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Tap Changer Jobs (NOW HIRING)

Hitachi

Tap Changer Diagnostic Specialist

Alamo, TN · Hybrid

Knowledge of tap changer monitoring systems, including digital devices, software and communication * Data analysis and interpretation * Proven experience in transformer engineering studies ...

Hitachi

Field Supervisor and Tester

Bridgeton, MO

Proficiency with Load Tap Changer (LTC) maintenance and repair is a plus. Experience welding above and below oil on transformer tanks is a plus. Possession of a Class A CDL is a plus. Must have a ...

Prolec Energy

LTC Technician

Dallas, TX · On-site

$45K - $58K/yr

LTC Technician (In‑House Operations) Cum Trainer The LTC Technician (In‑House Operations) cum Trainer is responsible for executing, supporting, and continuously improving Load Tap Changer (LTC ...

Berkshire Hathaway Energy

Line Mechanic

Knoxville, IA · On-site

... tap changer information and similar work to restore service. Operates substation equipment to include: open/close breakers and reclosers, operate load tap changers and voltage regulator controls ...

Prolec-GE Waukesha,Inc

LTC Technician

Dallas, TX · On-site

$31.03 - $37.74/hr

JOB SUMMARY The LTC Technician (In‑House Operations) cum Trainer is responsible for executing, supporting, and continuously improving Load Tap Changer (LTC) assembly, overhaul, testing, and ...

Prolec-GE Waukesha, Inc

LTC Technician

Dallas, TX · On-site

$45K - $58K/yr

JOB SUMMARY The LTC Technician (InHouse Operations) cum Trainer is responsible for executing, supporting, and continuously improving Load Tap Changer (LTC) assembly, overhaul, testing, and controls ...

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Tap Changer information

What are the key skills and qualifications needed to thrive as a Tap Changer, and why are they important?

To thrive as a Tap Changer, you need a solid understanding of electrical systems, transformer operation, and safety protocols, often backed by vocational training or certification in electrical engineering or a related field. Familiarity with tools such as voltage testers, multimeters, and transformer control systems is typically required. Attention to detail, problem-solving ability, and strong communication skills help ensure efficient maintenance and safe operation. These skills and qualities are crucial for minimizing downtime, preventing electrical faults, and maintaining reliable power distribution.

What are tap changers?

Tap changers are mechanical devices attached to electrical transformers that allow for the adjustment of transformer winding connections. By changing the tap position, they help regulate the output voltage of the transformer to match varying load requirements or compensate for voltage drops. There are two main types: on-load tap changers (OLTC), which can adjust the taps while the transformer is energized, and off-load tap changers, which require the transformer to be de-energized. Tap changers play a crucial role in maintaining stable voltage levels in power distribution networks.

What are some typical challenges faced by Tap Changers during routine maintenance and how are they addressed?

Tap Changers often face challenges such as dealing with high-voltage equipment, managing oil contamination, and ensuring minimal downtime during maintenance. Proper safety protocols and personal protective equipment are essential to mitigate electrical hazards. Technicians must carefully monitor oil quality and replace or filter it as needed to prevent arcing or insulation failure. Additionally, effective coordination with electrical engineers and operations teams helps schedule maintenance during low-demand periods, reducing service disruption.

What is the difference between Tap Changer vs Power Transformer Technician?

AspectTap ChangerPower Transformer Technician
Primary ResponsibilitiesAdjusts transformer voltage levels by changing tap settingsMaintains, repairs, and tests transformers and related equipment
Required SkillsElectrical knowledge, precision, understanding of tap changer mechanismsTransformer operation, electrical testing, troubleshooting
Work EnvironmentSubstations, power plants, electrical facilitiesPower plants, substations, repair shops
CertificationsElectrical certifications, specialized tap changer trainingElectrical certifications, transformer-specific training

While both roles involve electrical systems in power distribution, a Tap Changer focuses on adjusting transformer voltage levels through tap settings, whereas a Power Transformer Technician handles the maintenance and repair of transformers overall. Understanding these differences helps in choosing the right career path or job focus within the electrical power industry.

Infographic showing various Tap Changer job openings in the United States as of May 2026, with employment types broken down into 9% Locum Tenens, 69% Full Time, 18% Part Time, 2% Temporary, and 2% Contract. Highlights an 91% Physical, 6% Hybrid, and 3% Remote job distribution.
Tap Changer Diagnostic Specialist

Tap Changer Diagnostic Specialist

Hitachi

Alamo, TN • Hybrid

Full-time

Posted 9 days ago

Job description

Location:

Ludvika, Ludvika, Sweden

Job ID:

R0120770

Date Posted:

2026-02-26

Company Name:

HITACHI ENERGY SWEDEN AB

Profession (Job Category):

Engineering & Science

Job Schedule:

Full time

Remote:

No

Job Description:

The opportunity

Working as Tap Changers Diagnostic Specialist, you will ideate, develop, implement and maintain diagnostic algorithms to assess the condition of various types of tap changers, translating data into actionable information.

You will support our customers to manage their transformer fleets throughout the lifecycle by providing expert monitoring and diagnostic services for tap changers, safeguarding the electrical infrastructure by detecting early signs of potential failure, enabling predictive maintenance, optimizing asset utilization and minimizing downtime.

You will be accountable to ensure technology leadership on tap changers monitoring and diagnostics while contributing to our customer satisfaction and profitable growth.

Our flexible work practices help you optimize personal and business performance while creating an environment where all employees can develop their skills and grow. For this role we follow a hybrid work structure where you can work remotely or from the office, as needed, based on demands of specific tasks or personal work preferences.

Your responsibilities

  • You stay up to date with the latest technology solutions, international standards, market trends and customer requirements relating to transformer monitoring and diagnostics, with specific focus on tap changers
  • You propose novel solutions in the field of tap changers monitoring and diagnostics
  • You work in close collaboration with product management to define the monitoring and diagnostic services development roadmap
  • You drive the development and the implementation of tap changers monitoring and diagnostic algorithms, making sure they are properly documented and implemented in the appropriate IT tools and that they stay up to date
  • You prepare training material and deliver trainings sessions to designated service units
  • You participate in international pre-standardization and standardization work
  • You provide deep technical support to root cause analyses and issues resolutions, making sure lessons learnt are integrated in our algorithms
  • You provide advanced technical support to other functions (e.g. Engineering, Supply Chain, Sales, ...), participating in meetings with customers and suppliers as needed
  • You participate in trade shows on request to better identify customer pain points and associated consequences.
  • Living core values of safety and integrity, which means taking responsibility for your own actions while caring for your colleagues and the business

Your Background

  • MSc or BSc Engineering degree or equivalent diploma qualification
  • 5+ years of experience in tap changers service and/or engineering.
  • Strong technical background on tap changers in general, including diagnostic equipment, test sets, tools, safety protocols and typical maintenance and repair procedures
  • Direct experience in installation, commissioning and on-site activities is a plus
  • Knowledge of tap changer monitoring systems, including digital devices, software and communication
  • Data analysis and interpretation
  • Proven experience in transformer engineering studies, diagnostics, and condition assessment
  • Demonstrated experience in interaction with customers and/or international standards groups
  • International experience and intercultural sensitivity
  • Structured and analytical thinking, with a collaborative, solutions-oriented approach and strong communication skills
More about us
  • At Hitachi Energy, you'll contribute to technologies that make energy systems more reliable, efficient, and sustainable.
  • You'll join a global, inclusive team that encourages innovation, collaboration, and continuous learning.
  • We offer space to grow, opportunities to expand your expertise, and a flexible hybrid work model designed to support both personal and business success.
    Qualified individuals with a disability may request a reasonable accommodation if you are unable or limited in your ability to use or access the Hitachi Energy career site as a result of your disability. You may request reasonable accommodations by completing a general inquiry form on our website. Please include your contact information and specific details about your required accommodation to support you during the job application process.This is solely for job seekers with disabilities requiring accessibility assistance or an accommodation in the job application process. Messages left for other purposes will not receive a response.
    Hitachi Vantara logo

    About Hitachi Vantara

    Sourced by ZipRecruiter

    Hitachi Rail is a fully integrated, global provider of rail solutions across rolling stock, signaling, service & maintenance, digital technology and turnkey. With a presence in 38 countries across three continents and over 13,000 employees, our mission is to contribute to society through the continuous development of superior rail transport solutions.

    Industry

    It services

    Company size

    10,000+ Employees

    Headquarters location

    Santa Clara, CA, US

    Year founded

    2017

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