Abstract: The faulty transformer partial discharge, vibration, combustible gases, and sound frequency monitor and alarm is an electric circuit. The faulty transformer partial discharge, vibration, combustible gases, and sound frequency monitor and alarm is a diagnostic tool. The faulty transformer partial discharge, vibration, combustible gases, and sound frequency monitor and alarm comprises a control circuit, a housing structure, and a transformer structure. The housing structure contains the control circuit. The housing structure attaches the control circuit to the transformer structure. The control circuit captures audible sounds generated by the transformer structure. The control circuit analyzes the captured audible sounds.

Abstract: A power assembly apparatus includes a capacitor module, a power module and at least one heat sink. The capacitor includes interconnected direct current (DC) capacitor banks and a capacitor bus. The capacitor bus has a connection part. The power module has an input bus, an output bus, and three single-phase switching tube groups. Each single-phase switching tube group includes a plurality of switching modules. Each switching module is coupled to input tubes and output tubes. The input bus is connected to the connection part. The output bus is configured to output electrical energy. The heat sink has a mounting surface for mounting each of the single-phase switching tube groups for efficiently move away heat generated by the single-phase switching tube groups.

Abstract: A liquid cooling system for cooling heating units each having an identical cooling flow channel includes a cooling liquid circulating supply device which is provided with a liquid supply port and a liquid return port and a pipeline system which includes a liquid supply pipe, a liquid return pipe, and a flow distribution subsystem. One end of the liquid supply pipe communicates with the liquid supply port, and the other end is connected to the flow distribution subsystem at a total flow distribution end. One end of the liquid return pipe communicates with the liquid return port, and the other end is connected to the flow distribution subsystem at a total liquid collection end. The flow distribution subsystem connects the total flow distribution end and the liquid inlet of each heating unit and connects the total liquid collection end and the liquid outlet of each heating unit.