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FRC Series Flexible Rogowski Coil

FRC is a flexible current transducer based on Rogowski principle, particularly suitable for measurement in combination with portable devices. FRC rogowski 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, FRC flexible rogowski coils 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. 

FEATURES:

1)Suitable to measure currents from A to hundreds of kA. 
2)High linearity.
3)The absence of magnetic core grants a wide frequency
   response to be suitable for measurement of harmonic
   content and transients.
4)Very useful with large size or awkward shaped conductors
   or in places with limited access.
5)Non-intrusive, no power drawn from the main.
6)Not damaged by large overloads.
7)There is no danger from open-circuited secondary.

SPECIFICATION:

TRANSDUCER

Coil length: 210mm/350mm/420mm/510mm/600mm/800mm

Inner diameter: 60mm/103mm/125mm/155mm/180mm/245mm (±10%)

Coil cross section: 6.5±0.2 mm/8±0.2 mm/10±0.2 mm

Fastening: bayonetholder

Material: thermoplastic UL94-V0

Color: coil: black, red, yellow, blue (other color could be customized) / closing unit: black

CONNECTION CABLE

Type: cable  (with 3-wire terminal) / cable + BNC/Oscilloscope Interface
Length: 3000 mm (standard), other length could be customized.
Color: black

ELECTRICAL CHARACTERISTICS
Output level (RMS): 40mV/1000A @50Hz / 80mV/1000A @50Hz / 100mV/1000A @50Hz
Accuracy: class 1.0 (coil must be calibrated with amplifier/integrator load impedance)
Linearity (10% to 100% of range): ±0.1% of reading
Frequency range/Bandwidth: approx 10Hz to 10MHz
Phase shift: 90°
Conductor position sensitivity: ±2% Maximum
Influence of external field: ±2% Maximum

ENVIRONMENTAL CONDITIONS
Operating temperature: from -20℃ to +75℃
Storage temperature: from -30℃ to +75℃ (s est normal temperature )

Safety

Working voltage(max): 1000Vrms CATIII  600Vrms CATIV

Hipot test: 7400Vrms @50/60Hz 1min.

SCHEMATIC DIAGRAM:                                              CABLE CONNECTION:

MODEL CODE:

Flexible Rogowski Coil With G1 Integrator

G1 is a USB-sized integrator, could be combined with any model and any size of FRC series rogowski coils to amplify the output signal. It’s essential to equalize and shift by 90° the output signal from the rogowski coils. It consists of an active electronic circuit with negligible offset and a good linearity. Flexible rogowski coils with G1 integrator meets customer requirements for different outputs and allows for more interfacing with more measurement devices.

SPECIFICATION:

G1 INTEGRATOR:

When you make the order, please notice what’s the input current and output voltage signal do you require. The output volt could be any one within 3V, like 333mV, 1V, 3V and so on.

Flexible Rogowski Coil With G2 Integrator

G2 is a handheld type integrator, could be combined with any model and any size of FRC series rogowski coils to achieve five current range measurement. It’s essential to equalize and shift by 90° the output signal from the rogowski coils. It consists of an active electronic circuit with negligible offset and a good linearity. The output signal can be used in oscilloscope, digital multimeter or data logger recording instrument.

SPECIFICATION:

ELECTRICAL CHARACTERISTICS

Current range：1-200A/500A/1000A/2000A/5000A; 1-500A/1000A/2000A/5000A/10000A
Output level (RMS): 1V

Accuracy: class 1.0 (coil must be calibrated with amplifier/integrator load impedance)

Linearity (10% to 100% of range): ±0.1% of reading

Frequency range/Bandwidth: approx 10Hz to 100KHz

Conductor position sensitivity: ±2% Maximum

Inuence of external field: ±2% Maximum

Output terminals: BNC plug

G2 INTEGRATOR:

When you make the order, please notice what kind of current range do you require.

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