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MEDIUM VOLTAGE TESTING & MAINTENANCE

PSU – Portland, Oregon

Prepared For:

Portland State University

320 SW Washington, Suite 200

Portland, Oregon 97204

PSU – Portland, Oregon MEDIUM VOLTAGE SYSTEM TESTING & MAINTENANCE UPGRADE PROPOSAL FORM

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SCIENCE BUILDING #1 (SB1)

1.1 SB1-5.2.1 Bid – ATS Feeder Bracing:

Equipment: Medium Voltage Switchboard C-2 Automatic Transfer switch

Scope of Work:The incoming feeders for Side A and Side B are not braced. These conductors

should be braced to protect equipment during fault conditions. Provide NEMA

and OEM recommended non-conducting bracing.

Location: Science Building #1

1.2 SB1-5.2.3 Bid – Phase Barrier Replacement

Equipment: Medium Voltage Switchboard "MAIN"

Scope of Work:

The phase barriers between A and C phase Potential Transformers (PT's) of

the B side feed were badly damaged from a previous fuse operation.

Replace the barrier material with non-conducting "glastic" or other approved

material.


1.3 SB1-5.2.6 Bid – ATS Interlocks

Equipment: Medium Voltage Switchboard C-2 Automatic Transfer switch

Scope of Work:

The electrical interlocks, which prevent opening a door to the ATS,

while it is energized, is disabled. This feature is designed for

personnel safety in the event of a transfer occurring when the switch

door is open. Restore the interlock to a functioning condition. Demostrate

completion and functtioning the interlock the Owner and Engineer.


1.4

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1.4 SB1-5.15.4 Bid – TRANSFORMER RE-TESTING

1.5 SB1-A Bid – Seismic Anchorage

Equipment: Medium Voltage Switchboard in Room SB4

Scope of Work:

Provide seismic bracing calculations performed by an Oregon registered

structural engineer, a firm such as ISAT, and install the specified anchoring

devices. The switchboard needs to be anchored externally without shutting down

the switchboard.


1.6 SB1-B Bid – Spare MV Fuse

Equipment: 8-Section Medium Voltage Switchboard

Scope of Work:Provide quantities and type of fuses listed below. Field Verify fuses provided

match to the existing ones that are installed.

(3) SM-4 SLOW: 20E; (3) STD: 65E; (3) SM-4 SLOW: 60E


WEST HEATING PLANT (WHP)

1.7 WHP-A Bid – Repair Terminations & Retest

Equipment: Medium Voltage Dry Type Transformers

Scope of Work:

CH and CL power-factor or dissipation-factor values will vary due to many

factors such as support insulators and bus work utilized on dry

transformers. Additionally, de-energized dry type transformers allowed to

decrease to ambient temperature may be exposed to pulling in moisture

from the surrounding air which is indicative of higher power factor values.

Under ideal conditions, distribution transformers should be expected to

have CHL power factors of 5.0 percent or less. The above listed

transformers were outside of this range per NETA MTS 2011-

7.2.1.2.3.2.3. Peform and document CH and CL re-testing on this

transformer.

Location: Science Building 1, XFMR SB-1


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Equipment: Medium Voltage Switchboard

Scope of Work:The medium voltage terminations on incoming A & B feeders are degraded.

Retest using Partial Discharge testing and comment if terminaitons need to be

replaced. Replacement is not part of this bid.

Location: West Heating Plant

1.8 WHP-5.4.1 Bid – Repair Terminations & Retest

Equipment: Main Medium Voltage Switchboard

Scope of Work:

The current transformers on A and B feed were not installed per the

manufacturer’s instructions. The MV Cable drain wires were not routed back

through the current transformer as detailed in the installation drawings, thereby

desensitizing the fault current block transfer function. This switch has been

designed to block a transfer in the event a fault to prevent high current arcing

across the switch contacts. This feature was effectively disabled as a result of

the incorrect installation of the current transformers. Route the drain wires back

through the current transformers per the manufacturer’s Installation instructions.


1.9 WHP-B Bid – Seismic Anchorage

Equipment: Medium Voltage Switchboard

Scope of Work:




the switchboard.

Location: West Heating Plant Mezzanine

1.10 WHP-C Bid – Spare MV Fuse




(3) SM-4 STD: 10E; (3) SM-4 SLOW: 100E



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MILLER LIBRARY (ML)

1.11 ML-5.6.1 Bid – Transformer Cooling Fans

Equipment: Medium Voltage Dry Type Transformer

Scope of Work:

Three of the six Millar Library dry type transformer cooling fans are

seized, and the fan controls are not operational. Provide two scopes of work: 1)

Cost to replace fans; 2) Cost to replace controller. The intent is to only replace

the components that are failed.

Location: Miller Library

1.12 ML-1A-Repair Bid – MV Disconnect Switch Repair/ Adjustment

Equipment: Medium Voltage Disconnect Switch

Scope of Work:The existing MV switch needs either or be replaced or adjusted/ repaired.

Provide price to rpair/ adjust the switch. Include any parts that are required, all

lubrication and testing.


1.13 ML-1B- Replace Bid – MV Disconnect Switch Replacement

Equipment: Medium Voltage Disconnect Switch

Scope of Work:

If the existing MV switch is determined to be beyond repair or adjusting then

provide price to replace the entire switch. Include labor, permits, rigging,

installation, terminations, testing, and all other items to create a complete

working switch. Indicate manufacturer make and model numbers of proposed

unit.


1.14 CHSE-5.8.1 Bid – Bracing and Supports

CRAMER HALL (CH)


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Equipment: Medium Voltage Switchgear "CH-101"

Scope of Work:

The cable terminations of five of the six medium voltage switches at

the CH-101 switchgear have been changed from pot head terminations to stress

cones. The pot head mounting supports were removed to support the upgraded

terminations, however only two of the switches have the cable supports and

bracing installed.Provide installation of required cable bracing and supports for

the three remaining switches. Field verify which feeders are involved.

Location: Cramer Hall S.E.

1.15 CHSE-5.8.3 Bid – ATS Controls Upgrade

Equipment: Medium Voltage Switchgear "CH-200"

Scope of Work:

The medium voltage automatic transfer switch serving the Cramer

Hall no longer functions in automatic. Four of the Six Elbow

Potential Devices (EPD) are defective and can no longer sense

healthy voltages. These voltage sensing relays are no longer

available from the original manufacturer or aftermarket suppliers.

In order to return this ATS to serviceable condition provide a retrofit kit

that includes all new sensors/ electronics/ relays.



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1.16 CHNW-5.9.2 Bid – Oil-filled Transformer Testing

Equipment: Medium Voltage Oil-Filled Transformer

Scope of Work:

The three oil filled transformers, connected three phase, feeding Cramer Hall NW

appear to have contained PCB’s at one point and the label has been painted

over to obscure the warning. No other labels were found identifying that the unit

has been verified <50ppm PCB content. Perform and document testing on all

three transformers to detemine PCB levels and to determine condition of each

transformer. Provide new labels with required text.

Location: Cramer Hall NW

1.17 CHNW-A Bid – Seismic Anchorage


Scope of Work:




the switchboard.

Location: Cramer Hall N.W.

1.18 CHSE-B Bid – Seismic Anchorage


Scope of Work:




the switchboard.


1.19 CHSE-C Bid – Seismic Anchorage

Equipment: 3-Section Medium Voltage Chiller Switchboard

Scope of Work:




the switchboard.



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1.20 CHNW-D Bid – Spare MV Fuse




(3) SM-4: 40E; (3) SM-4: 60E; (3) SM-4: 80E

Location: Cramer Hall N.W.

1.21 CHSE-E Bid – Spare MV Fuse


Scope of Work:

Provide quantities and type of fuses listed below. Field Verify fuses provided


(3) SM-5: 75E; (3) SM-5: 65E; (3) SM-5: 25E; (3) SM-4: ??E; (3)

SM-4: 125E; (3) SM-5: 100E


1.22 CHSE-F Bid – Spare MV Fuse

Equipment: 3-Section Medium Voltage Switchboard: CHSE-201, 202



(3) EJ-O-1: 65E; (3) SM-4: 200E


1.23 NH-5.11.1 Bid – MV Transformer Anchoring

NEUBERGER HALL (NH)


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Scope of Work:

The transformer in this substation is not properly anchored or supported. The

core supports are bent, loose and misaligned. The transformer is quite heavy

and will not likely move on its own however, during fault conditions or external

seismic events the core can be subjected to electro-mechanical and mechanical

forces which can unseat the core and windings leading to catastrophic failure.

Obtain Oregon structural engineered anchorage calculations and anchor

transformer per those calculations.

Location: Neuberger Hall - Room 003

1.24 NH-5.11.2 Bid – MV Transformer Retest


Scope of Work:

The power factor of this transformer was found to be 7%, greater than the upper

limit of 5%. The polarization index (PI) and Dialectric Absorption Ratio (DAR)

were both less than 1.0. According to IEEE standard C57.12.91 a PI of less than

2.0 indicates ingress of moisture into the transformer insulation. Because this

transformer is installed in a very humid location it is expected that moisture is

contributing to the poor insulation test values. Additionally, the turns ratio test

was out of tolerance. Perform and document the PI and DAR testing on the

transformer.

Location: Neuberger Hall - Room 003

1.25 NH-A Bid – Seismic Anchorage

Equipment: 3-Section Medium Voltage Switchboard in Room 005

Scope of Work:




the switchboard.

Location: Neuberger Hall

1.26 NH1-B Bid – Seismic Anchorage


Scope of Work:




the switchboard.



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1.27 NH-C Bid – Spare MV Fuses




(3) STD: 65E


1.28 NH1-D Bid – Spare MV Fuses




(3) STD: 65E; (3) SM-4 SLOW: 20E; (3) SM-4 SLOW: 80E


1.29 SMSU-5.13.1 Bid – MV Transformer Fan Controls


Scope of Work:

The transformer at this location has a defective fan control module.

The temperature was incorrect and the reading lowered when heat

was applied to the thermocouple indicating that the thermocouple

installed is not the correct type of the control module. Provide cost to investigate

& repair controller/thermocouple pair and cost to replace unit.

Location: Smith Memorial Student Union

1.30 SMSU-A Bid – Seismic Anchorage


Scope of Work:




the switchboard.


1.31 SMSU-B Bid – Spare MV Fuses

SMITH MEMORIAL STUDENT UNION (SMSU)


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(3) SM-4 STD: 50E; (3) SM-4 SLOW: 50E; (3) SM-4 STD: 40E


1.32 SRTC-5.3.1 BID – MV TRANSFORMER TERMINATION

Equipment:Medium Voltage Dry Type Transformer - Switchboard #1

Transformer South"

Scope of Work: Remove existing pothead and replace the 12.47KV primary cable on phase “B”.

Location: Science Research & Teaching Center - Building 2

1.33 SRTC-A Bid – Seismic Anchorage

SCIENCE RESEARCH & TESTING CENTER (SRTC) Science Building #2


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Equipment: 6-Section Medium Voltage Switchboard in Room B3-66

Scope of Work:




the switchboard.


1.34 SRTC-B Bid – Spare MV Fuses

Equipment: 5-Section Medium Voltage Switchboard in Room B3-66



(3) SM-5: 175E; (3) SM-5: 65E; (3) SM-5: 80E; (3) SM-5: 80E


1.35 SRTC-C Bid – Seismic Anchorage

Equipment: Dual A/ B Lineup Medium Voltage Switchboard in Room B3-30

Scope of Work:




the switchboard.


1.36 SRTC-D Bid – Spare MV Fuses

Equipment: Dual A/B Lineup Medium Voltage Switchboard in Room B3-30

Scope of Work:

Provide quantities and type of fuses listed below. Field Verify fuses provided


LINEUP "A": (3) SM-5 SLOW: 300E; (3) SM-5 SLOW: 300E;

LINEUP "B": (3) SM-5 SLOW: 150E; (3) SM-5 SLOW: 200E;

(3) SM-5 SLOW: 300E; (3) SM-5 SLOW: 150E; (3) SM-5 SLOW: 200E;

(3) SM-5 SLOW 200E


1.37 XSB-A Bid – Seismic Anchorage

XSB – EXTENDED STUDIES BUILDING (D.C.E. BLDG)


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Scope of Work:




the switchboard.

Location: Extended Studies Building

1.38 XSB-B Bid – Spare MV Fuses




(3) SM-4 STD: 15E

Location: Extended Studies Building

1.39 LBE-A Bid – Seismic Anchorage

Equipment: 3-Section Medium Voltage Switchboard in Room C1

Scope of Work:




the switchboard.

Location: Library Building East

1.40 LBE-B Bid – Spare MV Fuses

Equipment: 3-Section Medium Voltage Switchboard in Room C1



(3) SM-4 STD: 40E

Location: Library Building East

LBE – LIBRARY BUILDING EAST

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