Abstract: A modular coolant-distribution unit includes one or more coolant-distribution modules configured to urge a secondary coolant to circulate through a secondary fluid network. Each coolant-distribution module can include a heat exchanger that thermally couples the secondary coolant with a primary coolant circulating through a primary fluid network without allowing the coolants to mix. Each coolant-distribution module can be removably coupled with respective manifolds for supplying and collecting secondary coolant and primary coolant. A reservoir can also be coupled with the secondary fluid network side of each coolant-distribution module. The coolant-distribution modules can be operated in conjunction with each other to operation as a single unit, allowing the modular-coolant-distribution unit to operate as a single unit while also being scalable according to a desired cooling capacity.

Abstract: A ground fault detector interrupter (GFDI) is described. The GFDI configured for use with a DC power supply and comprises the following elements. A ground current path is provided for coupling a ground terminal of the DC power supply and a system ground. A grounding switch is placed in the ground current path. A current detector is configured to detect a ground current in the ground current path. A controller is configured to compare the ground current with a predefined current set point and output a fault indication signal if the ground current exceeds the predefined current set point. The fault indication signal results in the grounding switch being open.