Tenders Are Invited For Delivery Of A Vehicle Transformer Station Intended For Use In Underground Workings.

1. The Subject Of The Order Is The Purchase, Delivery And Commissioning At The Destination Of 1 Piece Of A Brand New Vehicle Transformer Station Intended For Use In Underground Workings Of The Wieliczka Salt Mine, Hereinafter Referred To As The Vehicle Transformer Station2. The Vehicle Transformer Station Should Be Approved For Use In Mining Plants, By Way Of A Decision Issued By The President Of The State Mining Office, In Accordance With The Requirements Of Art. 113 Of The Act Of June 9, 2011, Geological And Mining Law, B) Be Intended For Use In Workings In Methane Fields Of Underground Mining Plants Classified As Workings Not At Risk Of Methane Explosion, With The A Degree Of Methane Explosion Risk, Where The Accumulation Of Methane In The Air Greater Than 0.5% Is Excluded (§ 271 Point 1 Of The Regulation Of The Minister Of Energy Of November 23 2016 On Detailed Requirements For The Operation Of Underground Mining Plants), C) Have A Declaration Regarding The Fulfillment Of Technical Requirements By The Product For Compliance With The Requirements Of The Regulation Of The Council Of Ministers Of April 30, 2004 On The Approval Of Products For Use In Underground Mining Plants, D) Have Technical And Operational Documentation (Dtr)3. The Purchased And Delivered Vehicle Transformer Station Should Have The Following Parameters: A) Casing With A Minimum Protection Level Of Ip 54, B) Unventilated, C) Power 400 Kva, D) Voltage 3,000/525 V, E) For Operation In An It Network, F) Equipped With A 12 Kv Isolation Switch, Current Transformers, Network Analyzer, G) Transformer Part Adapted To Be Transported In A Vertical Position, H) Adapted For Powering Receivers From Frequency Converters,I) With Three 525V Contactor Outlets, 400A Fuse Switch, Two 250A Disconnectors, Ammeter, Current Converter,J) With One 230V Outlet,K) Main Contactor (Vacuum)L) Local/Remote Control) Equipped With The Necessary Disconnection And Protection Devices, Including Integrated Digital Protections,N) Equipped With Cable Entries On The Gn Side With The Possibility Of Powering Another Station, P) A Spare Vacuum Contactor Suitable For The Supplied Station Must Be Delivered With The Delivery, P) The Protection Of The Vehicle Transformer Station Should Be Configured And Set In Accordance With The Guidelines For Use During The Delivery.