Rogowski Coil Sensors

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Rogowski coil Sensors are applied to electrical devices that measure up to thousands of amp AC (alternating current) for power meters, energy sub meters, condition monitoring, power quality monitoring as well as distributed measurement systems and current spike detection. No iron or other metal core is involved in the construction. What is critical is the diameter of the coil, the winding density and the rigidity of the winding, which help to preserve immunity to the various external fields

Rogowski Coil Sensors Application

  • Smart Recloser on Distribution Line
  • Electronic Sectionalizer
  • High Current Energy Meters & Protection Relay
  • Harmonics Measurement Sensors
  • Air Circuit Breakers & Smart Reclosers
  • Gas Insulation Switch Gear
  • AC Component Fault Detector out of DC Current
  • High Frequency High Current Measurements
  • High Current Welding Machines

Rogowski Coil Sensors General Features

  • Compliant to IEC 61869-2
  • Perfect Immunity to DC external magnetic field
  • High Current Coverage without Saturation
  • Operating Frequency unto 1MHz or 3MHz
  • Intrinsic Frequency Linearity
  • High Potential Voltage: 4kV per min
  • RoHS Compliant

Rogowski Coil Sensors Test Conditions:

  1. Mutual Inductance Value Applied upon the Primary 100A
  2. Max Stray Noise Output Voltage (Vo) based on External Magnetic Field 0.5mT
  3. Burden Resister: 1MΩ

Electrical Properties ( I )

High Current & High Frequency Measurement Rogowski coil Sensor

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Specification

f: 50Hz
Model NO DCR(Ω)
±6%
Rated
Current(A)
Max
Current(KA)
Self
Current(KA)
Mutual
Inductance
Max Stray
Noise Vo
Max Multual Inductance Erro(%) Output Voltage at 100A Instant Peak Amp(KA)
TR77V/L 100Ω 1000Ω 10kA 0.7mH 0.69µH 1.3mV 0.60% 21.6mV 64kA
TR71V/L 181Ω 9kA 7.6mH 3.25µH 0.3mV 0.03% 102.2mV 54kA
TR71VA 13.5Ω 13kA 0.4mH 0.80µH 0.3mV 0.12% 25.0mV 81kA
TR10VSH
TR10LSH
TR10LSC
173Ω 6kA 5.8mH 2.13µH 0.6mV 0.09% 66.9mV 39kA
TR9L 200Ω 6kA 20.9mH 4.48µH 4.0mV 0.28% 140.8mV 40kA

Drawing

PCB Mountable Type Wire Lead Type Electrical-Properties_graph

Dimension

unit: mm
Model NO A(min) B(max) C(max) D(max) E(±0.3) F(±0.3) G(±0.5) H(±0.3)
TR77V 6.8 25.0 11.0 23.5 15.1 19.1 3.0 9.1
TR77L 6.9 23.6 11.0 26.8 7.1 71.0 3.0
TR71V 8.9 27.5 17.0 25.3 15.1 19.1 3.0 15.1
TR71L 8.9 24.8 17.0 28.4 7.6 65.0 3.0
TR71VA 8.9 27.7 20.3 25.3 15.1 9.0 3.0 4.0
TR10VSH 12.9 39.3 14.0 38.0 25.2 32.8 3.0 12.1
TR10LSH 12.9 37.5 14.0 41.3 10.3 240.0 5.0
TR10LSC 12.9 37.5 14.0 46.8 14.9 381.0 5.0
TR9L 19.6 48.2 19.2 52.0 13.2 270.0 5.0

Electrical Properties ( II )

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Specification

f: 50Hz
Model NO Current Rating(A) Primary Current Output V at Primary Max Current(kA) Self Inductance Mutual Inductance Max Stray Noise Voltage Max Mutual Inductance Error(%)
TR1L 630A 63A 16.97mV 55kA 1.72mH 0.856µ 0.3mV 0.18%
TR2L 1000A 100A 44kA 0.69mH 0.54µ 0.18%
TR3L 1250A 125A 51kA 0.43mH 0.43µ 0.18%
TR4L 1600A 160A 60kA 0.26mH 0.34µ 0.18%
TRLS 1000A 100A 10.1mV 55kA 0.69mH 0.32µ 0.18%
TR5L 2000A 200A 16.97mV 90kA 0.32mH 0.27µ 0.18%
TR6L 2500A 250A 120kA 0.22mH 0.22µ 0.18%
TR7L 3200A 320A 120kA 0.13mH 0.17µ 0.18%
TR8L 4000A 400A 90kA 0.33mH 0.14µ 0.18%

Drawing

Round Type (TR1L-TR4L) Track Type TRLS Electrical-Properties2-graph

Dimension

unit: mm
Model NO A(min) B(max) B'(max) C(max) D(max) E(max) F(±7) G(±1)
TR1L
TR2L
TR3L
TR4L
53.0 75.0 48.9 12.5 76.5 31.5 300.0 5.0
TRLS 50.6 64.0 10.9 7.5 24.7 16.2 300.0 5.0
TR5L
TR6L
TR7L
TR8L
98.0 119.0 54.4 11.0 76.0 31.5 300.0 5.0

Self Powered (Energy Harvesting) Rogowski Sensors

Energy Harvesting & Measurement Sensor

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Drawing

(For Circuit Breaker Monitoring)Harvesting Power: Min 3Watts

Self-Powered-Energy-Harvesting-graph

Dimension

unit: mm
A(min) A'(max) B(max) C(max) D(max) F(±3.0) G(±1.0)
46.3 10.2 73.3 33.2/td> 51.3 150 5.0

Electrical Properties

Harvesting Power Rating Output Self Inductance Mutual Inductance Max Mu Error
min 3Watt 1000A 0.1mV/A 0.69mH 0.32µH 0.30%