Megger TTR300 Series: Hardware Description and Overview

This video provides a hardware description and overview of the Megger TTR300 Series of 3-Phase Transformer Turns Ratio Test Sets. Knowing key specifications and panel controls will allow you to effectively measure the turns ratio of all types and sizes of transformers across multiple applications.

The TTR300 Series of 3-phase Transformer Turns Ratio Test Sets is designed to measure the turns ratio of power, instrument, and distribution transformers in a substation or manufacturing environment. 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. This test also includes a pass/fail limit of individual ratios.

The TTR300 Series 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. This measurement is also useful in verifying phase errors in all types of PTs and CTs. The TTR300 Series is ideal for use by power transformer manufacturers as well.

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