Megger (AVO Biddle) TTR330A
Three Phase Transformer Turns Ratio (TTR) Test Set

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Product Overview

RENT Megger TTR330A Three Phase Transformer Turns Ratio Test Set (Call for Availability)

    The Megger TTR330A is ideal for use by power transformer manufacturers. Their unique testing procedures and storage capability allows an operator to set up and test difficult three-phase transformers (with multiple tap changers and bushing CTs) in a fraction of the time than it used to take with other TTRs. It is designed to measure the turns ratio of power, instrument, and distribution transformers in a substation or manufacturing environment. The TTR330A also measures the phase deviation of the transformer primary versus secondary. This quickly indicates problems in the transformer such as partial shorted turns and core faults.

    The Megger TTR330A is equipped with an industrial grade, 12-in. touch controller. The display is designed to operate in direct sunlight, and all the components are rated to operate from -20°C to +50°C.  An additional feature that has been added to the TTR330A is the “safety shutdown” which automatically saves results and properly shuts controller down in the event of an abrupt power disruption. It stores up to 100,000 data sets in the field for later retrieval. Test results can be printed via the built-in 2-inch printer, or the data can later be downloaded to a PC for archiving, analysis and/or printing.

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