Anti -thunder -type exchanges three -phase voltage sensor
The utility model relates to an anti -thunder -type sensor field, specific anti -thunder -type exchanges three -phase voltage sensor that says so. The utility model discloses a lightning protection circuit, the series connection is between ac circuit's live wire and zero line for prevent thunde...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model relates to an anti -thunder -type sensor field, specific anti -thunder -type exchanges three -phase voltage sensor that says so. The utility model discloses a lightning protection circuit, the series connection is between ac circuit's live wire and zero line for prevent thunder and lightning invasion power supply circuit, power supply circuit, the input is connected the both endsof lightning protection circuit for be direct current 12V voltage with the alternating current 220V voltage transformation, be used for the power supply for current signal processing circuit, the mutual -inductor circuit, alternating current 220V voltage is connected to the input for convert three -phase voltage signal into required current signal, current signal processing circuit, the input isconnected transformer coil, be used for with three circuital current signal conversion are three routes DC voltage signal. The utility model discloses an anti -thunder -type exchanges three -phase voltage sensor can keep apart |
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