SWITCHGEAR OWNED BY HŽ INFRASTRUKTURA
| Autor: | Jakupanec, Robert, Meštrović, Krešimir |
|---|---|
| Jazyk: | chorvatština |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Polytechnic and design Volume 11 Issue 1 |
| ISSN: | 2459-6302 1849-1995 |
| Popis: | Raspon napona koji HŽ Infrastruktura koristi je od 12 V DC do 110 kV 50 Hz AC, stoga se koristi širok spektar sklopne opreme. Unutar pogleda elektroenergetskog sustava najznačajnija je sklopna oprema koja se koristi za napajanje kontaktne mreže (KM). Koriste se visokonaponski i srednjenaponski prekidači i rastavljači unutar elektrovučnih podstanica koje transformiraju napon AC 110 kV 50 Hz na napon AC 25 kV 50 Hz koji koriste električne lokomotive i vlakovi. Unutar područja koje napaja jedna elektrovučna podstanica (EVP) nalazi se i niz postrojenja za sekcioniranje koja sadrže sklopnu opremu kako bi se kontaktna mreža mogla rastaviti na više sekcija. Elektrovučne podstanice i postrojenja za sekcioniranje (PS) sadrže niz relejnih zaštita koje služe za zaštitu opreme u slučaju kvara. Željeznički industrijski kompleks dugi je niz godina zanemarivan te je dio sklopne opreme u funkciji još od 1970-ih, no novim projektima Hrvatska željeznica mogla bi biti dovedena do europskih standarda. The voltage range used by Croatian Railway infrastrukture is from 12 V DC to 110 kV 50 Hz AC, therefore a wide range of switching equipment is required. Within the view of the power system, the most important is the switching equipment used to power the contact network (CN). High-voltage and medium-voltage switches and disconnectors are used inside electric traction substations (ETS) that transform the voltage AC 110 kV 50 Hz to the voltage AC 25 kV 50 Hz used by electric locomotives and trains. Within the range supplied by one traction substation there are also a number of sectioning plants (SP) containing switching equipment so that the catenary network can be separated into several sections. Inside electric traction substations and sectioning plants there is a series of relay protections that serve to protect the equipment in case of failure. The railway industrial complex has been neglected for many years and parts of the switchgear have been operating since the 1970s, but with the new projects Croatian Railway could be brought up to European standards. |
| Databáze: | OpenAIRE |
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