Tenders Are Invited For Construction Work - Preparation Of A Construction And Executive Design As Well As Co ...

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Construction Work - Preparation Of A Construction And Executive Design As Well As Construction And Assembly Works According To This Project For The Task Replacement Of Hv Transformers At The Pasłęk Station. 1. The Subject Of The Order Is The Execution Of A Construction And Executive Design As Well As Construction And Assembly Works According To This Design For The Task Replacement Of Hv Transformers At The Pasłęk Station, Including The Replacement Of The Existing Two 110/15 Kv Tr1 And Tr2 Transformers With A Power Of 16 Mva With Two Transformers With A Power Of 31.5 Mva Each. 1.1. Scope Of The Order: A) Performance Of Necessary Earthworks Related To The Dismantling Of Existing Elements At The Station: The Structure Of The Cable Bridge And Mv Cables Between Tr1 And Tr2 And The Mv Switchgear, Structures (Underlays) Of The Existing Tr Stations And Control Cables For The Replaced Units; B) Carrying Out The Necessary Earthworks Related To The Installation Of New Elements At The Station - Excavations For The Needs Of Running Mv And Control Cabling At The Station And New Structures Of Power Transformer Stations, Cable Bridge And Tr Neutral Point Earthing Switches; C) Disassembly Of Mv Cables Running Between Tr1 And Tr2 Stations And The Mv Switchgear; D) Disassembly And Transfer Of The Existing Tr1 (16 Mva) And Tr2 (16 Mva) Power Transformers To The Investors Storage Reserve (The Scope Of Work Includes Disconnecting The Transformers On Both The Hv And Mv Sides And Secondary Circuits, Removing Them From The Stations, Loading And Transporting Them To The Gpz Kwidzyn Area Cellulose); E) Dismantling The Existing Power Transformer Stands Made In The Form Of Rails Based On Prefabricated Ppt Concrete Sleepers, Removing Curbs And Ballast At The Tr Stand; F) Construction Of New Structures For Mv Cable Bridges To Tr1 And Tr2; G) Construction Of New Power Transformer Stations, Consisting Of Construction Of Monolithic Block Foundations With Access Rails, Curbing Of The Station And Laying A New Layer Of Crushed Stone On Geotextile Within The New Curbs; H) Cleaning Of Pipe Penetrations In The Existing Building For The Introduction Of New Mv Cabling; I) Delivery And Installation Of Two New 110/15 Kv Transformers Tr1 And Tr2 With A Capacity Of 31.5 Mva, On Site Stands (Scope Of The Work Contractors Work: Purchase And Delivery Of New Transformers, Connecting The Transformer On Both The Hv And Mv Sides And Secondary Circuits, Rolling The Transformer To The New Stand); J) Construction Of Cable Bridges From New 110/15 Kv Transformers With A Power Of 31.5 Mva To The 15 Kv Switchgear - Each Bridge In The Form Of Cables Of Min. 2 X 3 X N2xs(Fl)2Y 1X300/50 Mm2 12/20 Kv; K) Installation Of A Set Of New 110 Kv Surge Arresters With Operation Counters And Point Limiters. Neutral On The Supporting Structures Placed On The New Tr1 And Tr2; L) Installation Of A New Structure With A New Earthing Switch Point Neutral For Transformer Tr1 And Tr2; M) Switching Of Existing 110 Kv Transformers – Changing The Primary Side Current Of The Transformer To 200 A; N) Connecting New Transformers To The Existing 110 Kv Switchgear And New Earthing Switches And Surge Arresters; O) Adaptation Of Bay No. 1 And 31 Of The 15 Kv Switchboard To Work With New 110/15 Kv Transformers With A Power Of 31

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