The TTR300 Series of three-phase transformer turns ratio test sets are designed to measure the turns ratio of power, instrument, and distribution transformers in a substation or manufacturing environment. A rugged and robust design makes these instruments well suited for use in a variety of harsh environments. Our leads are specially designed to provide the necessary flexibility needed in cold weather.
The TTR300 Series are ideal for use by power transformer manufacturers. Their unique testing procedures and storage capability allows an operator to set up and test difficult three-phase transformers (with multiple tap changers and bushing CTs) in a fraction of the time than it used to take with other TTRs. This test also includes a pass/fail limit of individual ratios.
| Key Features |
| Stand-alone or remote-control operation |
| Accurately measures ratio, phase deviation and excitation current |
| Field upgradeable without compromise to calibration |
| Built-in capability for storing and downloading test results in an XML format, via RS-232, Ethernet or USB ports (depending on model) |
| Works in the presence of high interference/high voltage |
| Highest ratio measurement (45,000:1); highest accuracy (0.1%) |
| Displays % error vs. name plate with pass/fail limits |
| Specifications |
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| TTR3XX Series 3-Phase Transformer Turns Ratio Test Sets |
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| Ordering Information |
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| Model / Part Number | Description |
| TTR300 | Three-Phase TTR, remote controlled |
| TTR310E | Three-Phase TTR, stand alone or remote controlled |
| TTR330A | Three-Phase TTR with PowerDB ONBOARD |
| Notes | All units operate at 108 V-132 V or 207 V-253 V.
Note: -47 models have fuse for 230 V operation and calibrated for 50 Hz (for accurate phase deviation).
Note: -45 models have 120 V fuse rating and 50 Hz calibration.
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| Included Accessories |
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| 2012-180 | Backpack lead bag |
| 2009-874 | Universal AC power cord set, 2.5m (8 ft), IEC, includes US standard, Schuko CEE 7/7, BS1363, AS/NZ S3112:2004 |
| 4702-7 | Ground lead, 15 ft (4.6 m) |
| 30915-220 | Hand-held TEST switch assy for remote operation (TTR300 only) |
| - | PowerDB LITE software |
| CA-RS232 | RS232 cable for connecting to a PC for use with TTR300 and TTR310E |
| 36798 | Ethernet cable for connecting to a PC for use with TTR330A, TTR310E |
| 90011-383 | Ethernet CAT 5E/6 crossover adapter for TTR330A and TTR330A-47 |
35298
35299
35300
| Transformer Vector Voltage Diagram Set (for ANSI, IEC, and AS Standards) for TTR310E |
| 2005-249 | 1:1 test jig (instrument self test) |
| 1010-942 | USB memory stick contains user guides, PowerDB Lite, software related documents |
