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DV-Power CAT-II Series Circuit Breaker Analysers

DV-Power CAT-II Series Circuit Breaker Analysers
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Circuit Breaker Analyzer & Timer (CAT) series are standalone or PC controlled digital instruments for circuit breakers’ condition assessment. They enable simultaneous measurements of up to 12 main contacts (4 breaks per a phase) including pre-insertion resistors and 6 auxiliary contacts.

CAT series instruments record graphs of both, the open 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 pre-insertion resistors (if present in the circuit breaker).

The user can select any desired operational mode: Close (C), Open (O), Close-Open (C-O), Open-Close (O-C), Open-Close-Open (O-C-O). Test results can be stored in the instrument’s internal memory, an USB memory stick or printed on a thermal printer (optional accessory) in both tabular and graphical form.

CAT instruments are supplied with DV-Win software, which provides full control of all CAT functions from a PC, as well as acquisition and analysis of test results.

The second series of CAT instruments utilizes the latest technological enhancements for safe and fast testing, with unique technical capabilities for additional diagnostics of circuit breakers. Sophisticated design ensures efficient and reliable operations in high-voltage substations and industrial environments.

  CAT35 CAT64A CAT65 CAT66 CAT124A CAT125 CAT126
Main contacts timing channels 3 6 6 6 12 12 12
Preinsertion resistor contacts timing channels 3 6 6 6 12 12 12
Auxiliary contacts timing channels 6 6 6 6 6 6 6
Coil control yes yes yes yes yes yes yes
Coil current measurement channels 4 4 4 4 4 4 4
Analog input channels 4 4 4 4 4 4 4
Transducer input channels 3 3 3 3 3 3 3
Thermal printer (built-in) OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL
“First trip” test yes yes yes yes yes yes yes
Contact resistance measurement 200 A no 200 A 500 A no 200 A 500 A
Dynamic resistance measurement 200 A no 200 A 500 A no 200 A 500 A

YES-YES, NO-NO, OPTIONAL-OPTIONAL

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DV-Power CAT-I Series Circuit Breaker Analysers

Circuit Breaker Analyzer & Timer (CAT) series are standalone or PC controlled digital instruments for circuit breakers’ condition assessment. They enable simultaneous measurements of up to 12 main contacts (4 breaks per a phase) including pre-insertion resistors and 6 auxiliary contacts.
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