A.02.05 Brand Name JA for SEL Bus Relays.1_Redacted.pdf

Control No: 22-0037

SINGLE SOURCE DETERMINATION (including brand name)

l. CONTRACTING AGENCY: U.S. Almy Corps of Engineers (USACE), Walla Walla Distiict (CENWW-C1), 201 No1th 3rd Avenue, Walla Walla, WA 99362

2. DESCRIPTION OF ACTION: The Little Goose DC and LV Switchgear Upgrades requirement will upgrade the direct current systems and low voltage switchgear at Little Goose Dam in Washington State. The project includes the design and installation of a new bus protection relay system as part of an upgrade to the powerhouse station service switchgear, providing additional capability and reliability to the system. Each bus protection relay system monitors and conti·ols the protection features on the 480V (secondary) side of the station se1vice transfo1mers. The relays are the first line of defense for preventing arc flash incidences, equipment damage, and personnel injuries in case of an electi·ical fault. A new brand name bus protection relay system must be provided. Alongside the new relay system, wiring must interconnect between the bus protection relays and external field wiling through the use of te1minal blocks. Projects with similar scopes of replacing the station se1vice switchgear are also being perfo1med or planned at Lower Granite Dam and Lower Monumental Dam under different conti·acts.

Brand name components comp1ise only a po1tion of the acquisition. Accordingly, this justification and approval is limited to this component only. The estilnated purchase pdce for the specified brand name equipment is 111111

3. DESCRIPTION OF SUPPLIES/SERVICE:

As part of the procurement of the DC and L V switchgear upgrades, a new brand name bus protection relay system must be utilized. This is a justification for a brand name component that will be purchased by the contractor who receives the constrnction conti·act. The portion of the acquisition requiring brand name products applies to the bus protection relay system. Schweitzer Engineering Laborat01ies (SEL) Feeder Protection System includes the SEL-751 product sedes shown in the following table, which will be used in this contract. Use of this product in the acquisition is essential to the Government's requirements, thereby precluding consideration of products manufactured by another company as it would not meet the Government's requirements.

Product Description

751001A3A2A7085BG30 SEL-751 Bus Protection relays with chassis and 1/0 modules

Qty

8 sets

Contract awai·d is scheduled for October 2022.

4. AUTHORITY CITED: FAR 13.106-l(b), Soliciting from a single source

(1) For purchases not exceeding the simplified acquisition threshold, conti·acting officers may solicit from one source if the contracting officer dete1mines that the circumstances of the conti·act action deem only one source reasonably available (e.g. urgency, exclusive licensing agreements, brand name or industiial mobilization).

5. REASON FOR AUTHORITY CITED:

a. BACKGROUND: At Little Goose, feeder protection relays are a crucial part in protecting all of station service’s electrical and electromechanical equipment, including but not limited to conductors, low voltage switchgear, motors, and panelboards from electrical faults/overcurrent events. Electrical faults are known for causing severe damage to equipment and injury to project personnel. Digital feeder protection relays mitigate these risks by providing programmable trip settings for line, line-to-line, and ground fault conditions.

SEL relays include advanced features that improve equipment protection and project personnel safety including high impedance fault protection, arc flash mitigation and the ability to easily connect to Little Goose’ s existing annunciation and alarm system.

Additionally, Little Goose currently uses SEL relays for most of their electrical equipment, including the main hydro units, medium voltage motors/pumps, and some of their station service feeders. All SEL relays utilize the same programming software (AcSELerator) and function in a similar manner. Because Little Goose has experience with SEL relays and their associated software, they would like to maintain brand uniformity across the facility to limit costs for spare parts and time to train project personnel.

b. JUSTIFICATION: The Schweitzer Engineering Laboratories Feeder Protection System SEL-751 is an integral part of the DC and LV Switchgear Upgrades requirement and is specified to meet compatibility and supportability requirements. Integration of the bus protection is critical to the timely completion of the system upgrades. Other manufacturer’s products are not fully compatible with the current systems at Little Goose Dam and introduce negative risks to the switchgears systems’ operation if these components are not completely compatible. Additionally, if installed and found to be insufficient, adequate time to re-procure compatible protection relays would not allow sufficient time to complete the work before the end of the outage. Use of the Schweitzer Engineering Laboratories brand bus protection relay will also result in simplifying the training requirements for Government personnel, reduction of spare parts inventory required for system maintenance, and will allow parts to be exchanged between systems.

c. IMPACT: Substitution for the specified products would:

i. Increase the initial and recurring costs of relay software

ii. Increase the initial and recurring costs of spare parts inventory

iii. Increase labor time, travel, and expense to train District personnel who will support the system

iv. Decrease compatibility with existing systems and thus decrease the amount of information that can be conveyed throughout the system

v. Increase the complexity of the facility and thus decrease maintainability and reliability

vi. Decrease the digital feeder programming/ electrical equipment protection features

Implementation of a different brand of feeder protection relays will require the project personnel and design engineers to acquire the training and equipment necessary to design and maintain that system. Personnel will not be able to utilize existing knowledge of relay capabilities and programming software. Personnel will be required to learn the intricacies of another digital relay system, increasing the complexity and duration of alterations or repairs.

Additional maintenance agreements may also be required. Cost and labor time for personnel to attend training would greatly increase.

In addition, a different digital relay brand would not be able to provide the same advanced programming features that the SEL 751 has to offer. The absence of these programming features would increase the risk for damaging equipment and injming project personnel near associated electrical equipment. If a different digital relay is and additional equipment is provided to make up for the absent advanced programming features, the system cost and complexity would greatly increase.

d. ALTERNATIVES: None.

6. EFFORTS TO OBTAIN COMPETITION: There are multiple suppliers of the SEL bus protection relays. This J&A shall be posted with the solicitation. Requiring this brand name is unlikely to limit competition among proposals. It will be possible for a contractor to obtain competitive pricing from multiple sources. The cost of the SEL relays is small in comparison to the total estimated cost of constrnction.

7. FAIR AND REASONABLE COST DETERMINATION: Based on catalog pricing, the anticipated cost of $XXXX for the SEL bus protection relays described above is fair and reasonable.

8. MARKET RESEARCH: Under the authority cited in FAR 13.106-l(b), I have determined that the pruticular brand name, or feature is essential to the Government's requirements and mru·ket reseru·ch indicates that other companies' similru· products, or products lacking the particulru· feature, do not meet or cannot be modified to meet the agency's needs. SEL is the only compatible bus protection relay at this time. There are many sources a contractor can utilize to obtain the SEL bus protection relay.

9. INTERESTED SOURCES: None.

10. OTHER FACTS: None.

11. TECHNICAL CERTIFICATION: I certify that the supporting data under my cognizance, which is included in this Brand Name Justification and Approval, ru·e accurate and complete to the best of my knowledge and belief.

Sebastian Scheiff Electrical Engineer

S(HEIFF.SEBASTI Digltailyslgnedby

SCHEI FF SEBASTIAN.1590405171

Signature: AN.1590405171 0a,.,2022.os.111s:03:02-01'00'

12. REQUIREMENTS CERTIFICATION: I certify that the supporting data under my cognizance, which is included in this Brand Name Justification and Approval, ru·e accurate and complete to the best of my knowledge and belief.

Kru·en Robison Project Manager

ROBISON.KAREN Digitally�gnedby

ROBISON.KAREN.K.1239595045

.K.1239595045 Date: 2022.0S.1808:26:14--07'00' Signature: ___________ _

13. FAIR AND REASONABLE PRICE DETERMINATION: I hereby determine that the anticipated cost to the Government for this contr·act action will be fair and reasonable on the basis