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PCIM 19 Preview - PEM's New Current Probe Offers High-bandwidth and Novel Electr


News Release


PCIM Europe 19, Nuremberg 
Hall 7- Stand 124


New Current Probe Offers High-bandwidth and Novel Electrostatic Shielding for Excellent Interference Immunity



The accompanying image can be downloaded athi-res



Power Electronic Measurements (PEM UK) Ltd will be using PCIM Europe to launch the new CWTHF current probe which offer higher frequency operation and improved E-field immunity. 


Clip-on Rogowski current probes provide a convenient, wide-bandwidth and accurate means of measuring alternating currents.  The CWTHF is the latest addition to the company's CWT range and these new wideband probes use a novel electrostatic shielded Rogowski coil to provide excellent immunity to interference from fast local dV/dt transients or large 50/60Hz voltages. The new CWTHF offers the ability to measure faster current transient rise-times, achieving a high frequency (-3dB) bandwidth of up to 30MHz for a 300mm coil and can handle a maximum current slope of over 100kA/µs. The CWTHF probes feature a robust coil of 8.5mm thickness with a 10kV peak insulation voltage.

Ideal for a wide variety of applications, including power electronics development work in today's demanding noisy high-speed applications, EMC and power quality measurement in motor drives and traction, pulsed power measurements and even lightning strike currents, the CWT is available in current ratings from 30A to 300kA, with coil circumferences of 300 to 1000mm as standard and longer available on request.


Additional technical information can be downloaded at


About PEM

Power Electronic Measurements Ltd (PEM) is an established market leader in the design and manufacture of wide-bandwidth current measuring devices based on Rogowski technology.


Founded in 1991, PEM has pioneered the general purpose wide-band Rogowski Transducer and continues to provide state-of-the-art Rogowski transducers across a broad range of applications and industries, providing advice and support to engineers with currentmeasurement challenges.


The company exports to over 35 countries worldwide and counts many of the world's leading engineering companies and research institutions as its customers. Offering a number of standard product ranges to meet a wide variety of customers' requirements, PEM also provides custom solutions, from one off designs to volume OEM products.


Editorial contact:

June Hulme
Power Electronic Measurements

Gloucester House
162 Wellington Street
Long Eaton
NG10 4HS
Tel: +44 (0) 115 9469657
Mobile: +44 (0) 7712 654009

Sales enquiries:


29 April 2019