To: Honorable Public Utilities Board Submitted by: From: Diosdado Hernandez, P. E. Approved by:

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1 AGENDA ITEM NO.: 4.F.1 ADMINISTRATIVE REPORT NO.: To: Honorable Public Utilities Board Submitted by: /S/ Andre Basler AGM Engineering and Operations From: Diosdado Hernandez, P. E. Approved by: /S/ Engineering Manager Nicolas Procos General Manager Subject: By Resolution, Requiring Four-Fifths Vote, Authorize the General Manager to Sole Source the Purchase of Protective Relays and Related Accessories from Schweitzer Engineering Laboratories c/o Matzinger-Keegan, Inc., in an Amount Not to Exceed $64,000 RECOMMENDATION By resolution, requiring four-fifths vote, authorize the General Manager to sole source by fourfifths vote the purchase of protective relays and related accessories from Schweitzer Engineering Laboratories c/o Matzinger-Keegan, Inc., in an amount not to exceed $64,000. BACKGROUND On July 4, 2017 Cartwright Substation breakers 3100, Navy Main A and H7 opened on a fault, creating a sustained outage on Alameda Point electric circuits. The outage cascaded to seven additional feeder breakers, ultimately affecting 5,783 customers in the West end of Alameda Island and entire Alameda Point area. Feeder relays/breakers are designed to clear feeder circuits during fault conditions. Main bus relays/breakers such as those on Circuits 3100 and 3200 serve as backup protection of feeder relays/breakers in case they fail to operate. Alameda Municipal Power (AMP) has different types of relays on its distribution system in this area. The electromechanical relays on H7 and Navy Main A are somewhere between years old, and are relatively slow-reacting in comparison to today s technology. Microprocessor relays, on the other hand, which Circuit Breaker 3100 has, recognize and react to faults on the system almost instantaneously. Electromechanical, solid state and microprocessor-based relays are used to monitor current, voltage, frequency and other electric power units. Their function is to sense abnormalities such as over-voltage, short circuits and equipment overloading and then to respond by directing a circuit breaker to interrupt or isolate the abnormality. Circuit breakers do not trip or open in the event of abnormal conditions, but rather they have to be told to do so by a protective relay. These devices also frequently need to be coordinated with other similar devices to properly protect an electric system from cascading into complete blackout conditions.

2 AGENDA ITEM NO.: 4.F.2 ADMINISTRATIVE REPORT NO.: Microprocessor-based relays have pretty much supplanted the use of earlier electromechanical and solid state relay devices in the electric power industry. DISCUSSION The After Action Report prepared by AMP found that the fault on July 4, 2017 was caused by the sudden failure of an underground cable splice in Manhole #8 in front of Building 91 at 651 W. Tower. The three breakers that opened at the outset of the event did so almost simultaneously. But breaker 3100, with the faster microprocessor relay, saw the fault first. The downstream breaker H7, which is closest to the fault, also saw it, but because of its advanced age and electromechanical design, was unable to react quickly enough to isolate the fault and keep it from reaching back to the main bus at breaker 3100 in Cartwright Substation. This, in turn, de-energized power to all of the feeder breakers on the main bus, including Alameda Point feeder circuits. Subsequent testing of the electromechanical relays by AMP technicians found that their mechanical moving parts were sticking due to age, wear, and exposure to the elements over many decades of service. The newer, faster, microprocessor-based relays have no mechanical parts and are less susceptible to degradation in performance capabilities over time. The table below summarizes the number of new microprocessor-based relays to be used as replacements of existing legacy relays. Substation Old Relay Type-Function Qty. New Relay Type-Function Qty. Cartwright GE Overcurrent Relays 8 SEL 751 Overcurrent relays, breaker failure timing, metering, event capturing and reporting 8 SEL 387 and 787 Transformer, Cartwright current differential and GE Transformer and Bus 4 overcurrent relays, breaker Differential Relays failure timing, metering, event capturing and reporting 4 Microprocessor-based protective relays are multifunctional devices. A single relay can be used for multiple protection functions such as transformer, current differential, overcurrent, reclosing, breaker failure timing, metering, load profiling, event capturing and reporting, and SCADA monitoring and control. Microprocessor-based relays are also low maintenance, requiring testing only once every ten years. Microprocessor relays are self-diagnostic and will send an alarm signal via SCADA when a failed component is detected. Furthermore, the use of the microprocessor relays will eliminate transducers, metering and associated wirings and devices. Sole Source Justification Staff recommends sole source purchasing of the SEL 751, SEL 387 and SEL 787 relays and accessories from Schweitzer Engineering Laboratories (SEL) for an amount not to exceed $64,000 including sales tax. The purchase from SEL will replace 12 electromechanical relays with new SEL microprocessor relays. Staff recommends sole sourcing with SEL for the following reasons:

3 AGENDA ITEM NO.: 4.F.3 MEETING DATE: 04/23/18 ADMINISTRATIVE REPORT NO.: To match existing equipment installed at Jenney and Cartwright Substations. AMP has a large investment in SEL products at these substations. Installing SEL relays at Cartwright Substation will provide an opportunity to use the existing relay application software, protection schemes, and commissioning test plans that we have already used at this substation and Jenney Substation. This will result in lower configuration, installation, commissioning and maintenance costs that would be the case with another manufacturer s product. To protect the training investment provided by SEL to AMP staff. During the past eight years, engineering staff and operations staff have attended comprehensive training programs related to the SEL products installed at AMP. To interface with AMP's existing SCADA systems. AMP has spent significant time and resources building an interface for Survalent, AMP's SCADA systems, largely based on SEL protection and automation hardware at Jenney and Cartwright Substations. Integrating another manufacturer's product into an existing SCADA system can be difficult, expensive, and in some cases, simply not possible. Using SEL relays will ensure compatibility for future connection to AMP s SCADA system using existing database and control panel templates. To provide higher reliability to the remaining switchgear relay breakers at Cartwright Substation. Each of the switchgear relays protects the entire circuitry at Alameda Point. Aside from the risks to personnel and equipment, when a relay fails, the associated circuitry protected by the relay has to be shut down until the relay can be replaced and retested. The proposed SEL products have a 10-year warranty and superior reliability characteristics to other comparable products. Engineering and Operations Division s experience with SEL is that in fact, they stand behind their products indefinitely. Most electric utilities have standardized their protection systems using only one manufacturer s product. These standardization procedures have been put in place by most utilities to ensure that safety, reliability, and power quality are maintained throughout the grid. FINANCIAL IMPACT The approved FY 2018 capital budget has sufficient funds for special purchases. LINKS TO KEY RESULTS AREA AND GOALS KRA 3: Goal 3.1 System Resiliency Maintain low customer outage frequency and duration EXHIBITS A. Resolution B. Quote from Matzinger-Keegan, Inc., on behalf of SEL Relay

4 CITY OF ALAMEDA ALAMEDA MUNICIPAL POWER RESOLUTION NO. BY FOUR-FIFTHS VOTE, AUTHORIZE THE GENERAL MANAGER TO SOLE SOURCE THE PURCHASE OF PROTECTIVE RELAYS AND RELATED ACCESSORIES FROM SCHWEITZER ENGINEERING LABORATORIES C/O MATZINGER-KEEGAN, INC. IN AN AMOUNT NOT TO EXCEED $64,000 WHEREAS, on July 4, 2017 Cartwright Substation breakers 3100, Navy Main A and H7 opened on a fault, creating a sustained outage on Alameda Point electric circuits; and the outage cascaded to seven additional feeder breakers, ultimately affecting 5,783 customers in the Alameda Point area; and WHEREAS, the fault was caused by the sudden failure of an underground cable splice in Manhole #8 in front of Building 91 at 651 W. Tower; and the downstream breaker117, which is closest to the fault, saw it, but because of its advanced age and electromechanical design, was unable to react quickly enough to isolate the fault and keep it from reaching back to the main bus at breaker3100 in Cartwright Substation. This, in turn, de-energized power to all of the feeder breakers on the main bus, including Alameda Point feeder circuits; and WHEREAS, AMP staffrecommends to purchase and use faster and newer microprocessor-based relays to replace the old and obsolete electromechanical relays; and WHEREAS, the sole source purchase from Schweitzer Engineering Laboratories is for consistency and compatibility with existing installed relays, device settings and configuration familiarity, i; and maintenance nurnoses: purposes; and WHEREAS, the approved FY 2018 capital budget has sufficient funds for special purchase of materials required for system resiliency. NOW,THEREFORE, BE IT RESOLVED that the Public Utilities Board of the Cityof Alameda, by four-fifths vote, authorizes the General Manager to sole source the purchase of protective relays and related accessories in an amount not-to-execed $64,000 including sales tax from Schweitzer Engineering Laboratories. Approved as to Form M. Cohen Assistant City Attorney AGENDA ITEM NO: 4.F EXHIBIT A- Page 1 of 1

5 AGENDA ITEM NO.: 4.F EXHIBIT B Thursday, March 22, 2018 TO: Alameda Municipal Power Tito Nagrampa FROM: Kelli Connell kelli@mkireps.com Phone: (949) SUBJECT: SEL Quote # USMKI , Rev. 1 Thank you for this inquiry. We are pleased to offer the following quotation: NO. DESCRIPTION UNIT PRICE QTY TOTAL PRICE 1 Part No A3ACA Key: 0146 SEL-751 with 2x16 LCD Display 2 Part No. C805D040SSX0040 Key: 7104 SEL- C µm Multimode Fiber-Optic Cable 3 Part No. C805D040SSX0030 Key: 7090 SEL- C µm Multimode Fiber-Optic Cable 4 Part No. 2812MTX0 Key: 2398 SEL-2812 Fiber- Optic Transceivers With IRIG-B (Popular Model) (Typically ships in 2 days) 5 Part No. 2812MRX0 Key: 2386 SEL-2812 Fiber- Optic Transceivers With IRIG-B (Popular Model) (Typically ships in 2 days) $3, $31, $ $ $ $3, $ $2, $ $1, TOTAL (USD) $38, All sales are subject to the attached SEL Sales Terms, which are also available on SEL's website ( and are incorporated herein by reference. All sales are expressly limited to the SEL Sales Terms and are expressly made conditional on Buyer's assent thereto. SEL expressly objects to any additional or different terms proposed by Buyer, unless expressly agreed to in writing by SEL. Please indicate end user of equipment if not already noted above. All orders with an end user in the United States must indicate if American Reinvestment & Recovery Act (ARRA) funds are being used. If so, the End User's ARRA Federal Contract Number must be provided. Each relay comes with one manual (CD or Printed). CD will be supplied as default unless you request a Printed Manual. Additional Paper Manuals are $32 each. Lead time: 20 business days ARO to ship Does not include shipping time Ships from Pullman, WA Terms: Net 30 with approved credit only; otherwise cash in advance F.O.B.: Destination Freight: Prepaid and included (standard ground shipping) within the Continental United States. Orders with multiple items may be shipped from multiple locations and may come in more than one delivery. Quote Validity 60 days Information contained within this quotation is for your evaluation purposes only. Disclosure of this information outside of your company is prohibited. Page 1 of 2

6 If ordered, please make orders out to: Schweitzer Engineering Laboratories, Inc. c/o Matzinger-Keegan Please direct all inquiries relating to this quotation to Kelli Connell. Thank you, Kelli Connell Phone: (949) Page 2 of 2