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NARI dsa-3118c microcomputer protection and measurement and control device
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Pds-727a transformer protection measurement and control device for main protection of South independent transformer
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Differential protection pds-721a for main protection of South Main Transformer
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Nanzi pds-721b Microcomputer Line Protection Measurement and control device
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Current protection pds-721a of Nanzi section 3
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Measurement and control device for high voltage side protection of Nanzi pds-723 main transformer
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Nanzi transformer overload protection device pds-723a
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Nanzi pds-741 Microcomputer Line Protection Measurement and control device
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Current quick break protection pds-741a for Nanzi transmission line
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Pds-742 current quick break protection for optical differential protection of Nanzi transmission line
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Nanzi motor locked rotor protection pds-747a
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Measurement and control device for optical differential protection of Nanzi pds-742a transmission line
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Pds-741b digital line protection device for inverse time over current of Nanzi power plant
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Nanzi pds-751 Microcomputer Communication Manager
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South Auto reclosing protection pds-743 line protection device
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Low cycle load shedding protection pds-743a for Nanzi transmission line
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