CN103063924A - Vehicle-mounted integral three-phase direct-current resistance and transformation ratio and load comprehensive testing device and method - Google Patents
Vehicle-mounted integral three-phase direct-current resistance and transformation ratio and load comprehensive testing device and method Download PDFInfo
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Abstract
本发明公开的一种车载一体式三相直流电阻、变比、有载综合测试装置及方法，包括车载PC机、继电器控制及通信切换单元、三相直流电阻、变比、有载综合测试单元和用于切换测试线的继电器板，车载PC机通过继电器控制及通信信号切换单元与三相直流电阻、变比、有载综合测试单元进行测试数据通讯，继电器板与三相直流电阻、变比、有载综合测试单元的测试线相连接。本发明的测量过程自动，且减少试验用时，通过有效的功能整合，占有空间小，减少接线次数，提高工作效率，降低劳动强度，一次接线完成对变比、有载、直流电阻三种试验，省时省力，具有良好的应用前景。
The invention discloses a vehicle-mounted integrated three-phase DC resistance, transformation ratio, on-load comprehensive test device and method, including a vehicle-mounted PC, relay control and communication switching unit, three-phase DC resistance, transformation ratio, and on-load comprehensive test unit And the relay board used to switch the test line, the on-board PC performs test data communication with the three-phase DC resistance, transformation ratio, and on-load comprehensive test unit through the relay control and communication signal switching unit, and the relay board communicates with the three-phase DC resistance, transformation ratio , and the test line of the integrated test unit with load. The measurement process of the present invention is automatic, and the test time is reduced. Through effective function integration, it occupies a small space, reduces the number of connections, improves work efficiency, and reduces labor intensity. Three tests of transformation ratio, load and DC resistance are completed in one connection. It saves time and effort, and has a good application prospect.
Description
技术领域 technical field
本发明属于电力综合测量技术领域，具体涉及一种车载一体式三相直流电阻、变比、有载综合测试装置及方法。 The invention belongs to the technical field of electric power comprehensive measurement, and in particular relates to a vehicle-mounted integrated three-phase DC resistance, transformation ratio and load comprehensive test device and method.
背景技术 Background technique
传统的电力综合试验车主要实现测量电力系统中主变压器的直流电阻、变比、有载分接开关的参数三个项目，需要用三台不同的仪器，逐项分开测量，但是测量接线量多、复杂，要多次分别接线分别单独测量，由于测量接线次数多，接线时间长，从而增加了劳动强度，工作效率低，还有在直流电阻测量要多次人工改变测量接线，针对高压、中压、低压侧测量分三次接线才能完成一项试验项目，停电时间长，工作人员工作量大，大大浪费了人力和物力。 The traditional power comprehensive test vehicle mainly realizes the measurement of the three items of the DC resistance of the main transformer in the power system, the transformation ratio, and the parameters of the on-load tap changer. It needs to use three different instruments to measure each item separately. Many and complicated, it needs to be connected separately for many times and measured separately. Due to the large number of measurement connections and long connection time, the labor intensity is increased and the work efficiency is low. In addition, the measurement wiring needs to be manually changed many times in the DC resistance measurement. For high voltage, The measurement of the medium voltage and low voltage side needs to be connected three times to complete a test project. The power outage time is long and the workload of the staff is heavy, which greatly wastes manpower and material resources.
发明内容 Contents of the invention
为了克服现有技术中的问题，本发明提供的车载一体式三相直流电阻、变比、有载综合测试装置及方法，测量过程自动，且减少试验用时，通过有效的功能整合，占有空间小，减少接线次数，提高工作效率，降低劳动强度，一次接线完成对变比、有载、直流电阻三种试验，省时省力，具有良好的应用前景。 In order to overcome the problems in the prior art, the vehicle-mounted integrated three-phase DC resistance, transformation ratio, and load comprehensive testing device and method provided by the present invention have an automatic measurement process and reduce test time. Through effective function integration, the occupied space is small , Reduce the number of wiring, improve work efficiency, reduce labor intensity, and complete three tests of transformation ratio, load, and DC resistance with one connection, saving time and effort, and has a good application prospect.
为了达到上述目的，本发明所采用的技术方案是： In order to achieve the above object, the technical scheme adopted in the present invention is:
一种车载一体式三相直流电阻、变比、有载综合测试装置，其特征在于：包括车载PC机、继电器控制及通信切换单元、三相直流电阻、变比、有载综合测试单元和用于切换测试线的继电器板，所述车载PC机通过继电器控制及通信信号切换单元与三相直流电阻、变比、有载综合测试单元进行测试数据通讯，所述继电器板与三相直流电阻、变比、有载综合测试单元的测试线相连接。 A vehicle-mounted integrated three-phase DC resistance, transformation ratio, on-load comprehensive test device is characterized in that it includes a vehicle-mounted PC, a relay control and communication switching unit, a three-phase DC resistance, transformation ratio, on-load comprehensive test unit and For switching the relay board of the test line, the vehicle-mounted PC carries out test data communication with the three-phase DC resistance, transformation ratio, and on-load comprehensive test unit through the relay control and communication signal switching unit, and the relay board communicates with the three-phase DC resistance, The transformation ratio and the test line of the on-load comprehensive test unit are connected.
前述的车载一体式三相直流电阻、变比、有载综合测试装置，其特征在于：所述继电器板包括高压侧测试线接口单元、中压侧测试线接口单元和低压侧测试线接口单元。 The aforementioned vehicle-mounted integrated three-phase DC resistance, transformation ratio, and on-load comprehensive test device is characterized in that: the relay board includes a high-voltage side test line interface unit, a medium-voltage side test line interface unit, and a low-voltage side test line interface unit.
前述的车载一体式三相直流电阻、变比、有载综合测试装置，其特征在于：所述三相直流电阻、变比、有载综合测试单元包括分别与继电器板相连接的直流电阻测试模块、变比测试模块和有载测试模块。 The aforementioned vehicle-mounted integrated three-phase DC resistance, transformation ratio, and on-load comprehensive test device is characterized in that: the three-phase DC resistance, transformation ratio, and on-load comprehensive test unit include DC resistance test modules that are respectively connected to the relay board , Ratio test module and load test module.
基于上述的车载一体式三相直流电阻、变比、有载综合测试装置的测试方法，其特征在于：包括以下步骤， Based on the test method of the above-mentioned vehicle-mounted integrated three-phase DC resistance, transformation ratio, and load comprehensive test device, it is characterized in that: comprising the following steps,
步骤（1）将待测量变压器的高、中、低套管上的接线接好，并连接到对应的继电器板（4）的高压侧测试线接口单元、中压侧测试线接口单元和低压侧测试线接口单元的电流和电压端； Step (1) Connect the wiring on the high, medium and low bushings of the transformer to be measured, and connect them to the high-voltage side test line interface unit, the medium-voltage side test line interface unit and the low-voltage side of the corresponding relay board (4). Current and voltage terminals of the test line interface unit;
步骤（2）若测试三相直流电阻参数，继电器板（4）自动切换与直流电阻测试模块相连接，并采用助磁法进行直流电阻参数测试； Step (2) If the three-phase DC resistance parameter is tested, the relay board (4) is automatically switched to connect with the DC resistance test module, and the DC resistance parameter test is performed using the magnetic method;
步骤（3）若测试变比参数，继电器板（4）自动切换与有载测试模块相连接，并通过车载PC机设置的参数，控制高压侧测试线接口单元对中压侧测试线接口单元或者高压侧测试线接口单元对低压侧测试线接口单元进行变比测量； Step (3) If the transformation ratio parameter is tested, the relay board (4) automatically switches to connect with the on-load test module, and controls the high-voltage side test line interface unit to the medium-voltage side test line interface unit or The high-voltage side test line interface unit performs transformation ratio measurement on the low-voltage side test line interface unit;
步骤（4）若测试有载参数，继电器板（4）自动切换与有载测试模块相连接，并控制低压侧测试线接口单元短接接地。 Step (4) If the on-load parameter is tested, the relay board (4) automatically switches to connect with the on-load test module, and controls the low-voltage side test line interface unit to be short-circuited to ground.
前述的车载一体式三相直流电阻、变比、有载综合测试装置的测试方法，其特征在于：步骤（2）采用助磁法进行直流电阻参数测试，为自动向高压侧测试线接口单元注磁，完成对低压侧测试线接口单元的直流电阻参数测量。 The aforementioned test method of the vehicle-mounted integrated three-phase DC resistance, transformation ratio, and on-load comprehensive test device is characterized in that: Step (2) adopts the magnetic method to test the DC resistance parameters, which is to automatically inject Magnetism, to complete the DC resistance parameter measurement of the low-voltage side test line interface unit.
本发明的有益效果是：本发明提供的车载一体式三相直流电阻、变比、有载综合测试装置及装置，测量过程自动，减少试验用时，通过有效的功能整合，占有空间小，符合车载的要求，减少接线次数，提高工作效率，降低劳动强度，一次接线完成对变比、有载、直流电阻三种试验，省时省力，具有良好的应用前景。 The beneficial effects of the present invention are: the vehicle-mounted integrated three-phase DC resistance, transformation ratio, and load comprehensive test device and device provided by the present invention have automatic measurement process, reduce test time, and take up a small space through effective function integration, conforming to the requirements of vehicle-mounted Requirements, reduce the number of wiring, improve work efficiency, reduce labor intensity, and complete three tests of transformation ratio, load, and DC resistance with one connection, saving time and effort, and has a good application prospect.
附图说明 Description of drawings
图1是本发明的车载一体式三相直流电阻、变比、有载综合测试装置的示意图。 Fig. 1 is a schematic diagram of the vehicle-mounted integrated three-phase DC resistance, transformation ratio and on-load comprehensive test device of the present invention.
图2是本发明的继电器板的连接示意图。 Fig. 2 is a connection diagram of the relay board of the present invention.
具体实施方式 Detailed ways
下面将结合说明书附图，对本发明作进一步的说明。 The present invention will be further described below in conjunction with the accompanying drawings.
如图1所示，一种车载一体式三相直流电阻、变比、有载综合测试装置，包括车载PC机、继电器控制及通信切换单元、三相直流电阻、变比、有载综合测试单元和用于切换测试线的继电器板，车载PC机通过继电器控制及通信信号切换单元与三相直流电阻、变比、有载综合测试单元进行测试数据通讯，继电器板与三相直流电阻、变比、有载综合测试单元的测试线相连接，利用车载PC机通过继电器控制及通信信号切换单元将三相直流电阻、变比、有载综合测单元的测试数据传输到车载PC机上，三相直流电阻、变比、有载综合测试单元包括分别与继电器板相连接的直流电阻测试模块、变比测试模块和有载测试模块，通过继电器板将三相直流电阻、变比、有载综合测试仪的测试线进行切换，选择不同测试参数所需要测试模块的测试线，继电器板包括高压侧测试线接口单元、中压侧测试线接口单元和低压侧测试线接口单元。 As shown in Figure 1, a vehicle-mounted integrated three-phase DC resistance, transformation ratio, on-load comprehensive test device includes a vehicle-mounted PC, relay control and communication switching unit, three-phase DC resistance, transformation ratio, and on-load comprehensive test unit And the relay board used to switch the test line, the on-board PC performs test data communication with the three-phase DC resistance, transformation ratio, and on-load comprehensive test unit through the relay control and communication signal switching unit, and the relay board communicates with the three-phase DC resistance, transformation ratio , The test line of the on-load comprehensive test unit is connected, and the test data of the three-phase DC resistance, transformation ratio, and on-load comprehensive test unit are transmitted to the on-board PC by using the vehicle-mounted PC through the relay control and communication signal switching unit, and the three-phase DC The resistance, transformation ratio and on-load comprehensive test unit includes a DC resistance test module, a transformation ratio test module and an on-load test module respectively connected to the relay board. The three-phase DC resistance, transformation ratio and on-load comprehensive tester The test line is switched, and the test line of the test module required for different test parameters is selected. The relay board includes a high-voltage side test line interface unit, a medium-voltage side test line interface unit and a low-voltage side test line interface unit.
如图2所示，继电器板上的K1、K6、K7、K11继电器将变比测试模块的测试线转换到继电器板的接口单元上，通过继电器板上的K2、K4、K14继电器将有载测试模块的测试线转换到继电器板的接口单元上，通过继电器板4上的K3、K5、K9、K10、K12、K13继电器将直流电阻测试模块的测试线转换到继电器板的接口单元上。 As shown in Figure 2, the K1, K6, K7, and K11 relays on the relay board transfer the test line of the ratio test module to the interface unit of the relay board, and the on-load test is performed through the K2, K4, and K14 relays on the relay board. The test line of the module is switched to the interface unit of the relay board, and the test line of the DC resistance test module is switched to the interface unit of the relay board through the K3, K5, K9, K10, K12, and K13 relays on the relay board 4.
基于上述的车载一体式三相直流电阻、变比、有载综合测试装置的测试方法，包括以下步骤， The test method based on the above-mentioned vehicle-mounted integrated three-phase DC resistance, transformation ratio, and on-load comprehensive test device includes the following steps,
第一步，将待测量变压器的高、中、低上的接线接好，并连接到对应的继电器板的高压侧测试线接口单元、中压侧测试线接口单元和低压侧测试线接口单元的电流和电压端； The first step is to connect the high, medium and low connections of the transformer to be measured, and connect them to the high-voltage side test line interface unit, the medium-voltage side test line interface unit and the low-voltage side test line interface unit of the corresponding relay board. current and voltage terminals;
第二步，若测试三相直流电阻参数，继电器板自动切换与直流电阻测试模块相连接，并采用助磁法进行直流电阻参数测试，即自动向高压侧测试线接口单元注磁，完成对低压侧测试线接口单元的直流电阻参数测量； In the second step, if the three-phase DC resistance parameters are tested, the relay board will automatically switch to connect with the DC resistance test module, and use the magnetic method to test the DC resistance parameters, that is, automatically inject magnetism into the interface unit of the high-voltage side test line to complete the low-voltage test. DC resistance parameter measurement of the side test line interface unit;
第三步，若测试变比参数，继电器板自动切换与有载测试模块相连接，并通过车载PC机设置的参数，控制高压侧测试线接口单元对中压侧测试线接口单元或者高压侧测试线接口单元对低压侧测试线接口单元进行变比测量； Step 3: If the transformation ratio parameter is tested, the relay board will automatically switch to connect with the on-load test module, and control the high-voltage side test line interface unit to the medium-voltage side test line interface unit or the high-voltage side test through the parameters set by the vehicle-mounted PC. The line interface unit performs transformation ratio measurement on the low-voltage side test line interface unit;
第四步，若测试有载参数，继电器板自动切换与有载测试模块相连接，并控制低压侧测试线接口单元短接接地，防止感应电动势干扰测量精度。 In the fourth step, if the on-load parameters are tested, the relay board will automatically switch to connect with the on-load test module, and control the low-voltage side test line interface unit to be short-circuited to ground to prevent the induced electromotive force from interfering with the measurement accuracy.
综上所述，本发明的车载一体式三相直流电阻、变比、有载综合测试装置及方法，全部接线只需要把主变变压器的高、中、低通过测试线一次性全部连接好，并通过操纵车载PC机件就可以完成变比、有载、直流电阻的测量工作，测量过程自动，减少试验用时，通过有效的功能整合，占有空间小，符合车载的要求，减少接线次数，提高工作效率，降低劳动强度，一次接线完成对变比、有载、直流电阻三种试验，省时省力，具有良好的应用前景。 To sum up, in the vehicle-mounted integrated three-phase DC resistance, transformation ratio, and on-load comprehensive testing device and method of the present invention, all wiring only needs to connect the high, medium, and low passing test lines of the main transformer transformer at one time. And by manipulating the on-board PC parts, the measurement of the transformation ratio, on-load, and DC resistance can be completed. The measurement process is automatic, reducing the test time. Through effective function integration, it occupies a small space, meets the requirements of the vehicle, reduces the number of wiring, and improves Work efficiency, reduce labor intensity, complete three tests of transformation ratio, load, and DC resistance with one connection, saving time and effort, and has a good application prospect.
以上显示和描述了本发明的基本原理、主要特征及优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。 The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (5)
- An onboard integrated three-phase dc resistance, no-load voltage ratio, the comprehensive test device of carrying is arranged, it is characterized in that: comprise vehicle-mounted PC, Control and communication switch unit, three-phase dc resistance, no-load voltage ratio, the relay board that carries the integration test unit and be used for the switch test line is arranged, described vehicle-mounted PC by Control and signal of communication switch unit and three-phase dc resistance, no-load voltage ratio, have and carry an integration test unit and carry out the test data communication, described relay board with three-phase dc resistance, no-load voltage ratio, have the p-wire of year integration test unit to be connected.
- Onboard integrated three-phase dc resistance according to claim 1, no-load voltage ratio, have and carry a comprehensive test device, it is characterized in that: described relay board comprises high-pressure side p-wire interface unit, medium voltage side p-wire interface unit and low-pressure side p-wire interface unit.
- Onboard integrated three-phase dc resistance according to claim 1, no-load voltage ratio, have and carry a comprehensive test device, it is characterized in that: described three-phase dc resistance, no-load voltage ratio, have the integration test unit of carrying to comprise direct current resistance test module, the no-load voltage ratio test module that is connected with relay board respectively and the test module of carrying is arranged.
- Based on onboard integrated three-phase dc resistance, the no-load voltage ratio of claim 1, the method for testing of carrying comprehensive test device is arranged, it is characterized in that: may further comprise the steps,Step (1) connects the wiring on the high, medium and low voltage sleeve pipe of transformer to be measured, and is connected to electric current and the voltage end of high-pressure side p-wire interface unit, medium voltage side p-wire interface unit and the low-pressure side p-wire interface unit of corresponding relay board;Step (2) is if test the three-phase dc resistance parameter, and relay board automaticallyes switch and is connected with the direct current resistance test module, and adopts the magnetic assist method to carry out the direct current resistance parameter testing;Step (3) is if test no-load voltage ratio parameter, relay board automaticallyes switch and is connected with the test module of carrying is arranged, and by the parameter that vehicle-mounted PC arranges, control high-pressure side p-wire interface unit centering and press side test line interface unit or high-pressure side p-wire interface unit that low-pressure side p-wire interface unit is carried out the no-load voltage ratio measurement;Step (4) is if test has the parameter of carrying, and relay board automaticallyes switch and is connected with the test module of carrying is arranged, and control low-pressure side p-wire interface unit short circuit ground connection.
- Onboard integrated three-phase dc resistance according to claim 4, no-load voltage ratio, the method for testing of carrying comprehensive test device is arranged, it is characterized in that: step (2) adopts the magnetic assist method to carry out the direct current resistance parameter testing, for annotating magnetic from trend high-pressure side p-wire interface unit, finish the direct current resistance parameter measurement to low-pressure side p-wire interface unit.
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| CN107192975A (en) * | 2017-06-06 | 2017-09-22 | 国家电网公司 | A kind of test device of transformer |
| CN108333448A (en) * | 2018-01-09 | 2018-07-27 | 国网安徽省电力公司阜阳供电公司 | Transformer routine test comprehensive test device |
| CN110542803A (en) * | 2018-05-28 | 2019-12-06 | 云南电网有限责任公司曲靖供电局 | Automatic change owner and become test system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698621A (en) * | 2013-09-05 | 2014-04-02 | 国家电网公司 | Vehicle-mounted transformer comprehensive test system |
| CN103698621B (en) * | 2013-09-05 | 2016-08-17 | 国家电网公司 | A kind of transformer vehicular integrated test system |
| CN105021905A (en) * | 2014-04-15 | 2015-11-04 | 国家电网公司 | Transformer direct current resistance and transformer group tester |
| CN104730353A (en) * | 2015-04-20 | 2015-06-24 | 国家电网公司 | Turns ratio measuring method for current transformer |
| CN106842008A (en) * | 2017-01-04 | 2017-06-13 | 保定天威集团特变电气有限公司 | A kind of method of test transformer loaded switch |
| CN106842008B (en) * | 2017-01-04 | 2020-07-03 | 保定天威集团特变电气有限公司 | Method for testing on-load switch of transformer |
| CN106771780A (en) * | 2017-02-07 | 2017-05-31 | 国网河南省电力公司新乡供电公司 | A kind of Winding in Power Transformer comprehensive test analysis device |
| CN107192975A (en) * | 2017-06-06 | 2017-09-22 | 国家电网公司 | A kind of test device of transformer |
| CN108333448A (en) * | 2018-01-09 | 2018-07-27 | 国网安徽省电力公司阜阳供电公司 | Transformer routine test comprehensive test device |
| CN110542803A (en) * | 2018-05-28 | 2019-12-06 | 云南电网有限责任公司曲靖供电局 | Automatic change owner and become test system |
| CN110542803B (en) * | 2018-05-28 | 2021-12-17 | 云南电网有限责任公司曲靖供电局 | Automatic change owner and become test system |
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Application publication date: 20130424 |