Item
Description
Peer to Peer Lockout
The Delta VAr Peer to Peer Paralleling feature
includes the following alarms which will activate the
"Peer to Peer Lockout" Alarm:
•
Sympathy Lockout – actuates when a control
detects that another control in the network has
locked out due to a Tie Breaker Status Conflict
Lockout or a Delta VAr Limit Lockout.
•
Initiator Communications Lockout – actuates
when an Initiator fails to receive the expected
messages for three consecutive Peer to Peer
Update Frames.
•
Reactive Current Limit Lockout – actuates
when the calculated Reactive Current value is
greater than the configured Reactive Current
limit. This lockout/alarm can only be cleared by
the user.
•
Non-Initiator Detection Lockout – When the
control powers up in Initiator Mode, the control
will wait for approximately 65 seconds to allow
all the GOOSE messages from all the Non-
Initiators in the network to reach the Initiator.
Once all GOOSE messages have been
received, the Initiator will start its normal
algorithm. If within that initial 65 second period
the Initiator does not receive all the GOOSE
messages it expected, it will enter the Initiator
Lockout state. This lockout/alarm can only be
cleared by the user.
•
Breaker Status Conflict Lockout – activates
when a control detects that it's status for a tie
breaker, shared with another control,
disagrees with that unit's status for the same tie
breaker. The Breaker Status Conflict Lockout
alarm is only applicable in the "Single" and
"Ring Bus" topology.
•
Message Response Time Lockout – actuates
when a Non-Initiator has not received all the
expected GOOSE messages within the
specified time period for three consecutive
update periods.
RTN Fail
The RTN Fail alarm will actuate when the "Maximum
RTN operations before Alarms" setting has been
exceeded.
Op Count Signal
The total number of operations has exceeded the
Operations Counter Alarm Limit setting.
There are three available states designated by color for each of the Alarm Status elements:
•
Gray with Dark Gray Text – Alarm disabled.
•
Gray with Black Text – Alarm enable and condition not met
•
RED – Alarm enabled and condition exists
1VAC388793-MB A
Section 4
TCC600
TCC300
159
User Manual
Summary of Contents for TCC300
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