09-23-2019 BPU RPT 12 - Laserfiche WebLink

Home

W A T E R E N E R G Y T I F F id& P U B L I C U T I L I T I E S BOARD OF PUBLIC UTILITIES RIVERSIDE PUBLIC UTILITIES Board Memorandum DATE: SEPTEMBER 23, 2019 ITEM NO: 12 SUBJECT: BID NO. SUB -836 FOR FURNISHING TWENTY-FOUR SUBSTATION CIRCUIT BREAKERS FROM V&S SCHULER ENGINEERING, INC. IN THE AMOUNT OF $2,170,143 AND WORK ORDER NO. 1906356 FOR AN INITIAL CAPITAL EXPENDITURE OF $3,500,000 ISSUES: Award Bid No. SUB -836 for furnishing 24 substation power circuit breakers to V&S Schuler Engineering Inc., of Canton, Ohio, in the amount of $2,170,143; and approve Work Order No. 1906356 for an initial capital expenditure amount of $3,500,000. RECOMMENDATIONS: That the Board of Public Utilities: Award Bid No. SUB -836 for furnishing 24 substation power circuit breakers to V&S Schuler Engineering, Inc., of Canton, Ohio, in the amount of $2,170,143; and 2. Approve Work Order No. 1906356 for an initial capital expenditure of $3,500,000 for the Multi - Substation 69kV Circuit Breaker Replacement Project. BACKGROUND: Electrical substations are facilities where high voltage from transmission lines are harnessed for general distribution to customers. Substations house a variety of structures and equipment to accomplish their purpose. One type of equipment is 69kV power circuit breakers (breakers). Breakers are one of the most fundamental and critical components in substations. This type of equipment protects the power grid from electrical faults and provides means of isolating other sections within the station for maintenance, switching, or construction. The average service life of breakers is between 30-40 years. The age of the breaker is a significant factor to interrupt high levels of current during electrical faults. Improper performance of this equipment ultimately compromises the reliability, safety, and maintenance of a substation. In 2017, Riverside Public Utilities (RPU) Engineering staff developed a breaker replacement program that identifies and replaces circuit breakers that are beyond their service lives, or contain problematic or unavailable parts, and therefore, can no longer be cost-effectively maintained. The objective of the program is to minimize the probability of in-service failures of circuit breakers by initiating projects that proactively replace circuit breakers that represent the highest risk to the reliability of RPU's electrical system and safety of the public and RPU's employees. Engineering staff has identified a total of 24