Rogowski coil

Rogowski coil

Rogowski coil uses open-loop structure, can be used to measure the large size (conductor dimension≥3m), out-of-shape or narrow conductor current.

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Overview


Rogowski coil uses open-loop structure, can be used to measure the large size (conductor dimension≥3m), out-of-shape or narrow conductor current (especially when traditional forcipate current probe can’ t measure the current, flexible rogowski coil current sensor can do it conveniently). Lead wire which passed through by tested current can across coil without cut. It can sense the current in rogowski coil, and measure the current in tested wire.

Application

●    Power meters
●   Energy sub-meters
●   Power quality monitoring
●   Condition monitoring
●   Distributed measurement systems.
●   Lighting current
●   Electric furnace
●   Harmonic management
●   Relay Protection

Specification

Current range(rms) 0-50000A AC
Output signal(di/dt) 144 mV/1000A @ 60 Hz
  120 mV/1000A @ 50 Hz
Accuracy(typ.) ±0.5% of reading(most
  accurate position, 25℃)
Linearity (10% to 100% of range) ±0.2% of reading
Bandwidth (-3dB)   2Hz to 100kHz
Output sensitivity tolerance ±2%
Max. Response time(10 to 90%) 1us
Phase error ≤1%
Conductor position sensitivity ±1% of reading
Operating temperature -20℃to 70℃

Model

Rated
current (A)
 Coil
Length (mm)
Cable
Length (m)
Color
250A  300mm 1m Black
500A 520mm 2m Yellow
900A 800mm 3.5m Red
Green
50000A Custom lengths  Custom lengths  Blue

 
For example: FCT-1000-300-1-B means this rogowski coil has a rated primary current 1000A, 300mm coil , 1m cable and it is black.