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TTR.901C Transformer Turns Ratio Meter

The TTR.901C is a precision Transformer Turns Ratio Meter designed for medium to large transformers. It performs ratio and voltage ratio testing in full compliance with IEC60076, ensuring reliable and accurate measurements for both single- and three-phase transformers.

With its integrated LCD display, onboard data storage, and built-in micro printer, the TTR.901C simplifies transformer testing and reporting. The system is lightweight, efficient, and equipped with auto protection features, making it ideal for both field and laboratory use.

Key Features

  • Fully compliant with IEC60076 (turns ratio & voltage ratio)

  • Accurate ratio measurement from 1–10,000

  • Supports both single-phase and three-phase transformer testing

  • Large LCD for real-time data display

  • Built-in data storage and micro printer for quick reporting

  • Lightweight and portable (5.9 kg) with lithium-ion battery pack

  • Auto protection for safe and reliable operation

Technical Specifications

Ratio Measurement Range

  • 1 – 10,000

Test Voltage

  • 0 – 240 VAC

Group Measurement

  • 1 – 11

Phase Measurement Error

  • ±1°

Ratio Measurement Error

  • 1–2000 ±0.2%

  • 2000–10,000 ±0.5%

Power Supply

  • AC 220V ±10%, 50Hz

  • Lithium-ion Battery Pack Included

Size

  • 400 × 350 × 200 mm³

Weight

  • 5.9 kg

Standard Accessories

  • TTR.901C Instrument – 1

  • User Manual – 1

  • Micro Printer Manual – 1

  • Test Cables – 2

  • Power Cable – 1

  • Ground Cable – 1

  • Pass Certificate – 1

  • Inspection Report – 1

  • CD Disk – 1

  • Fuses – 2

  • Test Lead Case (Moulded Plastic) – 1

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