10 SIGNALLING & TELECOMMUNICATIONSSUPPLEMENT Péter Tóth
Signalling Expert, Hungarian State Railways, Telecom, Electrification and Signalling Technological Centre
A history of electronic interlocking in Hungary
In March 1997, SIMIS IS interlocking from Siemens was taken into operation at station Tata on the Budapest–Hegyeshalom line, i.e. on the Hungarian section of the Budapest–Vienna railway connection. Although MÁV (Hungarian State Railways), GySEV (Győr – Sopron – Ebenfurth Railway Company) and BKV (Budapest Transport Company) put into operation only 41 electronic station interlockings (that means 2.7 (!) stations per year) during the last 15 years, it seems worthy to review this as the ‘history’ of this period. In this article we do not only deal with ERTMS/ETCS installations, but a short summary can be read about electronic level crossing equipment as well. This paper gives a short summary about these interesting years.
Up to the first electronic interlocking… The first electric interlocking of Hungary – also made by Siemens – was taken into operation in 1901 at station Rákos of the Hungarian Royal Railways. Wider spread electric interlocking began after the First World War: Telefongyár (in English: Telecommunication Factory) started to produce electro-dynamic interlocking, based on licence of VES (Vereinigte Eisenbahn Signalwerke). The first centralised VES inter - locking was installed at station Balatonszemes of Danube – Sava – Adria Railway Company (in former times: South Railway Company). After Balatonszemes, some larger stations followed: Székesfehérvár, Miskolc, Hatvan, Ferencváros, Komárom, Kőbánya-felső. Reliability of these systems have been proven: on stations
European Railway Review Volume 18, Issue 1, 2012
Székesfehérvár and Kőbánya-felső this old equipment is in operation nowadays, in Komárom this system has been replaced by an electronic one five years before (and, unfortunately, it is a good example for bad financial conditions of Hungarian railways…). After the Second World War, MÁV decided
that the reconstruction of main lines should be carried out only with relay interlocking. Telefongyár got the licence of relay interlocking of Integra Switzerland and the first free-wired relay interlocking was installed at station Szántód-Kőröshegy (at lake Balaton, neigh - bouring station of Balatonszemes) in 1951. Nowadays, four such type of interlocking on the MÁV network can be found. Since MÁV was satisfied with Integra
systems, the licence of the first relay-unit based equipment, named as Domino55, was purchased from Integra as well. First and second Domino55 stations were taken into operation in 1962, 50 years ago on Vámosgyörk and Angyalföld; they are in operation today (Vámosgyörk after a complete renewal). Since 1962, around 250 Domino55 stations have been taken into operation. Therefore this type is the most ‘popular’ interlocking system in Hungary. This equipment can also be found on secondary lines nowadays. The licence of the first large-station
interlocking of MÁV was also bought from Integra; its name is Domino70. The first Domino70 was taken into operation in 1973 at station Dunakeszi. Although only 16 Domino70 systems are in operation, considering the number of remote-controlled points on these stations, it is a significant interlocking type of Hungary. Of course, a lot of Hungarian engineers developed the adaptation principles and circuits of Domino 55/70 systems. The relay-type (so-called TM-relay) used in
Domino70, became the base of KA-69 system, the only station interlocking equipment completely developed by Hungarian engineers and experts.
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