AGENDA INFORMATION SHEET
DEPARTMENT: Materials Management
ACM: Bryan Langley
AGENDA DATE: August 16, 2016
SUBJECT
Title
Consider adoption of an ordinance accepting competitive proposals and awarding a contract for Electric Utility Outdoor Metal Enclosed Switchgear for the City of Denton; providing for the expenditure of funds therefor; and providing an effective date (RFP 6170-awarded to Anixter Power Solutions in a three (3) year not-to-exceed amount of $550,000).
Body
RFP INFORMATION
This RFP is to provide new, completely assembled and tested, outdoor metal enclosed switchgear for substations. Outside Metal-Enclosed Switchgear (OMSWG) are installed within electrical substations to facilitate switching electric distribution circuits from a central location within a substation. The central substation location allows more than one substation transformer to be utilized to enhance circuit reliability for the Denton Municipal Electric's (DME) customers. The OMSWG substation switchgear consists of a weatherproof housing containing four separate cubicles that are bolted together. A common 1200Amp electrical copper bus runs through all four cubicles of the enclosure. Each cubicle has an individual distribution manually operated switch that can be used to either tie or isolate different substation switchgear building tiebreakers to the common 1200 Amp bus. Access to the interior of the enclosure is provided by separate doors into each cubicle.
In the case of a catastrophic substation power transformer failure due to an electrical fault or short-circuit, our customers have the potential of being out of electric power for an extended period of time until specific distribution switching arrangements can be determined to clear the faulted section of the circuit. In order to resolve and improve this outage contingency condition, the OMSWG will enable improved switching flexibility for DME. DME will be able to switch the circuits from a central location t...
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