LS 10

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SPECIFICATION FOR 11 KV DISTRIBUTION TRANSFORMERS ITEM CONTENTS PAGE

1.0 General
2.0 Standards and Approval
3.0 Technical Particulars and Guarantees
4.0 Transformers
4.1 Type of Transformers
5.0 Electrical Requirements And Performance
5.1 Voltage Ratios
5.2 Winding Connections and Vector Group
5.3 Impulse withstand Voltage
5.4 Impedance Voltage
5.5 Flux Density
5.6 Losses
5.7 Tapping Range And Method
5.8 Limits Of Temperature Rise
5.9 Class Of Winding Insulation
5.10 Noise And Vibration
6.0 Design And Construction
6.1 Core Materials
6.2 Core Construction 5
6.3 Winding Conductor Material
6.4 Winding Clamping And Bracing
6.5 Winding Insulation
6.6 Oil Ducts
6.7 Winding tapping

6.8 Drying Process

6.9 Transformer Tanks And Covers
6.10 Cooling System
6.11 Cable Boxes
6.12 Gaskets
6.13 Valves
6.14 Fittings
6.15 Terminal Marking And Rating Plates
6.16 Cleaning And Painting
6.17 Oil
7.0 Type Tests And Routine Tests
8.0 Packing
9.0 Earthing
10.0 Padlocks
11.0 Inspection,Testing And Commissioning
11.1 Inspection And Acceptance Tests
11.2 Site Testing
11.3 Commissioning
12.0 Rejection Of Plants
13.0 Other Items To Be Submitted With The Tender
13.1 Manufacturer’s Catalogues And Drawings
13.2 Recommended Spares
14.0 Working Drawing, Installation, Operation And Maintenance Instructions
14.1 Working Drawings
14.2 Installation, Operation And Maintenance Instructions

15.0 Transformer Room
16.0 Service And Maintenance
17.0 As Installed Drawings, Manuals And Tools
17.1 As Installed Drawings
17.2 Manuals
17.3 Tools
18.0 Schedule Of Particulars & Guarantees
19.0 Schedule Of Spares


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