Transformer Analysers & Ratiometers

Diagnose a range of problems with these testers including turn ratio, phase deviation, excitation current and winding resistance of single and three phase transformers., can be used in various industries and applications such as electrical power plants, facility management, industrial systems and specialist installations.

Find out more about Transformer Analysers & Ratiometers below.

Megger MWA300/330A Phase Ratio & Winding Resistance Analyzer - Remote Control or Onboard Computer
Megger MWA300/330A Phase Ratio & Winding Resistance Analyzer - Remote Control or Onboard Computer
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  • Ratio, phase, and winding resistance
  • Remote Control or Onboard Computer
  • Unique Kelvin clamps with adjustable jaws 
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Megger TTR20-1 & TTR25-1 Handheld Transformer Turns Ratio Tester: 10,000:1 or 20,000:1 Range
Megger TTR20-1 & TTR25-1 Handheld Transformer Turns Ratio Tester: 10,000:1 or 20,000:1 Range
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  • Easy-to-read, high-contrast, backlit LCD
  • Extra-rugged, high-impact, shock-resistant case with metal connectors
  • Supports single-hand, one-button operation
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Megger SW-VERSATILE TTRU3 Software - Phase Shift, Magnetic Balance or Kit
Megger SW-VERSATILE TTRU3 Software - Phase Shift, Magnetic Balance or Kit
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  • Phase-shifting software
  • Magnetic balance software
  • Enhance your TTRU3
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Claude Lyons Portavolt Variable Transformer (10 Amp) – Choice of Display
Claude Lyons Portavolt Variable Transformer (10 Amp) – Choice of Display
£675.00
£810.00 inc. vat
  • Continuously variable 0 to 115% output
  • Thermal overload cut-out
  • Ideal for laboratory, manufacturing, testing, and educational applications
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HD Electric TILT II Transformer Testers
HD Electric TILT II Transformer Testers
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  • Four versions available: two with manual self-test, two with automatic self-test
  • Check de-energised transformers for major defects before energising
  • Simple single-button operating system
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HD Electric Quick-Check Transformer & Capacitor Testers
HD Electric Quick-Check Transformer & Capacitor Testers
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  • Available in four models: two with manual self-tests; two with automatic self-tests
  • Quickly and easily check de-energised transformers for major defects prior to energising
  • Simple one-button operating system
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Claude Lyons Portavolt Variable Transformer (15 Amp) – Choice of Display
Claude Lyons Portavolt Variable Transformer (15 Amp) – Choice of Display
£795.00
£954.00 inc. vat
  • Continuously variable output from 0% to 115%
  • No waveform distortion or harmonic generation
  • Available without a display, with an analogue display, or with a digital display
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Claude Lyons Portavolt Variable Transformer (7 Amp) – Choice of Display
Claude Lyons Portavolt Variable Transformer (7 Amp) – Choice of Display
£995.00
£1,194.00 inc. vat
  • Available with a digital display, analogue display, or without a display
  • Continuously variable output of 0 to 115%
  • No harmonic generation or waveform distortion
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HD Electric CT-300 Cleartest® Transformer Tester – Choice of Carry Bag
HD Electric CT-300 Cleartest® Transformer Tester – Choice of Carry Bag
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  • Determines the condition of de-energised power distribution system transformers
  • Briefly energises the transformers to determine the voltage, current and power factor of the test signal
  • Simple operating system and LED indication
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Metrel MI3280 Digital Transformer Analyser
Stock Due : Estimated 2-3 Weeks
Metrel MI3280 Digital Transformer Analyser
£3,880.00
£4,656.00 inc. vat
  • Measure turn ratio, phase deviation, excitation current and winding resistance of transformers
  • Download results to PC or phone via Bluetooth 
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Chauvin Arnoux DTR 8510 Ratiometer
Chauvin Arnoux DTR 8510 Ratiometer
£4,250.00
£5,100.00 inc. vat
  • Comes complete with required leads and rugged carry case
  • NiMH battery with life up to 10 hours
  • Digital LCD display 
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Megger TRS1+ / TRS1D Transformer Ratio Standard - Step Down w/ Optional Step Up
Megger TRS1+ / TRS1D Transformer Ratio Standard - Step Down w/ Optional Step Up
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  • High accuracy 0.01 %
  • Rugged design
  • Four-terminal Kelvin
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Megger Magnus Step Up Transformer (230V)
Megger Magnus Step Up Transformer (230V)
£7,515.00
£9,018.00 inc. vat
  • Demagnetise current transformer cores
  • Conduct turn-ratio tests on voltage transformers
  • Prepare excitation curves easily and quickly
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Megger TTRU3-EXP/PRO/ADV True 3 Phase Transformer Turns Ratiometer - 3Ø 125 or 250V
Megger TTRU3-EXP/PRO/ADV True 3 Phase Transformer Turns Ratiometer - 3Ø 125 or 250V
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  • Unique kelvin clamps
  • 3Ø test voltage - up to 250V
  • Guaranteed accuracy ±0.05 % from -20 °C to +50 °C
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Megger TAU3 Three Phase Switched Multifunction Turns Ratiometer, Winding Resistance Ohmmeter - Basic, Professional or Expert Models
Megger TAU3 Three Phase Switched Multifunction Turns Ratiometer, Winding Resistance Ohmmeter - Basic, Professional or Expert Models
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  • True three-phase simultaneous AC or DC excitation
  • Easy interface 
  • Ideal for special applications
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Megger TRAX 280 Transformer & Substation Test System
Megger TRAX 280 Transformer & Substation Test System
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  • Delivers a high current output of up to 800A
  • Multifunctional test system: you only require one instrument
  • Suitable for applications requiring variable currents
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Megger DELTA4000 Series 12 kV Insulation Diagnostic System - Optional Onboard Computer
Megger DELTA4000 Series 12 kV Insulation Diagnostic System - Optional Onboard Computer
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  • 1 Hz power factor/tan delta
  • Immediate condition assessment
  • Reliable results and stable readings
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Megger MRCT Relay & Current Transformer Test Set – Completely Configurable
Megger MRCT Relay & Current Transformer Test Set – Completely Configurable
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  • Demagnetisation, ratio, saturation, winding resistance, polarity, phase deviation, & insulation resistance
  • Automatically calculates ratio errors, saturation curves, & knee points (up to 30kV)
  • Future upgradeability
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Megger MVCT VT & CT Analyser - Completely Configurable
Megger MVCT VT & CT Analyser - Completely Configurable
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  • Completely configurable
  • CT tests & VT tests
  • Multiple model options
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About Transformer Analysers & Ratiometers

A radiometer is a device used to measure the intensity of radiant energy. A majority of radiometers use only single photocell sensors. To measure radiation emitted from a specific spectrum or to incorporate the radiometer within a certain spectral response, an optical filter is normally used.

Transformer analysis is completed for maintaining the specifications and performance of an electrical power transformer. The transformer is the main part of an electrical generation/distribution system so if it is not working properly then it will affect the whole system.