Description
Inside a motor-drive cabinet, cables and bus bars sit close together. A rigid jaw rarely finds room there. The Tektronix TRCP0600 Rogowski probe solves that with a flexible loop. In plain terms, a Rogowski probe is an air-core coil that wraps around a conductor and senses AC current through the field it creates. Lost in HCM rents and sells this model in Vietnam.
Key data at a glance
- AC only, from 12 Hz to 30 MHz.
- 600 A peak, which is not an RMS rating.
- Output of 10 mV per amp into a 1 MΩ BNC input.
- Smallest listed current of 500 mA.
- Coil cross-section of 4.5 mm.
- Accuracy within ±2% of reading, typical.
Because the loop senses only change, a steady DC part of the current never shows up. So if you need the DC level as well, pick a Hall-effect clamp instead.
Why the Tektronix TRCP0600 Rogowski probe suits drive work
With 30 MHz at the top end, the probe keeps up with fast switching in modern inverters. At the same time, 600 A peak covers the phase currents of many mid-size drives. The thin loop also threads between parts where a clamp would not close. As a result, engineers can measure without moving cables or stopping to fit a shunt.
Typical users
R&D teams use it on inverter bridges, power modules and EV chargers. Meanwhile, test engineers on a factory floor use it to compare a good drive with a faulty one. It also helps service teams who study UPS units and large power supplies on site.
Set-up tips
First, set the scope input to 1 MΩ and enter 10 mV/A as the probe factor. Next, wrap the loop around a single insulated conductor and close it the way the manual describes. After that, connect the electronics to their specified power source. Also confirm the voltage category, and shut the circuit down wherever the manual asks.
Requesting the probe
Rent it for a drive project, a field service trip or a short trial. Alternatively, buy it if your lab tests drives every week. To begin, request a quote from Lost in HCM. Mention your scope model, the peak amps, the frequency band and the cable size. You can also compare other probes in the oscilloscope probes category, check Tektronix for the full manual, or contact SMK Vietnam.
TRCP0600 questions
How do I scale the Tektronix TRCP0600 Rogowski probe on my scope?
Set the input to 1 MΩ and the probe factor to 10 mV/A. The trace then reads in amps.
Does it work at 50 Hz mains frequency?
Yes. Its range starts at 12 Hz, so 50 Hz sits inside it. It still cannot show a DC offset, though.
How small a current can it see?
The source lists 500 mA as the minimum. For smaller currents, a Hall-effect clamp may suit you better.
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