FRC
Flexible Rogowski Coil Current Transformer
Measuring range 1 A to 10000 A
Output at 1000 A 40 mV / 80 mV / 100 mV
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FRC clamp on series
Flexible Rogowski Coil Electronic Transformer
The version that stays in the panel. A thin clip around sense coil combined with a signal conditioner gives accurate true rms measurement of voltage or current, permanently wired into the installation.
- Accuracy1.0
- Phase shift90°
- Frequency range10 Hz to 10 MHz
- Linearity (10 % to 100 % of range)±0.1 % of reading
- Bandwidth2 Hz to 100 kHz
- Conductor position sensitivity±2 % maximum
- Influence of external field±2 %
- Operating temperature-20 °C to 70 °C
Product Overview
The clamp on flexible Rogowski coil current transformer is an AC current transducer for permanent installation. It combines the benefits of a thin, flexible, clip around Rogowski sense coil with a signal conditioner providing accurate true rms measurement of voltage or current.
Application Scenarios
- Permanently installed power monitoring
- Switchboard and busway metering
- High current and high frequency measurement
Technical Features
- AC current probe using the Rogowski principle
- Flexible and lightweight
- Coil length from 20 cm to 100 cm
- Suitable to measure currents from mA to 100 kA
- Easy and quick installation in an uninterruptible power line
- Simple to install where space is limited
- Coil size specified independently of the primary current
- Does not suffer from magnetic saturation
Specifications
Specification
| Parameter | Value |
|---|---|
| Accuracy | 1.0 |
| Phase shift | 90° |
| Frequency range | 10 Hz to 10 MHz |
| Linearity (10 % to 100 % of range) | ±0.1 % of reading |
| Bandwidth | 2 Hz to 100 kHz |
| Conductor position sensitivity | ±2 % maximum |
| Influence of external field | ±2 % |
| Operating temperature | -20 °C to 70 °C |
Real Product Photography
Flexible Rogowski Coil Electronic Transformer Gallery
FAQ
Questions Buyers Ask
Why is the phase shift 90 degrees?
A Rogowski coil produces a voltage proportional to the derivative of the current, which is 90° ahead of it. The integrator in the signal conditioner removes that shift; the raw coil figure is quoted because some instruments integrate internally.
Can it be left permanently installed?
Yes, this variant is specified as an AC current transducer for permanent installation.
What is the largest current it can measure?
The coil is suitable for currents from mA up to 100 kA.
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