Isolated Phase Bus Recent Projects E to J | RMS Energy

Essex Generating Station

Owner: Public Service Electric and Gas Company

 

Project Summary: RMS Energy was hired to install new through-wall compartment at this power generation facility.

About the Client: The Essex Generating Station was a peaking power plant on the banks of the Passaic River, three miles east of Downtown in Newark, New Jersey. Owned by the Public Service Electric and Gas Company, it was designed and constructed in 1915–16 and by 1924 six generators had been installed, totaling 214,444 kva.

Four simple cycle combustion turbines totaling 617 MW. Three were brought on line in 1971, and another in 1990.They were later replaced.

Details:

  • Through-wall compartment installed

Ft. St. Vrain Generating Station

Owner: Xcel Energy

 

Project Summary: RMS Energy was hired to perform a variety of maintenance work at this power plant. See details below.

About the Client:  Fort Saint Vrain Generating Station is a natural gas powered electricity generating facility located near the town of Platteville in northern Colorado. It currently has a capacity of just under 1000MW and went online in this form in 1996. The facility was built originally as a nuclear power plant. It operated as a nuclear generating power plant from 1979 until 1989.

Detail:

  • Remove approximately 24 clam shell covers on bus system 

  • Inspect the following components: a. Insulators 

  • Contact surfaces at terminations 

  • Flex connectors and hardware 

  • Conductor e. Expansion Bellows/joints 

  • Hand clean all reachable components 

  • Re-install clam shell covers 

  • Perform DC hi-pot test 

Gibson Station

Owner: Duke Energy
Contracted through: CE Power Solutions


Project Summary: RMS Energy was brought in to remove and replace existing expansion joints on a project for Duke Energy. The client was experiencing issues with connections on the shunts, as they were arcing and overheating. In addition, gaskets on the slipcovers were leaking. The project focused on a full replacement of existing expansion joints after removal and replacement of hardware.

About the Client: Duke Energy is the largest electric power holding company in the United States, supplying and delivering energy to approximately 7.2 million U.S. customers.

Detail:
 

  • Removed slipcovers and bolted shunts, and replaced with a welded expansion.

  • Full replacement of existing expansion joints

Harrington Station

Owner: Xcel Energy
Contracted through: Xcel Energy


Project Summary: RMS Energy was contracted to conduct repair and replacement on the Neutral Box of the Harrington Generating Station in Amarillo, Texas. The project included removal of the neutral grounding bus and enclosure. Replacement of threads, gaskets, and clean and inspect CTs. Isolated Phase Bus (IPB) duct was successfully reinstalled, and the neutral grounding bus was reinstalled and welded.

About the Client: Xcel Energy Inc. is a utility holding company based in Minneapolis, Minnesota, serving more than 3.3 million electric customers and 1.8 million natural gas customers.

Detail:

  • Harrington Unit 2 Neutral Box Repair and replacement of CT studs

  • Remove neutral tie adapter

  • Remove neutral grounding bus from Generator to the Neutral Grounding Cabinet

  • Remove neutral enclosure

  • Remove inner and outer CT’s on A, B, & C Phase

  • Replace all thread and backer nuts

  • Replace gasket on neutral enclosure

  • Replace gasket between phenolic plate and neutral enclosure

  • Clean and inspect CT’s and insulators

  • Prep Isolated Phase Bus duct for re-installation

  • Re-install inner CT’s

  • Reinstall outer CT’s

  • Reinstall neutral

  • Reinstall removed sections of neutral grounding bus and weld-out

Hines Energy Center

Owner: Duke Energy

Project Summary: RMS Energy was hired to conduct a variety of maintenance and reinstallation of critical equipment at this power plant. See Details below.

About the Client: Located approximately an hour outside Orlando, in Polk County, Florida, the 1, 912-MW complex is home to four natural gas-fired, combined-cycle units. The first unit began commercial operation in 1999, and subsequent units began operation in 2003, 2005, and 2007.

Details

  • Remove termination enclosure access covers

  • Protect LV bushings with Sono tubes 

  • Remove flex braids, by plant 

  • Remove adapter bars, by plant 

  • Cut enclosures leaving 1” or more gap. Cut termination enclosures loose at shorting plates

  • Unbolt termination enclosures from transformer flange 

  • Install lifting eyes, Rig and remove termination enclosures and stage in work area 

  • Prep enclosures for re-installation and seal off opening with plastic

  • Prep termination enclosures for re-installation 

Hoover Dam

Project Summary: With safety as a priority, the RMS repair project at Hoover Dam generated excellent collaboration between RMS and Hoover personnel, which ensured outstanding efficiency with no worksite incidents occurring. The RMS team was hired to install circuit breakers on Units A1 and A2 at Hoover Dam.

 

About the Client: Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. It was constructed between 1931 and 1936 during the Great Depression and dedicated in 1935 by President Franklin D. Roosevelt. The original construction project was the result of a massive effort involving thousands of workers, and claimed more than a hundred lives.
 

Details:

  • Demolition of generator circuit breakers for two units 

  • Installation of new generator circuit breakers for two units 

  • Retrofitting of existing isolated phase bus to new generator circuit breakers   

Horse Mesa Dam

Owner: US Bureau of Reclamation

Project Summary: RMS Energy was hired to install a new isolated phase bus duct (IPBD) at the Horse Mesa Dam. The project included demolition of existing IPBD and the GCB cubicle, with installation of the new IPB and new GCB cubical, and installation of new disconnect switches. 

About the Client: The Horse Mesa Dam is a concrete thin arch dam located in the Superstition Mountains, northeast of Phoenix in Maricopa County, Arizona. The dam is 660 feet (200 m) long, 300 feet (91 m) high and was built between 1924-27. The dam includes three conventional hydroelectric generating units totaling 32 megawatts (MW) and a pumped-storage unit with a capacity of 97 MW. It is owned and operated by the U.S. Bureau of Reclamation.

Project Details:

Demolition of all existing IPB    
Demolition of GCB cubical    
Install all new IPB
Install new GCB cubical
Install new disconnect switches

Intercession City Power Plant

Project Summary: RMS Energy was hired to remove existing heaters and install new heaters with existing wires. RMS installed new control panel for heaters and install new covers with new bolting hardware. They removed, inspected and reconnected flexible connectors at each end of the non-seg bus run and conducted a hi-pot test.

Details

  • Remove existing non-seg bus duct covers

  • Scrape existing gasket material 

  • Remove existing heaters, and install new heaters with existing wires 

  • Install new control panel for heaters

  • Install new covers with new bolting hardware 

  • Remove, inspect and reconnect flexible connectors at each end of the non-seg bus run and hi-pot test 

JK Spruce

Owner: CPS Energy San Antonio, TX

Scope: Disconnect braids from main GSU transformer, Cut enclosure at main GSU transformer on all 3 phases and remove GSU transformer Dog house. Reinstall and Weld out GSU Dog Box, reinstall braids to GSU transformer (replace all hardware and isolation hardware.)

Project Summary: RMS Energy was hired to help CPS Energy to conduct a de-installation of the Doghouse, welding, and successful reinstallation of hardware on an Isolated Phase Bus (IPB) project. The RMS Energy team performed a variety of large tasks, including disconnection of the braids from the GSU transformer and removal of the transformer Doghouse. Welding on the GSU Dog Box and reinstallation of GSU transformer braids completed the project.

About the Client: CPS Energy of San Antonio is a community-owned, not-for-profit energy utility, and with their diversified mix of fuels, they are able to provide customers with reliable and more affordable energy services than many companies.

Detail:

Disconnected braids from main GSU transformer
Cut enclosure at main GSU transformer on all 3 phases
Removed GSU transformer Doghouse
Reinstalled and weld out of GSU Dog Box
Reinstalled braids to GSU transformer, replacing all hardware and isolation hardware

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Recent Projects (E to J)

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Email: Info@RMSEnergy.com

ADDRESS

 

RMS Energy Co., LLC
201 1st Street
Randall, MN 56475

 

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