Name: Megger TTRU1-BASIC Handheld Transformer Turns Ratiometer
SKU: TTRU1-BASIC
Price: 4465.00 USD
Availability: InStock

Handheld, battery-operated transformer turns ratiometer with optional Go/No Go and short-circuit impedance measurement capabilities

TTRU1-BASIC includes:
37.5 VAC induced handheld turns ratiometer test set with 2m (6ft) H and X Leads

Highly accurate in a wide temperature range, ensuring adaptability to diverse working conditions: 0.05 % accuracy from -20 °C to 50 °C
Configurable vector lists for testing efficiency: Simplifies testing of frequently tested transformer configurations
Powered by a rechargeable battery for maximum portability and flexibility: USB-C charging for included NiMH batteries
Go/No Go open-circuit, short-circuit, and inductance tests for a prompt diagnosis: Quick pass/fail evaluation of primary and secondary windings
Short-circuit impedance measurements conveniently bundled with a ratiometer: Verification to nameplate values to ensure there are no signs of winding deformation

The TTRU1 is the latest handheld transformer turns ratiometer from Megger. In addition to routine polarity validation and turns ratio tests, the TTRU1 can measure short-circuit impedance (leakage reactance) with the same one-time connection.

Guided by color-coded leads, clamps, and customizable on-screen vectors that match the transformer nameplate under test, the easy-to-follow setup ensures the right result the first time.

Perform up to 1000 turns ratio tests on a single NiMH AA battery charge. When it’s time to recharge the batteries, connect to any standard USB wall charger, or connect to your PC. When connected to the PC, TTRU1-EXP results can be downloaded, and the user guide and data sheet can also be accessed.

FAQ/Frequently Asked Questions

Can the TTRU1 be used to test transformers with similar configurations?

The ADV, PRO, and EXP model TTRU1 can save up to 10 user-defined transformer vectors with winding voltages identified by a custom ID. After saving a custom vector, common transformer types in a system can easily be recalled, ensuring proper evaluation of results.

What types and sizes of transformers can the TTRU1 test?

The TTRU1 excels at testing single phase distribution transformers but can also be used for testing power transformers. With up to 250 V AC induced, the TTRU1 overcomes inaccurate results due to voltage dependence by using the patented step-up ratio testing method to test any size transformer.

How are the results managed on the TTRU1?

All models of the TTRU1 automatically save results when a test is complete. Results can be exported to excel and PDF using a USB drive. For customers who need a physical copy of results, an optional USB printer is available. The ADV, PRO, and EXP models provide an additional export file for importing into PowerDB (coming soon). The PRO and EXP models offer on-screen results navigation so you can review results on site.

Can the TTRU1 test three-phase transformers?

The TTRU1 is primarily designed for testing single-phase transformers but can also be used on three-phase transformers. The ADV, PRO, and EXP models will guide you through three-phase transformer testing with on-screen connection diagrams, providing confidence in test setup and results evaluation.

TTRU1 Cut Sheet