COOLING DEVICE, COOLING DEVICE FOR COOLING SWITCH GEAR CABINET INCORPORATED COMPONENT, USE OF COOLING DEVICE, AND COOLING METHOD

摘要

The present invention relates to a cooling device, and more particularly to a cooling device that cools a switchgear cabinet built-in component, and relates to a first cooling fan that blows air from a switchgear cabinet through a first heat exchanger, and blows outside air through a second heat exchanger. A voltage source (1) having a step-up and / or step-down converter (2), and the step-up and / or step-down converter (2) is single-phased via a rectifier (3). Alternatively, it is connected to a multi-phase wide range input section (4) and charges the capacitor (5) to a DC link voltage, and the DC link voltage is higher or lower than the main voltage between the wide range input sections (4). The power supply unit (6) of at least one of the two cooling fans is connected in parallel to the capacitor (5). To. The invention further relates to the use of such a cooling device and the corresponding operating method of said cooling device. [Selection] Figure 1