Unit 3 and 4 Generator Rewind, Hartwell Powerhouse, GA

Amendment 004 is issued on 29 APR 2020, see attachment W9127820R0018 AM04.

Amendment 003 is issued on 8 APR 2020, see attachment W9127820R0018 AM03.

Amendment 002 is issued on 4 MAR 2020, see attachment W9127820R0018 AM02.

Amendment 001 is issued on 26 FEB 2020, see attachment W9127820R0018 AM01.

THIS PROJECT IS ADVERTISED ON AN UNRESTRICTED BASIS UTILIZING FAR PART 15 SOURCE SELECTION PROCEDURES THE NORTH AMERICAN INDUSTRY CLASSIFICATION SYSTEM (NAICS) CODE FOR THIS PROJECT IS 237990.

The estimated cost range of this project is between $10,000,000 and $25,000,000

The Government intends to award one Firm Fixed Price 'C' type contract as a result of this solicitation. The work to be performed under this contract consists of perform all work required to rewind two hydroelectric generating units at Hartwell Powerhouse, Hartwell, GA. The contractor shall be responsible for field verifying existing drawings and creating as-built drawings. The contractor shall furnish all labor, material, and equipment to perform this work in strict accordance with the detailed requirements of the Scope of Work (SOW) specifications and associated drawings. The work described within these specifications shall include, but not necessarily be limited to the following:

Pre-disassembly mechanical and electrical testing, alignment checks, and disassembly of two hydroelectric generating units.

Perform an electromagnetic finite element analysis of the proposed winding and core design to eliminate air-gap flux stator vibrations at fundamental and harmonic frequencies.

Analyze the existing frames for suitability for continued service with the new cores, keybars, and core clamping systems.

Inspect and evaluate the stator frame sole plates, condition of the frame and sole plate interface and develop options to improve the fit and function as necessary, and verify torque of foundation anchors and hold-down bolts.

Design, manufacture, and perform voltage endurance testing on 4 prototype coils.

Manufacturer and perform thermal cycle testing on 5 prototype coils.

Manufacture, shop test, prepare and load for shipment, deliver f.o.b. destination, and unload two complete set of stator coils and all accessories.

Remove the old stator windings, stator cores and stator core clamping systems.

Furnish and install new circuit rings, surge rings, neutral current transformers, and surge arresters.

Furnish, install and test two new stator cores, stator windings and accessories.

Clean and inspect rotor, clean and test the rotor field poles winding, reinsulate the rotor field leads, and at the option of the government, refurbish the rotor poles.

Reassemble, perform start-up, commissioning, and testing of the generator including generator special field tests and model validation tests on the excitation and governor systems.