Certified OSHA Training
Transformer Oil Sampling: Proper Collection Techniques and Best Practices
- OSHA-Authorized
- DOL-Aligned
$
$50.00$
What You’ll Learn?
Updated:
Transformer Oil Sampling: Proper Collection Techniques and Best Practices
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What You’ll Learn?
Course Details
This self-paced online course teaches technicians how to obtain representative transformer oil samples for reliable laboratory analysis. Because diagnostic tests such as dissolved gas analysis (DGA), moisture analysis, dielectric testing, and furan analysis are only as accurate as the sample collected, proper transformer oil sampling technique is essential to sound condition-based maintenance. Participants learn the objectives of oil sampling, the safety precautions and personal protective equipment (PPE) required, and the sampling equipment and materials needed to do the job correctly. The course covers step-by-step sample collection procedures for both energized and de-energized transformers, along with valve and syringe methods that keep each specimen clean. A central focus is contamination prevention — a leading cause of invalid test results — and the correct way to label, document, store, and transport insulating oil samples. Learners also study how to evaluate sample quality and recognize when resampling is necessary.
Designed for substation technicians, electrical maintenance personnel, transformer technicians, utility workers, and reliability and condition monitoring staff, the training builds practical skills that support accurate diagnostics and better transformer asset management decisions. Delivered entirely online as asynchronous, LMS-based learning, the course lets participants complete all 1.5 contact hours at their own pace. Upon successful completion, learners earn a certificate of completion and 0.15 IACET CEU documenting their professional development. Enroll today to sharpen your transformer oil sampling skills and help protect critical electrical assets through stronger predictive maintenance.
Course Syllabus
Course Description
Pre-Course Information Sheet
Course: How to Take Oil Sample: (Transformer Proper Collection Techniques and Best Practices) (Online)
Course Overview
This course provides participants with the knowledge and practical skills necessary to obtain representative transformer oil samples for laboratory analysis. Proper sampling techniques are critical to ensuring accurate results from dissolved gas analysis (DGA), moisture analysis, dielectric testing, furan analysis, and other diagnostic evaluations used to assess transformer condition.
Participants will learn sampling objectives, safety precautions, sampling equipment requirements, contamination prevention methods, sample collection procedures, documentation requirements, handling practices, and common causes of invalid test results.
The course emphasizes obtaining high-quality samples that support reliable condition-based maintenance and asset management decisions.
Delivery Method
Online / LMS-Based Asynchronous Learning
Participants may complete the course at their own pace within the allotted course access period.
Course Duration
1.5 Contact Hours
IACET CEUs Awarded
0.15 CEU
Technical Requirements
Participants must have:
- Reliable internet access
- Current web browser (Chrome, Edge, Firefox, or Safari)
- Audio capability for course videos and PowerPoint
- Ability to view PDF documents
- Access to the TTI Learning Management System (LMS)
Recommendation:
- Desktop or laptop computer for optimal learning experience
Criteria for Earning IACET
To receive 0.15 IACET CEU, participants must:
- Complete all required course modules
- Complete all learning activities
- Successfully complete required assessments
- Achieving a minimum passing score of 80% on course assessments
- Complete the course evaluation
Learner Support
Technical assistance is available for LMS access and navigation issues.
For support, contact:
Phone: (817) 769-6275
Email: [email protected]
Accessibility Statement
TTI is committed to providing an accessible learning environment. Course materials include accessibility features such as:
- Accessible digital content
- Adjustable screen viewing options where available
Learners requiring accommodation should contact TTI prior to beginning the course.
Important Completion Information
Participants are encouraged to complete the course within the assigned enrollment period. Progress is automatically tracked within the LMS.
Failure to complete all required activities and assessments will result in no CEU award being issued.
Acknowledgment
By beginning this course, participants acknowledge that they have reviewed and understand the course requirements, learning outcomes, participation expectations, and CEU award criteria.
What Will I Learn?
Upon successful completion of this course, participants will be able to:
- Explain the purpose of transformer oil sampling and laboratory analysis.
- Identify common tests performed on transformer insulating oil.
- Recognize hazards associated with transformer oil sampling activities.
- Select appropriate personal protective equipment (PPE) for sampling tasks.
- Identify required sampling equipment and materials.
- Describe methods for preventing contamination during sample collection.
- Demonstrate proper transformer oil sampling procedures.
- Collect representative oil samples suitable for laboratory analysis.
- Properly label, document, store, and transport oil samples.
- Identify common sampling errors that affect laboratory results.
- Apply safe work practices while collecting oil samples from energized and de-energized equipment in accordance with organizational procedures.
- Evaluate sample quality and determine when resampling may be necessary.
Target Audience
This course is intended for:
- Substation technicians
- Electrical maintenance personnel
- Transformer technicians
- Utility workers
- Reliability and condition monitoring personnel
- Field service technicians
- Supervisors responsible for transformer maintenance
- Environmental, Health, and Safety (EHS) professionals supporting electrical operations
Total Course Duration
1 hour, 30 minutes
Materials Included
Participants will have access to:
- How to Take Oil Sample Modules
- Final Assessment
- Course Evaluation
Requirements / Instructions
There are no formal prerequisites for this course.
Participants should:
- Have a basic understanding of transformer operations and maintenance.
- Possess general workplace safety knowledge.
- Be familiar with electrical safety procedures applicable to their organization.
- Understand basic maintenance practices.
Curriculum
2 modules · 1 hour
How to Take Oil Sample
Taking an oil sample from a transformer requires using the bottom drain valve, cleaning it thoroughly, and flushing it with oil to avoid contamination. Using a syringe or vacuum pump, draw 50-600 ml of oil, ensuring no air bubbles are trapped, and store it in a sealed, airtight container to protect the sample's integrity.
- How to Take Oil SampleLesson
- How to Take Oil Sample ExamQuiz
Course Evaluation
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- Course Review & CompletionLesson
Certificate of Completion
Meet Your Instructor
Lead HSE Instructor
The Training Institute is a team of seasoned field experts with decades of hands-on experience across electrical safety, OSHA compliance, confined-space training, and hazardous-materials response. Our instructors combine practical jobsite expertise with proven adult-learning methodology to deliver training that meets — and exceeds — federal and industry standards.
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Course Materials
Preview the materials included with this course. Enrolled students can download all files.
- How to Take Oil SampleSign in & enroll