Devices and sensors

SVG2-OW-230-3 Sensor of voltage of alternating current, three phases

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Three phase alternating current voltage sensor allows to perform monitoring in real time. Each of the three channels is connected in parallel to corresponding electrical circuit of power supply. Nominal measured voltage – 230V, maximum measured voltage – 400V.


Three phase alternating current voltage sensor allows to perform monitoring in real time. Each of the three channels is connected in parallel to corresponding electrical circuit of power supply. Nominal measured voltage – 230V, maximum measured voltage – 400V.

This is the second generation of the sensor, which came to replace the SV-OW-230-3. The measurement is performed with the use of an analog-to-digital converter at 12 bits. Measuring circuit is electrically isolated from the digital data bus of the controller.

The sensor constantly measures on each of the three channels, storing the results in its own random access memory. When the sensor data is polled, the latest results of the measurements are sent to the controller. This reduces the duration of the complete procedure of polling and obtaining of the values by the controller to a few tens of milliseconds. Each of the three channels can be polled individually.

Accuracy of the data during transmission from the sensor to the controller is ensured by the CRC algorithm (cyclic redundancy check), which protects data even in environments with high influence of the electromagnetic fields.

During the digital bus survey procedure carried out by the controller, the sensor announces to the controller each of the three channels as independent "virtual" sensors. A command is available that allows the controller to request the name of the sensor and the measurement units, allowing to reduce the setup of the sensor in the controller by pushing a few buttons on the interface.

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