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Partial discharge measuring system
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Effective leakage current measuring circuit
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Hot-line resistance measuring apparatus
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Electronic standard capacitor device
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Burden device for instrument transformer
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Tandelta measuring device for ground device
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Instrument for measuring tan delta without any influence of outside induced voltage
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Transformer
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Hot line insulation measuring apparatus
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Single-phase type hot-line tandelta measuring device and automatic warning device
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Method for restoring applied voltage vector from leakage current of nonlinear element and resistance-component current measuring instrument
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Integrated circuit power supply device for electro-luminescence driving
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Very-low-frequency high-voltage power supply
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Highly accurate impedance bridge
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Measuring and monitoring instrument for deterioration of insulator
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