Intelligent current and voltage transformer verifying unit
A technology of transformer calibration and voltage transformer, which is applied in the direction of measuring devices, instruments, and measuring electrical variables, etc., can solve single problems, and achieve the effect of convenient operation and high integration
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Embodiment 1
[0051] Such as Figure 7 As shown, for example, the transformation ratio of the measured CT, that is, the measured current transformer is 1A:0.1765V, then the standard current transformer selects the "1A" file, and the standard CT, that is, the standard current transformer, is set as follows: rated primary current "1A", Rated secondary voltage "4V" (default is 4V); Tested CT settings: rated primary current "1A", rated secondary voltage "0.1765V"; Figure 7 The rated primary current selection gear of the standard CT should be in accordance with Figure 4 The standard CT selection gear in the same.
[0052] For example, if the transformation ratio of the measured CT is 5A:3.53V, then the standard current transformer selects the "5A" file, Figure 7 Standard CT settings in: rated primary current "5A", rated secondary voltage "4V" (default is 4V); tested CT settings: rated primary current "5A", rated secondary voltage "3.53V".
Embodiment 2
[0054] Such as Figure 8 As shown, for example, the transformation ratio of the tested PT, that is, the tested voltage transformer is 100V:5V, then the standard voltage transformer selects the "100V" file, Figure 8 Standard PT settings in: rated primary voltage "100V", rated secondary voltage "4V" (default is 4V); tested PT settings: rated primary voltage "100", rated secondary voltage "5V". Figure 8 The rated primary current selection gear of the standard PT needs to match with Figure 4 The standard PT selection gear in the same.
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