Reconstruction of the DC power supply system in SS 110/35 kV Blato
Last month, KONČAR – Electronics and Informatics has successfully completed the final factory acceptance test of the DC power supply system for HOPS – Split (Croatian TSO, subsidiary Split), SS 110/35 kV Blato.
The contract includes reconstruction of the main 220 V power supply system and two 48 V systems designated to supply telecommunication devices, local and remote signalization.
Reconstruction was designed in a way that three separate systems have to be replaced by only ones having three different voltage outputs. It means that for 48 V is not foreseen any additional rectifiers or batteries. The reliable power source will be only 220 V bus bars, while 48 V voltages will be obtain using redundant DC/DC converters.
The 220 V power supply system is the standard type for HV transmission transformer stations: KONIS-B 220 V, 40 A. And it will supply electric drives of the HV and MV breakers, control, protection, signalization and the emergency lighting.
Equipment manufacturing, factory acceptance test, installation on the site, cable laying, testing on the site, selectivity testing between circuit breakers, commissioning and issuing of as built documentation are included in the scope of contract.
Delivery of equipment and site works are scheduled to be performed in April.
Excitation systems FAT, HPP Vrhovo, Slovenia, 3×14,3MVA
After almost thirty years of successful operation, our old analogue excitation systems at the HPP Vrhovo in Slovenia is ready for replacement with digital one. The replacement is planned as a part of the renewal of other secondary electrical equipment of the plant during this and next year.
At the end of February, a successful FAT was made in the presence of representatives of end customer SEL, Ltd., supervision EIMV Ltd., leading partner Kolektor Igin Ltd. and contractor C&G Ltd. Ljubljana. All tests have shown that systems are ready for delivery and installation on the facility.
We are glad that all three excitation systems are delivered to HPP Vrhovo and just waiting for installation..
Battery chargers for tramways in Egypt
The company KONČAR – Electronics and Informatics has recently delivered battery chargers for tramways to Egypt. Battery chargers were purchased by company FAGR Co. on behalf of the end user Alexandria Passenger Transportation Authority (APTA) from City of Alexandria.
Battery charges will be used for charging batteries and supplying the vehicles DC loads. Its will be connected to 600/750 VDC tramway overhead line, providing output voltage of 24 VDC with power of 4500 W, and will be installed on existing tramways as part of an ongoing vehicle renewal and modernization.
Existing tramways were originally produced by Hungarian company Ganz-Mavag in 1985 and 1986.
Since it has been the very first delivery to Egypt this project opens the possibility of further cooperation with FAGR Co. and APTA in the field of battery chargers but also other inverters for tramways.
