Transformer Insulating Oil Testing

BAUR Transformer Insulating Oil Testing

Protect transformer reliability before oil problems become outages.

We supplies BAUR oil testing solutions for breakdown voltage testing, dissipation factor analysis, standards-based reporting, and field or laboratory workflows.

Talk to a Specialist Find the Right Tester

✓ Canadian technical sales support ✓ Field, lab, and rental options ✓ BAUR diagnostics portfolio

TEST MODE: IEC / ASTM
VOLTAGE RANGE: up to 100 kV
RESULT: reproducible diagnostics

75 kVDPA 75 C ACCU portable field testing

100 kVDTA 100 C lab breakdown testing

tan δDTL C dissipation factor analysis

PDF/TXTITS Lite log management

Insulating oil is a critical indicator of transformer health.

Oil condition affects cooling performance, dielectric strength, ageing, and long-term asset reliability. Routine testing helps teams decide whether oil can remain in service, needs reconditioning, or should be changed.

Avoid unplanned downtime

Identify contamination, ageing, and dielectric weakness before they lead to plant shutdowns or transformer failures.

Meet test requirements

Support regular oil testing programs using recognized methods such as IEC 60156, ASTM D1816, ASTM D877, IEC 60247, and more.

Standardize reporting

Use clear measurement results, archived reports, and organized test logs for maintenance decisions and audit-ready records.

Choose the BAUR oil tester for your workflow.

From mobile breakdown voltage checks to high-throughput laboratory testing and detailed dissipation factor diagnostics.

Field teams

DPA 75 C ACCU

Portable oil breakdown voltage tester

Compact, robust design for onsite use
Test voltage range up to 75 kVrms
Repeatable breakdown measurements for mineral, silicone, and plant oils
Battery-powered ACCU configuration for mobile work

View DPA 75 C ACCU

Laboratories

DTA 100 C

Oil breakdown voltage tester for continuous lab use

Designed for daily continuous laboratory operation
Test voltage up to 100 kV
Fully automatic measurement sequence
Reliable, reproducible breakdown voltage results

View DTA 100 C

Oil diagnostics

DTL C

Dissipation factor oil tester

Fully automatic dissipation factor measurement
Pre-programmed standards
High-accuracy analysis for efficient oil management
Ideal for laboratories, utilities, and oil analysis specialists

View DTL C

Quick comparison

Use this guide to narrow down the best fit before speaking with us.

Model	Main test	Best fit	Power / setup	Key standards and range
DPA 75 C ACCU	Breakdown voltage	Mobile field testing and maintenance teams	Rechargeable battery-powered configuration	IEC 60156, ASTM D1816, ASTM D877 and more; up to 75 kV
DTA 100 C	Breakdown voltage	High-volume and continuous laboratory testing	Mains-powered laboratory instrument	IEC 60156, ASTM D1816, ASTM D877 and more; up to 100 kV
DTL C	Dissipation factor / tan δ and permittivity	In-depth oil diagnostics and contamination trend analysis	Mains-powered laboratory instrument	IEC 60247, VDE 0380-2, BS 5737 and more

Complete your testing workflow with BAUR software and reporting.

Keep test records organized, accessible, and professional for maintenance history, compliance documentation, and customer reporting.

PDF

ITS Lite

Automatically archive measurement logs in PDF and text file formats, structure stored test data, customize layouts, and access measurement data quickly.

View ITS Lite

REP

Report Manager

Professional measurement data management for insulating oil testing, supporting cleaner reporting workflows for lab and maintenance teams.

View Report Manager

Frequently asked questions

Simple guidance for selecting the right BAUR transformer oil testing solution.

Which BAUR tester is best for onsite transformer oil testing?

The DPA 75 C ACCU is the best fit for mobile field teams because it is compact, robust, battery-powered, and designed for portable onsite oil breakdown voltage testing.

Which model should we use for continuous lab breakdown voltage testing?

The DTA 100 C is designed for daily continuous laboratory operation and provides breakdown voltage testing up to 100 kV with a fully automatic measurement sequence.

Which model measures tan δ / dissipation factor?

The DTL C is the BAUR dissipation factor oil tester for tan δ and relative permittivity analysis. DPA 75 C ACCU and DTA 100 C are oil breakdown voltage testers.

Can RCC Electronics help us choose between purchase and rental?

Yes. we can help review the application, test volume, location, required standards, project timeline, and reporting needs to recommend purchase, software, or rental options.

BAUR Transformer Oil Testers
Feature	DPA 75 C ACCU	DTA 100 C	DTL C
Type	Oil Breakdown Voltage Tester	Oil Breakdown Voltage Tester	Dissipation Factor Oil Tester
Key Functionality	Measures breakdown voltage of transformer oil	Measures breakdown voltage of transformer oil with automated processes	Measures dissipation factor (tan δ) of transformer oil, indicating oil quality and contamination
Power Source	Rechargeable battery-powered (ACCU)	Mains-powered	Mains-powered
Testing Standards	IEC 60156, ASTM D1816, ASTM D877 and more	IEC 60156, ASTM D1816, ASTM D877 and mor	IEC 60247, VDE 0380-2:2005_01 BS 5737:1979 and more
Measurement Range	Up to 75 kV	Up to 100 kV	Dissipation factor and relative permittivity measurements
Display and Interface	High-resolution touch display; user-friendly operation	High-resolution touch display; automated testing protocols	High-resolution touch display; dedicated to dissipation factor measurements
Automation Features	Automatic testing sequences; customizable test parameters	Fully automated testing; robust data analysis and export functions	Semi-automated for dissipation factor testing
Portability	High portability due to battery operation; suitable for on-site testing	Designed for laboratory and high-throughput testing	Designed for laboratory use
Data Export and Analysis	USB and PC connectivity; detailed report generation	USB and PC connectivity; advanced analytics and comprehensive report generation	USB and PC connectivity; focused on dissipation factor trends
Application Focus	Mobile testing in the field; robust for varied environments	High-volume laboratory testing; suitable for precise, repeatable measurements	In-depth analysis of oil insulation properties in laboratory settings
Unique Features	Battery operation; excellent for remote locations	High voltage range (100 kV); exceptional automation for breakdown testing	Specialized in dissipation factor measurement; provides precise insights into dielectric loss
Typical Users	Field engineers, maintenance teams	Laboratory technicians, transformer testing professionals	Oil analysis specialists, laboratory engineers