Wireless telemetering function of vector analyzer for relay

Zc-650 relay protection loop vector analyzer is also known as six phase protection loop vector tester and loop vector analyzer. It is composed of two hand-held measuring terminals, which can measure six circuit voltage, current amplitude and phase wirelessly and synchronously, and can also be used as a three-phase volt ampere phase meter alone.

 

 

This paper introduces the wireless telemetry function of the relay protection loop vector analyzer. This function is used to measure six phase voltage and six phase current synchronously. It can select a variety of vector display, and can select native UA, IA, slave UA, ia as phase reference. It can also test the signal quality of wireless communication. The interface is as follows:

1、 Communication test function

 

This function is used to test the wireless communication signal quality between the local computer and the slave, between the local computer and the repeater (optional). Test results are displayed in the title bar as icons. The antenna icon on the left represents the wireless communication signal quality between the local computer and the slave computer, and the antenna icon on the right represents the wireless communication signal quality between the local computer and the repeater. The icon indicates that the signal quality is excellent, the icon indicates that the signal quality is good, and the icon indicates that the signal quality is not up to standard. Only when the communication signal quality is good, or the communication signal quality is good, the test can be completed smoothly. If the signal quality is not up to standard, adjust the antenna position or replace the antenna.

 

Press F1 to start the communication test. The instrument first tests the wireless signal quality between the local unit and the repeater, and then tests the wireless signal quality between the local unit and the slave unit. As long as one signal quality is excellent or good, the test can be carried out smoothly. The green light in the title bar flashes to indicate that the data is sent wirelessly, as shown in the icon. The flashing red light indicates that the wireless data is received by the machine, as shown in the icon. The gray light indicates that there is no wireless data transmission at present. As shown in the icon.

 

 

2、 Radio telemetry function

 

Press F2 key to start wireless telemetry. If there is no wireless signal quality test before this, the wireless communication quality test will be started automatically, and then the wireless telemetry will be started. The interface continuously refreshes the measurement results until the F2 key is pressed again to stop the test. On the left side of the interface, the currently selected test results are displayed with vectors. On the right side, the amplitude and phase of the selected test results are displayed in a list. On the vector diagram, the thick and thin arrows indicate that two groups of vectors are respectively displayed. The thick and thin yellow icons on the right side of the list display indicate that the electrical parameter vector display of this group is a thick or thin arrow. On the vector graph display setting page, set the vector display mode, including angle positive direction, zero sequence position, and reference value angle. Users can set it according to their own habits.

 

 

 

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