KR101737072B1
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Resistance and current observation system of the ground line
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KR101722749B1
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Intelligent surge monitoring system
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KR101598416B1
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Resonant coil having air core for controlling streamer of tesla coil
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KR101443850B1
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Apparatus for detecting the damage of surge protector and automatically switching it
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KR101391823B1
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Automatically transfer switching overvoltage protection apparatus
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KR20150089416A
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Surge protect system of communication signal line using trigger control algorithm and method thereof
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KR101358916B1
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Ground rod having induction discharge plate
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KR101383011B1
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Varistor module for preventing thermal runway
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KR101390387B1
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System preventing thermal runway for varistor
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KR101400200B1
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Conduction wire having thunderbolt inducer emitting ionic
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KR101268355B1
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Failure prediction system of spd
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KR101333547B1
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Duplication protection system having auto switchable spd
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KR101303202B1
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Surge protective device using air gap ct and failure prediction system of spd using it
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KR101208457B1
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Ground rod having inside self-discharge
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KR101243241B1
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Surge protector having preventing varistor
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KR101208454B1
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Earthing apparatus for outdoor type
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KR101244756B1
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Surge protector having preventing thermal runway function
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KR101194242B1
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Surge protector having preventing thermal runway function
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KR101088770B1
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Ground rods for double discharge
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KR101061162B1
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System for measuring lightning current using condenser and system for accumulating energy using lightning current
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