110-kV-Schaltanlage

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Within the framework of this qualification system, the contracting authority intends to procure the following services: 110 kV switchgear system. In the high-voltage range, wesernetz Bremen GmbH operates several 110 kV switchgear systems for feeding in and distributing electrical energy in the regional supply grid. The systems are implemented both as outdoor switchgear installations (AIS) and as gas-insulated switchgear systems (GIS). For the gas-insulated systems, SF6 (sulfur hexafluoride) is currently still used as the insulating medium. Starting at the end of 2027, only systems with a GWP < 1000 are to be used. 20 kV switchgear system. wesernetz Bremerhaven GmbH operates, within the city area of Bremerhaven, several 20 kV substations and switch houses. In these systems, both GIS and AIS are used. The switchgear systems are designed in double busbar trunking technology. For both variants, the scope includes fully insulated busbars, AC and DC systems, auxiliary power supply systems (own needs), cable routing system(s), control, remote control and monitoring, and control and instrumentation technology. 10 kV switchgear system. wesernetz Bremen GmbH operates, within the city area…

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