COMBINED STANDBY POWER SUPPLY UNIT Russian patent published in 2020 - IPC H02J9/04 H02B7/06 

FIELD: electricity.

SUBSTANCE: invention relates to uninterruptable power supply equipment. Disclosed is a combined standby power supply unit, which is a block-container, which includes transformer compartment, engineering compartment, diesel-electric installation compartment, battery compartment. In the transformer compartment there is a step-down transformer connected to the along-line power transmission line. In the engineering compartment there is an automatic transfer switch connected to the step-down transformer, through which power is supplied to the input of the uninterruptible power supply, to the output of which the accumulator battery located in the battery compartment is connected, and an inverter, to the output of which a guaranteed power panel is connected, from which electric consumers of auxiliary needs of the block-container and electric motors of valves of main oil pipelines are supplied. In compartment of diesel-electric plant there is diesel-electric power plant connected through automatic reserve transfer device to input of uninterrupted power supply source. In engineering compartment there is also control system of combined standby power supply, which is connected to storage battery, device of automatic reserve input and diesel-electric power station.

EFFECT: invention improves reliability of power supply in conditions of location of equipment in places hard to access for operation and maintenance personnel, where time of restoration of power supply of main source can be more than a day.

1 cl, 1 dwg