Section 48 19 23_04 26 Page 16.pdf
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- Old Hickory Power Plant GSU Transformer Supply
- Solicitation number
- W912P519R0004-0002
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This document provides technical specifications for a transformer to be supplied for the Old Hickory Power Plant. The transformer must be rated for 161kV and 13.2kV, with high voltage windings in a wye configuration and low voltage windings in a delta configuration. Impedance and tap requirements are specified. Maximum losses, sound level, and weight are provided. Structural design criteria and seismic calculations must be submitted. The related federal contract opportunity is a solicitation from the US Army Corps of Engineers seeking a transformer meeting the technical specifications for the Old Hickory Power Plant. Through amendment 0002, questions and answers are posted, as well as presentation materials from a pre-proposal site visit. The response due date is extended to May 22, 2020.
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Other files
| File | Type | Posted |
|---|---|---|
| Drawing G-003.pdf | ||
| Site Visit Attendees.pdf | ||
| OLD HICKORY GSU PREPROPOSAL PRESENTATION.pdf | ||
| W912P519R0004-0002.pdf |
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Text version
GSU Transformer Supply Old Hickory Lock W912P519R0004 Old Hickory Tennessee
(1) High-voltage windings: 161 x 69
(2) Low-voltage windings: 13.2
e. Winding connections:
(1) High-voltage windings: Wye
(2) Low-voltage windings: Delta
f. Impedance, at ONAN rated current, subject to IEEE tolerances, percent:
(1) 69 kV: 7.5
(2) 161 kV: minimum 7.5, maximum 12
g. Angular displacement, low-voltage lags high-voltage by, degrees:
h. Basic impulse insulation levels (BIL), kV:
(1) Line ends of the high-voltage windings, not less than: 650
(2) Neutral ends of the high-voltage windings, not less than:
(3) Low-voltage windings, not less than: 110
i. Taps in low voltage windings: None
j. Taps (full capacity) in high voltage winding
(1) Tap A, nominal voltage: 69 kV
(2) Tap B, nominal voltage: 161 kV
(3) Tap 1, percent of high-voltage tap A selection: 105.0
(4) Tap 2, percent of high-voltage tap A selection: 102.5
(5) Tap 3, percent of high-voltage tap A selection: 100.0
(6) Tap 4, percent of high-voltage tap A selection: 97.5
(7) Tap 5, percent of high-voltage tap A selection: 95.0
k. Maximum no-load losses at 161 kV and rated frequency, kW: 90
l. Maximum load losses at maximum ONAF rated kVA, 161 kV, and 1.0 power factor, kW: 180
m. Maximum average sound level at 161 kV and rated frequency, with all cooling groups in operation, dB: 68
n. Maximum transformer total weight, completely assembled and oil filled with all accessories installed, pounds: N/A
2.1.6 Unusual Service Conditions
The transformers will not be subject to any unusual service conditions, as defined by IEEE C57.12.00 , paragraph 4.3.
2.2 STRUCTURAL DESIGN CRITERIA AND SEISMIC CALCULATIONS
Structural design criteria and seismic calculations shall be provided for the transformers, to include the main tank and all major components such as bushings, cooling equipmentand cabinets.
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