.
Fig. 8 is a schematic structural diagram of a voltage transformer excitation characteristic testing system according to another exemplary embodiment of the present application. As shown in fig. 8, the voltage transformer excitation characteristic testing system may further include an identification component 18, the identification component 18 is fixed on the first electric wire 131 or the second electric wire 142, and the identification component 18 is used for identifying the first electric wire 131 or the second electric wire 142.
Fig. 9 is a schematic structural diagram of a voltage transformer excitation characteristic testing system according to another exemplary embodiment of the present application. As shown in fig. 9, the identification member 18 comprises a first member 181 and a second member 182, a first end of the first member 181 is fixedly connected with a first end of the second member 182, a second end of the first member 181 is provided with a protrusion, a second end of the second member 182 is provided with a groove, the protrusion is matched with the groove, and a notch is arranged inside the first member 181 and/or the second member 182.
The notch can be used for placing identification components such as stickers and the like.
In one embodiment, the surface of the first member is arcuate and the surface of the second member is arcuate.
The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.

Claims (10)

1.一种电压互感器励磁特性测试方法，其特征在于，包括：1. a voltage transformer excitation characteristic testing method, is characterized in that, comprises: 获取接线箱中的测试模块对应的试验电压；其中，所述接线箱中的测试模块与电压互感器电性连接；Obtain the test voltage corresponding to the test module in the junction box; wherein, the test module in the junction box is electrically connected to the voltage transformer; 根据所述试验电压以及预设励磁特性算法，计算得到试验电流；以及Calculate the test current according to the test voltage and the preset excitation characteristic algorithm; and 根据多个所述试验电流和多个所述试验电压，生成磁化曲线。A magnetization curve is generated from a plurality of the test currents and a plurality of the test voltages. 2.根据权利要求1所述的电压互感器励磁特性测试方法，其特征在于，所述获取接线箱中的测试模块对应的试验电压包括：2. The method for testing the excitation characteristics of a voltage transformer according to claim 1, wherein the acquiring the test voltage corresponding to the test module in the junction box comprises: 若检测到保护室接线端子箱被拆除的保护绕组的一端接地，则获取所述接线箱中的测试模块的试验电压；其中，所述接线箱中的测试模块与所述保护室接线端子箱电性连接。If it is detected that one end of the protective winding from which the connection terminal box of the protection room is removed is grounded, the test voltage of the test module in the connection box is obtained; wherein, the test module in the connection box is electrically connected to the connection terminal box of the protection room. sexual connection. 3.一种电压互感器励磁特性测试装置，其特征在于，包括：3. A voltage transformer excitation characteristic testing device, characterized in that, comprising: 获取模块，用于获取接线箱中的测试模块对应的试验电压；其中，所述接线箱中的测试模块与电压互感器电性连接；an acquisition module for acquiring the test voltage corresponding to the test module in the junction box; wherein the test module in the junction box is electrically connected to the voltage transformer; 计算模块，用于根据所述试验电压以及预设励磁特性算法，计算得到试验电流；以及a calculation module for calculating the test current according to the test voltage and the preset excitation characteristic algorithm; and 生成模块，用于根据多个所述试验电流和多个所述试验电压，生成磁化曲线。A generating module is configured to generate a magnetization curve according to a plurality of the test currents and a plurality of the test voltages. 4.一种电压互感器励磁特性测试系统，其特征在于，包括：支撑柱；电压互感器，所述电压互感器设置在所述支撑住上；接线箱，所述接线箱设置在所述支撑柱上，所述接线箱通过第一电线与所述电压互感器电性连接；保护室接线端子箱，所述保护室接线端子箱包括接线端子，所述接线端子通过第二电线与所述接线箱电性连接，所述保护室接线端子箱中的保护绕组的一端被拆除；以及实验箱，所述实验箱容纳控制器，所述控制器与所述接线箱中的测试模块电性连接，所述控制器用于：获取所述接线箱中的测试模块对应的试验电压；其中，所述接线箱中的测试模块与电压互感器电性连接；根据所述试验电压以及预设励磁特性算法，计算得到试验电流；以及根据多个所述试验电流和多个所述试验电压，生成磁化曲线。4. A voltage transformer excitation characteristic testing system, characterized in that it comprises: a support column; a voltage transformer, the voltage transformer is arranged on the support; a junction box, the junction box is arranged on the support On the column, the junction box is electrically connected to the voltage transformer through a first wire; a protection room connection terminal box, the protection room connection terminal box includes a connection terminal, and the connection terminal is connected to the connection through a second wire The box is electrically connected, and one end of the protective winding in the connection terminal box of the protection room is removed; and the experiment box, the experiment box accommodates the controller, and the controller is electrically connected with the test module in the junction box, The controller is used for: acquiring the test voltage corresponding to the test module in the junction box; wherein, the test module in the junction box is electrically connected to the voltage transformer; according to the test voltage and the preset excitation characteristic algorithm, calculating a test current; and generating a magnetization curve based on a plurality of the test currents and a plurality of the test voltages. 5.根据权利要求4所述的电压互感器励磁特性测试系统，其特征在于，还包括万用表，所述万用表与所述保护室接线端子箱中的保护绕组电性连接，所述万用表用于检测被拆除的所述保护绕组的一端是否接地。5 . The excitation characteristic testing system of a voltage transformer according to claim 4 , further comprising a multimeter, the multimeter is electrically connected to the protection winding in the connection terminal box of the protection room, and the multimeter is used to detect Whether one end of the removed protective winding is grounded. 6.根据权利要求4所述的电压互感器励磁特性测试系统，其特征在于，所述控制器包括励磁特性测试仪。6 . The excitation characteristic test system of a voltage transformer according to claim 4 , wherein the controller comprises an excitation characteristic tester. 7 . 7.根据权利要求6所述的电压互感器励磁特性测试系统，其特征在于，还包括绝缘头，所述绝缘头设置在被拆除的所述保护绕组的一端。7 . The excitation characteristic testing system of a voltage transformer according to claim 6 , further comprising an insulating head, wherein the insulating head is disposed at one end of the removed protective winding. 8 . 8.根据权利要求4所述的电压互感器励磁特性测试系统，其特征在于，还包括标识部件，所述标识部件固定在所述第一电线或所述第二电线上，所述标识部件用于对所述第一电线或所述第二电线标识。8 . The excitation characteristic testing system of a voltage transformer according to claim 4 , further comprising an identification part, the identification part is fixed on the first electric wire or the second electric wire, and the identification part is used for 8. 8 . For identifying the first wire or the second wire. 9.根据权利要求8所述的电压互感器励磁特性测试系统，其特征在于，所述标识部件包括第一部件和第二部件，所述第一部件的第一端与所述第二部件的第一端固定连接，所述第一部件的第二端设置凸起，所述第二部件的第二端设置有凹槽，所述凸起与所述凹槽配合，所述第一部件和/或所述第二部件的内部设置有槽口。9 . The excitation characteristic testing system of a voltage transformer according to claim 8 , wherein the identification component comprises a first component and a second component, and the first end of the first component is connected to the second component. 10 . The first end is fixedly connected, the second end of the first part is provided with a protrusion, the second end of the second part is provided with a groove, the protrusion is matched with the groove, the first part and /or a notch is provided inside the second part. 10.根据权利要求9所述的电压互感器励磁特性测试系统，其特征在于，所述第一部件的表面为圆弧形状，所述第二部件的表面为圆弧形状。10 . The excitation characteristic testing system of a voltage transformer according to claim 9 , wherein the surface of the first component is in the shape of an arc, and the surface of the second component is in the shape of an arc. 11 .
CN202210562896.7A 2022-05-23 2022-05-23 Voltage transformer excitation characteristic testing method, device and system Pending CN115047393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210562896.7A CN115047393A (en) 2022-05-23 2022-05-23 Voltage transformer excitation characteristic testing method, device and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210562896.7A CN115047393A (en) 2022-05-23 2022-05-23 Voltage transformer excitation characteristic testing method, device and system

Publications (1)

Publication Number Publication Date
CN115047393A true CN115047393A (en) 2022-09-13

Family

ID=83159130

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210562896.7A Pending CN115047393A (en) 2022-05-23 2022-05-23 Voltage transformer excitation characteristic testing method, device and system

Country Status (1)

Country Link
CN (1) CN115047393A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119165430A (en) * 2024-11-21 2024-12-20 国网山东省电力公司营销服务中心(计量中心) Transformer characteristic detection method, system, storage medium and electronic device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU67285U1 (en) * 2007-05-11 2007-10-10 Общество с ограниченной ответственностью "Научно-производственное предприятие Марс-Энерго" DEVICE FOR TESTING SINGLE-PHASE VOLTAGE TRANSFORMERS
CN108132453A (en) * 2017-12-04 2018-06-08 广东电网有限责任公司电力科学研究院 A kind of intelligent termination for Electric Energy Tariff Point Metering Device on-line testing
CN110488068A (en) * 2019-08-07 2019-11-22 国网河北省电力有限公司 A sampling unit on a capacitive voltage transformer
CN110850352A (en) * 2019-12-01 2020-02-28 国网辽宁省电力有限公司锦州供电公司 Secondary circuit wiring checking method of 10kV voltage transformer
CN111257817A (en) * 2020-01-17 2020-06-09 广西电网有限责任公司桂林供电局 Method for testing excitation characteristic of voltage transformer
CN210954313U (en) * 2019-10-14 2020-07-07 南昌科晨电力试验研究有限公司 Voltage transformer error field detection termination
CN111474430A (en) * 2020-04-20 2020-07-31 广东电网有限责任公司 A test device for excitation characteristics of voltage transformers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU67285U1 (en) * 2007-05-11 2007-10-10 Общество с ограниченной ответственностью "Научно-производственное предприятие Марс-Энерго" DEVICE FOR TESTING SINGLE-PHASE VOLTAGE TRANSFORMERS
CN108132453A (en) * 2017-12-04 2018-06-08 广东电网有限责任公司电力科学研究院 A kind of intelligent termination for Electric Energy Tariff Point Metering Device on-line testing
CN110488068A (en) * 2019-08-07 2019-11-22 国网河北省电力有限公司 A sampling unit on a capacitive voltage transformer
CN210954313U (en) * 2019-10-14 2020-07-07 南昌科晨电力试验研究有限公司 Voltage transformer error field detection termination
CN110850352A (en) * 2019-12-01 2020-02-28 国网辽宁省电力有限公司锦州供电公司 Secondary circuit wiring checking method of 10kV voltage transformer
CN111257817A (en) * 2020-01-17 2020-06-09 广西电网有限责任公司桂林供电局 Method for testing excitation characteristic of voltage transformer
CN111474430A (en) * 2020-04-20 2020-07-31 广东电网有限责任公司 A test device for excitation characteristics of voltage transformers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘钊;王凯;李晓溪;王佼;王冬梅;: "220 kV电容式电压互感器介损试验转接盒", 农村电气化, no. 04, 10 April 2018 (2018-04-10) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119165430A (en) * 2024-11-21 2024-12-20 国网山东省电力公司营销服务中心(计量中心) Transformer characteristic detection method, system, storage medium and electronic device

Similar Documents

Publication Publication Date Title
CN102495245A (en) Withstand voltage test platform and test device for insulation rod
CN103018599A (en) Method for three-phase detection of errors of three-phase electronic transformer of gas insulated switchgear (GIS)
CN103063901A (en) Pilot frequency injection detection method of power grid ungrounded system busbar capacitance current
CN111175621A (en) Method, system and equipment for detecting insulation defects of medium-voltage and high-voltage rotating motors in nuclear power station
CN205248099U (en) After -current transformer
CN104020343B (en) High voltage transmission line electricity-testing method based on electric field intensity difference cloth Curve Matching
CN103675535A (en) High-tension transmission line power frequency parameter testing and testing connection switching integrated device
CN115047393A (en) Voltage transformer excitation characteristic testing method, device and system
CN206990758U (en) A kind of generator unit stator iron loss experimental provision
CN108181600B (en) Capacitive voltage transformer test device
CN107167698B (en) Lightning arrester leakage current live-line test device and method
CN105182156A (en) Waveform visualization based same-period loop polarity detection apparatus and detection method
CN104880686A (en) Device and method for checking portable electronic current transformer
CN106546940A (en) A kind of field testing procedure of optical voltage transformer
CN203705592U (en) Floor type safety tool withstand voltage test special-purpose device
CN110749849A (en) Capacitive voltage transformer dielectric loss and capacitance testing system and method
CN106199164A (en) A kind of measuring method of transformer iron core grounding current
CN105866667A (en) Loop resistance test method for two-terminal-grounding circuit breaker
CN204964744U (en) On --spot calibration system of portable electric energy meter
CN108646085A (en) A kind of earth mat shunting relating rule system and test method based on mobile network
CN104950203B (en) Transformer current protective loop method of calibration
CN106771514A (en) A kind of device and method of quick lookup voltage transformer failure
CN215067230U (en) Low current amplification generating device suitable for differential protection polarity test
CN202649309U (en) Direct current resistance test system of power transmission line
CN101923114A (en) Method for phasing resistors in ring network of medium voltage distribution lines

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20220913