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Low Resistance Ohmmeter Measurements Utilizing the Megger DLRO200-115

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Industries that consume large amounts of electrical power should include low resistance ohmmeter measurements in their maintenance operations. Not only does abnormally high resistance cause unwanted heating, possibly leading to danger, but it also causes energy losses which increase operating costs.

In addition, there are industries that have critical specifications on bond connections to ensure solid connections to “ground beds.” Poor connections reduce the effectiveness of the ground bed and can cause significant power quality-related problems and/or catastrophic failure in the event of major electrical surge.

Industries include:

• Power generation and distribution companies

• Chemical plants

• Refineries

• Mines

• Railroads


• Telecommunications companies

• Automotive manufacturers

• Aircraft manufacturers

• Industries with UPS battery back-up systems

The Megger DLRO200-115 Digital Low Resistance Ohmmeter is designed to check and measure contact resistance in high voltage circuit breakers, disconnecting switches (isolators), busbar joints, or for any low resistance measurement. The Megger DLRO200-115 Digital Low Resistance Ohmmeter accurately measures resistances ranging from 0.1µΩ to 1Ω, at high currents.

Each Protec office maintains a full complement of electrical test and measurement equipment. Offering equipment from all of the premiere manufacturers for rent, lease or purchase, Protec has the electrical testing equipment you need to get the job done.

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