罗氏线圈CWT Specification 英国PEM

　　The CWT from Power Electronic Measurements Ltd.is a state of the art wide-bandwidth ac current probe.

　　The CWT is ideal for power electronics development work because it combines an easy to use thin, flexible, clip-around coil with an ability to accurately replicate fast switching current waveforms be they sinusoidal,quasi-sinusoidal or pulsed.

　　Applications

　　● Monitoring current waveforms for semiconductor switches

　　● Development and servicing of power electronic equipment

　　● Monitoring high frequency sinusoidal currents

　　● Measuring fault currents or circuit breaker interruption currents

　　● Measuring pulses of current

　　● Measuring ac currents superimposed on large dc currents

　　● Measuring harmonic current components

　　● Measuring signal or earth leakage currents in 3-phase supply systems

　　Features

　　● Measurement range from 300mA to 300,000A

　　● Typical bandwidths from 0.1Hz to 16MHz

　　● The DC offset is no greater than 2mV over the operating temperature range.

　　● Thin and flexible, 'clip-around'coil in lengths from 300mm to 1000mm - other lengths available as custom designs

　　   ◆ Easy to insert probe in confined spaces

　　   ◆ Robust lockable 'clip-in’ mechanism

　　   ◆ Non-intrusive - loading the circuit under test by only a few pH

　　● Coil peak voltage isolation capability up to 10kV

　　● lnstantaneous +6V peak to peak output to plug directly into scope, data acquisition equipment, DVM or power recorders

　　● CE Marked

　　● Accuracy of ±1% of reading