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BROADBAND TERMINATED CURRENT TRANSFORMERS

NON CONTACT CURRENT MEASUREMENT

Transformer-Trace

Measure irregular current waveforms without electrical contact

0.1Hz to 100MHz, 10mA to 50KA

TECHNICAL INFORMATION

INTRODUCTION

CHARACTERISTICS and explanation of terms

ENQUIRY FORM

PRODUCT DATA SHEETS

BROADBAND TERMINATED CURRENT TRANSFORMER 0.1Hz to 100MHz, to 50KA pulse

BROADBAND CURRENT TRANSFORMER 0.1Hz TO 2MHz, to 50KA

BROADBAND MINIATURE PCB CURRENT TRANSFORMER 10Hz to 15MHz, 100A pulse

MINIATURE CURRENT TRANSFORMERS 50Hz TO 40KHz, 50Arms

POWER CURRENT TRANSFORMERS Harmonics to 10KHz

BROADBAND TERMINATED TRANSFORMERS

58-series-1

With a broadband terminated current transformer you can accurately measure current waveforms without electrical contact to the circuit under test. Lilco Ltd has taken advantage of the availability of new resistive and magnetic materials to manufacture a range of innovative terminated current transformers (sometimes termed current monitors or current probes). These instruments are capable of faithfully reproducing current waveforms for display on an oscilloscope or capture by a data logger without electrical contact being made to the circuit under test.

They are suitable for the measurement of both sinusoidal and irregular current waveforms. Whether your requirement is to measure capacitor discharge currents of thousands of amps, power semiconductor switching performance or milliamp currents in LF or HF circuitry, one of our terminated current transformers can satisfy your requirements.

BROADBAND UNTERMINATED CURRENT TRANSFORMERS

Unterminated-Current

The company also supplies a range of unterminated ring-type current transformers (cts) with good frequency characteristics.

These components can provide an economically attractive alternative to the terminated transformer for incorporation into commercial production equipment. Some models are suitable for current injection.

Electrical isolation combined with high precision

- ideal for power electronic device and circuit development

APPLICATIONS

  • Accurate measurement of turn-on, turn-off and conducting performance in power semiconductor switches
  • Switchmode power supply design
  • Development and servicing work in power electronics
  • Lightning simulation testing of surge arrestors
  • Capacitor discharge surge testing
  • Motor controller and electronic variable speed drive development
  • Monitoring of laser tube and diode pulse currents
  • Measuring harmonics in mains power cables and for EMC testing
  • Testing to EN61000-4-1 peak inrush current
  • Current injection

PROPERTIES

  • Electrical isolation from circuit under test
  • Waveform components from 0.1Hz to 100MHz
  • Currents from 10mA to 50,000A
  • Accuracy to 1%
  • 50 Ohm output impedance
  • Sensitivities from 0.01V/A to 1V/A
  • Passive device requiring no power source
  • Minimal phase shift over bulk of operating frequency range
  • Negligible insertion resistance
  • Excellent reproduction of rectangular, pulse, sine and other waveshapes

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Updated November 2011

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