MFC140-UI SERIES
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Rogowski CoilsMFC140-UI seriesUL 2808 07 mm flexible Rogowski coil LISTED Rogowski Coils • Two available models: with or without integrator • For outdoor use • Suitable to measure currents from A to several kA • High linearity • Very useful with large size or awkward shaped conductors or in places with limited access • Not damaged by overloads • Non-intrusive, no power drawn from the main • Thanks to its light weight, it can be changed on the measured conductor • Totally shielded • UL 2808 certified » Strong points • Delivered already calibrated • Very thin coil diameter: down to 7 mm • Provided with an accessory to secure the coil to the busbar • Measurement uniformity at any position of the conductor inside the coil • Excellent degree of rejection to the external current conductor • Possibility to seal the locking of the coil » General description MFC140-UI is a flexible current transducer based on Rogowski principle, particularly suitable for measurement in combination with devices. MFC140-UI coils are available in different sizes and can be supplied according to customer's design, therefore they can be used in all those applications, in which traditional transducers are not fitting due to its size and/or weight. Due to its specific features, flexible Rogowski coil is an extremely confortable solution for current measurement and can be used in a number of cases where traditional current transducer is not the adequate solution. MFC140-UI coil is provided with a shield against the influence of external magnetic fields, therefore it grants a stable measurement from low currents to several kA. MFC140-UI can be also provided with built-in integrator, without needing of external devices for 90° phase shift compensation and frequency equalization. This is an advantage because there is no external box with consequent ease of use. MFC140-UI with built-in integrator can be connected to devices with differential input only. The particular features of the Rogowski coils combined with the extremely flexible input programming of our meters, allow to carry out measurement by all applications. Applications • Measuring devices, lab instrumentation • Power monitoring & control systems • DC ripple measurement • Harmonics and transients monitoring • Very high current monitoring • Due to its structure, flexible Rogowski coils allows to embrace conductors or grouped cables, which are large and difficult to reach, without any hazard. • The coil output gives a low voltage signal, therefore there is no danger from open-circuited secondary. This makes Rogowski transducers extremely suitable for temporary measurements, for example in combination with analysers. • Unlike traditional current transformer with magnetic core, the Rogowski coil is a non-intrusive transducer. Since it has no hard core, it draws no power from the main circuit carrying the current to be measured. • The absence of magnetic core grants a wide frequency response. This make MFC140-UI particularly suitable for measurement of harmonic content and transients. algodue* '^ELETTRONICA Innovative Electronic Systems

Rogowski Coils » Available models MODEL Built-in INTEGRATOR » What is a Rogowski coil? Rogowski coils have been used for the detection and measurement of electric currents for decades. They are based on a simple principle: an “air-cored” coil is placed around the conductor in a toroidal fashion and the magnetic field produced by the current induces a voltage in the coil. The voltage output is proportional to the rate of change of current. This voltage is integrated, thus producing an output proportional to the current. By using precision winding techniques, especially developed for the...

COIL Coil length: Sensor internal diameter: Cord diameter: Jacket material: Fastening: Weight: 15 ... 50 cm 4 ... 15 cm 7.2 ±0.2 mm Polyphenylene and thermoplastic elastomer Bayonet holder 150 ... 500 g Nominal output rate: Max measurable current: Coil resistance: Accuracy: Frequency: Maximum primary voltage: Pollution degree: Insulation test voltage: 120 mV / kA @ 60 Hz (RMS values) 100 mV / kA @ 50 Hz (RMS values) 600 A with 15 ... 28 cm coil length 2500 A with 29 ... 41 cm coil length 5000 A with 42 ... 50 cm coil length 170 ... 690 Q Class 1-A1 according to IEC 61869-10 50/60 Hz 600 V...

To be indicated together with the selected order code from the list above. NOTE: Subject to change without notice algoduef '“'ELETTRONICA Innovative Electronic Systems Via P Gobetti, 16/F - 28014 Maggiora (NO) - Italy - Tel.: +39 0322 89307 sales@algodue.it - www.algodue.com 82PG01_2_202