CN207730844U - A Portable Voltage Transformer Ratio Tester - Google Patents
A Portable Voltage Transformer Ratio Tester Download PDFInfo
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- CN207730844U CN207730844U CN201820165667.0U CN201820165667U CN207730844U CN 207730844 U CN207730844 U CN 207730844U CN 201820165667 U CN201820165667 U CN 201820165667U CN 207730844 U CN207730844 U CN 207730844U
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Abstract
Description
技术领域technical field
本实用新型涉及电压互感器变比测试仪技术领域，具体涉及一种便携式电压互感器变比测试仪。The utility model relates to the technical field of a voltage transformer transformation ratio tester, in particular to a portable voltage transformer transformation ratio tester.
背景技术Background technique
目前，新建或技改大修后的变电站在投运前仅进行电压互感器本体交接试验及互感器校验工作；而对于电压互感器的二次端子盒至电压互感器二次端子箱之间的电压回路并没有进行完整性和正确性验证工作，这种情况下会带来一定的安全隐患和电网风险；因此提出此方案，研制便携式电压互感器变比测试仪；用于新建或技改大修变电站，进行电压互感器的二次端子盒至电压互感器二次端子箱之间的电压回路完整性和正确性验证工作。At present, substations newly built or after technical renovation and overhaul only carry out the transfer test of the voltage transformer body and the verification of the transformer before putting into operation; The integrity and correctness of the voltage circuit have not been verified, which will bring certain safety hazards and grid risks; therefore, this proposal is proposed to develop a portable voltage transformer ratio tester; it is used for new construction or technical renovation and overhaul In the substation, verify the integrity and correctness of the voltage circuit between the secondary terminal box of the voltage transformer and the secondary terminal box of the voltage transformer.
发明内容Contents of the invention
针对现有技术的不足本实用新型提供一种便携式电压互感器变比测试仪，其特征在于：电源模块的L极一端通过无线遥控节点与测试接口相连通，电源模块的L极另一端通过电源总开关、FUSE与三角插头的L极相连通；电源模块的N极一端与测试接口相连通，电源模块的L极另一端与三角插头的N极相连通；电压监测表的一端与电源总开关相连通，其另一端与N极相连通；电源模块还与电源指示灯和遥控信号接收器相连通，遥控信号接收器还与遥控信号接收接收灯相连通。Aiming at the deficiencies of the prior art, the utility model provides a portable voltage transformer transformation ratio tester, which is characterized in that: one end of the L pole of the power module is connected to the test interface through a wireless remote control node, and the other end of the L pole of the power module is connected through the power supply The main switch and FUSE are connected to the L pole of the triangular plug; one end of the N pole of the power module is connected to the test interface, and the other end of the L pole of the power module is connected to the N pole of the triangular plug; one end of the voltage monitoring meter is connected to the main switch of the power supply. The other end is connected with the N pole; the power module is also connected with the power indicator light and the remote control signal receiver, and the remote control signal receiver is also connected with the remote control signal receiving light.
本实用新型是这样使用的：该装置供电电源为交流AC220V，向装置提供一个交流电源后，打开装置电源总开关，使电源模块和遥控模块带电。将测试接口L端（即无线遥控常开节点）接至电压互感器一次绕组的首端，N端接地。通过专用遥控器控制遥控节点的开断和闭合即可完成电压通断的控制，工作人员使用万用表在电压互感器二次端子箱测量电压值，即可判断电压回路的完整性和正确性，进而完成现场试验；其本实用新型结构简单，操作方便，省时省力，安全性高。The utility model is used like this: the power supply of the device is AC AC220V, after an AC power supply is provided to the device, the main switch of the device power supply is opened to make the power supply module and the remote control module electrified. Connect the L end of the test interface (that is, the normally open node of the wireless remote control) to the first end of the primary winding of the voltage transformer, and the N end to ground. The on-off control of the voltage can be completed by controlling the opening and closing of the remote control node through a special remote control. The staff can use a multimeter to measure the voltage value in the secondary terminal box of the voltage transformer to judge the integrity and correctness of the voltage circuit, and then The field test is completed; the utility model has the advantages of simple structure, convenient operation, time saving and labor saving, and high safety.
本实用新型的有益效果在于：The beneficial effects of the utility model are:
本实用新型专利的使用，有效完成了新建及技改大修变电站现场电压互感器的一次通压试验。此外，通过现场电压互感器的变比和测量所得的二次回路电压值，可完成电压互感器实际变比的检验。该装置发明之前，电力系统一次通压试验工作几乎为空白。该装置采用现场取用简单方便的交流220V供电，该装置结构小巧轻便，便于现场搬运和使用。另外，加入遥控模块控制电压通断，不仅安全性有了提升，还从一定程度上解放了劳动力。该装置的使用有效规避了由于电压互感器二次回路的缺陷而引起的停电事件，保障了电力系统的安全有效运行，提升了电网的安全性和可靠性，也避免了由于停电引起的荷负损失和经济损失。The use of the utility model patent has effectively completed a pressure test of the on-site voltage transformer of the substation for new construction and technical renovation and overhaul. In addition, the inspection of the actual transformation ratio of the voltage transformer can be completed through the transformation ratio of the field voltage transformer and the measured secondary circuit voltage value. Before the invention of this device, the first-time pressure test of the power system was almost blank. The device adopts the simple and convenient AC 220V power supply on site. The structure of the device is small and light, which is convenient for on-site handling and use. In addition, adding a remote control module to control the on-off of the voltage not only improves the safety, but also liberates the labor force to a certain extent. The use of this device effectively avoids power outages caused by defects in the secondary circuit of the voltage transformer, ensures the safe and effective operation of the power system, improves the safety and reliability of the power grid, and avoids the load caused by power outages. loss and economic loss.
附图说明Description of drawings
图1为本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
具体实施方式Detailed ways
实施例1，一种便携式电压互感器变比测试仪，其特征在于：电源模块的L极一端通过无线遥控节点与测试接口相连通，电源模块的L极另一端通过电源总开关、FUSE与三角插头的L极相连通；电源模块的N极一端与测试接口相连通，电源模块的L极另一端与三角插头的N极相连通；电压监测表的一端与电源总开关相连通，其另一端与N极相连通；电源模块还与电源指示灯和遥控信号接收器相连通，遥控信号接收器还与遥控信号接收接收灯相连通。Embodiment 1, a portable voltage transformer transformation ratio tester, is characterized in that: one end of the L pole of the power module is connected to the test interface through a wireless remote control node, and the other end of the L pole of the power module is connected to the delta The L pole of the plug is connected; one end of the N pole of the power module is connected with the test interface, and the other end of the L pole of the power module is connected with the N pole of the triangular plug; one end of the voltage monitoring meter is connected with the main switch of the power supply, and the other end It is connected with the N pole; the power module is also connected with the power indicator light and the remote control signal receiver, and the remote control signal receiver is also connected with the remote control signal receiving light.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820165667.0U CN207730844U (en) | 2018-01-31 | 2018-01-31 | A Portable Voltage Transformer Ratio Tester |
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| CN201820165667.0U CN207730844U (en) | 2018-01-31 | 2018-01-31 | A Portable Voltage Transformer Ratio Tester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196140A (en) * | 2018-01-31 | 2018-06-22 | 国网青海省电力公司西宁供电公司 | A kind of Portable voltage mutual inductor no-load voltage ratio tester |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196140A (en) * | 2018-01-31 | 2018-06-22 | 国网青海省电力公司西宁供电公司 | A kind of Portable voltage mutual inductor no-load voltage ratio tester |
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