Auxiliary Potential Transformers

Osborne Auxiliary Potential Transformers (Aux PT’s) are used in utility and commercial industrial power systems. Osborne works with our clients to identify the safety advantages of using auxiliary potential transformers (Aux PT’s) to establish protection schemes for high voltage equipment. Aux PT’s step the voltage down to safer levels, normally below 600 V AC.


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Auxiliary Potential Transformer Design Options Table

Spec Range Available
Input Voltages: 0 – 600 Volts
Output Voltages: 0 – 600 Volts
Thermal Voltampere Ratings: 0.250 – 5,000 Voltamperes
Compensated Voltamp Rating: 0.250 – 5,000 Voltamperes
Burden Power Factor: 0 – 100% Lagging or Leading
Frequency: 20 – 100,000 Hertz
Terminals: Wire Leads – Finger Safe
Enclosures: Open Core & Coil – Hazardous Environment
Dielectric Strength Testing: 500 Volts DC to 6,000 Volts AC
Agency Approvals: UL, CSA, CE and/or TUV

What Are Osborne’s Auxiliary Potential Transformer (Aux PT) Design Options?

“Design Options” refers to the types of features typically available for Osborne’s Auxiliary Potential Transformers (Aux PT’s) . We share these options to help you determine if Osborne’s capabilities are a good fit for your project.

If you’re looking to develop a custom auxiliary potential transformer and it fits in the ranges of Osborne’s auxiliary potential transformer design options table, there’s a great chance that we can make your project a success. Call Osborne today at 800-229-9410.

Why Choose Osborne?

Premium auxiliary current transformers are ideal for select applications. Does your project demand exceptional design service and high performance? If so, please consider our Design Options page for details about the performance benefits of application specific engineering. Next we encourage you to visit our Partners page for a clear idea of Osborne’s unique collaborative development approach.