| 1 | ELECTRICAL WORKS: (OD) - 110kV/11kV 16MVA TRANSFORMER: Design, engineering, manufacture, stage testing, assembly, shop testing, loading & dispatch, delivery including freight, unloading and insurance (transit + 1 month storage), supervision of erection, site testing and commissioning of Outdoor type 110kV/11kV, 12.5MVA-ONAN/16MVA-ONAF, 3-Phase 50 Hz, Dyn11 Power Transformer with On-Load Tap Changer (OLTC) and Communication Interface for Substation Automation System (SAS); with all fittings, components, mountings, accessories and associated equipment, mandatory spares and spare oil; as listed below and as per the technical specifications complete:
Type of Winding: Rectangular copper conductor, paper insulated (HV), (LV)
Type of Core: CRGO H-B Silicon Steel Laminations
OIP Condenser Type Porcelain Bushings for HV, LV & LVN. The bushing terminals shall be suitable to connect IPS Al. tube on 110kV side and cables on 11kV side.
OLTC with taps -15% to +10% in steps of 1.5%, having manual/ motorized controls,
RTCC panel with digital AVR , OLTC oil conservator
Oil Conservator with Air cell, Self-dehydrating breather, Magnetic oil level gauge,
Cooling Fans and Cooler Controller
Turret mounted 11kV Bushing Neutral CTs 2-core 1000/ 1A, class PS, Bushing CTs for Winding /temperature Indicators HV and LV
Transformer mounted protective devices: OTI, WTI, Bucholz relay, PRD, Oil surge relay, MOLG
Communication interface for all devices and mountings detailed above for integration with SAS,
Necessary Provisions in the transformer to facilitate installation of Automatic Nitrogen Injection Fire Protection System (NIFPES) later. (The Supply, installation, Testing and commissioning of NIFPES is not included in the scope of this contract)
First fill of oil
Tools & Spares
Supervision of Erection, Site testing & Commissioning
The item shall be inclusive all standard components, mountings & accessories complete as per the requirements of latest revisions of IS: 2026/ IEC 60076. This BoQ is intended to provide general information and reference only and shall be read in conjunction with the Technical Specifications of this tender/ RFP to ascertain the full scope of supply. | 1 | LS |
