HomeMy WebLinkAbout1992-181ORDINANCE NO. — (F1
AN ORDINANCE PROVIDING FOR THE EXPENDITURE OF FUNDS FOR PURCHASES
OF MATERIALS OR EQUIPMENT WHICH ARE AVAILABLE FROM ONLY ONE SOURCE
IN ACCORDANCE WITH THE PROVISIONS OF STATE LAW EXEMPTING SUCH PUR-
CHASES FROM REQUIREMENTS OF COMPETITIVE BIDS, AND PROVIDING AN EF-
FECTIVE DATE.
WHEREAS, Section 252.022 of the Local Government Code provides
that procurement of items that are only available from one source,
including: items that are only available from one source because of
patents, copyrights, secret processes or natural monopolies; films,
manuscripts or books, electricity, gas, water and other utility
purchases, captive replacement parts or components for equipment,
and library materials for a public library that are available only
from the persons holding exclusive distribution rights to the ma-
terials; need not be submitted to competitive bids, and
WHEREAS, the City Council wishes to procure one or more of the
items mentioned in the above paragraph, NOW, THEREFORE,
THE COUNCIL OF THE CITY OF DENTON HEREBY ORDAINS•
SECTION I. That the following purchases of materials, equip-
ment or supplies, as described in the "Purchase Orders" attached
hereto, are hereby approved:
PURCHASE AMOUNT
ORDER NUMBER VENDOR
30267 GENERAL ELECTRIC $74,471.00
30268 GENERAL ELECTRIC $85,000 00
SECTION II. That the acceptance and approval of the above
items shall not constitute a contract between the City and the
person submitting the quotation for such items until such person
shall comply with all requirements specified by the Purchasing
Department
SECTION III That the City Manager is hereby authorized to
execute any contracts relating to the items specified in Section I
and the expenditure of funds pursuant to said contracts is hereby
authorized.
SECTION IV That this ordinance shall become effective immedi-
ately upon its passage and approval
PASSED AND APPROVED this thAy; day of � 1992.
BOB CASTLEBERRY, MA
ATTEST:
JENNIFER WALTERS, CITY SECRETARY
BY:
APPROVED AS TO LEGAL FORM.
DEBRA A. DRAYOVITCH, CITY ATTORNEY
f
DATE OCTOBER 20, 1992
CITY COUNCIL REPORT
TO Mayor and Members of the City Council
FROM Lloyd V Harrell, City Manager
SUBJECT. PURCHASE ORDER #30267 - GENERAL ELECTRIC COMPANY
RECOMMENDATION: We recommend this purchase order in the amount of $74,471 00
be approved as presented
SUMMARY: Purchase Order #30267 to General Electric Company is for the hourly cost
of General Electric personnel to assist in the major overhaul of Unit Four Turbine
Generator The services performed by the General Electric Technicians is only
available from the original equipment manufacturer and is exempt from the bid
process as a single source procurement
BACKGROUND. Purchase Order *30267, Memorandum from Jim Thune, Electric
Production Manager and Field Engineering Service Rates published by General
Electric effective 2-4-91
TMENTS OR GROUPS AFFECTED: Maintenance of Electric
Equipment, Electric Utility Department and Citizens of Denton
FISCAL IMPACT: Funds for this expenditure will come from 1992-93 budget funds
account 610-080-0251-8339 current balance is $514,991 34
esp/e/ctfully submitted
v
Lloyd V Harre
City Manager
Approved.
Name Tom D Shaw, C P M.
Title. Purchasing Agent
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CITY
pURC (,kaR,,.1 !
199? OCT -9 PM 2 41
TO Jim Harder, Director Electric Utilities
FROM' Jim Thune, Electric Production Manager
SUBJECT Spencer Unit Four Turbine Generator Major Overhaul
DATE October 9, 1992
Dear Jim
The attached requisition funds the anticipated labor portion for site field
services and estimated shop services required to overhaul Unit Four Turbine
Generator
A major overhaul is scheduled for Unit Four Turbine Generator this winter (Nov -
Dec 1992) The overhaul will include complete disassembly of the turbine steam
path, removal of the generator field, disassembly of turbine stop, control and
extraction valving
Major service and repairs to be accomplished during this overhaul include
* Replace first stage nozzle per GE TIL recommendation
* Replace bushings, stems and discs to restore control valve response
* Install first stage metal temperature indication and differential
expansion instrumentation to effect improved start up condition control
* Inspect and test generator field and stator
* Install new erosion strips on L-0 last stage rotating blading
* Low speed balance the rotor assembly
* Modify back end stationary diaphragms for improved moisture drainage
* Numerous component inspections and service to restore machine
clearances
Periodic major service is necessary to maintain reliability of the steam turbine
and generator A major inspection is typically recommended every five to six
years depending on service Our machines have fewer hours than base loads
machines However, hundreds of starts or cycles do contribute adversely to
machine reliability and must be factored into the inspection schedule
The last major inspection of Unit Four Turbine was completed in January 1988
Since that time the Unit has experienced over 325 starts and 6500 hours of
operation The total cost of this overhaul is estimated around $300,000 00
Spread over the period since last overhaul, that cost represents approximately
2 mils in maintenance cost The reliability impact concerns over 1 million
PAGE TWO
MAJOR OVERHAUL
dollars of annual capacity revenue of which approximately 23% is supported by
Unit Four availability
General Electric provides propriety service specific to our machines Some non
proprietary services may be contracted to others although risk associated with
other's expertise would be assumed by the machine owner The attached
requisition funds the minimum service levels associated with proprietary work and
field engineering
Funding for this request has been budgeted under 8339, General Repairs and Fees
for 8339 Technical Services Accounts
Upon your review and concurrence, please forward for Council authorization
Thank You,
e-�
une,
Electric Production Manager
JT/ks
Attachments
File XXVI
REQUISITION/PURCHASE REQUEST
Unit4 Jim
DATE OCTOBER 20, 1992
CITY COUNCIL REPORT
TO Mayor and Members of the City Council
FROM Lloyd V Harrell, City Manager
SUBJECT PURCHASE ORDER 130268 - GENERAL ELECTRIC COMPANY
RECOMMENDATION: We recommend this purchase order in the amount of $85,000 00
be approved as presented
SUMMARY: Purchase Order #30268 to General Electric Company is for the estimated
cost of General Electric service shop personnel for services related to the major
overhaul of Unit Four Turbine Generator These services are only available from the
original equipment manufacturer and therefore exempt from the bid process
BACKGROUND: Purchase Order #30268, Memorandum from Jim Thune, Electric
Production Manager
Maintenance of Electric
lent and Citizens of Denton
FISCAL IMPACT Funds for this expenditure will come from 1992-93 budget funds
account #610-080-0251-8339 current balance is $514,991 34
apeecctfully submitted
v
4WL,
oyd V Harrel
City Manager
Approved*
Name Tom D. Shaw, C P M.
Title. Purchasing Agent
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RECEIVE;'_
CITY OF'ODi I
1992 OCT -9 PM 2' 41
TO Jim Harder, Director Electric Utilities
FROM Jim Thune, Electric Production Manager
SUBJECT Spencer Unit Four Turbine Generator Major Overhaul
DATE October 9, 1992
--------------------------------------------------------------------------
Dear Jim
The attached requisition funds the anticipated labor portion for site field
services and estimated shop services required to overhaul Unit Four Turbine
Generator
A major overhaul is scheduled for Unit Four Turbine Generator this winter (Nov -
Dec 1992) The overhaul will include complete disassembly of the turbine steam
path, removal of the generator field, disassembly of turbine stop, control and
extraction valving
Maior service and repairs to be accomplished during this overhaul include
* Replace first stage nozzle per GE TIL recommendation
* Replace bushings, stems and discs to restore control valve response
* Install first stage metal temperature indication and differential
expansion instrumentation to effect improved start up condition control
* Inspect and test generator field and stator
* Install new erosion strips on L-0 last stage rotating blading
* Low speed balance the rotor assembly
* Modify back end stationary diaphragms for improved moisture drainage
* Numerous component inspections and service to restore machine
clearances
Periodic major service is necessary to maintain reliability of the steam turbine
and generator A major inspection is typically recommended every five to six
years depending on service Our machines have fewer hours than base loads
machines However, hundreds of starts or cycles do contribute adversely to
machine reliability and must be factored into the inspection schedule
The last major inspection of Unit Four Turbine was completed in January 1988
Since that time the Unit has experienced over 325 starts and 6500 hours of
operation The total cost of this overhaul is estimated around $300,000 00
Spread over the period since last overhaul, that cost represents approximately
2 mils in maintenance cost The reliability impact concerns over 1 million
PAGE TWO
MAJOR OVERHAUL
dollars of annual capacity revenue of which approximately 23% is supported by
Unit Four availability
General Electric provides propriety service specific to our machines Some non
proprietary services may be contracted to others although risk associated with
other's expertise would be assumed by the machine owner The attached
requisition funds the minimum service levels associated with proprietary work and
field engineering
Funding for this request has been budgeted under 8339, General Repairs and Fees
for 8339 Technical Services Accounts.
Upon your review and concurrence, please forward for Council authorization
Thank You,
e.�
une,
Electric Production Manager
JT/ks
Attachments
File XXVI
REQUISITION/PURCHASE REQUEST
Unit4.Jim