Breaker Control - GE N60 Instruction Manual

Network stability and synchrophasor measurement system
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CHAPTER 4: INTERFACES
4.
Put the clear Lexan front cover back into place.
The following items are required to customize the display:
Printer
Microsoft Word 97 or later software for editing the template
1 each of: 8.5" x 11" white paper, exacto knife, ruler, custom display module (GE part number: 1516-0069), and a
custom module cover (GE part number: 1502-0015)
To customize the display:
1.
Open the LED panel customization template with Microsoft Word. Add text in places of the LED x text placeholders on
the template. Delete unused place holders as required.
2.
When complete, save the Word file to your computer for future use.
3.
Print the template(s) to a local printer.
4.
From the printout, cut-out the Background Template from the three windows, using the cropmarks as a guide.
5.
Put the Background Template on top of the custom display module (GE part number: 1513-0069) and snap the clear
custom module cover (GE part number: 1502-0015) over it and the templates.

4.2.9 Breaker control

The N60 can interface with associated circuit breakers. In many cases the application monitors the state of the breaker,
that can be presented on faceplate LEDs, along with a breaker trouble indication. Breaker operations can be manually
initiated from the faceplate keypad or automatically initiated from a FlexLogic operand. A setting is provided to assign
names to each breaker; this user-assigned name is for the display of related flash messages. These features are provided
for two breakers; the user can use only those portions of the design relevant to a single breaker, which must be breaker 1.
It is assumed in the following discussion that the
setting is "Enabled" for each breaker.
FUNCTION
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
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
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
SETTINGS  SYSTEM SETUP  BREAKERS  BREAKER 1(2)  BREAKER
SETTINGS  SYSTEM SETUP  BREAKERS  BREAKER 1(2)  BREAKER
and
keys. The
USER 2
USER 3
USER 2
FRONT PANEL INTERFACE
key performs the
USER 1
key manually closes the breaker, and
4
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