DuraStation™ EV Charger User Manual
10 GE Industrial Solutions ©2014 GE Company All Rights Reserved
3.3 Electronics
The Electronics Control Unit in the DuraStation integrates Control Pilot Functions, Metering, Overload
monitoring, ground fault protection and all local monitoring.
3.3.1 Supplemental overload Protection
The controller will open the main power contactor at approximately 120% of nominal current.
3.3.2 Ground Fault protection
DuraStation includes 15 - 20 mA GF protection per UL 2231. The EVSE provides fault indication if a
ground fault has occurred. The fault will automatically reset per UL 2231 if the fault has occurred
after charging has begun. This reset will occur after 15 minutes. Only 4 automatic retries can occur
in a charging session. Unplugging the EVSE connector from the vehicle will close out a charging
session and reset the number of automatic retries. If the ground fault is detected immediately after
charging, the EVSE will stop charging and indicate a fault.
3.3.3 Ground Monitor Interrupter
This feature is not included in DuraStation.
3.3.4 Ventilation Fault
If a vehicle requests facility ventilation by taking the control Pilot to State D as defined by SAE J1772,
the DuraStation will not charge the vehicle and issue a fault indication on the LED Ring and fault icon.
The fault will be cleared once the EVSE connector is removed from the vehicle. State D charging can
be enabled by configuration … check the box next to “Allow vehicles requiring ventilation to charge”
on the COMMON page of the configuration tool.
3.3.5 Metering
DuraStation measures the voltage, current, power and Energy consumed by the EV during a charge
and the measured data is available through WattStation Connect. Charging current and energy
consumed are shown on the stations VFD display during the charge and after charging completes
prior to vehicle disconnect.
3.3.6 RFID
The RFID reader will scan RFID cards and pass the scanned information to WattStation Connect for
user authorization.
The RFID reader is certified as an intentional radiator per FCC Part 15 Subpart C rules and has been
granted the following Federal Communication Commission and Industry Canada (Industrie Canada)
identification numbers.
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