HomeMy WebLinkAboutAgenda Report - October 3, 2007 E-08AGENDA ITEM i
A% CITY OF LODI
COUNCIL COMMUNICATION
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AGENDATITLE: Approve change orders for the repair of two power transformers at Industrial
Substation ($27,431) (EUD)
MEETING DATE: October 3, 2007
PREPARED BY Electric Utility Director
RECOMMENDED ACTION: Approve the change orders for the repair of two power transformers
at Industrial Substation ($27,431).
BACKGROUND INFORMATION: On May 16,2007, the City Council awarded the transformer
maintenance services to Waukesha Electric Systems, Inc.
(Waukesha) for four power transformers with load tap changers in
Henning and Industrial Substations as per Resolution No. 2007-86. Waukesha started their services at
Industrial Substation on September 17,2007.
Testing and inspection of both Transformer Banks land 3 at Industrial Substation revealed wearing of
mechanical and electrical parts, faulty gauge, absence of dehydrating system, defective motor brake
system, excessive coking and carbon deposits, leaking barrier between tap changer chamber and main
tank, worn-out 0 -Rings, and the need to overhaul the tap changer mechanisms. Detailed scope of repair
works for both transformers are stipulated in the attached copies of Change Orders land 2. The original
contractfor Waukesha Electric Systems to perform the routine maintenancetest and inspection for the
portion of two power transformers at I ndustrial Substation is $15,125.
The repairswould prolong the useful I i e of both power transformers and would minimize system failure.
It is therefore recommended by Staff that the City Council approve the Change Orders 1 and 2 as issued
to Waukesha Electric Systems.
FISCAL IMPACT: Not to exceed $27,431.
FUNDING: AccountNo 160652.7720
Manager
George F. Morrow
Electric Utility Director
PREPARED BY: DemyBucaneg, Jr., P.E.. Manager, Engineering& Operations
GFM/DBAst
APPROVED: /—Z�
RI . n city Manaripr