GE D60 Instruction Manual page 151

CHAPTER 4: INTERFACES
4.2.9.1 Control mode selection and monitoring
Installations can require that a breaker be operated in the three-pole only mode (3-pole), or in the one and three-pole (1-
pole) mode, selected by setting. If the mode is selected as three-pole, a single input tracks the breaker open or closed
position. If the mode is selected as one-pole, all three breaker pole states must be input to the relay. These inputs must be
in agreement to indicate the position of the breaker.
For the following discussion it is assumed that the
setting is "Enabled" for each breaker.
1(2) PUSH BUTTON CONTROL
The D60 has features required for single-pole operation. Inputs that trip individual breaker poles and cause a breaker
reclose are passed directly to this element.
4.2.9.2 Faceplate (user key) control
After the 30 minute interval during which command functions are permitted after a correct command password, the user
cannot open or close a breaker via the keypad. The following discussions begin from the not-permitted state.
4.2.9.3 Control of two breakers
For the following setup example, the (Name) field represents the user-programmed variable name.
For this example, the relay is connected and programmed for both breaker 1 and breaker 2. The
selection of which breaker is to be operated by the
the key manually opens the breaker.
USER 3
ENTER COMMAND
PASSWORD
Press USER 1
To Select Breaker
BKR1-(Name) SELECTED
USER 2=CLS/USER 3=OP
(1)
USER 2 OFF/ON
To Close BKR1-(Name)
(2)
USER 3 OFF/ON
To Open BKR1-(Name)
(3)
BKR2-(Name) SELECTED
USER 2=CLS/USER 3=OP
4.2.9.4 Control of one breaker
For this application, the relay is connected and programmed for breaker 1 only. Operation for this application is identical to
that described in the previous section for two breakers.
D60 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
SETTINGS  SYSTEM SETUP  BREAKERS  BREAKER 1(2)  BREAKER
and
USER 2 USER 3
This message appears when the USER 1, USER 2, or USER 3 key is pressed and a COMMAND
PASSWORD is required, that is, if COMMAND PASSWORD is enabled and no commands have been
issued within the last 30 minutes.
This message appears if the correct password is entered or if none is required. This message
displays for 30 seconds or until the USER 1 key is pressed again.
This message displays after the USER 1 key is pressed for the second time. Three possible actions
can be performed from this state within 30 seconds as per the following items (1), (2) and (3).
If the USER 2 key is pressed, this message appears for 20 seconds. If the USER 2 key is pressed
again within that time, a signal is created that can be programmed to operate an output relay to
close breaker 1.
If the USER 3 key is pressed, this message appears for 20 seconds. If the USER 3 key is pressed
again within that time, a signal is created that can be programmed to operate an output relay to
open breaker 1.
If the USER 1 key is pressed at this step, this message appears showing that a different breaker is
selected. Three possible actions can be performed from this state as per (1), (2) and (3). Repeatedly
pressing the USER 1 key alternates between available breakers. Pressing keys other than USER 1, 2,
or 3 at any time cancels the breaker control function.
USER 1
keys. The key manually closes the breaker, and
USER 2
FRONT PANEL INTERFACE
key performs the
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