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3 HUMAN INTERFACES. SETTINGS & ACTUAL VALUES 3.1 ENERVISTA 650 SETUP SOFTWARE INTERFACE
3.1.8.4 CONTROL ELEMENTS
This option shows all the control elements available in the relay as shown in Table 3–11:. Some of the elements are
grouped ones such as underfrequency, overfrequency and broken conductor.
Table 3–11: GENERAL OVERVIEW OF CONTROL ELEMENTS MENU:
CONTROL
ELEMENTS
Setting Group
Underfrequency
Overfrequency
Synchrocheck
Breaker Failure
VT Fuse Failure
Pulse Counters
Analog Comparators
Frequency rate of
change
Loss of Mains
Loss of Excitation
Accidental
Energization
3.1.8.5 INPUT/OUTPUTS
Section that contains the settings for all input and output boards and the Force Outputs and Virtual inputs activation tools.
Table 3–12: GENERAL OVERVIEW OF "INPUTS/OUTPUTS" SETTINGS MENU.
INPUTS/
OUTPUTS
Contact I/O
Force Outputs (*)
Virtual Inputs (*)
Options enabled only in On-line mode are marked as (*). Options enabled only in Off-line mode are marked as (**)
This section shows the settings related to inputs and outputs for the different boards available in G650 (F, G, H, J).
Table 3–13: GENERAL OVERVIEW OF "INPUTS/OUTPUTS>CONTACT I/O" SETTINGS MENU.
CONTACT I/O
GEK-113328A
G650 units incorporate a flexible grouping capability for protection units.
This means that protection units can be used in either single setting
group (default mode-all units can operate simultaneously) or three
setting groups (in this mode, protection units are grouped in three
independent tables, with only one of them active at a given time).
Protection element grouping involves only Protection elements together
with broken conductor detection and over and under frequency, which
are usually considered as control elements. The rest of control elements
such as fuse failure, breaker failure, synchronism, and breaker settings
are not involved in the tabled groups concept.
Underfrequency unit (81U). Grouped element
Overfrequency unit (81O). Grouped element
Synchronism check unit (25). Not grouped, a single unit provided
Breaker failure (50BF). Not grouped, a single unit provided. Enhanced
models only.
Fuse Failure (VTFF). Not grouped, a single unit provided. Enhanced
models only.
Pulse counters function. 8 counters provided.
Analog comparator function. 20 analog comparators provided.
Frequency rate of change function (81R).Grouped element.
Loss of Mains (78V). Grouped element. Enhanced models only.
Loss of Field (40). Grouped element
Inadvertent generator energization (50/27). Grouped element
Inputs and outputs settings for all boards in G650. The I/O settings
configuration can only be performed through EnerVista 650 Setup, not
HMI available.
This menu allows activating each contact output in the relay, to facilitate
maintenance testing. On line mode only.
This menu allows operating virtual inputs. These variables are used as
inputs to logic schemes configured in the relay. Virtual inputs can be
operated in a latched mode (32 latched virtual inputs) or in Self-reset
mode (32 self reset virtual inputs).
G650 Generator Protection & Control System
3
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