ID 602430
Archived
Orange County
Owner Reference: S-2021-1280
Bid Date: 10/26/2021 at 02:00pm
Pre-Bid: 10/05/2021
Audio Conference via Microsoft Teams Phone Number 1-213-279-1455 Conference ID No. 344 185 644# Invitation requests for the on-screen and audio Microsoft Teams meeting must be emailed to Darius Ghazi at dghazi@ocsan.gov on or before October 4, 2021. Please refer to meeting S-2021-1280. The meeting invitation will be emailed only to one requestor per company for their distribution.
This Project includes the following modifications for all three (3) Switchgears: i. 480V Switchgear Buses SWGR-HA-A and SWGR-HA-B ii. 480V Switchgear Buses SWGR-HB-A and SWGR-HB-B iii. 480V Switchgear Buses SWGR-HC-A and SWGR-HC-B - Replace existing undervoltage relays 28ITUV300 and 28ITUV301 (part of 480V SWGR-HA-A/B); 28ITUV310 and 28ITUV311 (part of 480V SWGR-HB-A/B); 28ITUB320 and 28ITUV321 (part of 480V SWGR-HC-A/B) with SEL751 Model with Inputs/Outputs and Serial Port configurations to match existing undervoltage relay functionality. OC San Standard SEL 751 inputs/outputs. configuration minimum requirements are provided for reference. Contractor shall verify required SEL751 configuration and provide one that matches the 480V Switchgear auto-transferring protection scheme functionality. - Existing undervoltage auto transferring/protection scheme is based on two (2) GE Multilin Relays MIV/MIV II as some of the undervoltage relays were replaced over time. Upgrades will keep the same undervoltage / auto transferring / protection scheme functionality but will base it on two (2) SEL751 Relays. - All existing alarms and indications to SCADA shall remain the same as prior to upgrades. iv. For all three (3) Switchgears existing test switches will remain the same. After the upgrade, validate protective relay functionality and Automatic Transfer on Loss of Line A and Line B Voltages (Dead Bus Transfer). Project duration is 180 calendar days. Questions are due no later than 2:00 PM on Oct 8th. Bonds required. Prevailing wages.
County of Orange Sanitation District (OCSD) or (OCSAN) CA
Darius Ghazi
(714) 593-7586
Login or create an account To view email
Published 09/27/2021 on Construction Bid Source
DISCLAIMER: Projects posted by Construction Bid Source contain information that is aggregated daily from multiple sources. It is the individual responsibility of our members to contact the owner directly for purposes of bidding on a project and gaining additional project information. Construction Bid Source does not assume any responsibility for omissions or errors.