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Date: 01/21/2026

Electrical and Electronics Repairers, Powerhouse, Substation, and Relay

Inspect, test, repair, or maintain electrical equipment in generating stations, substations, and in-service relays.

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    Work Activities

    Work Activities

    • Disconnect voltage regulators, bolts, and screws, and connect replacement regulators to high-voltage lines.
    • Notify facility personnel of equipment shutdowns.
    • Schedule and supervise the construction and testing of special devices and the implementation of unique monitoring or control systems.
    • Inspect and test equipment and circuits to identify malfunctions or defects, using wiring diagrams and testing devices such as ohmmeters, voltmeters, or ammeters.
    • Consult manuals, schematics, wiring diagrams, and engineering personnel to troubleshoot and solve equipment problems and to determine optimum equipment functioning.
    • Repair, replace, and clean equipment and components such as circuit breakers, brushes, and commutators.
    • Analyze test data to diagnose malfunctions, to determine performance characteristics of systems, or to evaluate effects of system modifications.
    • Inspect and test equipment and circuits to identify malfunctions or defects, using wiring diagrams and testing devices such as ohmmeters, voltmeters, or ammeters.
    • Open and close switches to isolate defective relays, performing adjustments or repairs.
    • Schedule and supervise splicing or termination of cables in color-code order.
    • Maintain inventories of spare parts for all equipment, requisitioning parts as necessary.
    • Prepare and maintain records detailing tests, repairs, and maintenance.
    • Maintain inventories of spare parts for all equipment, requisitioning parts as necessary.
    • Run signal quality and connectivity tests for individual cables, and record results.
    • Schedule and supervise the construction and testing of special devices and the implementation of unique monitoring or control systems.
    • Open and close switches to isolate defective relays, performing adjustments or repairs.
    • Schedule and supervise splicing or termination of cables in color-code order.
    • Construct, test, maintain, and repair substation relay and control systems.
    • Run signal quality and connectivity tests for individual cables, and record results.
    • Prepare and maintain records detailing tests, repairs, and maintenance.
    • Repair, replace, and clean equipment and components such as circuit breakers, brushes, and commutators.
    • Construct, test, maintain, and repair substation relay and control systems.
    • Test insulators and bushings of equipment by inducing voltage across insulation, testing current, and calculating insulation loss.
    • Test oil in circuit breakers and transformers for dielectric strength, refilling oil periodically.

    Skills

    • Operation and Control

      Using equipment or systems.

    • Repairing

      Repairing machines or systems using the right tools.

    • Installation

      Installing equipment, machines, wiring, or computer programs.

    • Time Management

      Managing your time and the time of other people.

    • Active Learning

      Figuring out how to use new ideas or things.

    • Critical Thinking

      Thinking about the pros and cons of different ways to solve a problem.

    • Social Perceptiveness

      Understanding people's reactions.

    • Monitoring

      Keeping track of how well people and/or groups are doing in order to make improvements.

    • Complex Problem Solving

      Noticing a problem and figuring out the best way to solve it.

    • Negotiation

      Bringing people together to solve differences.

    • Writing

      Writing things for co-workers or customers.

    • Equipment Maintenance

      Planning and doing the basic maintenance on equipment.

    • Judgment and Decision Making

      Thinking about the pros and cons of different options and picking the best one.

    • Systems Analysis

      Figuring out how a system should work and how changes in the future will affect it.

    • Technology Design

      Making equipment and technology useful for customers.

    • Systems Evaluation

      Measuring how well a system is working and how to improve it.

    • Management of Material Resources

      Managing equipment and materials.

    • Reading Comprehension

      Reading work-related information.

    • Learning Strategies

      Using the best training or teaching strategies for learning new things.

    • Management of Personnel Resources

      Selecting and managing the best workers for a job.

    • Instructing

      Teaching people how to do something.

    • Management of Financial Resources

      Making spending decisions and keeping track of what is spent.

    • Speaking

      Talking to others.

    • Equipment Selection

      Deciding what kind of tools and equipment are needed to do a job.

    • Operations Analysis

      Figuring out what a product or service needs to be able to do.

    • Service Orientation

      Looking for ways to help people.

    • Active Listening

      Listening to others, not interrupting, and asking good questions.

    • Science

      Using scientific rules and strategies to solve problems.

    • Persuasion

      Talking people into changing their minds or their behavior.

    • Mathematics

      Using math to solve problems.

    • Coordination

      Changing what is done based on other people's actions.

    • Programming

      Writing computer programs.

    • Operations Monitoring

      Watching gauges, dials, or display screens to make sure a machine is working.

    • Troubleshooting

      Figuring out what is causing equipment, machines, wiring, or computer programs to not work.

    • Quality Control Analysis

      Testing how well a product or service works.

    WorkKeys®

    Applied Math
    4
    Workplace Documents
    4
    Graphic Literacy
    4

    Abilities

    • Category Flexibility

      Grouping things in different ways.

    • Rate Control

      Changing when and how fast you move based on how something else is moving.

    • Oral Comprehension

      Listening and understanding what people say.

    • Static Strength

      Lifting, pushing, pulling, or carrying.

    • Fluency of Ideas

      Coming up with lots of ideas.

    • Sound Localization

      Noticing the direction that a sound came from.

    • Speech Recognition

      Recognizing spoken words.

    • Speech Clarity

      Speaking clearly.

    • Depth Perception

      Deciding which thing is closer or farther away from you, or deciding how far away it is from you.

    • Dynamic Strength

      Exercising for a long time without your muscles getting tired.

    • Far Vision

      Seeing details that are far away.

    • Problem Sensitivity

      Noticing when problems happen.

    • Dynamic Flexibility

      Quickly and repeatedly bending, stretching, twisting, or reaching out with your body, arms, and/or legs.

    • Written Comprehension

      Reading and understanding what is written.

    • Near Vision

      Seeing details up close.

    • Finger Dexterity

      Putting together small parts with your fingers.

    • Perceptual Speed

      Quickly comparing groups of letters, numbers, pictures, or other things.

    • Control Precision

      Quickly changing the controls of a machine, car, truck or boat.

    • Auditory Attention

      Paying attention to one sound while there are other distracting sounds.

    • Wrist-Finger Speed

      Making fast, simple, repeated movements of your fingers, hands, and wrists.

    • Speed of Limb Movement

      Quickly moving your arms and legs.

    • Written Expression

      Communicating by writing.

    • Hearing Sensitivity

      Telling the difference between sounds.

    • Glare Sensitivity

      Seeing something even if there is a glare or very bright light.

    • Inductive Reasoning

      Making general rules or coming up with answers from lots of detailed information.

    • Arm-Hand Steadiness

      Keeping your arm or hand steady.

    • Number Facility

      Adding, subtracting, multiplying, or dividing.

    • Flexibility of Closure

      Seeing hidden patterns.

    • Reaction Time

      Quickly moving your hand, finger, or foot based on a sound, light, picture or other command.

    • Extent Flexibility

      Bending, stretching, twisting, or reaching with your body, arms, and/or legs.

    • Night Vision

      Seeing at night or under low light.

    • Deductive Reasoning

      Using rules to solve problems.

    • Gross Body Equilibrium

      Keeping your balance or staying upright.

    • Explosive Strength

      Jumping, sprinting, or throwing something.

    • Originality

      Creating new and original ideas.

    • Visualization

      Imagining how something will look after it is moved around or changed.

    • Response Orientation

      Quickly deciding if you should move your hand, foot, or other body part.

    • Multilimb Coordination

      Using your arms and/or legs together while sitting, standing, or lying down.

    • Gross Body Coordination

      Moving your arms, legs, and mid-section together while your whole body is moving.

    • Oral Expression

      Communicating by speaking.

    • Speed of Closure

      Quickly knowing what you are looking at.

    • Manual Dexterity

      Holding or moving items with your hands.

    • Trunk Strength

      Using your lower back and stomach.

    • Visual Color Discrimination

      Noticing the difference between colors, including shades and brightness.

    • Stamina

      Exercising for a long time without getting out of breath.

    • Peripheral Vision

      Seeing something to your side when your are looking ahead.

    • Information Ordering

      Ordering or arranging things.

    • Memorization

      Remembering words, numbers, pictures, or steps.

    • Time Sharing

      Doing two or more things at the same time.

    • Spatial Orientation

      Knowing where things are around you.

    • Mathematical Reasoning

      Choosing the right type of math to solve a problem.

    • Selective Attention

      Paying attention to something without being distracted.

    Knowledge

    • Philosophy and Theology

      Knowledge of different philosophical systems and religions. This includes their basic principles, values, ethics, ways of thinking, customs, practices, and their impact on human culture.

    • Foreign Language

      Knowledge of the structure and content of a foreign (non-English) language including the meaning and spelling of words, rules of composition and grammar, and pronunciation.

    • Medicine and Dentistry

      Knowledge of the information and techniques needed to diagnose and treat human injuries, diseases, and deformities. This includes symptoms, treatment alternatives, drug properties and interactions, and preventive health-care measures.

    • Chemistry

      Knowledge of the chemical composition, structure, and properties of substances and of the chemical processes and transformations that they undergo. This includes uses of chemicals and their interactions, danger signs, production techniques, and disposal methods.

    • Transportation

      Knowledge of principles and methods for moving people or goods by air, rail, sea, or road, including the relative costs and benefits.

    • Telecommunications

      Knowledge of transmission, broadcasting, switching, control, and operation of telecommunications systems.

    • Personnel and Human Resources

      Knowledge of principles and procedures for personnel recruitment, selection, training, compensation and benefits, labor relations and negotiation, and personnel information systems.

    • Customer and Personal Service

      Knowledge of principles and processes for providing customer and personal services. This includes customer needs assessment, meeting quality standards for services, and evaluation of customer satisfaction.

    • Mathematics

      Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.

    • Therapy and Counseling

      Knowledge of principles, methods, and procedures for diagnosis, treatment, and rehabilitation of physical and mental dysfunctions, and for career counseling and guidance.

    • English Language

      Knowledge of the structure and content of the English language including the meaning and spelling of words, and rules of composition and grammar.

    • History and Archeology

      Knowledge of historical events and their causes, indicators, and effects on civilizations and cultures.

    • Public Safety and Security

      Knowledge of relevant equipment, policies, procedures, and strategies to promote effective local, state, or national security operations for the protection of people, data, property, and institutions.

    • Computers and Electronics

      Knowledge of circuit boards, processors, chips, electronic equipment, and computer hardware and software, including applications and programming.

    • Mechanical

      Knowledge of machines and tools, including their designs, uses, repair, and maintenance.

    • Biology

      Knowledge of plant and animal organisms, their tissues, cells, functions, interdependencies, and interactions with each other and the environment.

    • Geography

      Knowledge of principles and methods for describing the features of land, sea, and air masses, including their physical characteristics, locations, interrelationships, and distribution of plant, animal, and human life.

    • Communications and Media

      Knowledge of media production, communication, and dissemination techniques and methods. This includes alternative ways to inform and entertain via written, oral, and visual media.

    • Administration and Management

      Knowledge of business and management principles involved in strategic planning, resource allocation, human resources modeling, leadership technique, production methods, and coordination of people and resources.

    • Production and Processing

      Knowledge of raw materials, production processes, quality control, costs, and other techniques for maximizing the effective manufacture and distribution of goods.

    • Building and Construction

      Knowledge of materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads.

    • Administrative

      Knowledge of administrative and office procedures and systems such as word processing, managing files and records, stenography and transcription, designing forms, and workplace terminology.

    • Economics and Accounting

      Knowledge of economic and accounting principles and practices, the financial markets, banking, and the analysis and reporting of financial data.

    • Physics

      Knowledge and prediction of physical principles, laws, their interrelationships, and applications to understanding fluid, material, and atmospheric dynamics, and mechanical, electrical, atomic and sub-atomic structures and processes.

    • Psychology

      Knowledge of human behavior and performance; individual differences in ability, personality, and interests; learning and motivation; psychological research methods; and the assessment and treatment of behavioral and affective disorders.

    • Sociology and Anthropology

      Knowledge of group behavior and dynamics, societal trends and influences, human migrations, ethnicity, cultures, and their history and origins.

    • Fine Arts

      Knowledge of the theory and techniques required to compose, produce, and perform works of music, dance, visual arts, drama, and sculpture.

    • Sales and Marketing

      Knowledge of principles and methods for showing, promoting, and selling products or services. This includes marketing strategy and tactics, product demonstration, sales techniques, and sales control systems.

    • Engineering and Technology

      Knowledge of the practical application of engineering science and technology. This includes applying principles, techniques, procedures, and equipment to the design and production of various goods and services.

    • Food Production

      Knowledge of techniques and equipment for planting, growing, and harvesting food products (both plant and animal) for consumption, including storage/handling techniques.

    • Design

      Knowledge of design techniques, tools, and principles involved in production of precision technical plans, blueprints, drawings, and models.

    • Law and Government

      Knowledge of laws, legal codes, court procedures, precedents, government regulations, executive orders, agency rules, and the democratic political process.

    • Education and Training

      Knowledge of principles and methods for curriculum and training design, teaching and instruction for individuals and groups, and the measurement of training effects.

    Career Video

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    Pay

    • Ohio Annual Salary 101020/yr
    • Typical Salary
    • Ohio Hourly Wage 48.57/hr
    • Typical Hourly Wage

    Ohio Employment Trends

    • Currently Employed 490
    • Yearly Projected Openings 40

    Typical Education

    Personality

    Realistic: People interested in this work like activities that include practical, hands-on problems and solutions.They do well at jobs that need:
    • Cautiousness
    • Attention to Detail
    • Dependability
    • Integrity
    • Intellectual Curiosity
    • Stress Tolerance

    Tools

    • Adjustable wrenches
    • Alternating current AC arc welder
    • Ammeters
    • Bench drilling machine
    • Bench vises
    • Calipers
    • Claw hammer
    • Cold chisels
    • Die stocks
    • Drill bit set
    • Electronics pliers
    • Fire extinguishers
    • Gas welding or brazing or cutting apparatus
    • Hacksaw
    • Insulation resistance meters
    • Jigsaw
    • Ladders
    • Locking pliers
    • Manlift or personnel lift
    • Metal shearing machine
    • Micrometers
    • Multimeters
    • Ohmmeters
    • Oscilloscopes
    • Phasemeters
    • Portable data input terminals
    • Power drills
    • Power grinders
    • Power riveter
    • Power saws
    • Precision file
    • Pullers
    • Punches or nail sets or drifts
    • Radiation detectors
    • Ratchets
    • Reamer
    • Relay tester
    • Saws
    • Screwdrivers
    • Sockets
    • Soldering iron
    • Spanner wrenches
    • T handle tap wrenches
    • Thermal imager
    • Threading taps
    • Tinners snips
    • Voltage and current meter calibrator
    • Voltage or current meters

    Technology

    • Analytical or scientific software
    • Compliance software
    • Computer aided design CAD software
    • Electronic mail software
    • Industrial control software
    • Internet browser software
    • Office suite software
    • Operating system software
    • Spreadsheet software
    • Word processing software

    Tags

    • InDemand occupations are considered a priority by the state of Ohio.
    • Apprenticeships are available for this occupation. These programs can help you get hands-on experience and build your skills.

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