Megger Group Ltd.
Megger has been a leader in electrical test and measurement globally for 130 years. From power generation to the power outlets in your home, Megger products cover almost every application within the Electrical Supply Industry.
- +44 (0) 1304 502101
- uksales@megger.com
- Archcliffe Road
Dover, CT17 9EN
United Kingdom of Great Britain and Northern Ireland
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Product
Low Voltage Testers
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Device used to identify opens and shorts in applications that are driven on low voltages.
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Product
Partial Discharge
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Is a localized dielectric breakdown (DB) (which does not completely bridge the space between the two conductors) of a small portion of a solid or fluid electrical insulation (EI) system under high voltage (HV) stress.
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Product
Insulation Resistance Testers < 1 kV
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With over twenty 1-kV models to choose from, selecting the proper Megger insulation tester can appear a bewildering task at first. Actually all the process requires is a little organization. All Megger insulation testers perform essentially the same test in fundamentally the same manner - accurately and reliably. Refinements and added features, however, separate one model from another in application and operator appeal.
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Product
Electricians' Accessories
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A selection of voltage detectors, proving units, test leads, certificate books and a DVD, which make it that bit safer and easier to get the job done.
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Product
Single Phase Relay Testing
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Megger’s single phase relay test sets are essential items in the relay engineer’s toolbox. Lightweight, rugged with high compliance voltage and test current. Ideal for testing distribution networks, industrial relays, distance relays in rail power networks and many other applications.
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Product
Transformer Insulation Testing
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The primary test methods used to assess the condition of the active insulation components in transformers and bushings, on site, include:1) power factor/tan δ,2) variable frequency power factor/tan δ (1 - 500 Hz)3) dielectric frequency response (DFR) [a dielectric response method], and4) moisture in oil measurements (for transformers).
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Product
AC Insulation Testing
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AC insulation tests are a popular response to the increasingly demanding industrial, power and domestic marketplaces. Insulation materials have had to become more efficient to keep up with demand; more efficient equipment requires less insulation material to meet the minimum acceptable value of insulation resistance. In turn, cables have become smaller and lighter. However, under certain higher stress testing conditions such as DC testing, cables like Crossed Linked Polyethylene (XLPE) can quickly degrade.
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Product
Insulation and Continuity Tester
MIT2500
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The MIT2500 insulation and continuity tester has been designed for motor and cable testing, specialist applications and electrical testing applications, where operation voltages exceed 1000 V and higher insulation test voltages are needed. The MIT2500 offers both fixed range voltages of 50 V, 100V, 250 V, 500 V, 1000 V and 2500 V, as well as a variable range that allows any voltage between 50 V and 2500 V to be "dialled in". This is supported by the new test voltage feedback control, which maintains the output test voltage to within 2% of the selected range, even when under test.
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Product
DC Insulation Testing
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Diagnostic insulation testing today represents over a hundred years of constant development. When Sydney Evershed pioneered the first insulation tests in the late 19th century, the only measurable values were insulation at 500 volts and a basic continuity check. However, measurement techniques have continuously evolved to keep pace with new insulation technologies. From electronic design and household wiring to generators and power transmission systems, all different kinds of insulation must operate at a safe minimum value.
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Product
Utility Service And Leak Detection
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Accurately preparing the site to make sure you know where all the utility services run can pay handsomely by avoiding those expensive digger accidents.
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Product
Cable Sheath Fault Location
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Locating cable sheath faults is one of the last steps in cable testing, occurring after you have identified the existence of a cable fault via the identification procedure based on your specific site variables and the type of system you are working on
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Product
Photovoltaic
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For solar panel installations, problems such as insulation resistance degradation or issues with ground/earth continuity can pose a risk to safety as well as efficient operation. Continuous and predictive maintenance is essential to ensure regulatory compliance as well as the prevention of electrical hazards and fire risks, and enables operators to ensure the optimal performance of PV installations.
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Product
Oil Tan Delta Tester
OTD
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The Oil Tan Delta (OTD) is a laboratory instrument, which measures the Tan Delta, Resistivity and Relative Permittivity of insulating liquids. These tests give a wider picture of the overall quality of the insulating oil, and will indicate if there is any contamination. Megger has developed features of the OTD to ensure that productivity levels within laboratories are maximised. The microprocessor controlled inductive heater means that there is uniformity of temperature throughout the cell, in compliance with IEC 60247, and for cooling a fan effectively speeds up the cell cooling time. The instrument has a temperature measuring range of 10 to 110 C, with an accuracy of 1 C. It can be set to preheat before testing takes place. The automated oil drain facility negates the need to move the oil vessel. User safety is paramount and with this in mind, Megger have designed independent and dual redundant high voltage cut-off circuitry. If for any reason the user needs to abort the test, this can be done so by pressing any key, immediately terminating the test and removing the high voltage. The design of the cell components maximise oil fill rate but minimise turbulence in oil flow and eliminate trapping of air. With only 32 cell components, it is easy to assemble and disassemble.

















