Eaton EFX48 e-Fuse Series, Инструкция по установке и эксплуатации

Страница: 99 / 161

EFX48 e-Fuse System Operation
Copyright © 2019 Eaton Corporation. All Rights Reserved.
IPN March 2019
99
If the above conditions are not met then the equalisation is not performed.
If equalise is enabled but prevented by one or more of the qualifying conditions, a time/date
stamped entry entered in the event log and the system will wait for the next scheduled
equalisation.
If the conditions are met then the rectifier voltage is raised to the equalise voltage for the
specified duration at the end of which the bus voltage is set back the float voltage. The
equalise active alarm is active during the equalisation.
If the equalise is performed without being aborted then the equalisation is deemed to have
completed and a time/date stamped entry entered in the event log.
If during an equalisation any string is turned on or off, an ac fail occurs, the system
overcurrent flag becomes active, or a string trips then the equalisation is aborted and a
time/date stamped entry entered in the event log. The system will wait for the next
scheduled test and the equalise active alarm is cancelled.
If a test is aborted or prevented, or if an equalisation has just occurred a further scheduled
equalisation will be ignored for a period of 24hrs unless the equalisation enable state is
toggled from on to off to on.
The reported ‘batteryEqualisationState ‘ will be ‘off’ if equalisation is disabled. It will be
waiting /active/prevented /aborted /complete if enabled, with
prevented/aborted/complete held for 24hours after being set unless the equalisation enable
state is toggled from on to off to on after which it will return to waiting.
During equalise the system high float and high load alarm thresholds are both raised above
the equalise voltage setting by the difference between equalise and nominal bus voltages. On
completion of the equalise process the thresholds are held at that level until the bus voltage
is 0.25V less than the unforced high float setting.