GE Multilin G650, Manual

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GEK-113285A G650 Generator Protection & Control System 5-135
5 SETTINGS 5.8 RELAY CONFIGURATION
5
5.8.7 SWITCHGEAR
This menu is used for defining the SWITCHGEAR elements to be controlled by the relay. A switchgear element can be a
breaker, a line selector switch, a grounding selector switch, a busbar selector switch, etc. It is possible to define up to 16
switchgear elements. The settings are as follows:
•
Select
checkbox: enables or disables the control of a new switchgear element
•
Contacts
setting: allows selecting which type of contact is used for monitoring the status (open/closed) of the element.
The selection can be:
52a
(contact type A, showing the same status as the represented element),
52b
(opposite status
to the represented element),
52a+52b
(both types of contacts are used),
NONE
(no status monitoring).
•
Opening Time
setting: defines the maximum opening time of an element. It is used for issuing an opening time failure
signal if the element opening is not produced within this time.
•
Closing Time
setting: defines the maximum closing time of an element. It is used for issuing a closing time failure
signal if the element closing is not produced within this time.
•
Contact A
checkbox: allows selecting which operand or combination of operands activate the type A contact status.
Usually it will be an input contact wired to type A contact of the element (Breaker/selector switch). This column and the
next two columns are only active if the selected contact type in the Contacts column is
52a
or
52a+52b
.
•
OR
checkbox: selects a group of operands instead of a single one. The relay performs and OR of the signals, and its
output produces operation.
•
NOT
checkbox inverts the status of the signal selected in column
Contact A
.
•
Contact B
checkbox: allows selecting which operand or combination of operands activates the type B contact status.
Usually it will be an input contact wired to type B contact of the element (Breaker/selector switch). This column and the
next two columns are only active if the selected contact type in the Contacts column is
52b
or
52a+52b
.
•
OR
checkbox selects a group of operands instead of a single one. The relay performs OR of the signals, and its
output produces operation.
•
NOT
checkbox inverts the status of the signal selected in column
Contact B
.
•
Open text
setting: allows associating a text to the control event associated to the element opening.
•
Close text
setting: allows associating a text to the control event associated to the element closing.
•
Error 00 text
setting: in case of using double contact for the switchgear element status (
52a+52b
), this setting allows
to associate a text to the Error00 internal status, this means, when both contacts are inactive during a period longer
than the associated to the opening or closing Operation, depending on which Operation is being performed.
•
Error 11 text
setting: in case of using double contact for the switchgear element status (
52a+52b
), this setting allows
to associate a text to the Error11 internal status, this means, when both contacts are active during a period longer than
the associated to the opening or closing Operation, depending on which Operation is being performed.
•
ALARM
setting: enables the issue of an alarm in the event of a close, open, 00-type, 11-type error. If it is configured as
an alarm.
•
Opening init
setting: this setting selects which operand or combination of operands indicate the initiation of an
opening operation, in order to allow the follow up of the operation and generate the corresponding alarms if the
operation is not successful. The operation bit signal used to launch the opening init must be configured in the
operations tab inside relay configuration.
•
Closing init
setting: this setting selects which operand or combination of operands indicate the initiation of a closing
operation, in order to allow the follow up of the operation and generate the corresponding alarms if the operation is not
successful. The operation bit signal used to launch the opening init must be configured in the operations tab inside
relay configuration.