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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.

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19 Products
  1. Megger MWA300/330A Phase Ratio & Winding Resistance Analyzer - Remote Control or Onboard Computer
    Megger logo
    Megger MWA300/330A Phase Ratio & Winding Resistance Analyzer - Remote Control or Onboard Computer
    (no reviews)
    Call for Pricing
    • Ratio, phase, and winding resistance
    • Remote Control or Onboard Computer
    • Unique Kelvin clamps with adjustable jaws 
    We require additional information before you purchase this product.
    NWA300/330A
  2. Megger TTR20-1 & TTR25-1 Handheld Transformer Turns Ratio Tester: 10,000:1 or 20,000:1 Range
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    Megger TTR20-1 & TTR25-1 Handheld Transformer Turns Ratio Tester: 10,000:1 or 20,000:1 Range
    (no reviews)
    Call for Pricing
    • Easy-to-read, high-contrast, backlit LCD
    • Extra-rugged, high-impact, shock-resistant case with metal connectors
    • Supports single-hand, one-button operation
    We require additional information before you purchase this product.
    TTR20-1/TTR25-1
  3. Megger SW-VERSATILE TTRU3 Software - Phase Shift, Magnetic Balance or Kit
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    Free UK Delivery
    Megger SW-VERSATILE TTRU3 Software - Phase Shift, Magnetic Balance or Kit
    (no reviews)
    Call for Pricing
    • Phase-shifting software
    • Magnetic balance software
    • Enhance your TTRU3
    We require additional information before you purchase this product.
    SW-VERSATILE
  4. Claude Lyons Portavolt Variable Transformer (10 Amp) – Choice of Display
    Claude Lyons  logo
    Free UK Delivery
    Claude Lyons Portavolt Variable Transformer (10 Amp) – Choice of Display
    (no reviews)
    £810.00 £675.00
    • Continuously variable 0 to 115% output
    • Thermal overload cut-out
    • Ideal for laboratory, manufacturing, testing, and educational applications
    675 Reward Points
    Price Match Guarantee
    CLP10AMP-X
  5. HD Electric TILT II Transformer Testers
    HD Electric Company logo
    Free UK Delivery
    HD Electric TILT II Transformer Testers
    (no reviews)
    Call for Pricing
    • 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
    We require additional information before you purchase this product.
    HD-TL-XXX-Y
  6. HD Electric Quick-Check Transformer & Capacitor Testers
    HD Electric Company logo
    Free UK Delivery
    HD Electric Quick-Check Transformer & Capacitor Testers
    (no reviews)
    Call for Pricing
    • 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
    We require additional information before you purchase this product.
    HD-QC-XXX-Y
  7. Claude Lyons Portavolt Variable Transformer (15 Amp) – Choice of Display
    Claude Lyons  logo
    Free UK Delivery
    Claude Lyons Portavolt Variable Transformer (15 Amp) – Choice of Display
    (no reviews)
    £954.00 £795.00
    • 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
    795 Reward Points
    Price Match Guarantee
    CLP15AMP-X
  8. Claude Lyons Portavolt Variable Transformer (7 Amp) – Choice of Display
    Claude Lyons  logo
    Free UK Delivery
    Claude Lyons Portavolt Variable Transformer (7 Amp) – Choice of Display
    (no reviews)
    £1,194.00 £995.00
    • Available with a digital display, analogue display, or without a display
    • Continuously variable output of 0 to 115%
    • No harmonic generation or waveform distortion
    995 Reward Points
    Price Match Guarantee
    CLP7AMP-X
  9. HD Electric CT-300 Cleartest® Transformer Tester – Choice of Carry Bag
    HD Electric Company logo
    Free UK Delivery
    HD Electric CT-300 Cleartest® Transformer Tester – Choice of Carry Bag
    (no reviews)
    Call for Pricing
    • 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
    We require additional information before you purchase this product.
    HD-CT300-XX
  10. Chauvin Arnoux DTR 8510 Ratiometer
    Chauvin Arnoux logo
    Lead Time: 1-6 Days
    Free UK Delivery
    Chauvin Arnoux DTR 8510 Ratiometer
    (no reviews)
    £4,140.00 £3,450.00
    • Comes complete with required leads and rugged carry case
    • NiMH battery with life up to 10 hours
    • Digital LCD display 
    3450 Reward Points
    Price Match Guarantee
    P01157702
  11. Metrel MI3280 Digital Transformer Analyser
    Metrel logo
    Lead Time: 2-3 Weeks
    Free UK Delivery
    Metrel MI3280 Digital Transformer Analyser
    (no reviews)
    £4,656.00 £3,880.00
    • Measure turn ratio, phase deviation, excitation current and winding resistance of transformers
    • Download results to PC or phone via Bluetooth 
    3880 Reward Points
    Price Match Guarantee
    MI3280
  12. Megger TRS1+ / TRS1D Transformer Ratio Standard - Step Down w/ Optional Step Up
    Megger logo
    Free UK Delivery
    Megger TRS1+ / TRS1D Transformer Ratio Standard - Step Down w/ Optional Step Up
    (no reviews)
    Call for Pricing
    • High accuracy 0.01 %
    • Rugged design
    • Four-terminal Kelvin
    We require additional information before you purchase this product.
    TRS1-TRS1D
  13. Megger Magnus Step Up Transformer (230V)
    Megger logo
    Free UK Delivery
    Megger Magnus Step Up Transformer (230V)
    (no reviews)
    £9,018.00 £7,515.00
    • Demagnetise current transformer cores
    • Conduct turn-ratio tests on voltage transformers
    • Prepare excitation curves easily and quickly
    7515 Reward Points
    Price Match Guarantee
    BT-12390
  14. Megger TTRU3-EXP/PRO/ADV True 3 Phase Transformer Turns Ratiometer - 3Ø 125 or 250V
    Megger logo
    Free UK Delivery
    Megger TTRU3-EXP/PRO/ADV True 3 Phase Transformer Turns Ratiometer - 3Ø 125 or 250V
    (no reviews)
    Call for Pricing
    • Unique kelvin clamps
    • 3Ø test voltage - up to 250V
    • Guaranteed accuracy ±0.05 % from -20 °C to +50 °C
    We require additional information before you purchase this product.
    TTRU3-EXP/PRO/ADV
  15. Megger TAU3 Three Phase Switched Multifunction Turns Ratiometer, Winding Resistance Ohmmeter - Basic, Professional or Expert Models
    Megger logo
    Free UK Delivery
    Megger TAU3 Three Phase Switched Multifunction Turns Ratiometer, Winding Resistance Ohmmeter - Basic, Professional or Expert Models
    (no reviews)
    Call for Pricing
    • True three-phase simultaneous AC or DC excitation
    • Easy interface 
    • Ideal for special applications
    We require additional information before you purchase this product.
    TAU3-XXX
  16. Megger TRAX 280 Transformer & Substation Test System
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    Free UK Delivery
    Megger TRAX 280 Transformer & Substation Test System
    (no reviews)
    Call for Pricing
    • Delivers a high current output of up to 800A
    • Multifunctional test system: you only require one instrument
    • Suitable for applications requiring variable currents
    We require additional information before you purchase this product.
    AJ-19090
  17. Megger DELTA4000 Series 12 kV Insulation Diagnostic System - Optional Onboard Computer
    Megger logo
    Free UK Delivery
    Megger DELTA4000 Series 12 kV Insulation Diagnostic System - Optional Onboard Computer
    (no reviews)
    Call for Pricing
    • 1 Hz power factor/tan delta
    • Immediate condition assessment
    • Reliable results and stable readings
    We require additional information before you purchase this product.
    DELTA4110/4310A
  18. Megger MRCT Relay & Current Transformer Test Set – Completely Configurable
    Megger logo
    Free UK Delivery
    Megger MRCT Relay & Current Transformer Test Set – Completely Configurable
    (no reviews)
    Call for Pricing
    • Demagnetisation, ratio, saturation, winding resistance, polarity, phase deviation, & insulation resistance
    • Automatically calculates ratio errors, saturation curves, & knee points (up to 30kV)
    • Future upgradeability
    We require additional information before you purchase this product.
    MRCT
  19. Megger MVCT VT & CT Analyser - Completely Configurable
    Megger logo
    Free UK Delivery
    Megger MVCT VT & CT Analyser - Completely Configurable
    (no reviews)
    Call for Pricing
    • Completely configurable
    • CT tests & VT tests
    • Multiple model options
    We require additional information before you purchase this product.
    MVCT

Showing 1 - 19 of 19 products

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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.