4-22 F650 DIGITAL BAY CONTROLLER GEK-106310-AF
4.1 ENERVISTA 650 SETUP SOFTWARE CHAPTER 4: INTERFACES, SETTINGS & ACTUAL VALUES
4.1.7.6 Control elements menu
This option shows all protection elements available in the relay as shown in the following two tables (exact menu depends
on firmware version).
Table 4-7: Control elements menu, firmware version below 7.50
Control Elements
Setting Group Control elements can be used in either a single setting group (default mode-all units can
operate simultaneously) or three setting groups (elements are grouped in three
independent tables, with only one active at a given time).
Underfrequency Underfrequency unit (81U). Grouped element.
Overfrequency Overfrequency unit (81O). Grouped element.
Synchrocheck Synchronism check unit (25). Single element.
Autoreclose Recloser (79). Single element.
Breaker Failure Breaker failure (50BF). Single element
VT Fuse Failure Fuse Failure (VTFF). Single element.
Broken Conductor Broken or fallen conductor detection function (I2/I1). Grouped element.
Ratio between the negative sequence current, I2, and the positive sequence current I1. In
normal and ba
lanced load situations, this ratio is zero, while in severe load fault conditions,
an unbalance is produced and this ratio is increased.
Locked Rotor Locked rotor detection function (48). Grouped element.
Pulse Counters Pulse counters function. 8 counters provided.
Analog Comparators Analog comparator function. 20 analog comparators provided.
Frequency Rate of
Change
Frequency rate of change function (81R). Grouped element.
Load Encroachment Load Encroachment function. Grouped element.
Max. Number of Starts Maximum Number of Starts (66). Single element.
Digital Counters Up to 8 Digital Counters
Cold Load Pickup Cold Load Pickup Function. Not grouped, a single unit provided (Available starting on
firmware version 7.00).
PLC Timer Masks Configuration of masks that can be assigned to PLC timers
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