Power supply generic device for relay electric interlocking system UEP-U

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Scope and field of application

This device is used for power supply of relay electric interlocking, HAI and automatic blocking systems, as well as power supply of communication, illumination and air conditioning devices, LCSS and other loads.

Main features

connection of at least three external three phase power sources (2 feeders and a redundant standalone power plant);
automatically switching from one external power source to another whenever the power disappears or no longer meets the voltage requirements;
galvanic isolation of signalling equipment loads from external power supply devices;
guaranteed load power supply;
continuity of power supply loads connected to the UPS for a specified duration of time from batteries, when switching to a different external power supply or when disconnecting them;
automatic and manual switching of power supply devices for electric interlocking system equipment, bypassing UPS during maintenance;
power supply to signalling systems: 24 V power supply to racks, relay cabinets, (coded) track circuits, light signals and route indicators, AC and DC power supply systems, off-tower circuits, remote-control machines and other signalling loads;
indication and transmission of status information to TDMS and remote-control machines.

Main technical features for UEP-U-5R, UEP-U-15R, UEP-U-40R (100R)

Number of external power sources	3
Input current type	harmonic, three-phase
Rated AC input voltage	380/220 V
Rated input current	80 A for UEP-U-5R; 100 A for UEP-U-15R; 160 A for UEP-U-40R (100R)
Capacity of uninterruptible power supply for AC loads	depending on the UPS capacity, 10 - 15 kV•A for UEP-U-5R; depending on the UPS capacity, 15 - 20 kV•A for UEP-U-15R; depending on the UPS capacity, 20 - 60 kV•A for UEP-U-40R (100R)
Capacity of ininterruptible power supply for DC loads	600 W for UEP-U-5R; 900 W for UEP-U-15R; NLT 1,200 W for UEP-U-40R (100R)
Autonomous mode duration (from batteries)	based on project requirements
Composition of products used (panels, cabinets)	PVRM5 panel, IT transformer, ShAKB cabinet, UAO panel, PP25/75V cabinet for UEP-U-5R; UVZF panel, PVRM panel, IT transformer, ShAKB cabinet, UAO panel, PP25/75M cabinet for UEP-U-15R4; UVZF panel, PVM panel, PRM panels, IT transformer, ShAKB cabinet, UAO panel, PP25/75M cabinet for UEP-U-40R (100R)