Operating current cabinet (hereinafter SHOT1M) on the basis of high-frequency voltage converter applied as charging and rectifying unit, is provided for AC conversion into regulated DC for charging of accumulator batteries and power supply of consumers with DC voltage both at buffer connection with accumulator battery and directly.
Charging and rectifying unit is implemented on the basis of double conversion with DC link: alternating voltage rectification, direct voltage conversion. Device is based on pulse direct voltage converter with modulation frequency 18 kHz and higher, with transformer galvanic isolation.
A number of protections is provided for the unit disconnection upon appearance of emergency situations both in load and in converter:
Microprocessor control system provides:
All control system tasks are performed by means of software and hardware.
Output voltage setting can be adjusted in the range of 0,5 to 1,35 of rated output voltage.
Load current setting can be adjusted in the range of 0,05 to 1,1 of rated output current.
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