Abstract: A direct current feeder protection system includes six conductors, four current sensors sensing four currents flowing in four of the conductors, four circuit interrupters interrupting currents flowing in the four conductors, and a processor cooperating with the current sensors to input four sensed currents, and to output a number of commands to the circuit interrupters. The processor includes a routine detecting a number of: a directional current fault of the sensed currents, a differential current fault of the sensed first and third currents or the sensed second and fourth currents, and a residual current fault of the sensed first and second currents or the sensed third and fourth currents, and to responsively output the commands. The first, fifth and third conductors are electrically connected in series with two of the circuit interrupters, and the second, sixth and fourth conductors are electrically connected in series with the other circuit interrupters.

Abstract: A direct current feeder protection system includes six conductors, four current sensors sensing four currents flowing in four of the conductors, four circuit interrupters interrupting currents flowing in the four conductors, and a processor cooperating with the current sensors to input four sensed currents, and to output a number of commands to the circuit interrupters. The processor includes a routine detecting a number of: a directional current fault of the sensed currents, a differential current fault of the sensed first and third currents or the sensed second and fourth currents, and a residual current fault of the sensed first and second currents or the sensed third and fourth currents, and to responsively output the commands. The first, fifth and third conductors are electrically connected in series with two of the circuit interrupters, and the second, sixth and fourth conductors are electrically connected in series with the other circuit interrupters.

Abstract: A system monitors electrical equipment and provides predictive diagnostics therefor. The system includes sensors located at or about the electrical equipment. The sensors sense information pertaining to operation of the electrical equipment. A first processor is located at or about the electrical equipment and receives the sensed information from the sensors as first information. A first transceiver cooperates with the first processor to transmit the first information as transmitted information. A second processor is located remote from the electrical equipment. A second transceiver cooperates with the first transceiver to receive the transmitted information as second information and communicate the same to the second processor. The second processor provides a notification pertaining to an immediate inspection and/or maintenance of the electrical equipment, and set points operatively associated with the sensed information.

Abstract: A system monitors electrical equipment and provides predictive diagnostics therefor. The system includes sensors located at or about the electrical equipment. The sensors sense information pertaining to operation of the electrical equipment. A first processor is located at or about the electrical equipment and receives the sensed information from the sensors as first information. A first transceiver cooperates with the first processor to transmit the first information as transmitted information. A second processor is located remote from the electrical equipment. A second transceiver cooperates with the first transceiver to receive the transmitted information as second information and communicate the same to the second processor. The second processor provides a notification pertaining to an immediate inspection and/or maintenance of the electrical equipment, and set points operatively associated with the sensed information.