Protection, monitoring or indication apparatus for a direct current electrical generating apparatus or a plurality of strings

摘要

A protection apparatus is for a direct current electrical generating apparatus. The protection apparatus includes a first terminal; a second terminal; a third terminal; a fourth terminal; at least one current sensor structured to sense current flowing between the first and second terminals or between the third and fourth terminals; a voltage sensor structured to sense a voltage between the first terminal and the third terminal; at least one switch structured to interrupt the current flowing between the first and second terminals or between the third and fourth terminals; and a processor cooperating with the at least one current sensor, the voltage sensor and the at least one switch, and being structured to provide feed forward fault protection for the direct current electrical generating apparatus.

主权项

1. A protection apparatus for a direct current electrical generating apparatus, said protection apparatus comprising:
a first terminal; a second terminal; a third terminal; a fourth terminal; at least one current sensor structured to sense current flowing between the first and second terminals or between the third and fourth terminals; a voltage sensor structured to sense a voltage between said first terminal and said third terminal; at least one switch structured to interrupt said current flowing between the first and second terminals or between the third and fourth terminals; and a processor cooperating with said at least one current sensor, said voltage sensor and said at least one switch, and being structured to provide feed forward fault protection for said direct current electrical generating apparatus, wherein said protection apparatus is a protection module; wherein said at least one switch is part of an electronically controlled relay controlled by said processor internal to said protection module; wherein said processor includes at least one input and a number of indicators; and wherein said at least one input is structured to define one of a first off state to cause said processor to open said at least one switch and turn off said number of indicators, a second on state to cause said processor to close said at least one switch and turn on one of said number of indicators, and a third reset state to cause said processor to turn off said number of indicators.