North Davis 15KV Switchgear

Delivered Feb 2005


This equipment is part of a power system upgrade for plant expansion at the North Davis Sewer District in Syracuse, Utah. The project consists of 11 sections of NEMA 3R walk-in switchgear, Seismic Zone 4 rated.

In addition to the new 3R gear, the existing 480 volt switchgear received an on-site upgrade, which included new control doors with meters, switches, and lights. The existing gas engine control system was upgraded with new Woodward DSLC controllers and Allen-Bradley SLC 500 programmable logic controllers.

The completed system controls three existing Waukesha gas engines with a combined capacity of 1900 kW and one new Caterpillar 3516B generator set rated at 2,000 kW. The generator control sections contain Woodward DSLC engine controllers for synchronizing and loading the generators and a Woodward MSLC for utility paralleling and co-generation.

Control functionality includes emergency standby operations and utility co-generation with the diesel and gas engines.