CT9557 Features Sum Functionality for Aggregating and Measuring Large Circuits in Multi-Cable CircuitsHioki is pleased to announce the launch of three sensor units: Models CT9555, CT9556, and CT9557. Hioki Launches Three Sensor Units High Precision Current Sensors The CT9555 is two-thirds smaller than the legacy sensor unit by volume, while the CT9556 provides RMS output capability. Meanwhile, the CT9557 features aggregate functionality to facilitate the measurement of large currents in multi-cable circuits. ROLE OF SENSOR UNITS Hioki’s high-precision current sensors cannot be used on their own; instead, it is necessary to supply power to drive the sensor using one of these newly launched sensor units. Furthermore, since the sensor units are able to output waveform signals from the current sensors to which they are attached, they can be used in conjunction with a data recorder, power meter, or data logger to display and analyze those waveforms. PRODUCT FEATURES CT9556 *RMS values: The strengths of AC current and voltage are not constant, but rather vary periodically with time. Consequently, the meaning of an RMS value can be expressed as follows: the RMS value expresses the strength of an AC voltage (current) as the DC voltage (current) at which a given resistance would consume the same amount of power as when the corresponding AC voltage (current) flows through it. The voltage used to describe household electrical outlets in Japan (100 V AC) is an RMS value. CT9557 2. Aggregate function for measuring large currents in multi-cable circuits in megasolar installations The CT9557 delivers the ability to add together the signal waveforms from multiple current sensors in such applications. Since the current values measured for each branch cable are added together inside the CT9557 and output as a single signal, the troublesome addition process becomes unnecessary, and instruments need only use one channel of input. One application of this aggregate functionality is to simplify measurement of leakage currents in three-phase circuits. PRINCIPAL APPLICATIONS More information: TMetrix
Hioki Launches Three Sensor Units High Precision Current Sensors
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