Voltage sensor for high-current junction

A system comprising:

• a high-current junction at which power connectors of two components are electrically connected, where a high current passes between the two components at the high-current junction;
• a voltage sensor to detect a voltage at the high-current junction;
• and,
• a controller to perform a predetermined action in response to the voltage sensor detecting the voltage at the high-current junction being greater than a predetermined threshold voltage,
• wherein the high-current junction is a selected high-current junction, the voltage sensor is a selected voltage sensor, and the system further comprises:
• a plurality of high-current junctions including the selected high-current junction, each high-current junction electrically connecting power connectors of two components such that a high current passes between the two components at the high-current junction;
• and,
• a plurality of voltage sensors including the selected voltage sensor, each voltage sensor to detect a voltage at a corresponding high-current junction of the plurality of high-current junctions,
• wherein the controller comprises a memory having a plurality of memory locations corresponding to the plurality of voltage sensors, each voltage sensor to store the voltages detected at the corresponding high-current junction within a corresponding memory location of the plurality of memory locations.

A method comprising:

• providing a first voltage sensor to detect a first voltage at a first high-current junction of a data center rack, the first high-current junction removably connecting an alternating current (AC) input of the data center rack to a conductor of the data center rack, where a high current passes from the AC input to the conductor, and where the AC input is to receive AC power from AC mains;
• providing a second voltage sensor to detect a second voltage at a second high-current junction of the data center rack, the second high-current junction removably connecting the conductor to a power supply of the data center rack, where a high current passes from the conductor to the power supply, and where the power supply is to receive power from the AC input and to generate direct current (DC) power to provide to one or more data center rack components insertable within the data center rack;
• and,
• programming a controller of the data center rack to perform a predetermined action in response to one or more of the first voltage sensor detecting the first voltage being greater than a predetermined threshold voltage and the second voltage sensor detecting the second voltage being greater than the predetermined threshold voltage.