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  1. Electrical Testers
  2. Battery Testers

Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer

The Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer features maintenance capabilities with step-up/step-down ratio testing, a 7-inch touchscreen, and easy result export.

Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer
Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer Front View
  • Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer Front View
    Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer Front View
  • Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer Side View
    Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer Side View
Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer
Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer Front View
Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer
Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer Side View
$12,255.00 Found a better price? Let us match.

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Part Number
  • TTRU3-BASIC
Manufactured
  • By Megger
Includes
  • FREE Ground Shipping
  • FREE Lifetime Tech Support
Availability
  • Call for availability
Product Manual Product Specs
Questions?
Call 1-800-884-4967 or email sales@instrumart.com. Open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET.
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Overview

Features

  • Input Power: 90-264VAC, 47-63Hz, 250VA Max
  • Output:
    • Voltage: 3Ø, 1 - 48VAC, up to 125V on Primary
    • Frequency: 50-480Hz
    • Current: 0.1mA - 1A, Max 2A @ 48V
  • Turns Ratio Measurement: 1Ø Step Up / 1Ø Step Down
  • Phase Measurement: 0-360°, ±0.05° accuracy
  • Environmental: Operating range -20 to 50°C
  • Ingress Protection: IP51 (unit), IP67 (unit in transit case)
  • Display: 7-inch color touchscreen, 800x480 resolution
  • Data Storage: 2000 sets of 3-phase results, USB export

Description

The Megger TTRU3-BASIC three phase transformer turns ratiometer is a compact and efficient tool designed for testing all types of power, instrument, and distribution transformers. It uses a step-up ratio technique to simplify turns ratio testing, eliminating the need for high voltage or complex instruments. The device operates with a single 3Ø lead-set connection, offering a range of tests such as ratio, phase shift, polarity, and magnetic balance. The TTRU3-BASIC also features a 7-inch color touchscreen, intuitive user interface, and options for printing and saving test results via USB.

This device helps detect issues like loose connections, turn-to-turn shorts, broken strands, and winding deformation. With guaranteed accuracy of ±0.10% and an easy-to-use interface, it can handle testing under various conditions and provides automatic recognition of vector groups. Additionally, the TTRU3-BASIC is smaller and lighter than traditional ratiometers, making it more portable and cost-effective. It is ideal for routine maintenance, factory validation, and troubleshooting.

Documents

Spec Sheets

  • Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer Datasheet (2.0 MB)

Manuals

  • Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer Manual (8.6 MB)

Application Notes and White Papers

  • Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer Application Note (124 KB)

Accessories

Replacement Parts

Megger 1011-352 Transmitter Safety Ground
Megger 1011-352 Transmitter Safety Ground

Green safety ground cable - 5m (16ft).

$109.00
Megger 2009-874 AC Power Cord + Adapters
Megger 2009-874 AC Power Cord + Adapters

AC Power Cord with universal adapter types B, I, G, and J.

$113.00
Megger 1011-622 Tap Changer Cable 9m
Megger 1011-622 Tap Changer Cable 9m

Tap changer cable for OLTC control. Includes alligator clips.

$390.00
Megger 2011-538 Triple Function Pen/Stylus/Light
Megger 2011-538 Triple Function Pen/Stylus/Light

Triple function pen, stylus, and light.

$19.00
Megger 2012-180 Backpack Lead Bag
Megger 2012-180 Backpack Lead Bag

Backpack Lead Bag for TTRU1 Handheld Transformer Turns Ratiometer and Accessories.

$185.00

Required Components

These additional components are required for the operation of your product. We strongly advise you to purchase these components unless you already own them or own a suitable alternative.

Megger 2008-15KIT2 5m H/X Lead
Megger 2008-15KIT2 5m H/X Lead

5m (15ft) lead kit - includes four 5m H leads (red, yellow, blue, white) and four 5m X leads (red, yellow, blue, white).

$1,515.00
Megger 2008-30KIT2 9m H/X Lead
Megger 2008-30KIT2 9m H/X Lead

9m (30ft) lead kit - includes four 9m H leads (red, yellow, blue, white) and four 9m X leads (red, yellow, blue, white).

$1,785.00
Megger 2008-60KIT2 18m H/X Lead
Megger 2008-60KIT2 18m H/X Lead

18m (60ft) lead kit - includes four 18m H leads (red, yellow, blue, white) and four 18m X leads (red, yellow, blue, white).

$2,030.00
Megger 2008-100KIT2 30m H/18m X
Megger 2008-100KIT2 30m H/18m X

30m (100ft) lead kit - includes four 30m H leads (red, yellow, blue, white) and four 18m X leads (red, yellow, blue, white).

$2,230.00
Megger 2008-300-15 5m H Lead
Megger 2008-300-15 5m H Lead

four 5m (15ft) H leads (red, yellow, blue, white).

$800.00
Megger 2008-301-15 5m X Lead
Megger 2008-301-15 5m X Lead

four 5m (15ft) X leads (red, yellow, blue, white).

$800.00
Megger 2008-300-30 H Lead
Megger 2008-300-30 H Lead

Four 9m (30ft) H leads (red, yellow, blue, white).

$960.00
Megger 2008-300-60 18m H Lead
Megger 2008-300-60 18m H Lead

four 18m (60ft) H leads (red, yellow, blue, white).

$1,100.00
Megger 2008-301-60 18m X Lead
Megger 2008-301-60 18m X Lead

four 18m (60ft) X leads (red, yellow, blue, white).

$1,100.00
Megger 2008-300-100 30m H Lead
Megger 2008-300-100 30m H Lead

Four 30m (100ft) H leads (red, yellow, blue, white).

$1,610.00
Megger 2008-300-30X 3Ø Universal 10A H Lead Extender
Megger 2008-300-30X 3Ø Universal 10A H Lead Extender

10A 9m/30ft lead extensions - includes four 9 meter H leads.

$645.00
Megger 2008-301-30X 3Ø Universal 10A X Lead Extender
Megger 2008-301-30X 3Ø Universal 10A X Lead Extender

10A 9m/30ft lead extensions - includes four 9 meter X leads.

$645.00
Megger 2008-30XKIT2 3Ø Universal 10A H/X Lead Extender
Megger 2008-30XKIT2 3Ø Universal 10A H/X Lead Extender

10A 9m/30ft lead extension kit - includes four 9 meter H leads and four 9 meter X leads .

$1,220.00
Megger 2008-301-30 9m X Lead
Megger 2008-301-30 9m X Lead

Four 9m (30ft) X leads (red, yellow, blue, white).

$960.00

Accessories

Please consider these optional accessories.

Megger 2005-249 1:1 Test Jig
Megger 2005-249 1:1 Test Jig

1:1 Test Jig for verifying proper operation of the TTRU3.

$124.00
Megger 1004-639 Safety Beacon 18m
Megger 1004-639 Safety Beacon 18m

Test beacon that 18m (60ft) illuminates during test to alert personal to stay out of test area.

$1,200.00
Megger 2012-236 TTRU3 Transit Case
Megger 2012-236 TTRU3 Transit Case

TTRU3 Transit Case for Instrument Only.

$1,195.00
Megger 830285 Universal Bushing Adapters (x4)
Megger 830285 Universal Bushing Adapters (x4)

Four universal bushing adapters.

$355.00

Need Help? Call a Temperature engineer at 1-800-884-4967

We're open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET

Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart
Dwight M. headshot Dwight M.
Senior Applications Engineer
28 years at Instrumart
Ron J. headshot Ron J.
Temperature Engineering Lead
29 years at Instrumart
Rhys D. headshot Rhys D.
Applications Engineer
Luke M. headshot Luke M.
Applications Engineer
5 years at Instrumart
David S. headshot David S.
Applications Engineer
Shawn D. headshot Shawn D.
Senior Applications Engineer
20 years at Instrumart
Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart
Dwight M. headshot Dwight M.
Senior Applications Engineer
28 years at Instrumart
Ron J. headshot Ron J.
Temperature Engineering Lead
29 years at Instrumart
Rhys D. headshot Rhys D.
Applications Engineer
Luke M. headshot Luke M.
Applications Engineer
5 years at Instrumart
David S. headshot David S.
Applications Engineer
Shawn D. headshot Shawn D.
Senior Applications Engineer
20 years at Instrumart
Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart

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Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer
Megger TTRU3-BASIC Three-Phase Transformer Turns Ratiometer
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