HomeMy WebLinkAboutAgenda Report - August 5, 1992 (64)CW
CITY OF LODI COUNCIL COMMUNICATION
ANDA TITLE: Specifications and Advertisement for Bids for
One 60-12kV Power Transformer with LTC (EUD 92-6)
MEETING DATE: August 5, 1992
SUBMITTED BY: Electric Utility Director
RECOMMENDED ACTION: That the City Council ' approve thi specifications and
authorize advertisement for bids for one 60-12kV - Power
Transformer.
BACKGROUND INFORMATION: The #1 transformer bank a t McLane Sibstation consists of
a power transformer and a separate voltage regulator.
The voltage regulator was originally installed at
Killelea Substation when the City received service at
12kV from PG&E in the early 1960's. The regulator i s in poor`` mechanical condition
and has had sevarai recent component failures. The regulatdr's manufacturer has
been out of business for several years making repair- parts extremely difficult to
locate, i f not impossible. Given the condition of this very important system
component, a replacement was budgeted during the 1990-91 fiscal year. The
Department, in talking to power transformer manufacturers. was led to bell -we that
sufficient interest existed to bid and build a replacement regulator. However,
after two bids for a regulator. both of which were rejected, it became apparent that
no real interest existed to construct a replacement regulator at a cost that would
make this alternative economically justifiable.
The most economical alternative considering the bid pri es received for a
replacement regulator i s a complete replacement of the regWllator-transformer
combination with a new power transformer having built-in regulation. The additional
investment for the replacement unit will easily be returned over its life due to
reduced losses as a result of improved materials and constAuction techniques in
today's power transformers.
The estimated cost of this power transformer iS 9480.000 withdelivery expected in
approximately 40 wee,;s. The bid opening date has been set f r Friday. August 2.8,
1992. i
i
FUNDING: included in the Department's 1992-93 f , sca l year budq�t.
Henry J. Rice, Clec. Utility Director
APPROVED
TlIOlMAS A PETERSON