ISA PME-500 Circuit Breaker Analyser

The PME-500 saves testing time and improves testing productivity.

The control of the PME-500-TR Circuit Breaker Analyser is by a touch screen panel. This allows test parameters to be entered and gives a visual display of the test results in graphic and numeric format. A built-in thermal printer enables test results to be printed immediately.

The PME-500-TR circuit breaker analyzer has been designed to simplify tests of contact synchronism, coil current analysis and contact resistance measurement on medium voltage circuit breakers, or in any case, on circuit breakers with a single contact per pole.

Its use for circuit breakers with multiple contacts per pole is not advised, although this might occasionally be done by means of a more laborious process. The use of the touch screen panel makes operation of the unit and data entry processes easier and more intuitive. The multi-pole connecting blocks have been duplicated with standard banana-type connectors in case any of the multi-wire test leads are accidentally damaged, lost or made unavailable in any way.

The internal battery supply makes the equipment independent from the low voltage AC supply, not always available or close enough to the place of operation. The contact resistance measurement is performed on the three poles at a time using the four-wire method and with an outstanding resolution of 0.1 micro-ohms under a measurement current of 10 A.