Handheld portable current loop impedance and current type relay tester
The utility model discloses a handheld portable current loop impedance and current type relay tester, and relates to the field of power system test tools. Conventional relay protection single-phase testers are large in size, tedious in test operation, inconvenient to carry and transport in outdoor t...
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Format: | Patent |
Sprache: | chi ; eng |
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