Custom Current Transformers

At Stangenes Industries, we manufacture two types of current transformers: wide band current transformers and pulse current transformers. All of our current transformers can be constructed in a broad array of configurations and sizes. As well as custom transformers, we carry many standard models available directly in stock. Our wide-band current transformers provide a maximum peak current range from 500A to 10,000A and a maximum RMS current range from 5A to 65A, based on model. Alternatively, the pulse current transformers provide a maximum peak current range from 500A to 50kA and a maximum RMS current range from 5A to 400A, also based on model.

Our current transformers offer complete isolation for the circuit to be measured, creating no ground currents. These top-notch transformers are equipped with an internal 50Ω termination for coaxial cable matching. They posses an electrostatic shielded construction and contain a variety of hole sizes to fit most conductors and voltages. Additionally, both types of transformers offer a high (+/-) 0.5% accuracy.

Offering a wide range of premium magnetic products, we invite you to contact Stangenes Industries today to learn more about our superior line of wide band and pulse current transformers.

See Our Standard Products

Current Transformer Capabilities

Industry Standards

ISO-9001-2015
International Organization for Standardization

General Information

Stangenes Current Transformers are available in many sizes and configurations directly from stock. Custom sizes and configurations can be designed to meet nearly any requirement.

For measurement of pulse and AC currents over a wide range of amplitudes, pulse lengths, and frequencies.

Stangenes Current Transformers have:

  • Complete isolation from the circuit to be measured (no ground currents)
  • Shielded construction
  • Internal 50Ω termination for coaxial cable matching
  • High accuracy (±0.5%)
  • A variety of hole sizes to fit most conductors and voltages
Wide Band Current Transformers

Accuracy: ±0.5% initial pulse response for all models. Specifications for transformer ratio, accuracy, and droop are at open circuit. Rise time and bandwidth are when terminated with 50Ω. All models are electrostatically shielded and have a 50Ω output impedance.

Model No. Output (volt/amp) Accuracy ±0.5% Inner Diameter (inches) Max. Current (amperes) Peak Max. Current (amperes) Rms Square Pulse Rise Time (nanosec) Square Pulse Droop (%/µsec) Square Pulse IT max. (amp.sec)
0.5-1.0W 1.0 0.5 500 5 10 0.1 0.002
0.5-0.1W 0.1 0.5 5 k 50 20 0.001 0.2
0.5-0.1WA 0.1 0.5 5 k 50 20 0.05 0.25
2-1.0W 1.0 2.0 500 7.5 20 0.08 0.005
2-0.5W 0.5 2.0 1 k 15 20 0.02 0.02
2-0.1W 0.1 2.0 5 k 65 20 0.0008 0.5
2-0.1WA 0.1 2.0 10 k 65 20 0.0006 0.5
Model No. Approx. 3dB Point Low (Hz) Approx. 3dB Point High (MHz)) I/F (Peak Amp/Hz) Notes Receptacle
0.5-1.0W 140 35 0.006 1 BNC Jack
0.5-0.1W 1 20 0.6 1 BNC Jack
0.5-0.1WA 100 20 1.6 BNC Jack
2-1.0W 125 20 0.017 1 BNC Jack
2-0.5W 40 20 0.07 1 BNC Jack
2-0.1W 1 20 1.5 1 BNC Jack
2-0.1WA 1 20 1.5 1 C Jack

Notes:

  • May need small bias current through secondary for maximum rating.
  • Double shielded

Other standard and custom models available.

Pulse Current Transformers
Model No. Output (volt/amp) Accuracy ±0.5% Inner Diameter (inches) Max. Current (amperes) Peak Max. Current (amperes) Rms Square Pulse Rise Time (nanosec) Square Pulse Droop (%/µsec) Square Pulse IT max. (amp.sec) Notes
0.5-1.0 1 0.5 500 7 10 0.05 0.002 1
0.5-0.1 0.1 0.5 5 k 30 10 0.05 0.02 1
0.5-0.01 0.01 0.5 50 k 300 20 0.0005 0.2 1
1-1.0 1 1 500 7 20 0.1 0.006 1
1-0.1 0.1 1 5 k 30 20 0.01 0.06 1
2-1.0 1 2 500 7 20 0.05 0.006 1
2-0.1 0.1 2 5 k 30 20 0.005 0.06 1
3-1.0 1 2.87 500 7 20 0.2 0.002 1
3-0.1 0.1 2.87 5 k 30 20 0.35 0.1
3-0.1A 0.1 2.87 5 k 30 20 0.015 0.03
3-0.01 0.01 2.87 50 k 300 100 0.02 1
3-0.002 0.002 2.87 200 k 1100 100 0.005 5
3.5-1.0 1 3.5 500 7 50 0.01 0.03 1
3.5-0.1 0.1 3.5 5 k 70 50 0.013 0.65 2
3.5-0.01 0.01 3.5 50 k 400 200 0.002 22 2

Other standard and custom models available.
Notes:

  • May need small bias current through secondary for maximum rating.
  • Double shielded