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Megger TTRU3 True 3 Phase Transformer Turns Ratiometer
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Product Details
Brand:
Megger
Excitation Voltage :
3Ø, 1 - 48VAC, up to 250V on Primary
Test Frequency :
50-480Hz
Excitation Current Range :
0.1mA - 1A, Max 2A @ 48V
Turns Ratio Range :
±0.05% 0.8 - 1000, ±0.10% 1001 - 2000, ±0.30% 2001 - 15000, ±1% 15001 - 50000
Current (rms) accuracy :
± 1% ±0.1 mA
Safety/EMC/Vibration :
IEC 61010-1:2010 + AMD1:2016, IEC 61326-1:2012, MIL-STD-810G
Temperature Range :
Operating: -20°C to +50°C (-4°F to +122°F), Storage: -30°C to +70°C (-22°F to +158°F)
Relative humidity :
0-90%, non-condensing
Measurement Method :
3Ø Step-Up, 3Ø Step-Down, 1Ø Step-Up, 1Ø Step-Down
Dimensions:
406 x 304 x 254mm / 16 x 12 x 8in
Weight:
6.5kg / 14lbs
Megger TTRU3
The Megger TTRU3 is a state-of-the-art, true three-phase transformer turns ratio tester designed to provide highly accurate and efficient testing for transformers. Here are some key features and benefits of the TTRU3:
Key Features
- Three-Phase Testing: The TTRU3 performs true three-phase turns ratio measurements using a patented step-up excitation method. This allows for simultaneous testing of all three phases, significantly reducing testing time1.
- High Accuracy: It guarantees a transformer turns ratio accuracy of ±0.05%, ensuring reliable and precise measurements1.
- Fast Testing: Capable of completing three-phase tests in less than 10 seconds, making it one of the fastest testers on the market1.
- Versatile Applications: Suitable for testing a wide range of transformers, including phase-shifting and zigzag transformers1.
- High Test Voltage: Can induce up to 250 V on the primary winding, overcoming voltage dependence issues seen in larger transformers1.
- User-Friendly Interface: Features a 7-inch daylight-viewable touch screen display for easy operation and data visualization1.
- Data Management: Allows for the storage of test results directly on the device, and results can be downloaded in Excel or PDF formats. It also supports remote control and data download via a computer1.
- Portability: The TTRU3 is the smallest and lightest three-phase test set available, making it highly portable and convenient for field use1.
Applications
- Substation Testing: Ensures the accurate performance of transformers in substations.
- Manufacturing Quality Control: Used in transformer manufacturing for quality assurance.
- Maintenance and Troubleshooting: Helps in diagnosing and maintaining transformers in various settings12.
Additional Features:
- Automated OLTC Testing: Automates the On-Load Tap Changer (OLTC) test sequence with a single touch1.
- Optional Printer: An optional 2-inch printer is available for hard copies of test results1.
- Overall, the Megger TTRU3 is a powerful and efficient tool for anyone involved in transformer testing, offering unparalleled accuracy, speed, and ease of use.
Megger TTRU3 Specifications
| Input Power | 90-264VAC, 47-63Hz, 250VA Max | |
| Output | Voltage | 3Ø, 1 - 48VAC, up to 250V on Primary |
| Frequency | 50-480Hz | |
| Current | 0.1mA - 1A, Max 2A @ 48V | |
| Turns Ratio Measurement Methods | 3Ø Step-Up, 3Ø Step-Down, 1Ø Step-Up, 1Ø Step-Down | |
| Turns Ratio Range and Accuracy | Step-Down Excitation 25-48V | ±0.05% 0.8 - 1000 |
| ±0.10% 1001 - 2000 | ||
| Guaranteed accuracy from -20°C to +50°C | ±0.30% 2001 - 15000 | |
| ±1% 15001 - 50000 | ||
| Step-Down Excitation 1-24V | ±0.10% 0.8 - 1000 | |
| ±0.20% 1001 - 2000 | ||
| ±0.60% 2001 - 15000 | ||
| Step-Up Measurement 25-250V | ±0.05% 0.8 - 200 (most Power Tx) | |
| Step-Up Measurement 1-24V | ±0.10% 0.8 - 200 | |
| Excitation Current Measurement | Resolution | 0.1mA 0.1mA - 100mA, 1mA 101-2000mA |
| Accuracy | ± 1% ±0.1 mA | |
| Frequency Measurement | Resolution | 0.1 Hz |
| Accuracy | ±0.1% ±0.1 Hz | |
| Transformer Phase Measurement | Range | 0 - 360 Degrees |
| Accuracy | ± 0.05 Degrees | |
| Resolution | 0.01 Degrees | |
| Weight | 6.5kg / 14lbs | |
| Dimensions | 406 x 304 x 254mm / 16 x 12 x 8in | |
| Environmental | Operating | -20°C to +50°C (-4°F to +122°F) |
| Storage | -30°C to +70°C (-22°F to +158°F) | |
| Relative Humidity | 0-90%, non-condensing | |
| Regulatory | Safety | IEC 61010-1:2010 + AMD1:2016 |
| EMI/EMC | IEC 61326-1:2012 | |
| RoHS2 | EN50581 | |
| Vibration/Drop/Shock | MIL-STD-810G | |
| Touchscreen | 180mm (7 in.), 800 x 480 Resolution, 1100 NITS | |
| Transformer Testing Standards | IEEE C57.152-2013, IEC 60076-1:2011, AS/NZS 6076 1:2014, CIGRE 445 2011 | |
| Case | Rugged case with fold-out feet, canvas carrying bag for leads and accessories | |
| Internal/External Data Storage | Up to 2000 sets of 3-phase results internal storage, transferable via USB 2.0/3.0 thumb drive | |
| Communication/Control Software | 180mm (7in) built-in display running custom GUI, USB Interface for PC Control running custom GUI | |
| Printer Output | 51mm (2in) thermal printer, prints all measurement data displayed on GUI | |
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Megger TTRU3 True 3 Phase Transformer Turns Ratiometer
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