Description:
Flexible toroidal transformerThe coils can be opened at the connector joint and installed onthose to be
Flexible Rogowski Coil
FCT is a flexible current probe utilizing the Rogowski principle,which is suitable to conveniently measure single and three phase ACas well as pulsed DC currents. After appropriate signalconditioning, it can be used with digital multimeters, recordersand other suitable equipment to measure current from very lowfrequencies up to 1MHz.
The probes comprise a flexible air–cored sensorwhich can be opened, allowing them to be installed around a primaryconductor without interrupting the circuit. The flexible andlightweight measuring head allows quick and easy installation inhard to reach areas and with largeconductors
Available Models
| Model | Category | Advantages | |
| FCT | Normal | Length is up to 20m. Suitable for metallurgycurrent detection, the detection of leakage current from the superlarge equipment to the ground and so on | |
| FCT-A | Highaccuracy | Accuracy upto 0.2%. Excellent anti-disturbance, temperature drift andstability. | |
| FCT-F | Superflexible | Suitable for irregularconductor detection, such as the detection of S type output end oftransformer. | |
| FCT-H | Hightemperature tolerance | Temperature tolerance: longtime for over 150°, short time for over 200°. Can be used in wateror oil. | |
| FCT-M | Minirogowski coil | Diameter of the coil isdown to 4mm. Suitable for current under 1000A, and application witha limitation of space. | |
| FCT-S | Highsensitivity | Output up to 1V/100A.Suitable for leakage/zero-sequence detection, mA level currentdetection, low-frequency signal (<5Hz) detection | |
| FCT-T | Thicker | High voltage tolerance. Noteasy to deformation. Suitable for high voltage, high temperature,and outdoor application. | |
Technical Specification
Basic Frequency | 10Hz .. 10kHz | Weightof Electronics | Approx. 100g |
| WorkingFrequency | 0.8Hz ..10MHz | Transfer RatioM | 0.05 .. 10μH |
| Linearity | <0.01% | Sensitivity | Output voltageVout=2×π×M×f×IAC |
| f=frequency IAC=current to bemeasured | |||
| Measuring Range (crest factor<1.5@Basic Frequency) | 0.01 .. 300kA | PhaseError | 90°±0.1° |
| SensorCable Length | 200mm ..10m | ||
| LoadResistance | ≥1kΩ | SensorCable Diameter | 4mm ..20mm |
| OperatingTemperature | -10 .. 60°C | SignalCable Diameter | 2.0 ..5.0mm |
| Storage Temperature | -20 .. 70°C | SignalCable Length | 0.1m ..100m |
| OutputConnection | Banana Plug Pair OutputConnection | ||
| BNCOutput Connetion | |||
| OEMCable Output | |||
| Calibration Kit | |||
| Special Cable Lengthsand/or Gains on request | |||
Ordering Information
| FCT-cate-abc-xyz | |||
| cate…… category, refer to availablemodels. e.g. M=mini rogowskicoil | |||
| abc…… 3 numbers stand for current range. e.g.203=2*103=2000A | |||
| xyz…… 3 numbers stand for coillength. e.g. 600=600mm | |||
| For example: anFCT-M-203-600 has a current ranges of 2000A and a 600mmcircumstance mini rogowski coil. | |||
| Custom length, color, sensitivityand other parameters are available. | |||
The FCT is anideal replacement for medium/large current, currenttransformers(CT’s) and has the advantages that it is:
Suitableto measure currents from mA to hundreds of kA
Wide dynamicrange
Very usefulwith awkward shaped conductors or in places with limited availablespace
No danger fromopen-circuited secondary
Not damaged bylarge overloads
Non-intrusive,no power drawn from the main
Thanks to itslight weight, it can be hanged on the measured conductor
Applications
Measuring devices, labinstrumentation
DC ripple measurement
Analysis of harmonics, powermeasurements
Very high currentmonitoring
Measuring starting transients ofelectric motors
Sudden short circuittesting
Protection system for slip-ringinduction motors
Measuring the currents flowing inthe framework of a large generator
Shaft Currentmeasurements
Measuring the current inElectromagnetic Launchers
Monitoring the current in railwaylines to check signaling currents
Arc furnace currents
High-current testing ofswitch-gear and fuses
Measuring leakage currents downinsulators
Certification
Typicalcases
1. Applicationto electricfurnace
2. Application to high-voltage transmissionand distribution
3. Application to powerquality analysis
TechnicalParameters
| Coil length | 200mm~10m |
| Frequency | 1HZ~100kHz |
| Current | 50mA~300kA |
| Accuracy | Accuracy of reading (10%~100%F.S.) Upto 0.3% |
| Angle deviation 90°±0.2° |
Thesignal line of the coil is wear resistant, shielded, coaxial anddouble layer cable with secure BNC connector. Our rogowski coilsupports FLUKE, CA, HIOKI and various brands, and it is the idealcurrent probe of other related power quality products. Rogowskicoil is often used to measure the following parameters: Arms,THDA%f, Aharm, Areac, kW, kVA, kVARQf, kVARD, PF,cosφ(DPF)and soon.
Tel: (86)21-64850006 Fax :(86)21-64850006 Web: http://en.meatrol.cn
Add: unit 66, No.388, Du Shi Road, Min hang District, ShanghaiChina
