FIELD: electrical equipment.
SUBSTANCE: field of application: electrical equipment. Self-discharging standby power supply unit comprises electric power accumulation component to provide power to the process control device. Electric energy accumulation component is connected to the energy discharge component and a controller which forces the discharge component to discharge energy from the electric energy accumulation component with subsequent termination of the process control device operation.
EFFECT: technical result is providing discharge of remaining energy accumulation device.
20 cl, 9 dwg
