F.A.Q.

Are PROFOTECH devices compatible with secondary equipment of other manufacturers?

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Are PROFOTECH devices for outdoor installation protected against rodents?

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Which metrological supervision centers carry out the calibration of optical CT and VT?

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Are optical CT and VT used for revenue metering in Russian Federation?

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Are there any limitations for the distance between electronics unit installed in the substation control building, and a sensing optical element installed on the switchyard?

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What is the calibration interval for electronic instrument current and voltage transformers? Is there any equipment for calibration of sensors with the interface conforming to IEC 61850-9-2LE standard?

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Are PROFOTECH transformers with digital interface, conforming to IEC 61850-9-2 LE standard, included in the National register of metering devices? What accuracy class do they have?

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What is the operating life of the fiber optical current transformer? Is optical fiber exposed to aging?

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What kinds of service maintenance does PROFOTECH provide?

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