Yokogawa Launches CT500SA and CT200SA AC/DC Split Core Current Sensors
TECHWORLD ·
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Korea Yokogawa Electric said it will launch the AC/DC split core current sensors CT500SA and CT200SA.
The two products adopt a Fluxgate sensor architecture to support high-precision high-current measurement even in confined spaces, with a basic accuracy of ±0.09% reading + 0.01% full scale.
The CT500SA supports a bandwidth of up to 500kHz (-3dB), while the CT200SA supports up to 1MHz (-3dB), and they can be connected directly to Yokogawa power analyzers, ScopeCorders, and oscilloscopes.
As the expansion of electric vehicle (xEV) adoption and the advancement of renewable energy infrastructure drive greater demand for energy efficiency verification, demand among engineers for current measurement without disconnecting wires inside complex assembled equipment is surging. However, conventional split core current sensors have had structural limitations and drawbacks in precision. Korea Yokogawa Electric said it will launch the AC/DC split core current sensors, "CT500SA" and "CT200SA."
"CT500SA" and "CT200SA" are AC/DC split core current sensors that can measure high currents with high precision even in confined spaces, and they are next-generation sensors designed to overcome the technical limitations of conventional split core current sensors. The CT500SA has a rated current of 500 A, and the CT200SA has a rated current of 200 A. Both products adopt a Fluxgate sensor architecture, retaining the convenience of the existing clamp-on method while delivering accuracy comparable to Through-hole sensors.
The basic accuracy is ±0.09% reading + 0.01% full scale. Korea Yokogawa Electric said the CT500SA and CT200SA go beyond existing limitations and combine convenience with high accuracy.
The two products share the same dimensions of 110 mm wide, 62 mm high, and 25 mm deep, with a palm-sized design tailored for test environments inside vehicles where space is limited. They feature a one-touch release button, making attachment and removal easy with one hand, and the body includes M4 screw holes and cable tie slots. The company said fixing the sensor position can reduce measurement errors and improve repeatability.
The CT500SA supports a frequency bandwidth of up to 500kHz (-3dB), while the CT200SA supports up to 1MHz (-3dB). The two products were presented as suitable for precise output current measurement in motor inverter verification, and the measured elements include switching frequency and harmonic components.
Previously, sensors were divided into models dedicated to power analyzers and those dedicated to waveform measuring instruments, but the two products were highlighted for not requiring a separate conversion connector. As a result, they can be connected directly to Yokogawa power analyzers, ScopeCorders, and oscilloscopes.
Yokogawa said it expects the new products to significantly improve engineers' work efficiency in test environments where cable cutting and equipment disassembly are difficult, and explained that based on this, the products can be used as an optimal solution for analyzing electric vehicle inverter efficiency, monitoring output in photovoltaic (PV) systems, and for large HVAC systems, targeting industrial sites that require precision power measurement.
Source: TECHWORLD · Lee Gwang-jae
Original: https://www.epnc.co.kr/news/articleView.html?idxno=406608
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Source: TECHWORLD
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