Energy​/Power Generation Tester, Electrical Engineering

Tester 1

Date: Oct 3, 2025

Location: San Antonio, TX, 78205

Company: CPS Energy

We are engineers, high line workers, power plant managers, accountants, electricians, project coordinators, risk analysts, customer service operators, community representatives, safety and security specialists, communicators, human resources partners, information technology technicians and much, much more. We are 3,500 people committed to enhancing the lives of the communities we serve. Together, we are powering the growth and success of our community progress every day!

Final date to receive applications: 1/20/26 at 11:59pm

Pay Grade: 11 (
* Qualifications may warrant placement at a different job level*)

Tester 1 position maintain the integrity and reliability of the CPS Energy Generation, Transmission and Distribution System by maintaining and testing a variety of High & Low Voltage equipment. Tester 1 position works with and coordinates with many different departments to ensure all components of CPS Energy's power system remain safe and reliable. Tester 1 position is responsible for commissioning & maintaining EHV-HV-MV for services in accordance with IEEE, ANSI, and CPS Energy Specifications.

The equipment that is maintained and tested will vary from HV (High Voltage) and EHV (Extra High Voltage) Generation Step-up Transformers, EHV Auto Transformers, HV Power Transformers and various MV (Medium Voltage) Distribution Class Transformers, EHV-HV-MV SF6 Breakers, HV-MV Vacuum Breakers, MV Air-Magnetitic Breakers, EHV-HV-MV Potential & Current Transformers, HV-MV Underground Distribution Cable and Bus work, all equipment ranging in voltages from 13.8 kV-345 kV.

Tester 1 position also assume responsibility for various electronic equipment used for monitoring Substation DC power supply, equipment protection devices, Dissolved Gas Analysis monitoring and various field grad test equipment. This position is NERC sensitive and will have NERC mandated responsibilities under PRC-005. Tester 1 position are required to work a call-duty rotation to respond to abnormal equipment conditions and outage situations for 24-7 operational reliability.

• Tests, commissions, maintains, and troubleshoots for quality assurance using on-line & off-line diagnostic analysis of EHV, HV, and MV power equipment. The following test procedures are the basis of the Tester Day to day responsibilities.
• Insulation Power Factor Testing
• Excitation Current Testing
• Leakage Reactance Testing
• Sweep Frequency Response Analysis
• Transformer Turns-Ratio Testing
• Circuit Breaker First Trip Analysis
• Contact Resistance Testing
• Digital Circuit Breaker Timing
• Partial Discharge Testing
• Vibration Analysis
• Infrared Thermography
• Gas Chromatography (DGA)
• AC/DC-Hi-potential Testing
• Operates, commissions, and tests low and high voltage electrical equipment from 120V, 480V, 4160V, 13.8kV, 35kV, 138kV, and 345kV systems to include but not limited to circuit switchers, circuit breakers, motor operated disconnects and vacuum interrupters.
• Review and performs switching sequences on 480V, 4160V, 13.8 kV, 35 kV, 138 kV and 345 kV systems in substations and power generations environments utilizing LOTO procedures to safely isolate equipment.
• Provides field technical support to electricians, foreman, and other departments in the operation and functionality of substation equipment to include power, step-up and auto transformers, circuit breakers, instrument transformers, and DC power supply systems.
• Completes test reports and enters test results to keep records up to date and stay in compliance with reliability standards.
• Troubleshoots, repairs, and makes technical recommendations to electricians and area leadership of the operation and reliability of Substation & Power Generation equipment.
• Provides analysis of the operation of the CPS Energy electric system after major disturbance and provide recommendations regarding the proper operation of the electric system.
• Provides QA/QC of work of private contractors during substation and power plant construction to ensure that CPS Energy's standards are met.
• Coordinates between other departments to ensure that jobs are completed with the least amount of disruption to customers or the electric system and that jobs are completed in a safe and timely fashion.
• Perform 24-7 Call-Duty on a rotational basis to determine equipment condition during outages and to respond to abnormal system conditions.
• Working knowledge of Electromechanical/Micro-Processor controlled system protection relay schemes and how these schemes provide protection to CPS Energy assets.
• Work with PC based maintenance management systems, computer-based testing programs and equipment along with the use of laptops for infield inspections and maintenance.
• Designs and implements diagnostic and analysis testing techniques of substation assets and electronic equipment.
• Perform Federally Mandated (NERC) equipment inspections according to NERC PRC-005 standards.
• Perform State Mandated…