Megger (AVO Biddle) TTRU3
True 3 Phase Transformer Turns Ratiometer

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Product Overview

RENT MEGGER TTRU3 3 Phase Transformer Turns Ratiometer (Call for Availability)

The Megger TTRU3 transformer turns ratiometer uses a revolutionary design to perform a complete series of measurements on a transformer, including 3-phase step up turns ratio testing. All ratio tests are performed in one instrument, with only one 3-phase lead-set connection. The TTRU3 utilizes the latest 7 in. (180 mm) color touch display, as well as an optional printer so results are never lost. This is complimented with remote control which can be operated from a PC, as well as the ability to download results to a USB memory device. 

The Megger TTRU3 is designed to test ALL power, instrument, and distribution transformers without the need of traditional high voltage excitation. With 3Ø excitation, testing is up to five times faster than previous phase-by-phase switching single instruments, and errors due to loading of delta secondary and tertiaries are problems of the past. The Megger TTRU3 handles each phase displacement as easily as standard 3Ø transformer configurations. Phase shift measurement results can now be compared to expected phase shift for all three phases independently. The intuitive user interface of the TTRU3 uses large, self-explanatory buttons that lessen the need for exhaustive operator training. 

Features of the MEGGER TTRU3 3 Phase Transformer Turns Ratiometer Include:

• Guaranteed accuracy ±0.05% from -20°C to +50°C
• 3Ø test voltage - up to 250V
• 3Ø step up ratio (patent pending)
• Phase shifting and zig-zag transformers tested easily and accurately
• Smallest/lightest 3Ø test set on the market
• Fast 3Ø tests - less than 10 seconds

See Datasheet for full specifications