Showing results: 16 - 30 of 60 items found.
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Megger Group Ltd.
Cable testing and diagnostics provides information about the cable’s global condition (e.g. the cable’s overall insulation system), and will reveal localised problems, such as poor joints and terminations; it will also reveal localised weak spots in the insulation. Various cable tests are carried out to spot potential failures before they can cause severe outages. Megger cable test equipment provides access to all of the technology needed to make informed cable management decisions through the different stages of the cable’s life cycle.
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Megger Group Ltd.
From Megger, these highly accurate, easy to operate instruments measure resistance with resolution as fine as 0.1 micro-ohm. Digital micro-ohmeters and DLROs measure contact resistance of switch and circuit breakers, aircraft frame bonds, and rail and pipeline bonds just to name a few of the applications. Megger has models available for testing using test currents from 0.5 mA to 200 amps covering a multitude of applications that require precise low-resistance measurements.
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Megger Group Ltd.
Ensuring an effective earth system is essential in a telecommunications system, and Megger is expert in earth testing having been there right from the start. These days Megger offers top end systems for design and soil surveys as well as tough easy to use testers for field engineers. We have tried to make the testers self checking as much as we can, to allow you to concentrate on collating and understanding the results.
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Megger Group Ltd.
Locating high and low impedance faults on paired metallic cables is a crucial yet often difficult task for a telecoms engineer. Megger designs TDRs specifically for the communications industry, which makes each unit a safe, application specific tester that can be used on virtually all communications cable types. The wide range of TDRs makes it easy to choose the tester with the resolution and range you need.
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Megger Group Ltd.
Commonly used to test underground coaxial and twisted pair cabling, along with transmission lines and other industrial electrical cables.
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Megger Group Ltd.
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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Megger Group Ltd.
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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Megger Group Ltd.
With the increasing dependency of back up systems on battery strings, and the escalating cost of replacing batteries, instrumentation and software systems that can measure, trend and manage the life-cycle of cells is a cost effective option.
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Megger Group Ltd.
When a fault such as a short circuit or current overload is detected by a protective relay, a trip impulse is sent to the circuit breaker. The circuit breaker must function as specified and interrupt the current as soon as possible or severe damage may occur. The damage caused by a malfunctioning circuit breaker can often be catastrophic, resulting in significant damage to the electrical system.
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Megger Group Ltd.
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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Megger Group Ltd.
In response to ever growing industry requirements, Megger offers a sophisticated line of electrical product testing equipment.
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Megger Group Ltd.
Megger multifunction installation testers are capable of performing various electrical tests.
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Megger Group Ltd.
When a high current passes through a pair of mechanically independent metallic contacts, the resistance must be as low as possible. An increase in resistance can lead to additional degradation, as I2R losses will cause local heating of the contact surfaces. Our range of micro-ohmmeters measure both steady state and dynamic low resistance values. With test currents up to 600A available, logging and trending are also available on some models. We ensure that our Contact Resistance tests sets are portable, making them suitable for field measurements. Our contact resistance testers’ portability makes them ideal for a vast range of resistance testing across the entire LV, MV HV and EHV spectrum.
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Megger Group Ltd.
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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Megger Group Ltd.
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.