Smrtr Technology
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| Model NO. | STP/NRC-60 |
|---|---|
| Production Process | Integration |
| Material | Metal |
| Accuracy Grade | 0.5G |
| Application | All Electronic, Electrical, Electric Related Cases |
| IP Rating | IP67 |
| Certification | CE |
| Customized | Customized |
| Window Size | 100, 150, 200mm |
| Reference Rated Current | 1000A, 3000A, 6000A |
NRC is a flexible current transducer based on Rogowski principle, particularly suitable for measurement in combination with portable devices. NRC coils are available in different sizes and can be supplied according to customer's design, making them ideal for applications where traditional transducers do not fit due to size or weight constraints.
| MODEL | NRC-100 | NRC-150 | NRC-200 |
|---|---|---|---|
| Coil length | 395mm | 525mm | 665mm |
| Window size | 100mm | 150mm | 200mm |
| Rated current | 1000A | 3000A | 6000A |
| Coil Resistance | 260 (+/-10) Ω | 320 (+/-10) Ω | 390 (+/-10) Ω |
| Weight | Approx. 140g | Approx. 150g | Approx. 170g |
| Read Accuracy | Calibrated <0.5% (central position, 25ºC) | ||
| Current Range | 0.5-100kA AC | ||
| Bandwidth | 1Hz to 100kHz (-3dB) | ||
| Coil & cable | Thermoplastic rubber, flame retardant UL 94 V-0 rated |
|---|---|
| Couplings | PC, ABS UL 94 V-0 rated |
| Safety Rating | 1000V CATIII, 600V CATIV |
| Insulation | Coil: 2000V; Signal cable: 1000V |
| IP Rating | IP67 |
Rogowski coils are air-cored coils placed around a conductor in a toroidal fashion. The magnetic field produced by the AC current induces a voltage in the coil proportional to the rate of change of current. This voltage is integrated to produce an output proportional to the current.
Unlike traditional current transformers, they have no iron core, meaning there is no saturation. This allows for accurate measurement of AC components even with large superimposed DC components, making them ideal for ripple current measurement in battery systems.
