8.3.6
Fault Simulator (Sine Wave Generator)
For commissioning support and in order to analyze failures, the protective device offers
the option to simulate measuring quantities.
After setting [Device Planning] »Mode« = “Use”, the simulation menu can be found within
the menu branch [Service / Test Mode (Prot inhibit) / WARNING! Cont? / Sgen].
The simulation cycle consists of three states: Pre-fault, Failure, and Post-fault State
(Phase).
In addition to these three states, there is a short “reset stage” of about 100 ms
immediately before the Pre-failure state, and another one after the Post-failure state,
where all protection functions are deactivated. This is necessary to re-initialize all
protection modules and related filters and set them to a healthy new state.
pre
post
Failure Simulation
PreFault
FaultSimulation
PostFault
~100 ms
~100 ms
Sequencer_Z01
Sgen
The states are recorded by the Event and Disturbance Recorders as follows:
• 0 – Normal operation (i. e. without fault simulation)
• 1 – Pre-fault
• 2 – Fault
• 3 – Post-fault
• 4 – Reset / initialization phase
Within the menu branch [Service / Test Mode (Prot inhibit) / WARNING! Cont? / Sgen /
Configuration / Times], the duration of each phase can be set. In addition; the measuring
quantities to be simulated can be determined (e. g.: voltages, currents, and the
corresponding angles) for each phase (and ground).
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EMR-3MP0
8 Commissioning
8.3 Service and Commissioning Support
