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
Cable Locators, Route Tracers And Height Meters
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CHM cable height meters are easy to use, handheld devices which use ultrasound to determine the height of up to six overhead cables and wires. They are designed to measure cable sag, overhead clearance and cable heights up to 23 m, with separate products dedicated to the power and telecommunications markets. As a safe alternative to telescopic ranging sticks, there is no physical connection to the cables.
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Product
Cable Fault Locating Equipment
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Commonly used to test underground coaxial and twisted pair cabling, along with transmission lines and other industrial electrical cables.
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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
Primary Injection Test Systems
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Primary current injection testing is utilised in high current/high voltage scenarios found at large electrical installations such as substations. A large current (between 100A and 20,000A depending on system specifications and test requirements) is injected directly on the primary side of the electrical system such as a circuit breaker. The objective of the test is to identify how the system operates under various levels of current load.
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Product
VLF Insulation Testing
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VLF testing uses very low frequencies as part of an AC cable maintenance routine. VLF testers are smaller and more practical than AC testers but output the same amount of power as a 50 Hz mains device. This combination of size and power makes Very Low Frequency cable testing perfect for testing longer sections of cable and apparatus
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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
Cable Fault and Test System Vans
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Whether you are working on-site, in the countryside or an urban environment, having the right equipment available when conducting fault location operations is vital. When the correct tools can be accessed easily, fault-location time speeds up dramatically, and faults can be dealt with more efficiently. Megger’s range of cable test vans offer solutions to the challenges of fault location in the real world, no matter the environment. Our test van systems have been developed in collaboration with end users to ensure that they live up to the standards of daily fieldwork. Our vans are designed to be adaptable to the end users needs so that the most appropriate tests may be carried out for the cable in question, regardless of whether it is low, medium or high voltage.
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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
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.
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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
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
Multimeters and Clampmeters
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The complete range of analog, digital and analog/digital multimeters provide the solution to electrical and electronic fault finding and testing.
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Product
Motor and Generator Testing
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Megger loop testers offer both traditional measuring techniques and state of the art “non-RCD Tripping” technology.
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Product
Thumpers and Cable Fault Location
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Cable testing can be broken down to different steps of the process, starting with a time domain reflectometer test to look for an incident signal on the line or, in some high resistance situations, VLF testing. These tests will identify a fault, allowing you to move on to pre-locating it. In some low resistance faults this will occur alongside the identification via the TDR.

















