Patent ID: 11906552
Assignee: DIGITAL GRID RES. INST., CHINA SOUTHERN PWR. GRID
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 16:
17. The non-transitory computer-readable storage medium of claim 13, wherein the voltage measuring device further comprises a toggle switch, as well as a first electrode plate, a second electrode plate and a third electrode plate used to form the coupling capacitances, and the first electrode plate, the voltage dividing capacitor, the reference AC power supply, the second electrode plate, the toggle switch and the third electrode plate are connected sequentially, and wherein the adjusting the coupling capacitances comprises:
changing a state of the toggle switch, and obtaining adjusted coupling capacitances after change of the state of the toggle switch, the state of the toggle switch comprising an open state or a closed state.