Stangenes Current Transformers have been constructed in so many shapes and sizes that it is impossible to show them all at once. The following descriptions represent broad categories, which can be reconfigured almost infinitely.
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 50 ohm 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 bandwith are when terminated with 50 ohms. All models are electrostatically shielded and have a 50 ohm output impedance.
Model No.
Output (volt/amp) Accuracy +/-0.5%
Inner diameter (Inches)
Max Current (amps) Peak
Max Current (amps) Rms
Square Pulse Rise Time (nanosec)
Square Pulse Droop (%/usec)
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
5k
50
20
0.001
0.2
0.5-0.1WA
0.1
0.5
5k
50
20
0.05
0.25
2-1.0W
1.0
2.0
500
7.5
29
0.08
0.005
2-0.5W
0.5
2.0
1k
15
20
0.02
0.02
2-0.1W
0.1
2.0
5k
65
20
0.0008
0.5
2-0.1WA
0.1
2.0
10k
65
20
0.0008
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 (amps) Peak
Max Current (amps) Rms
Square Pulse Rise Time (nanosec)
Square Pulse Droop (%/usec)
Square Pulse IT Max (amp.sec)
Notes
0.5-1.0
1.0
0.5
500
7
10
0.05
0.002
1
0.5-0.1
0.1
0.5
5k
30
10
0.05
0.02
1
0.5-0.01
0.01
0.5
50k
300
20
0.0005
0.2
1
1-1.0
1.0
1.0
500
7
20
0.1
0.006
1
1-0.1
0.1
1.0
5k
30
20
0.01
0.06
1
2-1.0
1.0
2.0
500
7
20
0.05
0.006
1
2-0.1
0.1
2.0
5k
30
20
0.005
0.06
1
3-1.0
1.0
2.87
500
7
20
0.2
0.002
1
3-0.1
0.1
2.87
5k
30
20
0.35
0.1
3-0.1A
0.1
2.87
5k
30
20
0.015
0.03
3-0.01
0.01
2.87
50k
300
100
0.02
1.0
3-0.002
0.002
2.87
200k
1100
100
0.005
5.0
3.5-1.0
1.0
3.50
500
7
50
0.01
0.03
1
3.5-0.1
0.1
3.50
5k
70
50
0.013
0.65
2
3.5-0.01
0.01
3.50
50k
400
200
0.002
22
2
Notes:
May need small bias current through secondary for maximum rating
