Smrtr Technology
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The D-SRC is a flexible current transducer based on the Rogowski principle, particularly suitable for measurement in combination with portable devices. These coils are available in different sizes and can be supplied according to customer's design, making them versatile for applications where traditional transducers are too bulky or heavy.
Equipped with a shield against external magnetic fields, the D-SRC grants stable measurement from low currents to hundreds of kA. It provides 90° phase shift compensation and frequency equalization when connected to an electronic integrator.
| Key Advantages | Main Applications |
|---|---|
| • 12mm section grants high effective isolation • Lower zero drift down to 0.1mV • Voltage-resistant level: 36kV |
• Measuring devices & lab instrumentation • Power monitoring & control systems • Harmonics and transients monitoring • Very high current monitoring |
| Parameter | D-SRC-50 | D-SRC-100 | D-SRC-150 |
|---|---|---|---|
| Window Size | 50mm | 100mm | 150mm |
| Coil Length | 180mm | 380mm | 555mm |
| Coil Resistance | 85 ±10 Ω | 170 ±10 Ω | 255 ±10 Ω |
| Rated Current | ≤100kA | ||
| Ratio (Uncalibrated) | 60mV/kA@50Hz, 72mV/kA@60Hz | ||
| Accuracy | Uncalibrated < 5% tolerance (central position) | ||
| Operating Temp | -40ºC to 85ºC | ||
| Safety Category | 1000V CATIII, 600V CATIV | ||
| Conductor Position | Typical Error (%) |
|---|---|
| Adjacent to the center of coil | < 0.5% |
| Adjacent to the inside edge of coil | < 2% |
Installation and maintenance must be performed by qualified personnel. In high voltage circumstances, any operation is extremely dangerous. Ensure the main power supply is disconnected during installation. Do not apply around or remove from uninsulated hazardous live conductors.
Warning: Do not stress the coil with mechanical force (pressure, tight bending) as it will dramatically degrade accuracy.
