Tenders Are Invited For High Voltage Installation Work – Outdoor Switchgear Substation Müllheim Provisional

High Voltage Installation Work – Outdoor Switchgear Substation Müllheim Provisional. On The 110 Kv Side, The Temporary Solution Consists Of Two 110 Kv Transformer Fields With Two 110 / 20 Kv, 50/63 Mva Transformers, Each Of Which Is Connected On The 110 Kv Side To Two Different 110 Kv Overhead Line Systems Of The Upstream 110 Kv Network. This Can Be Seen In The Attached Overview Diagram. The Conductor Cables Are Tensioned Via Masts That Are Erected On Neighboring Properties. The Overhead Line Cables Are Transferred To The Masts Into Cable Lines, Which Are Then Routed Underground To The Site Of The Temporary Structure. The Cables Run Underground Across The Property To The Designated Transformer Fields. The Transformer Fields Themselves Are Constructed As Outdoor Switchgear. The Cable Routes Cross Underground Gas And Water Pipes That Are Located Within The Property. These Intersections Are Orthogonal And In Compliance With All Relevant Safety And Protective Distances. On The 20 Kv Side There Are Two Switchgear Containers, Each Of Which Houses An Ms Busbar Section. Each Transformer Is Connected To A Separate Container. Further Supply Takes Place From Here. The Medium-Voltage Network Is Operated In Extinguished Operation (Respe); Grounding Is Carried Out Via A Ground Fault Compensation Coil. On The 20 Kv Side, An Associated 20 Kv E-Coil Is Connected To Each Star Point Of The Transformers. To Control The Substation, There Will Be A Technology Container Equipped With Protection, Counting, Regulation, Telecontrol And Eb Distribution. There Is No Need For Expansion Beyond This Temporary Version. After The Permanent Substation Is Put Into Operation, The Temporary System Will Be Completely Dismantled. This Tender Primarily Includes The Planning, Procurement And Construction Of Two Ready-To-Commission 110 Kv Outdoor Switchgear Including Overhead Line Connection And Earthworks. Rated Data Of The 110 Kv Switchgear Rated Voltage 123 Kv Rated Short-Time Withstand Alternating Voltage 230 Kv Rated Lightning Impulse Withstand Voltage 550 Kv Rated Frequency 50 Hz Busbar Configuration No Busbar --------- Cross Coupling Field --------- Longitudinal Separation(S) --------- Input And Outgoing Field 1250 A Rated Short-Circuit Current 40 Ka / 1 S Motor, Control And Signaling Voltage 220 V Dc Auxiliary Voltage Ac 400 / 230 V Ac All Values Are To Be Taken As Minimum Values. Project Implementation Preliminary Planning The First Project Phase Includes The Detailed Conception Of The System On The Property. This Involves A Precise Location Of All Existing Underground Lines And Infrastructure Systems, In Particular Gas, Water, Overhead Lines, Power And Telecommunications Cables, According To Existing Plans And On-Site Surveys. At The Time Of This Announcement, Tests For Explosive Ordnance, Environmental Reports, Soil Reports, Water And Nature Conservation Are In Progress. Design, Approval And Detail