In the prior art, a single smart electric meter capable of measuring a plurality of current loops simultaneously has been developed in the prior art. However, the prior art single smart electric meter for measuring a plurality of current loops is only able to measure current loops having a same phase (e.g., all being single-phase loops or all being three-phase loops) simultaneously. Therefore, use of the smart electric meter will be considerably restricted when there are current loops having different phases in an under-test environment. Moreover, for both the common electric meters and the smart electric meter described above, phases that can be measured by current measuring components thereof for measuring under-test current loops are all invariable. Therefore, the current measuring components can only be used in wires having particular phases, and likewise, the flexibility in measuring the current loops is relatively low.
技術摘要-英文
An electric power monitor device is provided. The electric power monitor device is electrically connected to an alternating current source which provides electric power to a plurality of under test current loops. The electric power monitor device comprises a voltage input interface, a voltage measuring unit, a plurality of current measuring components and a processing unit. The voltage input interface is configured to receive an input power source from the alternating current source. The voltage measuring unit is configured to generate voltage values based on the input power source. The current measuring components are capable of adjusting phase configuration based on different phases of the wires of the current loops, and are configured to determine current values of the current loops. The processing unit is configured to calculate an electric power monitor value according to the voltage value and the current values.
In the prior art, a single smart electric meter capable of measuring a plurality of current loops simultaneously has been developed in the prior art. However, the prior art single smart electric meter for measuring a plurality of current loops is only able to measure current loops having a same phase (e.g., all being single-phase loops or all being three-phase loops) simultaneously. Therefore, use of the smart electric meter will be considerably restricted when there are current loops having different phases in an under-test environment. Moreover, for both the common electric meters and the smart electric meter described above, phases that can be measured by current measuring components thereof for measuring under-test current loops are all invariable. Therefore, the current measuring components can only be used in wires having particular phases, and likewise, the flexibility in measuring the current loops is relatively low.
技術摘要-英文
An electric power monitor device is provided. The electric power monitor device is electrically connected to an alternating current source which provides electric power to a plurality of under test current loops. The electric power monitor device comprises a voltage input interface, a voltage measuring unit, a plurality of current measuring components and a processing unit. The voltage input interface is configured to receive an input power source from the alternating current source. The voltage measuring unit is configured to generate voltage values based on the input power source. The current measuring components are capable of adjusting phase configuration based on different phases of the wires of the current loops, and are configured to determine current values of the current loops. The processing unit is configured to calculate an electric power monitor value according to the voltage value and the current values.