PTEI has been involved with numerous large and small scale projects involving public and private sector utility industry including:
LOS ANGELES DEPARTMENT OF WATER AND POWER
Electrical Testing Services
Electrical testing services
are needed to complete projects associated with the Electric Power Research
Institute study recommendation for the Power Reliability Program (PRP) and the
Board of Water and Power Commissioners' objective to integrate renewable energy
resources in to the power system portfolio. PTEI is to provide Electrical
Testing Services for electrical facilities throughout the Department service
territory including current and future facilities outside the city limits of
Los Angeles
230kV Pine Tree Wind Farm Project.
PTEI was contracted to provide construction management support services in the areas of scheduling and cost control, administration, engineering and inspection services. The project consists of building 89 windmills in the Tehachapi Mountains, building about 30 miles of difficult and treacherous access roads, and 8 miles of 230Kv transmission line. PTEI uses Primavera for cost and schedule control. Provides services of factory and field inspection. Each windmill includes a wind turbine generator producing 1.2 MW of electricity.
Electrical Substation Retrofit and Automation.
Project/Construction Management & Engineering Services for the retrofit project of approximately 174 substations throughout Los Angeles County. PTEI is responsible for coordinating construction services provided by Los Angeles Department of Water and Power in-house force account or outside contractors. Work includes coordination, quality control, testing and start-up. The scope of work consists of replacing obsolete power equipment with state of the art.
Castaic Pump Storage Modernization and Automation Retrofit Project.
Castaic Power Plant is a hydro-electric pump storage generating facility. It was built in the 70's and most of the equipment has aged and become obsolete. LADWP embark in a program of refurbishing and retrofitting the hydro plant with state of the art and more efficient equipment, including turbine/generators and controls. PTEI provided Owner Representative Electrical Engineering services for the retrofit of the pump storage generating station to modernize the electrical, instrumentation and control systems. Castaic Pump Storage plant receives water from the California Aqueduct and generates electricity as well as store water by pumping water from Castaic Lake to upstream reservoirs (forebays) and generating in times of high energy rates. Power-Tech assisted LADWP in preparing bid documents and as-found drawings for engineering and construction contractors
Haynes Generating Station Repowering Project.
PTEI provided electrical construction management support, relay and lightning protection design services for the retrofit of the old steam power plant by the installation of combined cycle units. Performed short circuit analysis of the new combined cycle project and provided relay settings for the low, medium and high voltage relay protection coordination, including for the protection of the new generators and switchyard interconnecting breakers.
Valley Generating Station Repowering Project
PTEI provided engineering services for the automation design of the switchyard electrical systems and the integration of the new combined cycle units, as well as the gas peaker units into a centralized data acquisition system, communicating data to the LADWP Energy Control Center system. PTEI also provided equipment as well as test and start-up services. Equipment consisted on new automation cabinets, including data concentrators, PLCs, PCs and HMIs
SOUTHERN CALIFORNIA EDISON
TRTP 500kV Transmission Line Project.
Providing project scheduling services for PAR's EPC contract of the SCE's TRTP project. Project consist of a transmission line with three segments for a total of about 60 miles of 500KV single and double circuit.
SOUTHERN NEVADA WATER AUTHORITY
Electrical Retrofit Project
SNWA owns 5 large pumping stations taking water frrom Lake Mead to serve Las Vegas and neighboring cities and towns in southern Nevada. These pumping stations were built in the 50's and had become obsolete, hard to maintain and inefficent. SNWA embark in a project to refurbish these pumping plants and contracted Power-Tech to provide design services for this project. PTEI provided engineering services for the retrofit of the electrical and control/instrumentation system, medium and low voltage, for 5 large existing pumping stations and emergency generation of the water treatment facility. Each pumping station consisted of about 12 large pumps (1500hp) driven by 4.16kV synchronous motors. A mezzanine level was designed and built to accomodate the new electrical equipment (Switchgears and MCC's). The project also included the automation of the pump by installing dedicated PLC's to each individual pump as well as a master PLC for the entire plant, with an HMI system. The new system was placed in service without major plant operational disruptions or forced outages.
METROPOLITAN WATER DISTRICT
Cross Connection Project
PTEI was assigned as a prime contractor, the Construction Management and Inspection Services for the relocation of vacuum release and check valves from about 90 differente sites throughout the Los Angeles and Orange County. The work consisted in relocating and replacing new valves from existing vaults to above ground locations to avoid potential contamination of treated water in trunk lines with non-treated water such as sewage, storm water, etc. The project required the installation of new carbon steel, water piping with mortar lining and coating at different sites. MWD identified 1500 potential sites with this problem and prioritize 350 sites for inmediate construction or relocation of the vacuum protection system
RENTECH INC
Rialto Biomass Co-Generation Project.
Conceptual electrical engineering for the development of a co-generation plant, steam and gasified e-fuel (biomass fuel). Responsible for utility interconnection as well as plant CEC/PUC permitting process.
IMPERIAL IRRIGATION DISTRICT
OATT Engineering Services
Perform system planning studies, with the overall objective
to determine the transmission facility upgrades and additions needed in IID
facilities and external system to accommodate the proposed projects under IID's
OATT. Such identified facilities will include (1) Direct Assignment
upgrades; (2) reliability upgrades; and (3) delivery upgrades that would be required
to deliver power from the projects to a designated delivery point while
maintaining reliability of the transmission network, based on NERC/WECC
reliability criteria (including Voltage Stability Criteria), IID's reliability
and NERC's planning standards for various reasonably-expected operating
scenarios
Work Order No. 1 : System Impact Study-CA Ethanol & Power, LL
Work Order No. 2 : Feasibility Study- Colgreen Energy (Re-Study
Work Order No. 3 : System Impact Study- Edison Mission Engergy PV-44
OATT Facility Studies.
Provide design review, perform necessary technical studies, and provide reports and recommendations for the design and construction by assisting the System Planning and Engineering sections exclusively to OATT Facility Studies for the Imperial Irrigation District, Energy Department.
Niland Switchyard & Substation Project.
PTEI Engineers were subcontracted to provide commissioning services, including test engineers, test procedures, and test reports for the complete electrical acceptance test of the Niland Switchyard. The proposed tests were in accordance with NETA standards. PTEI provided a complete set of test procedures and test results.
CITY OF BANNING
Sunset Substation and Distribution Project
Overseeing and Managing the construction and commissioning services of a 69kV substation, including overhead and underground 69kV and 12kV sub-transmission and distribution lines throughout the city of Banning. Construction work involves large civil infrastructure of a new substation as well as several miles of underground ductbanks and overhead lines.
PORT OF LONG BEACH
Cold Iron Project
Construction Management electrical services for the installation of a new substation and electrical system to provide utility power to docked oil ships, avoiding the use of their on board diesel engines for environment protection. Project consisted on underground medium voltage system, power transformers, switchgears, etc.
COLORADO RIVER COMMISSION
230kV Newport Transmission Lines
Conceptual engineering for the design of a two new transmission lines connecting the 230kV Mead Substation to a new 230kV Substation (Newport) serving new pumping station of the Southern Nevada Water Authority
Mead Substation Short Circuit Mitigation Study
Design a shunt reactor solution to decrease the short circuit duty of the electrical equipment at the Mead Subsation. Due to the large addition of new generation in the area the fault duty at Mead Substation exceeded the equipment rating. PTEI prepared system study and engineered the reconfiguration of the Mead substation with a split bus modification using a reactor to decrease the fault duty
Induced Voltage Analysis on Underground Water Pipelines
Perfomed EMTP analysis to determine the magnitude of induced voltage on pipe rebars of adjacent underground water lines to 69kV and 230kV transmission lines.
Insulation Coordination Analysis
Performed EMTP analysis to determine the appropriate insulation coordiantion requirement for the installation of new 69kV and 230kV systems
Harmonic System Analysis
Analyze the effect of harmonics generated by steel furnace inverters on neighboring 230kV system. Performed harnonic analysis on neighboring pumping station motors.
ULTRAMAR REFINERY
Reactive Power Analysis
Performed plant auxiliary electrical system voltage regulation analysis due to faults or disturbances in the electrical utility system. Prepare plant electrical system model for transient stability analysis due to utility system faults. Provided recommendation to protect the equipment during the voltage swings produced during fault events.
NORTHROP-GRUMMANAEROSPACE FACILITIES
Power System Analysis
Prepare power system model for the short circuit protection coordination analysis. Prepare motor starting analysis for the wind tunnel motor operation. Study included main facility at Hawthorne and El Segundo, California
Substation Design
Prepare construction drawings and specifications for the replacement of various 4.16kV secondary substations as well as the main substation.
LOS ANGELES COUNTY - ISD
Central Heat Power Plant-Arc Flash Analysis Study.
Prepare a system model of the plant electrical system, including the existing co-generators, for short circuit and arc flash analysis. Prepare arc flash label and provide recommendations for electrical system improvements.
Downey Data Center.
Conceptual design of the new electrical emergency system for the building electrical system to protect computer load on loss of power, due to internal or external power failures.
All County Buildings.
Preliminary engineering design for the emergency electrical system of all LA County facilities, including hospitals, jails, police, etc. facilities.
PACIFICTEL AM-FM/GIS for the Pacific Telephone Company.
Designed an AM-FM/GIS system for operations and commercial use, including the cadastral code, application to integrate with the ERP corporative system. Framme, GeoMedia, MicroStation and Oracle based system; ODL, MDL, ASP programming.
Cadastral Geographic Information System for the City of Guayaquil.
Designed a land based geographical information system for cadastral purposes, including an application for terrestrial photographs and aerial photos. MGE and Oracle based system.
Cadastral Information System for the County of Santa Elena.
Designed a land based geographical information system for cadastral purposes, including an application for city taxes, urban planning and urban control. MicroStation Geographic and Oracle based system.