Measure High Voltage Circuit Breakers with the Megger DLRO200-115

Posted by Protec Tech Team on

Megger_DLRO200The Megger DLRO200-115 Digital Low Resistance Ohmmeter checks and measures contact resistance in high voltage circuit breakers, disconnecting switches (isolators) or busbar joints. The Megger DLRO200-115 accurately measure resistances ranging from 0.1μΩ to 1Ω, at high currents.

A versatile instrument, The DLRO200-115 can provide test currents from 10 amps up to 200 amps, subject to the load resistance and supply voltage. For those applications that demand a smooth dc current, the DLRO  has extra filtering on the output to reduce mains frequency ripple and can drive 200 amps through a total current loop resistance of 11 milliohms. The filtered output of the unit also eliminates magnetic transients that could inductively trip a breaker’s control (bus differential relay), if left in the test circuit. 

Megger DLRO200-115 features:

  • Small and weighs less than 32 lbs (15kg)
  • Test currents from 10 A to 200 A d.c.
  • Filtered direct current output eliminates magnetic transients
  • 0.1 µΩ best resolution
  • On board memory for up to 300 test results and notes
  • RS232 port to download stored results or for real time output to a printer
  • Supplied complete with 16 ft. (5m) test leads and download software

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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