2
G99-Specific Protection Settings
In general, all protection functions that are required for an Interface Protection device by
the EREC G99‑1‑6 are enabled in the [Device planning] menu. All other protection
functions are disabled by default, but can be enabled.
Besides this, only the protection functions that are needed for
protection are set to “active” by default. (See the parameter lists in the following
chapters.)
Furthermore, all the protection functions (for all these Types) are assigned to the circuit
breaker module in the menu [Control / SG / SG[1] / Trip Manager]. (See also
Specific Switchgear / Control Settings”
2.1
G99-Specific Voltage Protection Settings
The MRU4 features six instances of the voltage protection module, that are pre-
configured as follows:
• »V[1]« is pre-configured as an undervoltage protection according to the LV
requirements.
• »V[2]« is pre-configured as overvoltage protection stage 1 according to the LV
requirements.
• »V[3]« is pre-configured as overvoltage protection stage 2 according to the LV
requirements.
• »V[4]« is pre-configured as an undervoltage protection according to the HV
requirements.
• »V[5]« is pre-configured as overvoltage protection stage 1 according to the HV
requirements.
• »V[6]« is pre-configured as overvoltage protection stage 2 according to the HV
requirements.
This stage is optional for
applications and may be disabled for these.
During commissioning the user has to check the interconnection constraints and disable
the instances in the [Device planning] menu that are not needed for the application.
5
MRU4
MRU4-3.6-EN-G99
2 G99-Specific Protection Settings
