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Pulse peak holding circuit and partial discharge monitoring circuit
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Gas collection box and transformer
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Single-phase earth fault positioning method and device for small current grounding system
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Power transmission line single-phase earth fault positioning method
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Fault location device for power transmission line
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Self-zero-adjusting integrating circuit, measuring circuit and method for measuring traveling wave of power transmission line
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Perceive the device of vocal print vibration inline diagnosis power transformer interior fault
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The mechanically stable malfunction monitoring diagnostic system of transformer
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