CAT I Series - Circuit Breaker Analyzer & Timer

CAT I Series Circuit Breaker Analyzer & Timer

The CAT I series circuit breaker analyzers & timers are stand-alone or a PC-controlled digital instruments for circuit breakers condition assessments. The timing channels record closing and opening of the arcing, resistor and auxiliary contacts.

CAT I series records graphs of both, trip and close coil currents and displacements of the HV and MV circuit breaker moving parts. The main contact channels can also measure the resistance value of the preinsertion resistors (if present in the circuit breaker).

Test results can be downloaded to a USB memory stick or saved to internal memory.

The CAT I series internal memory can store up to 500 test results (numerical and graphical data).

Applications:

Simultaneous timing measurement of up to 6 main contacts (2 breaks per phase) including preinsertion resistors (if present in the circuit breaker) and 3 auxiliary contacts

Resistance measurement of the pre-insertion resistors (if present in the circuit breaker)

Evaluation of synchronization between the circuit breaker poles

A measurement of the coil currents, simultaneously for 2 coils

Evaluating the state of the substation’s batteries by graphically showing the voltage value

A measurement of displacement, contact wipe, over-travel, rebound, damping time and average velocity of the breaker’s moving parts

“First trip” test