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General| Type | Transformer Turns Ratio Tester |
|---|---|
| Frequency | 50/60 Hz |
| Interface | USB |
| Display | LCD |
| Data Storage | Internal memory for test results |
| Operating Temperature | -20°C to +50°C |
| Storage Temperature | -30°C to +70°C |
| Excitation Voltage | 8V AC |
Instructions for checking the TTRU3 upon receipt and a general overview of its features and capabilities.
Explanation of the TTRU3's ability to perform both step up and step down transformer ratio testing.
Details on different TTRU3 hardware/software configurations and available accessories.
Identification and description of components located on the top and side panels of the TTRU3.
Basic steps and safety references for getting the TTRU3 operational quickly.
Defines operator qualifications, responsibilities, and explains safety symbols used in the manual.
Covers general safety precautions and specific warnings related to input power connection.
Details on input power, output voltage/current, measurement methods, ranges, and accuracy.
Information on weight, dimensions, operating conditions, and regulatory compliance standards.
Details about the touchscreen, data storage, software, and printer output capabilities.
Criteria for selecting a suitable and safe test location.
Step-by-step instructions for connecting the TTRU3 to the transformer and power source.
Procedures for installing the TTRU3 PC software and updating it.
Steps to turn on the TTRU3 and navigate its graphical user interface.
How to configure measurement limits, transformer nameplate, and regional settings.
Guidance on setting up and initiating tests like Quick Test and Auto OLTC.
Understanding successful tests, failures, and analyzing results data and graphs.
Procedures for saving, deleting, exporting results, and integrating with PowerDB software.
A guide to identify and resolve common TTRU3 operational issues and errors.
Instructions for periodic inspection, cleaning, and annual calibration of the instrument.
Guidance on obtaining repair services and contacting Megger for support.
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