Electrical and Instrumentation Technician

Company Overview

UNS Energy Corporation, headquartered in Tucson, Arizona, is a subsidiary of Fortis Inc., the largest investor‑owned electric and gas distribution utility in Canada. UNS Energy’s public utility subsidiaries – Tucson Electric Power, UNS Electric, Inc. and UNS Gas, Inc. – serve nearly 700,000 customers in Arizona, providing safe, reliable electric and gas service while building a cleaner, greener grid.

Electrical and Instrumentation Technician

Posted:
September 8, 2025 | Expires:
September 22, 2025

Responsible for installing, testing, calibrating, troubleshooting, maintaining, and repairing plant electrical, instrument, and control systems at the highest level of skill. Performs duties in accordance with plant procedures, safety regulations, and company policies. Provides technical support for both lower‑level and larger‑scale projects and may also perform duties of lower classifications as required.

• Basic electrical and electronic terminology
• Electrical and electronic components
• Electrical diagrams and symbols
• AC and DC circuit fundamentals
• Basic mathematics and algebra
• I&C terminology, diagrams, and symbols
• General and I&C‑specific safety procedures
• Use of I&C test equipment
• Piping and tubing material selection
• Valve and actuator operation
• Pressure, temperature, level, and flow measurement equipment
• Simple microprocessor applications and logic
• Motor and motor control circuits
• Basic electrical theory
• UPS inverter wiring protocols
• Basic DCS control (Ovation)
• Basic PLC control
• Basic logic circuits
• Electrical test equipment
• Electrical maintenance procedures (motors, switch gear, battery P.M.)
• Motor construction and repair mechanics
• Reading electrical schematics and prints

• Identify leads and connect wye wound motors (High‑Voltage 480 V and Low‑Voltage 220 V)
• Disassemble motors for inspection and repair; use Megger to determine winding condition
• Install new bearings on test motor, perform correct heating techniques and verify end‑bell fits
• Demonstrate print‑reading ability
• Examine and evaluate resistors, relays, and semiconductors
• Troubleshoot start/stop circuits
• Identify 480 VAC molded‑case breaker components
• Connect and calibrate an electronic pressure transmitter; monitor output with VOM and recorder
• Connect and calibrate an electric‑to‑pneumatic signal converter
• Calibrate and adjust a valve positioner and verify operation on a control valve

The interview focuses on core competencies and uses a behavioral‑based approach to assess how past behavior predicts future performance. Questions address teamwork, problem‑solving, communication, safety awareness, and initiative.

• Successfully qualified as an Instrument & Control Repairman II or equivalent training with at least four (4) years of instrumentation technician experience
• Preferred Ovation background
• Electrical maintenance experience
• Extensive experience with DCS and PLCs
• Willingness to work overtime
• Ability to read prints and equipment manuals
• Basic math calculations
• Basic computer skills – data entry and retrieval
• Working knowledge of craft tools
• Valid driver’s license
• Physical ability to bend, lift, and stoop for extended periods
• Ability to climb stairs and work from ladders or elevated platforms
• Ability to work harmoniously with others
• Knowledge of plant processes
• Strong verbal and written communication skills

• Completion of an Electrical or Instrumentation Apprenticeship program
• Medium‑voltage electrical maintenance experience
• HART communication experience
• Relay experience

Install, test, calibrate, tune, maintain, repair, and modify all plant electrical, instrument, and control systems to the highest level of skill in accordance with training, plant procedures, and direction. Perform other duties as directed, including those of lower classifications.

• Understand and follow company policies and procedures
• Understand and follow Federal and State safety regulations
• Understand theory, operation, and troubleshooting of plant electrical and instrumentation equipment
• Read, understand, and interpret…