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Power grid frequency testing method
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CN110389253A
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A kind of metering device and end metering device of three phase electrical parameters
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A kind of metering device and end metering device of single-phase electrical parameter
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A kind of novel current transformer of small-sized wide input range
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CN109342810A
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A kind of multi-user's intelligent electric meter system
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A kind of electric energy calculates display storage method and device
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A kind of energy source gateway for supporting multi-protocols
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A kind of energy consumption management system and management method
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CN108151911A
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A kind of optical fiber grating temperature-measuring system for high-tension switch cabinet
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CN108168719A
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A kind of wireless temperature measurement system for high-tension switch cabinet
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Wiring circuit of interference electricity protector
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Shell instrument power module circuit
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