Multi-function power meter is a measuring meter. The meter is only used for display, monitoring, etc. It can be reset to resettable and changeable ratio. The accuracy level of CT and PT for meter access is also measurement level (usually 0.5), while the meter meter (usually called a power meter) cannot be cleared and cannot be reset and cannot be changed (the meter's manufacturer can only provide the professional software for the power company, so the meter needs to be certified by the power company. The accuracy grades of CTs and PTs that are accessed are also measured (usually 0.2s or 0.2). Therefore, the meter (power meter) and measurement meter (multi-function power meter, ammeter, voltmeter, etc.) cannot replace each other.
another:
1: The CT and PT accessed by the protection device are protection levels (such as PT3P and CT5P20), and they cannot be replaced or mixed with measurement and measurement.
2: Because the power meter requires the power company to review, so try to purchase common well-known power meter brands, such as Changsha Wasion, or purchase the power company designated brand, to avoid power companies to find trouble.
another:
1: The CT and PT accessed by the protection device are protection levels (such as PT3P and CT5P20), and they cannot be replaced or mixed with measurement and measurement.
2: Because the power meter requires the power company to review, so try to purchase common well-known power meter brands, such as Changsha Wasion, or purchase the power company designated brand, to avoid power companies to find trouble.
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