Home
Clerk
>
Board and Commissions Administration
>
Boards and Commissions-Agendas-Reports-Minutes
>
Board of Public Utilities
>
Reports
>
2018 BPU
>
04-09-18
>
04-09-2018 BPU RPT 10
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/1/2019 4:30:15 PM
Creation date
8/1/2019 8:48:11 AM
Metadata
Fields
Template:
General
Document Relationships
04-09-2018 BPU AGENDA
(Superseded by)
Path:
\Board and Commissions Administration\Boards and Commissions-Agendas-Reports-Minutes\Board of Public Utilities\Agendas\2018 BPU
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
13
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
Show annotations
View images
RIVERSIDE PUBLIC UTILITIES <br /> Board Memorandum <br />BOARD OF PUBLIC UTILITIESDATE: APRIL 9, 2018 <br />ITEM NO: 10 <br />SUBJECT:4kV TO 12kV CONVERSION PROGRAM STATUS REPORT <br />ISSUE: <br />Receive and file thisstatus report on the 4kV to 12kV Conversion Program. <br />RECOMMENDATION: <br />That the Board of Public Utilities receive and file the status report on the 4kV to 12kV Conversion Program, <br />upgrading aging 4kV distribution facilities to a modern 12kV distribution system. <br />BACKGROUND: <br />The energy delivery system in Riverside was originally designed arounda 33kV sub-transmission and 4kV <br />distribution system. Over the years, this standard was revised to a modern 69kV sub-transmission and <br />12kV distribution system. Riverside Public Utilities (RPU) has gradually migrated to the new voltage <br />standard of 69kV and 12kV over time. These voltage conversion projects are considered routine capital <br />projects and discussion of these were included in the presentation made to the Board at the September <br />25, 2017 meeting. <br />The Electric SystemMaster Plan recommends the conversion of all aging 4kV distribution facilities to a <br />modern 12kV distribution system to improve circuit reliability, safety, and outage restoration time. 4kV <br />distribution facilitiesare made up of components that are obsolete, inefficient, and difficult to procure- <br />especially during equipment failures and unexpected outages. The average age of these facilities is 50 <br />years old, and the equipment isat or beyond its useful life. A typical voltage conversion project includes <br />the replacement of all the facilities that make up the distribution systemincludingdeteriorated wooden <br />poles, transformers, pole switches, cables and relatedelectrical distribution components. <br />DISCUSSION: <br />The purpose of the 4kV to 12kV Conversion Program is to upgrade existing 4kV aging facilities to a 12kV <br />distribution system, which will include the implementation of advanced technology to monitor circuit loads <br />and their impact on the distribution grid. Upgrading to a modern, standardized 12kV circuit will result in <br />greater power capacity, reducedline losses, improved electric service and power quality, and improved <br />system operations using standardizedequipment. <br />This modernizationeffort will help keep up with technology advancements and the increased demand for <br />electricity. 12kV distribution circuits have approximately three times as much power capacity as 4kV <br />circuits. 12kV circuits improve overall system efficiency when compared to 4kV circuits. 12kV circuitsalso <br />increasevoltage stability, which is an important component for photovoltaic installations and large industrial <br />Page 148 <br />
The URL can be used to link to this page
Your browser does not support the video tag.