Electrical Tester
ET Magazine is Megger's free, printed magazine filled with informative and entertaining articles from across the electrical industry.
Our entire archive of ET magazine issues will be listed here soon.
Some selected articles can be found here:
2023 Popular articles
July-2023 User-driven development in circuit breaker testing
July-2023 Assessing high voltage substation equipment at 1 Hz
July-2023 Batteries are not 'fit and forget' assests!
May-2023 Q&A: Earth/ground testing
May-2023 Stray currents in water pipes in a reverse osmosis (RO) plant
May-2023 Coupling Capacitor Voltage Transformers (CCVTs)
April-2023 Inductance measurements can be confusing – a deeper dive
April-2023 A global view of power transformer technology present and future
February-2023 IEC 61850, digital substations, and the Smart Grid
February-2023 Geek challenge IV
January-2023 How is Megger connected with reindeer herding ?
January-2023 Protecting wind turbines through effective grounding
January-2023 Self-powered relay testing challenges
2022 Popular articles
April-2022 Surge and lighting arresters
April-2022 Motor inrush current
February-2022 VLF testing on motors and generators
February-2022 Understanding generator restricted earth fault (REF) protection and testing
2021 Popular articles
December-2021 The wrong call for contactors
December-2021 ELECTROPEDIA – The IEC vocabulary
December-2021 Electrical hot spot inspection and preventative maintenance
October-2021 IEC 60255 1xx: Protection relay functional standards for all
October-2021 Q&A: Partial discharge testing
October-2021 Testing high speed dc circuit breakers
August-2021 Diagnostic testing of bushings
August-2021 What is a knee point
July-2021 Testing parallel resistances
July-2021 HVDC transmission – in 1904!
May-2021 Excitation voltage options for PD investigations on MV cables
March-2021 Static and dynamic resistance testing of transformer tap changers
February-2021 Keeping a watchful eye on transformers
February-2021 On-line testing of circuit breakers
2020 Popular articles
November-2020 End-to-end testing for line differential protection
November-2020 A toolbox approach to fault location in lv power c
November-2020 Geek Challenge III
October-2020 Partial discharge an interview with the experts
October-2020 Training and education in the covid-era
October-2020 Training opportunities and challenges: the views of a senior trainer
June-2020 Are your electrical workers up to par
June-2020 Monitoring TT low voltage distribution systems
May-2020 The missing link in motor condition monitoring
May-2020 Testing ROCOF protection
April-2020 A bird’s-eye view of the rise of transformer electrical, dielectric testing
April-2020 Meeting the challenge of cable testing in Bolivia
March-2020 A kit for earth testing
March-2020 DC testing of vacuum integrity in mv switchgear
March-2020 Have you ever heard of the Alexanderson alternator?
February-2020 Lesser known facts about ttr testing that are affecting your results
January-2020 Motor insulation test voltages: how high is too high?
2019 Popular articles
December-2019 Protection testing the primary way
June-2019 Cable insulation test voltages how high is too high
June-2019 q & a insulation resistance testing
May-2019 Surge testing electric motors cooling the debate
May-2019 Pictures on your radio
April-2019 The importance of the guard terminal in insulation testing
March-2019 Surge testing electric motors
March-2019 q & a winding resistance testing
February-2019 maximising asset reliability
January-2019 Big success for CT testing in India
January-2019 Meet IDA: An interview with Megger’s Dr. Peter Werelius
2018 Popular articles
November-2018 With you all the way for low-resistance testing!
November-2018 Megger helps Nebraska public power district to clear cable replacement backlog
November-2018 A voltmeter in your pocket
July-2018 The many facets of loop testing
July-2018 The do’s and don’ts of insulation power factor tes
July-2018 Best practice for sweep frequency response analysis
June-2018 Keeping wind farms safe
June-2018 Salvaging flood damaged equipment
June-2018 A helping hand for insulation testing above 1 kV
February-2018 Transformer turns ratio testers who needs them
February-2018 Earth resistance testing with Euclid and Da Vinci
February-2018 Q&A: Battery testing
February-2018 The do’s and don’ts of insulation power factor testing – part 1
January-2018 insulation testing a word of caution!
2017 Popular articles
December-2017 Earth resistance testing testing with euclid and d
December-2017 A new tool for averting failures in HV and MV systems
December-2017 New battery testing guide from Megger
November-2017 Transformer life management oil tan delta
November-2017 Reducing workplace risk by employing qualified personnel
November-2017 Warsaw University of Technology and Megger: A productive partnership
November-2017 Telegraphy spans the Atlantic - briefly
October-2017 Find out about SFRA the practical way!
October-2017 Condition analysis for gas-insulated breakers
October-2017 Circuit breaker and transducers part 2
October-2017 Q and A: High voltage circuit breakers
September-2017 Circuit breaker and transducers part 1
September-2017 From the Audion to talking movies
September-2017 Auto-recloser whys and wherefores
September-2017 Hazardous materials and grounding
August-2017 Electrical safety when using test equipment
August-2017 Centrix takes cable test to the heart of the city
July-2017 Power quality beyond the fundamentals
July-2017 Celebrating 10 years of DualGround™ circuit breaker timing with DCM technology
June-2017 Safe, fast hv circuit breaker testing with dcm dua
May-2017 Primary injection testing challenges and solutions
April-2017 pd diagnostics for aging mv pilc cables
March-2017 How important is electrical equipment maintenance
March-2017 Power quality effects on transformers and motors
January-2017 transformer condition assessment with an integrated test van
2016 Popular articles
December-2016 Frequency response of stray losses in transformers
December-2016 Electrical safety - assessing for electrical hazards
September-2016 Turns ratio testing hand crank versus automatic
July-2016 Tan delta testing: variable frequency method
June-2016 Frequently confused by frequency testing
March-2016 Sweep frequency response analysis
2008 - 2015 Popular articles
October-2015 gic a major risk factor for the power grid
July-2015 Diagnostic testing of high voltage circuit breaker
June-2015 Electricity theft an underestimated problem
May-2015 Diagnostic testing of high voltage circuit breaker
November-2014 Heroic developments in relay testing
July-2009 Current transformers
June-2009 Breaking the mould in circuit breaker testing
April-2009 Finding fault with cables
October-2008 You got the power
