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Equipment for testing Transformers
Megger is the world’s biggest manufacturer of Transformer test equipment and offers widest portfolio of transformer test equipment.
The world’s first and most advanced test van capable of full testing and diagnostics of power transformers was produced in Megger.
In 1992 dr. Peter Werilius from Megger invented the first instrument that uses frequency response and changed water content measurement in transformers.
More than a million units of the most reliable insulation resistance testers Megger are used around the globe for Transformer insulation resistance testing.
More than 90% of the transformers test equipment in Macedonia is Megger
Rade Koncar transformer service uses Megger instruments for Tan delta measurement on HV insulation, transformer oils breakdown voltage tester, insulation resistance testers.
Makitel Ohrid (transformer manufacturer uses Megger MTO 300) for simultaneous measurement of 6 windings resistance in 3 phase transformer, insulation resistance and other transformer test equipment.
Most of the transformer test equipment in EVN Macedonia is Megger: all the insulation resistance testers, turns ratio testers, windings resistance testers, Oil breakdown Voltage Testers etc.
Feni also uses Megger test equipment for turns ratio, insulation resistance and transformer oil testing
All of the equipment in Buchim mine Radovish is Megger: Oil breakdown voltage tester, water in oil testing, insulation resistance etc.
Major part of the transformer test equipment in Macedonian Railways, EMO Ohrid, Skopski Leguri, ELEKTANI NA Makedoniaj, and Makstil is Megger
Almost all inspection companies in Macedonia use Megger test equipment for transformer testing including TM Stip, Tehnicki Institut Negotino, Apave, ITIS, Elektroinvest, Elkoing etc.
Major part of the transformer test equipment in MEPSO is also Megger. Transformer turns ratio, several insulation resistance testers, instrument for measuring windings deformation Megger FRAX, 2 instruments for moisture in paper in transformer Megger IDAX, Power multifunction instrument, Water in transformer oil instrument Megger KF lab, and oil breakdown voltage tester.
Transformers are an integral part of the power grid. Their reliability directly impacts the reliability of the grid. The failure of this critical asset can handicap the grid and increase its volatility. Because replacing a high voltage transformer requires planning for many reasons, including long manufacturing lead times that can exceed a full year, it is widely accepted that asset management, particularly of transformers, is a beneficial contribution to the operation of the grid.
Megger’s comprehensive set of transformer testing tools provides a complete view of your transformer’s health


Equipment for testing transformers
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Complete transformer test systems
Transformer resistance testing

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LTC135
Load tap changer testing power supply

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MWA300 and MWA330A
3-Phase ratio and winding resistance analyser

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MTO106
Transformer ohmmeter

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MTO210
Transformer ohmmeter

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MTO250
50 A Transformer ohmmeter

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MTO300 and MTO330
Automated six-winding transformer ohmmeter
Turns ratio testing

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TRAX
Multifunction Transformer and Substation Test System

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TRS1
Transformer ratio standard

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TTRU3
True 3 phase transformer turns ratiometer

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TTR100-1
Hand-held transformer tester

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MWA300 and MWA330A
3-phase ratio and winding resistance analyser

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TTR20-1
Hand-held transformer tester

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OTS60SX
Semi automatic oil test set

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TTR25-1
Hand-held transformer tester

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PowerDB Pro
Acceptance & maintenance test data management software

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TTR550005B
Single phase hand cranked transformer turns ratio tester
PD testing on transformers

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PD Scan
Online PD handheld scanner

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UHF PD Detector
Handheld online PD substation surveying system

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ICM Compact

