Table of Contents
Advertisement
2 GETTING STARTED
2 GETTING STARTED 2.1USING THE FRONT PANEL DISPLAY
The following procedure describes how to maneuver through the 745 setpoints and actual values.
1.
When powered on successfully, the Self-Test Error and Message LEDs will be on with this message on the display. It
indicates that the 745 is in the
have not been entered. This message will remain until the relay is explicitly put in the
SETPOINTS HAVE NOT
BEEN PROGRAMMED!
2.
Press any front panel key once and the header for the first actual values page appears. This page contains system and
relay status information. Repeatedly press the
Press the
key once more to return to the 1
ACTUAL
in all, numbered from A1 (the 'A' prefix indicating that it is an actual values page) to A4. Actual values page headers, as
with setpoint page headers, have double scroll bars on the left side of the message.
ACTUAL VALUES
A1 STATUS
3.
Press the
key and the header for the first page of setpoints appears. This page configures the 745 relay.
SETPOINT
SETPOINTS
S1 745 SETUP
4.
Press the
key to move to the next setpoints page. This page contains setpoints for entering the characteristics
SETPOINT
of the power transformer being protected. Repeatedly press the
headers and then back to the first setpoints page header. As you have discovered, there are 6 setpoint pages in all,
numbered from S1 (the "S" prefix indicating that it is a setpoint page) to S6.
SETPOINTS
S2 SYSTEM SETUP
5.
From the page one header of setpoints, press the
this sub-header are related to passcode security. Note that the lower line of every sub-header message reads
and that there is a single scroll bar on the left side.
for more
PASSCODE
[ENTER] for more
6.
Press the
MESSAGE
appears as shown.
END OF PAGE S1
7.
By pressing the
MESSAGE
message allow the user to specify keypad and display operation preferences.
PREFERENCES
[ENTER] for more
8.
Press
to display the first setpoint under the preferences sub-header. All setpoint and actual value messages
ESCAPE
have two parts. The first part (in this example,
colon. This is the name or description of the data. The second part (in this example,
case character followed by lowercase characters or is a number followed by units. This second part is the present
value of the data.
FLASH MESSAGE TIME:
4.0 s
GE Multilin
Courtesy of NationalSwitchgear.com
state and safeguards against the installation of a relay whose setpoints
Not Programmed
ACTUAL
st
key repeatedly and display the remaining sub-header messages in this page. The last message
key repeatedly, move to the second sub-header message. Setpoints under this sub-header
FLASH MESSAGE TIME:
745 Transformer Management Relay
2.1 USING THE FRONT PANEL DISPLAY
nd
rd
key to display the 2
, 3
, and 4
actual values page header. There are four (4) actual values pages
key to display the 3
SETPOINT
key once to display the first sub-header. Setpoints under
MESSAGE
), is displayed in uppercase and followed by a
2.1.1 MANEUVERING
state.
Programmed
th
actual values page headers.
rd
th
th
th
, 4
, 5
and 6
page
[ENTER]
), either starts with an upper-
4.0 s
2
2-1
Advertisement
Table of Contents
