Minimális megszólalási áram kiterjesztése az alsó tartományban

Kategória: EuroProt+ HW platform

A legtöbb árammérésen alapuló védelmi funkció minimális megszólalási értéke a névleges áram 10-20%-a k&o...

Transformer differential protection - testing with earth faults

Kategória: EuroProt+ Protection application

Vector group of the transformer is YyO, the differential protection function trips by √3 times higher value than expected. What is the reason for it? Protecta uses delta-transformation matrices...

About trip assignment

Kategória: EuroProt+ Protection application

What is the way from the trip signal of a function block to any trip contact? You can find here a short summary about this topic. For significantly more details please visit that link: https://www.pr...

Are the EuroProt+ devices suitable for linearised current transformers (TPY,TPZ)?

Kategória: EuroProt+ Protection application

The current transformer modules of the EuroProt+ devices are suitable for measuring the currents from linrearised primary transformers. However, we have not tested the function algorithms with this ty...

Modes of the device

Kategória: EuroProt+ Control application

The different modes of the EuroProt+ devices are defined in the standard IEC 61850. These are: On mode: normal operation mode of the device. Blocked mode: every function blocks are working (so you c...

Under/overvoltage function does not start at the set limit

Kategória: EuroProt+ Protection application

Voltage function blocks in configurations for MV networks have phase-to-phase voltages as inputs. The set limit concerns also phase-to-phase voltages. That should be taken into considerations also by ...