Outdoor intelligent three-phase inconsistent protective device
The utility model discloses an outdoor intelligent three-phase inconsistent protective device which is strong in interference immunity, high in reliability and accurate in timing and can be installed on a breaker. The outdoor intelligent three-phase inconsistent protective device comprises a casing,...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses an outdoor intelligent three-phase inconsistent protective device which is strong in interference immunity, high in reliability and accurate in timing and can be installed on a breaker. The outdoor intelligent three-phase inconsistent protective device comprises a casing, an input circuit, an output circuit and a master control circuit. The master control circuit comprises a microprocessor and a switch circuit. The input circuit is connected to the input end of the microprocessor in a manner of photoelectric coupling. The output end of the microprocessor is connected to the output circuit through the switch circuit. The outdoor intelligent three-phase inconsistent protective device replaces a protection device which is connected to a target position through a relay coil style, so that the interference immunity and reliability of the outdoor intelligent three-phase inconsistent protective device are raised. The delay time is controlled through the microprocessor by utilizing a high- |
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