HomeMy WebLinkAboutPR 21688: ELECTRICAL TRANSFER STATION REPAIRS AT THE WATER PURIFICATION PLANT City of
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Texas
INTEROFFICE MEMORANDUM
Date: March 23, 2021
To: The Honorable Mayor and City Council
Through: Ronald Burton, City Manager
From: Donnie Stanton, Interim Director of Utilities
RE: PR 21688—Electrical Transfer Station Repairs at the Water Purification Plant
Introduction:
The intent of this Agenda Item is to seek City Council's ratification for the emergency repair of
the electrical transfer station at the Water Purification Plant at 1101 H.O. Mills Boulevard. The
electrical transfer station provides power to the Water Purification Plant and was damaged by a
power surge to the plant. The plant could not purify water without electricity at this point.
Emergency authorization from the City Manager was sought due to the critical nature of the
electrical transfer station in the Water Purification process, for the protection of public health
and safety. Peak Engineering of Port Neches, Texas, was chosen to do the repairs and provide
generators in the amount of$66,463.86. This is considered to be a fair and reasonable price for
the required work. Budgeted funds are available in Account No. 410-1252-532.42-00,
Equipment Maintenance.
Background:
The electrical transfer station provides power to the Water Purification Plant at 1101 H.O. Mills
Boulevard and was damaged by a power surge to the plant, detailed as follows:
On February 10, 2021 at approximately 7:45am it was noted that part of the facility had lost
power and the breakers inside the 15kV switchgear that distributes power to the facility had
tripped open on a ground fault.
Peak Engineering was called out on site to investigate,and it was noted that both feeder breakers
that feed power to the new substation at the high service building and the new MCC building
had tripped. Since both feeders were energized but only one of them had load, this was an
indication that a fault had occurred on a common location for both feeders.
"Remember,we are here to serve the Citizens of Port Arthur"
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After tracing out the two feeders, we found the 15kV transfer switch at the new MCC building
(TS2) had faulted on the load bus interconnecting the two 15kV load interrupter switches. It is
believed this fault occurred on the bus insulator between phase A and phase B and could be due
to manufacture defect and/or high moisture content. With this piece of equipment being a custom
engineered item, it was noted that repair would not be completed in a timely manner, and a
generator was called out to back feed power to the MCC building until the parts could be sourced
to repair TS2. Also,the feeders for TS2 were disconnected allowing the energization of TS l and
providing additional variable speed high service pumps on standby.
For contingency plans, it was agreed to have a second generator on stand-by at the Houston yard
dedicated to the Water Purification Plant. After the power was restored and generator and
equipment operation were verified, we started dismantling the damaged pieces of TS2 while
noting required replacement parts.
On February 11, 2021, Peak Engineering was working with the switch manufacturer to develop
a detailed list of replacement parts/lead times to have all this information by February 12,2021.
Disassembly of TS2 was completed and TS 1 was evaluated in detail and cleaned. It was noted
TS 1 did not show the same signs of moisture intrusion as TS2. Also, during our investigation,
it was noted the space heaters in both TS1 and TS2 were not operating properly. Per the City's
request due to the winter storm arriving, Peek Engineering put the plan into motion to relocate
the standby generator from the Houston yard to the Water Plant to allow for more reliability in
the event the existing generator fails. The second generator was on site February 12, 2021 at
approximately 8am.
Budget Impact:
Funding in the amount of$66,463.86 is available for the above mentioned repairs and generators
in Account No. 410-1252-532.42-00, Equipment Maintenance.
Recommendation:
It is recommended that City Council approve P. R. No. 21688, ratifying the emergency repair
of the electrical transfer station and backup generators at the Water Purification Plant.
"Remember, we are here to serve the Citizens of Port Arthur"
P.R. No. 21688
3/23/21 bw
Page 1 of 2
RESOLUTION NO.
A RESOLUTION REQUESTING THAT CITY COUNCIL RATIFY THE
CITY MANAGER'S DECISION FOR THE EMERGENCY REPAIRS TO
THE ELECTRICAL TRANSFER STATION AND PROVIDE
GENERATORS AT THE WATER PURIFICATION PLANT BY PEAK
ENGINEERING OF PORT NECHES, TEXAS WITH A TOTAL
BUDGETARY IMPACT OF $66,463.86, ACCOUNT NO. 410-1252-532.42-
00, EQUIPMENT MAINTENANCE.
WHEREAS, the electrical transfer station provides power to the Water Purification Plant
at 1101 H.O. Mills Boulevard and was damaged by a power surge to the plant on February 10,
2021, which caused immediate public health and safety concerns; and,
WHEREAS, this electrical transfer station was repaired and generators were provided by
Peak Engineering of Port Neches, Texas, under emergency conditions authorized by the City
Manager; and,
WHEREAS, pursuant to Section 252.022(a)(2) this purchase is authorized because of a
public calamity that requires the immediate appropriation of money to relieve the necessity of the
municipality's residents or to preserve the property of the municipality; and,
WHEREAS, it is further authorized pursuant to Section 252.022(a)(3) because of
unforeseen damage to public machinery, equipment, or other property; and,
WHEREAS,the total budgetary impact for the repair of the electrical transfer station and
provide generators is $66,463.86; and,
WHEREAS,City Manager approved proceeding with these repairs on an emergency basis
(Exhibit A).
NOW THEREFORE,BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY
OF PORT ARTHUR:
THAT, in order to protect the health and safety of our citizens, the City Council hereby
approves and ratifies the expense of the emergency repairs to the electrical transfer station and
provide generators with a total budgetary impact of$66,463.86 (Exhibit B); and,
P. R. No. 21688
3/23/21 bw
Page 2 of 2
THAT, funding is available in Account No. 410-1252-532.42-00, Equipment
Maintenance; and,
THAT, a copy of the caption of this resolution be spread upon the minutes of the City
Council.
READ, ADOPTED, AND APPROVED THIS day of
2021 at a Regular Meeting of the City Council of the City of Port Arthur, Texas,by the following
vote:
AYES: Mayor
Councilmembers:
NOES:
Thurman"Bill"Bartie
Mayor
ATTEST: APPROVED AS TO FORM:
L� hJ2144,-/el
Sherri Bellard alecia Ti eno
City Secretary City Attorney
APPROVED: FOR ADMINISTRATION: APPROVED AS TO AVAILABILITY
OF FUNDS:
Ronald Burton Kandy Dan' 1
City Manager Interim Director of Finance
I //
Donnie Stanton Clifton Williams, CPP:
Interim Director of Utilities Purchasing Manager
EXHIBIT "A"
itIV°"! r I/;-11'1"
INTEROFFICE MEMORANDUM
Date: February 10, 2021
To: Ron Burton, City Manager
From: Donnie Stanton, Interim Director of Utilities
RE: Approval for Emergency Repairs to Water Plant
An electrical surge damaged the transfer switch at the Water Plant on Hwy 73. This surge
knocked out power to the main plant and the damage to the transfer switch prevents us from
running the generator.
The combined cost of repairs by Peak Electrical, LLC and generator rental from Stewart &
Stevenson is estimated to be $30,000. The Utilities Department is renting a 500kW 480 volt
generator from Stewart& Stevenson to run the plant.
Multiple bids were not solicited due to Local Government Code allowances to preserve Public
Health and Safety from emergency conditions. This is a potential direct threat to the health and
safety of the citizens of Port Arthur. Pursuant to Section 252.022(a)(2) this purchase is
authorized because of a public calamity that requires the immediate appropriation of money to
relieve the necessity of the municipality's residents or to preserve the property of the
municipality. It is further authorized pursuant to Section 252.022(a)(3) because of unforeseen
damage to public machinery, equipment, or other property.
Emergency approval is requested of the City Manager to hire a contractor, Peak Electrical
Engineering,to troubleshoot and make emergency repairs.
A proposed resolution will be presented to City Council for ratification. Account number is 410-
1252-532.42-00, Equipment Maintenance.
I, Ron Burt"'.pprove the emergency repair to the Water Plant.
id I I eitt\
Ron Burton
City Mana.•
"Remember,we are here to serve the Citizens of Port Arthur"
EXHIBIT "B"
PEAKPO Box 969 Invoice
Port Neches, TX 77651
ENGINEERING
•Co"etr,x Phone: (409)729-2226 Date Invoice#
3 19,2021 4450
Bill To Ship To
City of Port Arthur City of Port Arthur
PO Box 1089 1101 H.O.Mills Road
Accounts Payable Port Arthur,TX 77640
Port Arthur,TX 77641
S.O. No. P.O.No. Terms Due Date Other
l2l-l0; 222938 Net 30 4,18;2021 15KV LIS Fault
Item Description Ordered Prey. lnvoi... Invoiced Rate Amount
Equipment AC voltage detector 1 0 1 69.00 69.00
Equipment 5kV Megger 1 0 1 262.20 262.20
Equipment 320kW Generator 2 0 2 4,450.17 8,900.34
Equipment 4/0 AWG,50'cables with pigtails 2 0 2 207.00 414.00
Equipment Standby 320kW generator 2 0 2 1,670.15 3,340.30
Equipment Adjustment for Generator Rentals for monthly 1 0 1 9,925.32 9,925.32
instead of weekly. Also include freight,
maintenance,and fuel.
MMR to provide support labor to Water
Treatment Plant 15kV LIS Fault project.
Technical Serv... MMR Time for 2/10/2021 and 2/11/2021. 1 0 I 2,080.30 2,080.30
Technical Serv... MMR Time for 3/1/2021-3/4/2021 1 0 1 10,454.23 10,454.23
Technical Serv... ERS to test 15kV LIS switch 1 0 1 1,933.15 1,933.15
Equipment Fuses and Fuse Clips 1 0 1 4,160.67 4,160.67
Equipment Materials: 1 0 1 3,042.38 3,042.38
Terminal Strips
Wire
Insulators
Micarta Board
Equipment Materials: 1 0 1 226.73 226.73
Plastic Tape
Lectra Clean
Red Urethane Coating
Silicone Tape
Equipment Bus Sections 1 0 1 2,049.17 2,049.17
Equipment (12)6"Red insulators 1 0 1 286.07 286.07
Subtotal
Sales Tax (8.25%)
Total
Payments/Credits
Balance Due
Page 1
969
PEAK P Box Invoice
Port Neches, TX 77651
I• h: N ING
Phone: (409)729-2226 Date Invoice#
3/19/2021 445(1
Bill To Ship To
City of Port Arthur City of Port Arthur
PO Box 1089 1101 H.O.Mills Road
Accounts Payable Port Arthur,TX 77640
Port Arthur,TX 77641
S.O. No. P.O. No. Terms Due Date Other
121-10 222938 Net 30 4 IS 2021 15KV LIS Fault
Rem Description Ordered Prey. Invoi... Invoiced Rate Amount
Senior Engine... Josh Landry Reg his 2/10/2021-2/12/2021 Site 24 0 24 140.00 3.360.00
visit to troubleshoot tripped 15kV switchgear
breakers. Identify fault on load bus of T2 15kV
LIS transfer switch. Isolate T2 from power
distributions system and re-energize TI. Source
generator for T2 substation and assist with set
up and connection to MCC via generator
breaker. Work with switch manufacture to
establish detail bill of material to replace
material in equipment that was damaged form
fault. Prepare event summary,plan for repairs,
and estimate. Identify material that can be
sourced from other suppliers and OEM to
shorten lead times. Identify fuse and fuse
holders as longest lead item. Submit two
options for repairs that include material sourced
from manufacture and other suppliers. Start
working with other suppliers for sourcing parts
and equipment.
Subtotal
Sales Tax (8.25%)
Total
Payments/Credits
Balance Due
Page 2
p EnK PO Box 969 Invoice
Port Neches, TX 77651
ENGINEERING
Engineers•Constructors Phone: (409)729-2226 Date Invoice#
3/19/2021
Bill To Ship To
City of Port Arthur City of Port Arthur
PO Box 1089 1101 H.O.Mills Road
Accounts Payable Port Arthur,TX 77640
Port Arthur,TX 77641
S.O. No. P.O.No. Terms Due Date Other
121-107 222938 Net 30 4/18/2021 15KV LIS Fault
•
Item Description Ordered Prey. Invoi... Invoiced Rate Amount
Senior Project... Kirk Wyble Reg hrs 2/10/2021 and 2/12/2021 30 0 30 120.00 3,600.00
Called out to find the cause of a ground fault on
both 15kV feeders to the new MCC at High
Service building and the new MCC for the new
train. I found serious ground fault indications
at LS2 which is the 15kV transfer switch at the
new train building. It appeared,upon further
inspection that the heat strips were not
protecting the interior of the switch and caused
a 30kV fault in the switch. We proceeded to
isolate the feeder from LS1 to LS2 and
re-energized LS1 to enable operations to use
HSP-2 and HSP-6 if needed. We were given
approval to disassemble LS2 and remove all
affected parts and start a clean up to asses all
damage needed to be replaced. A material list
was generated and submitted to various
vendors. Material has been ordered,but due to
the weather delivery could be slow.
Senior Enginee... Josh Landry Reg hrs 2/15/2021-2/19/2021 13 0 13 140.00 1,820.00
Work on specifications for replacement material
in medium voltage load interrupter switch that
was damaged during the fault. Verify other
manufacture options match same specifications
as originally equipped for medium voltage EJO
fuses,live parts of fuse holder,heater circuit
wire,barriers,low voltage cable,polymer
insulators,and porcelain insulators.
Subtotal
Sales Tax (8.25%)
Total
Payments/Credits
Balance Due
Page 3
P EnK PO Box 969 Invoice
Port Neches, TX 77651
ENGINEERING
En •c nsti,,tors Phone: (409)729-2226 Date Invoice#
19 2021 4450
Bill To Ship To
City of Port Arthur City of Port Arthur
PO Box 1089 1 101 H.O.Mills Road
Accounts Payable Port Arthur,TX 77640
Port Arthur,TX 77641
S.O. No. P.O. No. Terms Due Date Other
121-107 222918 Net 30 4118,2021 15KV LIS Fault
Item Description Ordered Prey. lnvoi... Invoiced Rate Amount
Senior Project... Kirk Wyllie Reg hrs 2 16 2021 Traveled to S 0 8 120.00 960.00
facility and confirmed insulators,micarta board
and buss pieces were correct due to the
drawings that had been provided by the
manufacturer. Contacted the insulator and
micarta board vendor to proceed with the order.
Delivered buss pieces to vendor for
replacement. Expecting material to be delivered
week of 2/21/2021. Confirmation will be
provided after shipping.
Senior Project... Kirk Wyble Reg firs 2/22/2021,2/23/2021,and 20 0 2ll 120.00 2,400.00
2/26/2021 Started receiving material and
transporting what had been delivered. Still
waiting on some material that is due at the end
of the week. Contacted MMR superintendent to
confirm that we could start with repairs on
Monday 3/1.Rented megger and tested existing
cables from LS1 to LS2. Both sets megged out
ok and the cables to LS2 were secured in LS1
so that the power could be energized for
operation of HSP2 and 6. Gathered all
remaining material and took it out to jobsite.
Verified MMR would be able to start work on
Monday.
Subtotal
Sales Tax (8.25%)
Total
Payments/Credits
Balance Due
Page 4
P EnK PO Box 969 Invoice
Port Neches, TX 77651
E N G I N E E R. I N
nvineerv•C'.nnstnctrnv Phone: (409)729-2226 Date Invoice#
3 19 2021 4450
Bill To Ship To
City of Port Arthur City of Port Arthur
PO Box 1089 1101 H.O.Mills Road
Accounts Payable Port Arthur,TX 77640
Port Arthur,TX 77641
S.O. No. P.O. No. Terms Due Date Other
121-107 222938 Net 30 4 18 202 1 15KV LIS Fault
•
Item Description Ordered Prey. lnvoi... Invoiced Rate Amount
Senior Enginee... Josh Landry Reg hrs 3 1 2021 and 3/4/2021 13 0 13 140.00 1_`t2onu
Coordinate testing requirements and scope of
work with testing group. Site visit to test
re-assembly of 15kV load interrupter switch per
NETA acceptance and maintenance testing.
Perform insulation resistance on linel,line2,
and load bus and identify B-phase values were
below NETA acceptance values. Investigate
line 1 and line 2 bus and identify insulators and
bus boots showed signs of tracking and corona.
Determine 12 insulators on both line bus sides
required replacing. Source new insulators and
material to repair. Replace insulators,clean
porcelain with Collinite,and sealed glastic.
Confirmed switch tested within NETA
acceptable values. Test 15kV cables feed A,
feed B,and transformer 1600 feeder and
confirm values above NETA acceptable values.
Assist with energizing and verify operation of
equipment with substation power.
Subtotal
Sales Tax (8.25%)
Total
Payments/Credits
Balance Due
Page 5
PEAKPO Box 969 Invoice
Port Neches, TX 77651
ENGINEERING
Imp •Con strKt Phone: (409)729-2226 Date Invoice#
H 21)21 445n
Bill To Ship To
City of Port Arthur City of Port Arthur
PO Box 1089 1 101 H.O.Mills Road
Accounts Payable Port Arthur,TX 77640
Port Arthur,TX 77641
S.O. No. P.O. No. Terms Due Date Other
222938 Net 30 4;18/2021 15KV LIS Fault
Item Description Ordered Prey. Invoi... Invoiced Rate Amount
Senior Project... Kirk Wyble Reg hrs 3/1/2021-3/4/2021 40 0 40 120.00 4,800.00
Isolated TS2 and TS1 so that MMR could begin
installing new parts into the switch. Energized
TS 1 so that the plant could run HSP2 or 6 if
needed. Bus bar,insulators,and micarta board
were installed. Called in a MMR hand to install
stress cones on the feeder to transformer
TR1600. Vertiv began testing the entire switch
and found other issues,involving moisture,that
would cause problems later in the future. It was
decided to correct all issues at this time due to
the fact the switch was de-energized and parts
were available. Upper bus bars and insulators
were removed,cleaned and new insulators were
installed. Testing was started again and all
parameters were met. TS1 and TS2 were
terminated and energized. Rotation was
checked and everything looked good. System
was turned over to plant personnel.
Senior Enginee... Josh Landry Reg hrs 3/9/2021 and 3/10/2021 4 i i 4 140.00 560.00
Coordinate pick up and delivery of two
generators. Review and comment on rental
quantity and duration. Review and comment on
preliminary testing report. Prepare final project
summary and submit.
Subtotal $66,463.86
Sales Tax (8.25%) $o.00
Total $66,463.86
Payments/Credits $0.00
Balance Due $66,463.86
Page 6