Power Transformer Services, Inc.
Los Altos, CA 94022
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Our Story
Provides a full range of services and support for electrical substation and wind generation power plants. With more than 55 years experience, we have the right staff and expertise to provide the best service, maintenance and repair of any equipment in the field of power transformers.
Commercial Experience
Regions & Counties Serviced
- San Francisco, Oakland, San Jose
California 48
- Alameda
- Alpine
- Amador
- Butte
- Calaveras
- Colusa
- Contra Costa
- Del Norte
- El Dorado
- Fresno
- Glenn
- Humboldt
- Inyo
- Kings
- Lake
- Lassen
- Madera
- Marin
- Mariposa
- Mendocino
- Merced
- Modoc
- Mono
- Monterey
- Napa
- Nevada
- Placer
- Plumas
- Sacramento
- San Benito
- San Francisco
- San Joaquin
- San Mateo
- Santa Clara
- Santa Cruz
- Shasta
- Sierra
- Siskiyou
- Solano
- Sonoma
- Stanislaus
- Sutter
- Tehama
- Trinity
- Tulare
- Tuolumne
- Yolo
- Yuba
Our CSI Codes
02 31 26 - Electrical Resistivity Investigations
09 01 00 - Maintenance of Finishes
25 05 13 - Conductors and Cables for Integrated Automation
25 05 26 - Grounding and Bonding for Integrated Automation
25 05 28.33 - Conduits and Backboxes for Integrated Automation
25 05 28.36 - Cable Trays for Integrated Automation
25 10 00.00.01 - Integrated Automation Network Equipment
26 01 10 - Operation and Maintenance of Medium-Voltage Electrical Distribution
26 01 20 - Operation and Maintenance of Low-Voltage Electrical Distribution
26 01 26 - Maintenance Testing of Electrical Systems
26 05 13 - Medium-Voltage Cables
26 05 13.16 - Medium-Voltage, Single- and Multi-Conductor Cables
26 05 19 - Low-Voltage Electrical Power Conductors and Cables
26 05 19.13 - Undercarpet Electrical Power Cables
26 05 23 - Control-Voltage Electrical Power Cables
26 06 10 - Schedules for Medium-Voltage Electrical Distribution
26 06 20 - Schedules for Low-Voltage Electrical Distribution
26 06 20.13 - Electrical Switchboard Schedule
26 06 20.16 - Electrical Panelboard Schedule
26 06 20.19 - Electrical Motor-Control Center Schedule
26 06 20.23 - Electrical Circuit Schedule
26 06 20.26 - Wiring Device Schedule
26 06 40 - Schedules for Electrical and Cathodic Protection Systems
26 06 50.13 - Lighting Panelboard Schedule
26 09 13 - Electrical Power Monitoring and Control
26 10 00.00.01 - Medium-Voltage Electrical Distribution
26 18 13 - Medium-Voltage Cutouts
26 20 00.00.01 - Low-Voltage Electrical Distribution
26 21 00.00.01 - Low-Voltage Overhead Electrical Power Systems
26 43 13 - Transient-Voltage Suppression for Low-Voltage Electrical Power Circuits
27 05 26 - Grounding and Bonding for Communications Systems
27 05 28.33 - Conduits and Backboxes for Communications Systems
27 13 13 - Communications Copper Backbone Cabling
27 16 13 - Communications Custom Cable Assemblies
27 16 19 - Communications Patch Cords, Station Cords, and Cross Connect Wire
28 05 13 - Conductors and Cables for Electronic Safety and Security
28 05 13.13 - CCTV Communications Conductors and Cables
28 05 13.16 - Access Control Communications Conductors and Cables
28 05 13.19 - Intrusion Detection Communications Conductors and Cables
28 05 13.23 - Fire Alarm Communications Conductors and Cables
28 05 28.33 - Conduits and Backboxes for Electronic Safety and Security
28 05 28.36 - Cable Trays for Electronic Safety and Security
28 05 28.39 - Surface Raceways for Electronic Safety and Security
33 71 36 - Extra-High-Voltage Wiring
33 71 36.13 - Overhead Extra-High-Voltage Wiring
33 71 39 - High-Voltage Wiring
33 71 39.13 - Overhead High-Voltage Wiring
33 71 49 - Medium-Voltage Wiring
33 71 49.13 - Overhead Medium-Voltage Wiring
33 71 53 - Direct-Current Transmission
33 72 33.26 - Substation Metering
33 72 43 - Substation Control Wiring
33 79 23 - Utility Substation Grounding
33 81 23 - Aerial Cable Installation Hardware
33 82 46 - Cable Pressurization Equipment
34 21 16 - Traction Power Substations
34 21 16.13 - AC Traction Power Substations
34 21 16.16 - DC Traction Power Substations
34 23 23 - Overhead Traction Power Cables
34 42 16 - Train Control Wires and Cables
40 95 73 - Process Control Wiring
40 95 73.23 - Process Control Cable
48 70 00.00.01 - Electrical Power Generation Testing
48 71 16 - Electrical Power Generation Current Test Equipment
48 71 19 - Electrical Power Generation Power Test Equipment
48 71 23 - Electrical Power Generation Resistance Test Equipment
48 71 26 - Electrical Power Generation Voltage Test Equipment
