Electric points-heating and trough-bottom heating system (VVFR)
Main features of the system:
Full-range system from energy supplying column transformer station up to heating inserts,
its configuration is based on several years’ constructional experiences
Modular construction, thus ensuring easy adaptation to any station configuration
It is in compliance with the relevant requirements of MÁV (Hungarian State Railways)
Own development, manufacture and own domestic service background
Components of the system: Column transformer station:
With transformers of 25kV/231V and power ranges can be 16, 25, 50, 100, 160, 250 kVA
Energy distribution
Power measurement with distant-reading is integrated in the system
Zone control cabinet:
Heating control of turnouts belonging to the zone, collection and transmission of status information
Modular system construction
Universal heat controlling PLC, that accepcts the measured values of different sensors
and automatically gives heating command based on determined algorithm
Network voltage monitoring, reclosing (switch-back) delay
Checking of heating operation of turnouts on both sides by current sensors
Connection to the station data transfer system
Status information transfer to the operating and check-back unit
Operating and check-back unit:
The unit can be scheme board or or PC-based unit (SCADA) in accordance with the requirements of customer
The status information of equipment of the zone is disaplayed graphically
Manual intervention of operation is also possible
Data exchange is ensured to the remote supervision system
Remote Supervision System:
PC based (SCADA) system that supervises the points heating systems of several stations or open-line sections
References: On territory of MÁV Zrt. (Hungarian State Railways):
