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Three Phase Outdoor Power Transformers

Active
Z4523State & Local

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

AI Contract Overview

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Nashville Electric Service is soliciting bids for a three phase outdoor power transformer with an ONAN rating of 24 MVA at a maximum 55 degrees C rise, featuring a voltage configuration of 69 KV delta to a dual voltage secondary of 23.9/13.8 x 13.8/7.967 KV grounded wye. The equipment must adhere to NES specification ET-335-11, specifically requiring ABB condenser capacitive graded bushings and a Weschler instruments Electronic Temperature Monitor. The contract is awarded on an FOB job site basis, meaning the supplier is responsible for all costs associated with shipment, unloading, placement on the foundation, assembly, oil filling, programming, and field testing. Eligible manufacturers include a wide range of providers such as Hitachi, Siemens, GE, and ABB. Responses for solicitation Z4523 must be submitted by September 10, 2026.

General Info

Nashville Electric Service seeks bids for a 24 MVA transformer by September 10, 2026.

Agency

Tennessee → Nashville Electric ServiceView Agency

NAICS

335311 - Power, Distribution, and Specialty Transformer ManufacturingView NAICS

Place of Performance

Nashville, TN, USA

Set-Aside

NONE

Documents

(1)

RFB Z4523 - Three Phase Outdoor Power Transformer

PDF•5 pages•rfb

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Timeline

PhaseSolicitation
Posted

Solicitation

Response Deadline

Submission deadline

Response Deadline

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Organization & Contact Information

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AgencyTennessee → Nashville Electric Service
Contacts1 person available
OfficeNashville, TN, USA
Organization / Agency
Tennessee → Nashville Electric Service
View Agency Profile
Office AddressNashville, TN, USA
Contacts
Bailey AllenProcurement Contact
contact@example.gov

Full Description

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KV THREE PHASE, OUTDOOR, POWER TRANSFORMER, ONAN RATING: 24 MVA @ MAXIMUM 55 DEGREES C RISE, i.e. 24/32/40//44.8 MVA, 55//65 DEGREES C RISE. VOLTAGE: 69 KV DELTA-- 23.9/13.8 x 13.8/7.967 KV GROUNDED WYE (DUAL VOLTAGE SECONDARY). IMPEDENCE: 7.2% AT 13.8 KV, BASED ON RATED VOLTAGE AND OA RATING. TRANSFORMER SHALL BE MANUFACTURED IN Close Date: Page: RFB: Z45239/4/2026 2 ACCORDANCE WITH NES SPECIFICATION ET-335-11 AND THE DRAWINGS LISTED IN THE COMMENT SECTION OF THE RFB. SPECIFICATION ET-335-11 PARAGRAPH 4.2.1 SHALL BE REPLACED WITH THE FOLLOWING: 4.2.1 Bushings shall be manufactured by ABB and shall be a condenser capacitive graded type constructed of Resin Impregnated Paper (RIP) for ratings greater than 3000 amps, and Resin Impregnated Synthetic (RIS) for ratings 3000 amps and below. SPECIFICATION ET-335-11 PARAGRAPH 4.5.1 SHALL BE REPLACED WITH THE FOLLOWING: 4.5.1 Equipment transformer with an Electronic Temperature Monitor (ETM) from Weschler instruments. Provide the latest version of Transformer Advantage CT/LTC monitor Part No. G8EF2550WCEJTXB, or as updated. Mount the monitor in the control cabinet. Provide contacts rated 125 VDC or 120 VAC to control two stages of cooling, one alarm circuit, and one trip circuit. TRANSFORMER SHALL BE SHIPPED FOB JOB SITE. THIS ITEM SHALL INCLUDE ALL COSTS FOR SHIPMENT TO THE SUBSTATION SITE, UNLOADING AND PLACING ONTO NES FOUNDATION, ASSEMBLING OF ALL ACCESSORIES, FILLING WITH OIL, PROGRAMMING ALL CONTROLS, FIELD TESTING, AND READY FOR EXTERNAL CONNECTIONS. Approved Manufacturers and/or Part Numbers: HITACHI. SGBSMIT. SIEMENS. WEGTRAN. WKSHAEL. PENNTRF. GEPROLE. HICO. HYUNDAI. ILJINEL. LSELECT. NIAGARAT. DLTA-STR. ABBPWR. Close Date: Page: RFB: Z45239/4/2026 3

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