Osborne’s Auxiliary Current Transformers

Osborne Auxiliary Current Transformers are often used to reduce system currents to lower values appropriate for instrumentation and/or protection circuits. The Aux CT’s are designed for specific current ratios and burden impedance with a known transformation error. Osborne’s units are built for high performance and longevity in the most demanding environments.

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Auxiliary Current Transformer Design Options Table

Spec Range Available
Input Voltages: 0 – 15,000 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
Phase: Single – Multiple
Electrostatic Shielding: Single – Multiple Shields
Terminals: Wire Leads – Finger Safe
Enclosures: Open Core & Coil – Hazardous Environment
Agency Approvals: UL, CSA, CE and/or TUV

Why Osborne Transformer?

Every Osborne transformer is designed for extreme durability. Your design begins with extensive electromagnetic and mechanical modeling, then proceeds through a detailed battery of simulations. These simulations are progressively optimized to arrive at the ideal core, conductor, and other critical components. Your application will engage the expertise of a select network of the world’s finest raw material suppliers. The composite parts of your transformer will be built in strict compliance with Osborne’s exacting standards, and rigorous testing procedures.
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