http___www.koncar-inem.hr_rekonstrukcija-pomocnog-sustava-napajanja-u-ts-konjsko__2.xml
1.1 2.1 2.2 2.3 3.1 3.2 3.3 4.1 5.1 5.2 5.3 5.4 6.1
Reconstruction of auxiliary power supply system in SS Konjsko KONČAR – Electronics and Informatics Inc. has contracted with the company Croatian Transmission System Operator Ltd. Split the reconstruction of the auxiliary DC power supply system 220 V at substation 400/220/110/10 kV Konjsko. The contract encompasses the production of equipment, factory testing, and installation in the object, cable laying, on-site testing, commissioning and delivery of the final design documentation. SS Konjsko was built in 1983 and represents the largest power facility of transmission network in Dalmatia that enables the electricity transmission from Hydro power plants Zakučac, Orlovac, Ðale and reversible hydro power plant Velebit to SS Mostar and Bilice and Switchyard Brinje. Over the last 35 years, the substation has undergone a number of changes of primary and secondary equipment that have greatly influenced the DC voltage supply system. Additionally, the existing systems are outdated today, therefore, the only possible solution were comprehensive redesign and reconstruction. As the substation is extremely important for the Croatian transmission system, all installed auxiliary DC power supply systems must have the highest level of reliability because they provide supply for all vital equipment. The needed high level of reliability and availability of power supply is achieved through an appropriate power supply concept. A double power supply system with modular thyristor rectifiers that operate in redundant parallel connection according to the principle n + 1, is foreseen. Each system has its own battery and main distribution board. Sub distributions are deployed in relay houses and each will be powered double-sidedly, independently from both DC sources. The final factory system testing was carried out in the presence of purchaser’s representatives on end of February 2018, and the equipment delivery and works on the facility are planned for the April.
1.1 2.1 2.2 2.3 3.1 3.2 3.3 4.1 5.1 5.2 5.3 5.4 6.1
Rekonstrukcija pomoćnog sustava napajanja u TS Konjsko KONČAR – Elektronika i informatika d.o.o. (INEM) ugovorilo je s Hrvatskim operatorom prijenosnog sustava (HOPS) Split rekonstrukciju pomoćnog sustava istosmjernog napajanja 220 V u Transformatorskoj stanici (TS) 400/220/110/10 kV Konjsko. Ugovor obuhvaća proizvodnju opreme, tvorničko ispitivanje, montažu na objektu, polaganje kabela, ispitivanje na objektu, puštanje u rad te izradu projekta izvedenog stanja. TS Konjsko izgrađena je 1983. godine i najveće je elektroenergetsko postrojenje prijenosne mreže u Dalmaciji, koje omogućuje prijenos električne energije iz hidroelektrana HE Zakučac, HE Orlovac, HE Ðale i RHE Velebit prema TS Mostar i Bilice te Rasklopnog postrojenja (RP) Brinje. U proteklih 35 godina trafostanica je doživjela je brojne promjene primarne i sekundarne opreme koje su se u velikoj mjeri odrazile i na sustav napajanja istosmjernim naponom. Osim toga, postojeći sustavi danas su zastarjele izvedbe pa su cjelovit reprojekt i rekonstrukcija bili jedino moguće rješenje. Zbog važnosti trafostanice za elektroenergetski sustav Hrvatske svi ugrađeni sustavi pomoćnog istosmjernog napajanja moraju imati najveću razinu pouzdanosti jer napajaju svu vitalnu opremu. Potrebna visoka razina pouzdanosti i raspoloživosti napajanja postignuta je izborom primjerenog koncepta napajanja. Predviđen je dvostruki sustav napajanja s modularnim tiristorskim ispravljačima, koji rade u redundantnom paralelnom spoju prema principu n + 1. Svaki sustav ima pripadnu akumulatorsku bateriju i glavni razvod. Podrazvodi su razmješteni po relejnim kućicama i svaki će biti napojen dvostrano, neovisno iz oba istosmjerna izvora. Završna tvornička ispitivanja sustava provedena su u prisutnosti predstavnika HOPS-a krajem veljače, a isporuka opreme i radovi na objektu planirani su tijekom travnja.