Microgrid (+Ug Option) - Danfoss EC-C1700B-420 User Manual

User Guide
EC-C1700B-420
Product overview
22 | © Danfoss | June 2023
Active Front End application example
Active Front End protections and limits
Protections
Software overcurrent trip (configurable)
Hardware overcurrent trip (Fixed 750 Apeak)
Short circuit trip
Software overvoltage trip (configurable)
Hardware overvoltage trip (Fixed 1300 V
Inverter overtemperature trip (measured)
Inverter overtemperature trip (estimated)
Over frequency trip
Under frequency trip
Grid loss trip
Limits
Electrical power limit positive (DC to AC)
Electrical power limit negative (AC to DC)
DC current limit positive (DC to AC)
DC current limit negative (AC to DC)
AC current limit (any direction)
Overvoltage controller (DC-link voltage)
Undervoltage controller (DC-link voltage)

Microgrid (+UG option)

Microgrid (+UG) option is used for creating a stand-alone island grid.
Microgrid application example
Microgrid protections and limits
Protections
Hardware overcurrent trip (Fixed 750Apeak)
Short circuit trip
Software overvoltage trip (configurable)
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DC
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