ABB Switzerland Ltd REG 316*4   1MRB520049-Uen / Rev. B
1-4
·  invers time ground fault overcurrent (I0-Invers)
·  breaker failure protection (BreakerFailure)
·  supplementary logic functions such as
·  supplementary user logic programmed using CAP316
(function plan programming language FUPLA). This
requires systems engineering.
·  logic
·  timers
·  metering
·  debounce.
The following measuring and monitoring functions are also avail-
able:
·  single-phase measuring function UIfPQ
·  three-phase measurement module
·  three-phase current plausibility
·  three-phase voltage plausibility
·  disturbance recorder.
The scheme includes an event memory.
The allocation of the opto-coupler inputs, the LED signals and
the auxiliary relay signal outputs, the setting of the various pa-
rameters, the configuration of the scheme and the display of the
events and system variables are all performed interactively using
the menu-driven HMC (man/machine communication).
REG 316*4 is equipped with serial interfaces for the connection
of a local control PC and for remote communication with the
station control system.
REG 316*4 is also equipped with continuous self-monitoring and
self-diagnostic functions. Suitable testing devices (e.g. test set
XS92b) are available for quantitative testing.
REG 316*4 can be semi-flush or surface mounted or can be in-
stalled in an equipment rack.