HomeMy WebLinkAboutAgenda Report - October 21, 2015 C-06AGENDA ITEM CM
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COUNCIL COMMUNICATION
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AGENDA TITLE: Approve Specifications and Authorize Advertisement for Bids to Procure 35 MVA
60/12 kV Power Transformer
MEETING DATE: October 21, 2015
PREPARED BY: Electric Utility Director
RECOMMENDED ACTION: Approve specifications and authorize advertisement for bids to
procure a 35 MVA 60/12 kV power transformer.
BACKGROUND INFORMATION: The two 35 MVA transformers in Killelea Substation were placed
into service in 1969. The normal life expectancy of power
transformers operating under normal conditions per IEEE standard
C57.91-2011 is 20 years.
When Killelea Substation was refurbished in 2005, it was recommended by the City's engineering
consultant, Power Engineers, that both Killelea power transformers be replaced. However funding was
not available then to include the transformer replacement as part of the substation refurbishment project.
The Electric Utility's Ten Year Capital Improvement Plan and financial forecast includes funding
necessary to replace the Killelea Bank #1 power transformer with a new unit and have the old unit
refurbished and re -wound. The refurbished unit will ultimately be used to replace the Killelea Bank #2
power transformer. Staff recommends approval of the specifications, as summarized in the table below,
and requests council approval to advertise for bids.
General Transformer Specification Recommended
i Purchase Quanti
35 MVA 60 kV Delta to 12 kV Grounded Wye
Fully assembled, delivered and ready for 1
energization on customer pad
This bid will be for the manufacture, delivery, and installation of the transformer. The detailed
specifications are on file at the Electric Utility, 1331 South Ham Lane. The planned bid opening date is
November 5, 2015.
FISCAL IMPACT: The total cost of the transformer including delivery and installation is
estimated to be $750,000.
FUNDING AVAILABLE: Included in FY2015/16 Account No. 50199000.77020.
APPROVED:
en chwa5auer, City Manager
Approve Specifications and Authorize Advertisement for Bids to Procure 35 MVA 60/12 W Power Transformer
October 21, 2015
Page 2 of 2
Iffl; A. KirW
c Utility Director
PREPARED BY: Jules L. Marchesseault, Engineering and Operations Manager
EAK/JM/lst
APPROVED:
Stephen Schwabauer, City Manager