Breakers; Breaker Control - GE D90 Plus Instruction Manual

CHAPTER 8: AUTOMATION

Breakers

Breaker control

PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
passed to the automation function and vice-versa. The D90
shared operands. This allows the automation function access to a large variety of
analog measurements resident in the protection functions.
• Virtual inputs and outputs — A total of 64 points are available in the controller for
storage of the intermediate of final results of math processing (defined as virtual
analog outputs).
This section describes the breaker control and breaker interlocking features for each of the
six available breakers.
The breaker control element contains the auxiliary logic for control of circuit breakers
required for SCADA and for the front panel interface. The control function incorporates
select-before-operate. Selection is required before a control action is permitted. Selecting a
device inhibits service to other clients. Selection is also inhibited if an operation is in
progress. The logic permits interlocking to be bypassed if required.
Select the Settings > Automation > Breaker > Breaker Control menu to open the breaker
control configuration window.
Figure 360: Breaker control configuration settings window
The following settings are available for each breaker.
Function
Range: Enabled, Disabled
Default: Enabled
This setting enables or disables breaker control.
HMI Control
Range: Enabled, Disabled
Default: Enabled
This setting enables breaker control through the front panel interface and populates the
front panel display with breaker control soft-keys.
BREAKERS
Plus
can store a total of 64
431