ITR MUPASZ 710 plus, User Manual, Page: 29 / 36

User manual
IU_M710P_MANUAL_05i00_ENG Strona 29 z 36
3.12.2. MAC - Manual Algorithms Check
Menu > Management > Diagnostics > MAC – Manual Algorithms Check
MAC – Manual Algorithm Check window allows to check
the correctness of algorithm operation, using simulated
measurement values. Execution of specified algorithm test
consists of programming selected analog values, needed to
assess the correctness of algorithm, forcing the test and
analysis of the records in the event log. After test start,
analog values are transferred to the algorithms, which
results in generation of algorithms response in accordance
with protection configuration (tripping, signaling, lock,
event recording). Validation of the test result is user’s
responsibility.
3.12.3. CBD - Circuit Breaker Diagnostics
Menu > Management > Diagnostics > CBD – Circuit breaker diagnostics
The
CBD – Circuit breaker diagnostics determines the
circuit breaker parameters during normal exploitation
without disconnecting it from the network. Basing on the
acquired
information the comprehensive breaker
diagnostics is carried out including its wear and possible
future malfunction. The CB state report is available through
the communication channels and user interface.
Items analyzed:

CB opening events number irrespective of the
cause and value of current in the disconnecting circuit,

CB opening events number caused by the over
current protection,

mean opening time from the last 10 opening
cycles,

maximal opening time.
3.13. Autotest
3.13.1. CCT - Cumulated Current Test
Menu > Management > Diagnostics > CCT – Cumulated Current Test
CCT – Cumulated Current Test is a mechanism monitoring the value of cumulated current for each phase.
Monitoring consists in adding measured each breaking current to the sum of the former ones. Breaker state
report is available via communication ports and user interface. In case the sum of breaking currents exceeds a
warning level indicating that the CB wear may cause a failure a warning is generated to carry out service
inspection or its replacement.