Product Details

Megger launch the new TTRU3 Transformer Turns Ratiometer

Adiradh Energy offering Megger TTRU3 transformer turns ratiometer uses a revolutionary design to perform a complete series of measurements on a transformer, including 3Ø step up turns ratio testing (patent pending). 3Ø voltage output offers numerous advantages to testing with today’s busy schedules.

The TTRU3 is an important tool for determining the mechanical condition of transformers. All ratio tests are performed in one instrument, with only one 3Ø 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.

Typical problems found using The TTRU3

• Loose connections
• Turn-to-turn shorts
• Broken Strands
• Winding deformation
• Tap changer contact problems
• Core problems

TTRU3 standard features:

• OLTC Control
• Test Plans
• Test Mode / Time – Simultaneous / 10s 3Ø
• Predictive OLTC Voltage
• Vector Rotation on Screen
• Auto Vector Recognition
• Thumb Drive Export
• AUX CAN BUS

Testing performed

• All with one instrument and 3Ø lead-set connection!
• Ratio – 3Ø Step Up testing for power transformers
• Phase shift & phase deviation
• Polarity
• Magnetic balance/flux distribution
• Excitation current characteristics
• Auto vector detection/recognition

Features and benefits

• 3Ø test voltage – fast testing of all transformers
• Patent pending 3Ø Step Up Testing
• Confirm expected nameplate vector configuration
• Ability to measure actual vs expected phase shift
• Unique kelvin clamps with adjustable 3-inch jaw
• Banana plug input for connection to terminal blocks
• Turns ratio % error vs nameplate with pass/fail
• PC interface via USB for remote control operation and downloading of test results

True-3-phase-transformer-turns-ratiometer TTRU3  video