Alternate current Rogowski coil sensor
The KET-RSR-400 coil sensors Rogowski allow you to measure currents up to 4000 A in a smaller footprint and at a lower cost than normal openable current transformers.
The KET-RSR-400 are manufactured in Italy to Kerberos specifications.
Each sensor is individually wrapped in a high-precision numerical control process. Class 1 calibration is obtained by construction, without calibration resistance.
The KET-RSR-400 sensors are compatible with the KET-PMT-310 three-phase network analyzer.
GENERAL SPECIFICATIONS
| Protection Range | IP52 |
| Operative Temperature | -20 ÷ +70 °C |
| Relative Humidity | MAX 85% not condensing |
| Max Conductror Diameter | 115 ÷ 279 mm |
| Coil Diameter | 139 ÷ 299 mm |
| Coil Lenght | 400÷ 900 mm |
| Cable Lenght | 2 m |
| Material | RUBBER thermoplastic, PA6, self-extinguishing: UL 94 V-0 |
CURRENT SENSOR
| Maximum Measurable Current | 20 ÷ 4000 A |
| Internal Resistance | 30 Ohms / 400 mm |
| Accuracy | ±1% |
| Linearity | ±0.2 |
| Output Level (RMS) | 100 mV/kA @50 Hz |
| Frequency Range | 45 ÷ 65 Hz |
| Maximum Working Voltage | Cat. III 1000 V @ 50/60 Hz; Cat. IV 600 V @ 50/60 Hz |
| Hi Pot Test | 7.4 kV ac for 1 minut |
CERTIFICATIONS
| Referends Standard | EN61010-1 |
| Approvals | CE, cRUus |
| Security | 2014/35/EU (LVT - Low Voltage) |
Available Models
| Codice | Primary Current | Ø Max Conductor | Ø Outside Coil | Cable Lenght | Coil Lenght |
|---|---|---|---|---|---|
| KET-RSR-400.40 | 20 ÷ 4000 A | 115 mm | 139 mm | 2 m | 400 mm |
| KET-RSR-400.60 | 20 ÷ 4000 A | 179 mm | 203 mm | 2 m | 600 mm |
| KET-RSR-400.90 | 20 ÷ 4000 A | 275 mm | 299 mm | 2 m | 900 mm |
Reading Power Meter with Rogowski
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