Megger TTRU1-BASIC Handheld Transformer Turns Ratiometer, 37.5 V AC

Availability: 9 to 10 Weeks

Megger TTRU1-BASIC Offers

Specially designed for single-phase source and measurement, this handheld transformer turns ratiometer uses turns ratio, routine polarity validation, and TTR excitation current testing to locate problems such as defects and failures, requiring minimal input from users. Furthermore, users can organize and export readable results by email, Microsoft Excel export, or an optional USB printer (sold separately).

Minimize training duration with the intuitive full-color Hi bright LCD user interface, rotary knob for function selection, and automatic results storage. Obtain accurate results with the easy-to-follow setup. In addition, when the batteries need recharging, plug them into any standard USB wall charger or connect them to your PC.

Features

• Single phase source and measurement for single phase, three phase, and instrument transformer testing: Turns ratio, excitation current, and polarity up to 37.5 V induced
• Accuracy guaranteed from -4 to 122°F (-20 to 50°C)
• Excitation current: Included with the TTR test, the excitation current test is extremely useful in locating problems such as defects in magnetic core balance, magnetic core structure, shifting windings, failures in the turn-to-turn insulation, or problems in tap changers
• TTR Turns ratio testing: When compared to other single phase turns ratio test instruments, this device is easier to use as you don't need to know the proper test voltage to obtain a valid test result
• Additive/subtractive polarity recognition: Polarity recognition provides confidence in transformer results by performing vector group validation during every test
• Pass/fail ratio evaluation
• Calculated ratio with percent error (optional pass/fail display)
• Uses the latest technological advancements, providing safe, repeatable, and reliable results
• Results on-screen show if the connected distribution transformer is additive or subtractive
• Rotary knob for function selection: TTR, settings, info (BASIC/ADV results export)
• Instrument self-check
• Full colour Hi-bright LCD: Onscreen vectors and connection diagrams
• Auto screen dimming and power off
• Easily manage data with custom transformer entry, auto-saving, and USB export
• Automatic results storage: Microsoft Excel® export, USB drive save and export or USB printer (sold separately)
• AA battery operated: NiMH USB-C rechargeable batteries
• Belt loop carry bag
• Hand crank and solar battery pack (sold separately)
• Seven button instrument control
• Start/stop test control
• Power on/off
• Test mode selector
• USB-A indicator
• USB-A printer data export
• USB-C battery charging
• Battery level Indicator
• Secondary connections
• Primary connections

Applications

• Electrical test equipments
• Electrical distributions
• Instruments (CTs and PT/VTs)
• Power transformers

Megger TTRU1-BASIC Specifications

Specifications

Voltage Maximum	Induced: 37.5 VOutput: 45 V AC peak
Maximum Turns Ratio	50,000 down
Maximum Current	1 A
Pass/Fail Ratio Evaluation	Yes
Additive/Subtractive Polarity Validation	Yes
Excitation Current Measurements	Yes
Automatic Results Storage	Yes
Three Phase Measurements	Yes (unguided)
Self-Check Diagnosis	Yes
USB Drive Save and Export	Yes
Output	Voltage: Single phase, 1 to 50 VCurrent: 0.1 mA to 1 A
Turns Ratio	Measurement methods: Single phase step up/single phase step downTurns ratio range and accuracy: Step down excitation25 to 50 V: ±0.05% 0.8 to 1000±0.1% 1001 to 2000 ±0.3% 2001 to 15,000 ±1% 15,000+1 to 24 V:±0.1% 0.8 to 1000±0.2% 1001 to 2000 ±0.6% 2001 to 15,000±2% 15,000+Step up measurement:25 to 250 V: ±0.05% 0.8 to 200 (most Power Tx)1 to 24 V: ±0.1% 0.8 to 200
Excitation	Current resolution: 0.1 mA, 0.1 mA to 100 mA/1 mA, 101 mA to 1000 mACurrent accuracy: ±1% reading, ±0.1 mA
Frequency Accuracy	±1% reading, ±0.1 Hz
Phase Range	Range: 0 to 360°Accuracy: ±0.05°
Printer	2" (51 mm) thermal printer (sold separately), prints all measurement data displayed on GUI
Display	Full colour 3.5" (88 mm) 320 x 240 pixels Hi-bright LCD screen with 'auto dim' and 'auto off' to preserve battery life
Case	Heavy duty over-molded case with built in connection for hook strap. Carry case with quick start guide, belt loop hook, and pouches for included lead set and accessories
Communication/Control Software	USB interface for PC download with custom GUISoftware: Microsoft Excel export
Internal/External Data Storage	Automatic results storageUp to 10 custom vector storageUp to 10,000 sets of single-phase results internal storageTransferable via USB 2.0 drive
Environmental Conditions	Operating: -4 to 122°F (-20 to 50°C)Storage: -22 to 158°F (-30 to 70°C)Relative humidity: 0 to 90%, non-condensing
Transformer Testing Standards	IEEE: C57.152-2013IEC: 60076-1:2011AS/NZS: 6076 1:2014CIGRE: 445 2011GOST: 3484.1-88
Regulatory	Safety: IEC 61010-1:2010 + AMD1:2016EMI/EMC: IEC 61326-1:2012RoHS2: EN50581Vibe/shock: MIL-STD -810GIngress: IP54
Power	Auto dim and power off battery savingType: 6 x IEC LR6 1.5 V alkaline (AA)6 x IEC HR6 1.2 V NiMH rechargeable (AA)Battery life: 1000 TTR tests on a single chargeStorage: 1+ years NiMH, 5+ years alkalineBattery charging: USB-C when set to NiMH batteries, protection against alkaline chargingPowerEx PRO NiMH battery charging: 0 to 45°C
Dimensions	8.98 x 4.1 x 2.95" (22.8 x 10.5 x 7.5 cm)
Weight	2.2 lbs (1 kg)

What's included with the Megger TTRU1-BASIC

• Handheld Turns Ratiometer
• USB C to A Cable
• USB C to C Cable
• H and X Leads
• USB Drive
• Soft Carrying Case
• One-Year Warranty

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