CN204789785U - Portable intelligent substation relay protection testing arrangement - Google Patents
Portable intelligent substation relay protection testing arrangement Download PDFInfo
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Abstract
一种便携式智能变电站继电保护测试装置，包括长导线、测试箱、钳形相位伏安表,所述长导线用于将电压互感器二次绕组的电压输入至测试箱，所述测试箱用于测试长导线输入的电压并显示该电压值，同时将该电压提供给钳形相位伏安表，所述钳形相位伏安表用于测量测试箱提供的电压及二次绕组的其他参数；通过长导线将相距较远的电压互感器的二次绕组端的电压值输入测试箱，再由测试箱将该电压提供给钳形相位伏安表，如此钳形相位伏安表可以同时测量需要检测的二次绕组侧的电压和电流及其他参数，高效完成对智能变电站中继电保护装置的测试。
A portable intelligent substation relay protection testing device, including a long wire, a test box, and a clamp phase voltammeter, the long wire is used to input the voltage of the secondary winding of a voltage transformer to the test box, and the test box is used When testing the voltage input by the long wire and displaying the voltage value, the voltage is provided to the clamp phase voltammeter at the same time, and the clamp phase voltammeter is used to measure the voltage provided by the test box and other parameters of the secondary winding; The voltage value of the secondary winding terminal of the voltage transformer far away is input into the test box through a long wire, and then the test box provides the voltage to the clamp phase voltammeter, so that the clamp phase voltammeter can simultaneously measure the required detection The voltage, current and other parameters of the secondary winding side of the transformer can efficiently complete the test of the relay protection device in the smart substation.
Description
技术领域 technical field
本实用新型涉及智能变电站中的继电保护监测技术领域，尤其涉及一种便携式智能变电站继电保护测试装置。 The utility model relates to the technical field of relay protection monitoring in intelligent substations, in particular to a portable intelligent substation relay protection testing device.
背景技术 Background technique
传统变电站，电流互感器和电压互感器通常布置在户外开关场或户内开关柜，互感器感应到的电流和电压等数据通过二次控制电缆在继电保护室内汇集，从而提供给相关的继电保护装置，在通过钳形相位伏安表测量相应参数。 In traditional substations, current transformers and voltage transformers are usually arranged in outdoor switch yards or indoor switch cabinets. Data such as current and voltage sensed by the transformers are collected in the relay protection room through secondary control cables to provide relevant relays. For the electrical protection device, the corresponding parameters are measured by a clamp-on phase voltammeter.
随着智能变电站的普及，由于智能继电保护装置通过光纤组网，电流、电压等模拟数据没有在一处汇集，相距较远，无法通过钳形相位伏安表在一处采集测试。 With the popularization of smart substations, because the smart relay protection devices are networked through optical fibers, the analog data such as current and voltage are not collected in one place, and are far away from each other, so they cannot be collected and tested in one place by clamp-on phase voltammeters.
发明内容 Contents of the invention
有必要提出一种适用于智能变电站的、能够同时测量电压、电流等各种数据的便携式智能变电站继电保护测试装置。 It is necessary to propose a portable smart substation relay protection test device that is suitable for smart substations and can simultaneously measure various data such as voltage and current.
一种便携式智能变电站继电保护测试装置，包括长导线、测试箱、钳形相位伏安表,所述长导线将电压互感器二次绕组的电压输入至测试箱，所述测试箱测试长导线输入的电压并显示该电压值，同时将该电压提供给钳形相位伏安表，所述钳形相位伏安表测量测试箱提供的电压及被测主变压器的二次绕组的其他参数；所述测试箱包括箱体、设置在箱体内的面板及设置在面板上的测试电路，所述测试电路包括第一测试装置、第二测试装置、第三测试装置及负极接入装置，第一测试装置、第二测试装置、第三测试装置与负极接入装置电性连接；第一测试装置包括母线电压正极输入端、开关、第一电压表及测试电压正极输出端，母线电压正极输入端的一端与开关的一端电性连接，母线电压正极输入端的另一端外露在面板上以与外界电压接入长导线连接，开关的另一端与测试电压正极输出端的一端电性连接，测试电压正极输出端的另一端外露在面板上以与钳形相位伏安表电性连接，第一电压表的正极端与开关的另一端电性连接，第一电压表的负极端与负极接入装置电性连接；第二测试装置包括母线电压正极输入端、开关、第二电压表及测试电压正极输出端，母线电压正极输入端的一端与开关的一端电性连接，母线电压正极输入端的另一端外露在面板上以与外界电压接入长导线连接，开关的另一端与测试电压正极输出端的一端电性连接，测试电压正极输出端的另一端外露在面板上以与钳形相位伏安表电性连接，第二电压表的正极端与开关的另一端电性连接，第二电压表的负极端与负极接入装置电性连接；第三测试装置包括母线电压正极输入端、开关、第三电压表及测试电压正极输出端，母线电压正极输入端的一端与开关的一端电性连接，母线电压正极输入端的另一端外露在面板上以与外界电压接入长导线连接，开关的另一端与测试电压正极输出端的一端电性连接，测试电压正极输出端的另一端外露在面板上以与钳形相位伏安表电性连接，第三电压表的正极端与开关的另一端电性连接，第三电压表的负极端与负极接入装置电性连接；负极接入装置包括母线电压负极输入端及测试电压负极输出端，母线电压负极输入端、测试电压负极输出端通过长导线相互电性连接，第一电压表、第二电压表及第三电压表的负极端与母线电压负极输入端、测试电压负极输出端之间的长导线电性连接。 A portable intelligent substation relay protection test device, including a long wire, a test box, and a clamp phase voltammeter, the long wire inputs the voltage of the secondary winding of a voltage transformer to the test box, and the test box tests the long wire Input the voltage and display the voltage value, and provide the voltage to the clamp phase voltammeter at the same time, and the clamp phase voltammeter measures the voltage provided by the test box and other parameters of the secondary winding of the main transformer under test; The test box includes a box body, a panel arranged in the box and a test circuit arranged on the panel. The test circuit includes a first test device, a second test device, a third test device and a negative electrode access device. The first test The device, the second test device, and the third test device are electrically connected to the negative pole access device; the first test device includes a positive input terminal of the bus voltage, a switch, a first voltmeter, and a positive output terminal of the test voltage, and one end of the positive input terminal of the bus voltage It is electrically connected with one end of the switch, and the other end of the positive input end of the bus voltage is exposed on the panel to connect with the long wire connected to the external voltage. The other end of the switch is electrically connected with one end of the positive output end of the test voltage, and the other end of the positive output end of the test voltage One end is exposed on the panel to be electrically connected to the clamp phase voltammeter, the positive end of the first voltmeter is electrically connected to the other end of the switch, and the negative end of the first voltmeter is electrically connected to the negative access device; the second The second test device includes a positive input terminal of the bus voltage, a switch, a second voltmeter and a positive output terminal of the test voltage, one end of the positive input terminal of the bus voltage is electrically connected to one end of the switch, and the other end of the positive input terminal of the bus voltage is exposed on the panel to communicate with the test voltage. The external voltage is connected to a long wire, the other end of the switch is electrically connected to one end of the positive output end of the test voltage, and the other end of the positive output end of the test voltage is exposed on the panel to be electrically connected to the clamp phase voltammeter, and the second voltmeter The positive terminal of the second voltmeter is electrically connected to the other end of the switch, and the negative terminal of the second voltmeter is electrically connected to the negative pole access device; the third test device includes the positive input terminal of the bus voltage, the switch, the third voltmeter and the positive output of the test voltage One end of the positive input end of the bus voltage is electrically connected to one end of the switch, the other end of the positive input end of the bus voltage is exposed on the panel to connect to the external voltage with a long wire, and the other end of the switch is electrically connected to one end of the positive output end of the test voltage. Connection, the other end of the test voltage positive output end is exposed on the panel to be electrically connected to the clamp phase voltammeter, the positive end of the third voltmeter is electrically connected to the other end of the switch, the negative end of the third voltmeter is connected to the negative The access device is electrically connected; the negative access device includes a bus voltage negative input terminal and a test voltage negative output terminal, the bus voltage negative input terminal and the test voltage negative output terminal are electrically connected to each other through a long wire, the first voltmeter, the second The negative ends of the voltmeter and the third voltmeter are electrically connected to the long wire between the negative input end of the bus voltage and the negative output end of the test voltage.
优选的，面板的上表面设置有钳形相位伏安表放置区。 Preferably, the upper surface of the panel is provided with a clamp phase voltammeter placement area.
优选的，所述第一测试装置还包括保险丝，保险丝的一端与第一测试装置的开关的另一端电性连接，保险丝的另一端与第一测试装置的测试电压正极输出端的一端电性连接。 Preferably, the first test device further includes a fuse, one end of the fuse is electrically connected to the other end of the switch of the first test device, and the other end of the fuse is electrically connected to one end of the test voltage positive output end of the first test device.
优选的，所述第二测试装置还包括保险丝，保险丝的一端与第二测试装置的开关的另一端电性连接，保险丝的另一端与第二测试装置的测试电压正极输出端的一端电性连接。 Preferably, the second test device further includes a fuse, one end of the fuse is electrically connected to the other end of the switch of the second test device, and the other end of the fuse is electrically connected to one end of the test voltage positive output end of the second test device.
优选的，所述第三测试装置还包括保险丝，保险丝的一端与第三测试装置的开关的另一端电性连接，保险丝的另一端与第三测试装置的测试电压正极输出端的一端电性连接。 Preferably, the third test device further includes a fuse, one end of the fuse is electrically connected to the other end of the switch of the third test device, and the other end of the fuse is electrically connected to one end of the test voltage positive output end of the third test device.
上述便携式智能变电站继电保护测试装置中，测试箱置于便于钳形相位伏安表测量电流的地方，通过长导线将相距较远的电压互感器的二次绕组端的电压值输入测试箱，再由测试箱将该电压提供给钳形相位伏安表，如此钳形相位伏安表可以同时测量需要检测的二次绕组侧的电压和电流及其他参数，高效完成对智能变电站中继电保护装置的测试。 In the above-mentioned portable intelligent substation relay protection test device, the test box is placed in a place where the clamp phase voltammeter is convenient for measuring current, and the voltage value of the secondary winding end of the voltage transformer far away is input into the test box through a long wire, and then The test box provides the voltage to the clamp phase voltammeter, so that the clamp phase voltammeter can simultaneously measure the voltage, current and other parameters of the secondary winding side that need to be detected, and efficiently complete the relay protection device of the smart substation. test.
附图说明 Description of drawings
图1为便携式智能变电站继电保护测试装置的测试箱的结构示意图。 Fig. 1 is a schematic structural diagram of a test box of a portable smart substation relay protection test device.
图2为便携式智能变电站继电保护测试装置的钳形相位伏安表的结构示意图。 Fig. 2 is a schematic structural diagram of a clamp-on phase voltammeter of a portable smart substation relay protection test device.
图3为便携式智能变电站继电保护测试装置的测试箱的测试电路图。 Fig. 3 is a test circuit diagram of a test box of a portable smart substation relay protection test device.
图中：便携式智能变电站继电保护测试装置的测试箱10、箱体101、面板102、钳形相位伏安表放置区103、钳形相位伏安表20。 In the figure: a test box 10 , a box body 101 , a panel 102 , a clamp phase voltammeter placement area 103 , and a clamp phase voltammeter 20 of a portable smart substation relay protection testing device.
具体实施方式 Detailed ways
参见图1～图3，便携式智能变电站继电保护测试装置，包括长导线、测试箱10、钳形相位伏安表20,长导线为两端具有插头的黄、绿、红、黑色的四组标准电压测试线，长导线将电压互感器二次绕组的电压输入至测试箱，测试箱测试长导线输入的电压并显示该电压值，同时将该电压提供给钳形相位伏安表，钳形相位伏安表测量测试箱提供的电压及被测主变压器的二次绕组的其他参数。 Referring to Figures 1 to 3, the portable smart substation relay protection test device includes long wires, a test box 10, and a clamp phase voltammeter 20. The long wires are four sets of yellow, green, red, and black with plugs at both ends. Standard voltage test wire, the long wire inputs the voltage of the secondary winding of the voltage transformer to the test box, the test box tests the voltage input by the long wire and displays the voltage value, and at the same time provides the voltage to the clamp phase voltammeter, the clamp phase Measure the voltage provided by the test box and other parameters of the secondary winding of the main transformer under test with a potential voltammeter.
其中，测试箱包括箱体101、设置在箱体内的面板102及设置在面板上的测试电路，面板102的上表面还设置有钳形相位伏安表放置区103,测试电路包括第一测试装置、第二测试装置、第三测试装置及负极接入装置，第一测试装置、第二测试装置、第三测试装置与负极接入装置电性连接； Wherein, the test box includes a box body 101, a panel 102 arranged in the box and a test circuit arranged on the panel, the upper surface of the panel 102 is also provided with a clamp phase voltammeter placement area 103, and the test circuit includes a first test device , the second test device, the third test device and the negative connection device, the first test device, the second test device, and the third test device are electrically connected to the negative connection device;
第一测试装置包括母线电压正极输入端UA、开关K1、第一电压表V1及测试电压正极输出端Ua，母线电压正极输入端UA的一端与开关K1的一端电性连接，母线电压正极输入端UA的另一端外露在面板102上以与外界电压接入长导线连接，开关K1的另一端与测试电压正极输出端Ua的一端电性连接，测试电压正极输出端Ua的另一端外露在面板102上以与钳形相位伏安表电性连接，第一电压表V1的正极端与开关K1的另一端电性连接，第一电压表V1的负极端与负极接入装置电性连接； The first test device includes a bus voltage positive input terminal UA, a switch K1, a first voltmeter V1 and a test voltage positive output terminal Ua, one end of the bus voltage positive input terminal UA is electrically connected to one end of the switch K1, and the bus voltage positive input terminal The other end of UA is exposed on the panel 102 to be connected with the external voltage by a long wire, the other end of the switch K1 is electrically connected to one end of the test voltage positive output terminal Ua, and the other end of the test voltage positive output terminal Ua is exposed on the panel 102 The above is electrically connected to the clamp phase voltammeter, the positive end of the first voltmeter V1 is electrically connected to the other end of the switch K1, and the negative end of the first voltmeter V1 is electrically connected to the negative access device;
第二测试装置包括母线电压正极输入端UB、开关K2、第二电压表V2及测试电压正极输出端Ub，母线电压正极输入端UB的一端与开关K2的一端电性连接，母线电压正极输入端UB的另一端外露在面板102上以与外界电压接入长导线连接，开关K2的另一端与测试电压正极输出端Ub的一端电性连接，测试电压正极输出端Ub的另一端外露在面板102上以与钳形相位伏安表电性连接，第二电压表V2的正极端与开关K2的另一端电性连接，第二电压表V2的负极端与负极接入装置电性连接； The second test device includes a bus voltage positive input terminal UB, a switch K2, a second voltmeter V2 and a test voltage positive output terminal Ub, one end of the bus voltage positive input terminal UB is electrically connected to one end of the switch K2, and the bus voltage positive input terminal The other end of UB is exposed on the panel 102 to be connected with the external voltage by a long wire, the other end of the switch K2 is electrically connected to one end of the test voltage positive output terminal Ub, and the other end of the test voltage positive output terminal Ub is exposed on the panel 102 The above is electrically connected to the clamp phase voltammeter, the positive end of the second voltmeter V2 is electrically connected to the other end of the switch K2, and the negative end of the second voltmeter V2 is electrically connected to the negative access device;
第三测试装置包括母线电压正极输入端UC、开关K3、第三电压表V3及测试电压正极输出端Uc，母线电压正极输入端UC的一端与开关K3的一端电性连接，母线电压正极输入端UC的另一端外露在面板102上以与外界电压接入长导线连接，开关K3的另一端与测试电压正极输出端Uc的一端电性连接，测试电压正极输出端Uc的另一端外露在面板102上以与钳形相位伏安表电性连接，第三电压表V3的正极端与开关K3的另一端电性连接，第三电压表V3的负极端与负极接入装置电性连接； The third test device includes a bus voltage positive input terminal UC, a switch K3, a third voltmeter V3 and a test voltage positive output terminal Uc, one end of the bus voltage positive input terminal UC is electrically connected to one end of the switch K3, and the bus voltage positive input terminal The other end of UC is exposed on the panel 102 to be connected to the external voltage with a long wire, the other end of the switch K3 is electrically connected to one end of the test voltage positive output terminal Uc, and the other end of the test voltage positive output terminal Uc is exposed on the panel 102 The above is electrically connected to the clamp phase voltammeter, the positive end of the third voltmeter V3 is electrically connected to the other end of the switch K3, and the negative end of the third voltmeter V3 is electrically connected to the negative access device;
负极接入装置包括母线电压负极输入端UN及测试电压负极输出端Un，母线电压负极输入端UN、测试电压负极输出端Un通过长导线相互电性连接，第一电压表V1、第二电压表V2及第三电压表V3的负极端与母线电压负极输入端UN、测试电压负极输出端Un之间的长导线电性连接。 The negative connection device includes bus voltage negative input terminal UN and test voltage negative output terminal Un. Bus voltage negative input terminal UN and test voltage negative output terminal Un are electrically connected to each other through long wires. The first voltmeter V1 and the second voltmeter The negative terminals of V2 and the third voltmeter V3 are electrically connected to the long wire between the bus voltage negative input terminal UN and the test voltage negative output terminal Un.
进一步的,第一测试装置还包括保险丝FU1，保险丝FU1的一端与第一测试装置的开关K1的另一端电性连接，保险丝FU1的另一端与第一测试装置的测试电压正极输出端Ua的一端电性连接。第二测试装置还包括保险丝FU2，保险丝FU2的一端与第二测试装置的开关K2的另一端电性连接，保险丝FU2的另一端与第二测试装置的测试电压正极输出端Ub的一端电性连接。第三测试装置还包括保险丝FU3，保险丝FU3的一端与第三测试装置的开关K3的另一端电性连接，保险丝FU3的另一端与第三测试装置的测试电压正极输出端Uc的一端电性连接。在第一测试装置、第二测试装置、第三测试装置中串联保险丝，当测试电路中电压异常时，保险丝会断开，保证测试电路或工作人员的安全。 Further, the first test device also includes a fuse FU1, one end of the fuse FU1 is electrically connected to the other end of the switch K1 of the first test device, and the other end of the fuse FU1 is connected to one end of the test voltage positive output terminal Ua of the first test device electrical connection. The second test device also includes a fuse FU2, one end of the fuse FU2 is electrically connected to the other end of the switch K2 of the second test device, and the other end of the fuse FU2 is electrically connected to one end of the test voltage positive output terminal Ub of the second test device . The third test device also includes a fuse FU3, one end of the fuse FU3 is electrically connected to the other end of the switch K3 of the third test device, and the other end of the fuse FU3 is electrically connected to one end of the test voltage positive output terminal Uc of the third test device . A fuse is connected in series in the first test device, the second test device and the third test device, and when the voltage in the test circuit is abnormal, the fuse will be disconnected to ensure the safety of the test circuit or workers.
使用便携式智能变电站继电保护测试装置测试时，例如,对某110千伏变电站内主变压器三侧进行相量测试，使用长导线将主变压器的110KV高压侧、35KV中压侧、10KV低压侧的电压互感器二次绕组端分别与测试箱的电压输入端UA、UB、UC连接，UN端接地。 When using a portable intelligent substation relay protection test device for testing, for example, to conduct a phasor test on the three sides of the main transformer in a 110 kV substation, use long wires to connect the 110KV high voltage side, 35KV medium voltage side and 10KV low voltage side of the main transformer The secondary winding terminals of the voltage transformer are respectively connected to the voltage input terminals UA, UB and UC of the test box, and the UN terminal is grounded.
当需要测试主变压器的110KV高压侧的电压与电流的关系时，闭合第一测试装置的第一开关K1，第一测试装置工作，第一电压表V1显示主变压器的110KV高压侧的电压值，将钳形相位伏安表的电压表笔接入测试箱的测试电压正极输出端Ua、测试电压负极输出端Un，将钳形相位伏安表的电流钳与主变压器的110KV高压侧的电流互感器二次绕组端连接，即可测出主变压器的110KV高压侧的电压与主变压器的110KV高压侧的电流的相位关系；将钳形相位伏安表的电流钳与主变压器的35KV中压侧的电流互感器二次绕组端连接，即可测出主变压器的110KV高压侧的电压与主变压器的35KV中压侧的电流的相位关系；将钳形相位伏安表的电流钳与主变压器的10KV低压侧的电流互感器二次绕组端连接，即可测出主变压器的110KV高压侧的电压与主变压器的10KV低压侧的电流的相位关系； When the relationship between the voltage and current of the 110KV high voltage side of the main transformer needs to be tested, the first switch K1 of the first test device is closed, the first test device works, and the first voltmeter V1 displays the voltage value of the 110KV high voltage side of the main transformer, Connect the voltmeter lead of the clamp phase voltammeter to the test voltage positive output terminal Ua and the test voltage negative output terminal Un of the test box, connect the current clamp of the clamp phase voltammeter to the current transformer of the 110KV high voltage side of the main transformer The phase relationship between the voltage on the 110KV high-voltage side of the main transformer and the current on the 110KV high-voltage side of the main transformer can be measured by connecting the secondary winding end; Connect the secondary winding end of the current transformer to measure the phase relationship between the voltage on the 110KV high-voltage side of the main transformer and the current on the 35KV medium-voltage side of the main transformer; connect the current clamp of the clamp phase voltammeter to the 10KV The secondary winding terminal of the current transformer on the low-voltage side is connected, and the phase relationship between the voltage on the 110KV high-voltage side of the main transformer and the current on the 10KV low-voltage side of the main transformer can be measured;
当需要测试主变压器的35KV中压侧的电压与电流的关系时，闭合第二测试装置的第二开关K2，第二测试装置工作，第二电压表V2显示主变压器的35KV中压侧的电压值，将钳形相位伏安表的电压表笔接入测试箱的测试电压正极输出端Ub、测试电压负极输出端Un，将钳形相位伏安表的电流钳与主变压器的110KV高压侧的电流互感器二次绕组端连接，即可测出主变压器的35KV中压侧的电压与主变压器的110KV高压侧的电流的相位关系；将钳形相位伏安表的电流钳与主变压器的35KV中压侧的电流互感器二次绕组端连接，即可测出主变压器的35KV中压侧的电压与主变压器的35KV中压侧的电流的相位关系；将钳形相位伏安表的电流钳与主变压器的10KV低压侧的电流互感器二次绕组端连接，即可测出主变压器的35KV中压侧的电压与主变压器的10KV低压侧的电流的相位关系； When it is necessary to test the relationship between voltage and current on the 35KV medium voltage side of the main transformer, close the second switch K2 of the second test device, the second test device will work, and the second voltmeter V2 will display the voltage on the 35KV medium voltage side of the main transformer value, connect the voltmeter lead of the clamp phase voltammeter to the test voltage positive output terminal Ub and the test voltage negative output terminal Un of the test box, connect the current clamp of the clamp phase voltammeter to the current of the 110KV high voltage side of the main transformer Connect the secondary winding end of the transformer to measure the phase relationship between the voltage on the 35KV medium voltage side of the main transformer and the current on the 110KV high voltage side of the main transformer; Connect the secondary winding end of the current transformer on the voltage side to measure the phase relationship between the voltage on the 35KV medium voltage side of the main transformer and the current on the 35KV medium voltage side of the main transformer; connect the current clamp of the clamp phase voltammeter to the The secondary winding terminal of the current transformer on the 10KV low-voltage side of the main transformer is connected, and the phase relationship between the voltage on the 35KV medium-voltage side of the main transformer and the current on the 10KV low-voltage side of the main transformer can be measured;
当需要测试主变压器的10KV低压侧的电压与电流的关系时，闭合第三测试装置的第三开关K3，第三测试装置工作，第三电压表V3显示主变压器的10KV低压侧的电压值，将钳形相位伏安表的电压表笔接入测试箱的测试电压正极输出端Uc、测试电压负极输出端Un，将钳形相位伏安表的电流钳与主变压器的110KV高压侧的电流互感器二次绕组端连接，即可测出主变压器的10KV低压侧的电压与主变压器的110KV高压侧的电流的相位关系；将钳形相位伏安表的电流钳与主变压器的35KV中压侧的电流互感器二次绕组端连接，即可测出主变压器的10KV低压侧的电压与主变压器的35KV中压侧的电流的相位关系；将钳形相位伏安表的电流钳与主变压器的10KV低压侧的电流互感器二次绕组端连接，即可测出主变压器的10KV低压侧的电压与主变压器的10KV低压侧的电流的相位关系。 When the relationship between the voltage and current of the 10KV low-voltage side of the main transformer needs to be tested, the third switch K3 of the third test device is closed, the third test device works, and the third voltmeter V3 displays the voltage value of the 10KV low-voltage side of the main transformer. Connect the voltmeter lead of the clamp phase voltammeter to the test voltage positive output terminal Uc and the test voltage negative output terminal Un of the test box, connect the current clamp of the clamp phase voltammeter to the current transformer of the 110KV high voltage side of the main transformer Connect the secondary winding end to measure the phase relationship between the voltage on the 10KV low-voltage side of the main transformer and the current on the 110KV high-voltage side of the main transformer; Connect the secondary winding end of the current transformer to measure the phase relationship between the voltage on the 10KV low-voltage side of the main transformer and the current on the 35KV medium-voltage side of the main transformer; connect the current clamp of the clamp phase voltammeter to the 10KV The secondary winding terminal of the current transformer on the low-voltage side is connected, and the phase relationship between the voltage on the 10KV low-voltage side of the main transformer and the current on the 10KV low-voltage side of the main transformer can be measured.
电压表显示的电压值可以帮助工作人员判断测试电路有无故障，若电压表显示电压数值有误，工作人员可断开对应开关，检查线路，避免钳形相位伏安表测量的电压或电流有误。 The voltage value displayed by the voltmeter can help the staff judge whether there is a fault in the test circuit. If the voltage value displayed by the voltmeter is wrong, the staff can disconnect the corresponding switch and check the line to avoid the voltage or current measured by the clamp phase voltammeter. error.
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| CN107037315A (en) * | 2017-04-16 | 2017-08-11 | 赵洁 | A kind of large-scale workshop inspector uses machine winding detection means |
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| CN106093521A (en) * | 2016-06-17 | 2016-11-09 | 广州极飞电子科技有限公司 | Electric current detecting method, device and battery management system |
| CN107037315A (en) * | 2017-04-16 | 2017-08-11 | 赵洁 | A kind of large-scale workshop inspector uses machine winding detection means |
| CN107037315B (en) * | 2017-04-16 | 2019-09-20 | 赵浩 | A kind of large size workshop inspector machine winding detection device |
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