Unique current transformer designs for applications including instrument control & monitoring, switch mode power supply control and feedback for equipment protection. Materials are chosen to optimize performance and reduce cost.
Example Types of Current Sense Transformers:
Recent Work
Current Source Transformer
High Power 250:1 Turns Ratio Open Style, 4 Slot Chassis Mount, 1600A Output
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Current Transformer (CT)
1000:1 Turns Ratio Tape Wound Toroid, 220A Primary Current
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Large Coil-Only Current Transformer (EC Custom Model 217076)
Used to measure current for utility applications, this large coil consists of 3-ph windings of 0.060x0.160 & 0.075x0.280 rectangular MW18C wire wound on a custom paper coil form. Class H insulation. Hytex layer insulation and Mylar outerwrap.
State-of-the-art materials, expert design capabilty and world-class manufacturing
Current Sense Transformer Capabilities at Electronic Craftsmen
Burden load – may be provided by us or customer supplied
Accuracy as low as 0.1%
Power: From mW to 50kVA @ 60Hz or up to 200kVA @ 20kHz (typical)
Working Voltage up to 12kV (depending on frequency); multiple stages possible for higher outputs
Frequency: 25Hz to 500kHz (typical)
Temperature Class to 220C (155C / Class F typical)
Weight: 0.06 oz / 1g to 550 lbs / 250kg
Multiple taps as required
Dielectric Strength (hipot) to 30kVac or 20kVdc
Parts can be vacuum varnished or molded with a variety of hard or soft encapsulant materials with thermal conductivity.
Wire sizes from 1-45 AWG or Copper Foil to 0.050in thick (in multiple layers for higher current); Litz wire for higher frequency
