Table of Contents
Advertisement
2 GETTING STARTED
2 GETTING STARTED 2.1 USING THE FRONT PANEL DISPLAY
The following procedure describes how to maneuver through the 745 setpoints and actual values.
SS SETPOINTS HAVE NOT
SS BEEN PROGRAMMED!
SS ACTUAL VALUES
SS A1 STATUS
SS SETPOINTS
SS S1 745 SETUP
SS SETPOINTS
SS S2 SYSTEM SETUP
S PASSCODE
S[ENTER] for more
S END OF PAGE S1
S
S PREFERENCES
S[ENTER] for more
BEEPER:
Enabled
DEFAULT MESSAGE
INTENSITY:25%
GE Power Management
When powered on successfully, the SELF-TEST ERROR and MESSAGE
indicators will be on with this message on the display. It indicates that the 745
is in the Not Programmed state and safeguards against the installation of a relay
whose setpoints have not been entered. This message will remain until the
relay is explicitly put in the Programmed state.
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
key to display the 2
A C TU A L
headers. Press the
A C TU A L
page header. There are 4 actual values pages 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.
Press the
key and the header for the first page of setpoints appears.
S ETPO INT
This page contains setpoints to configure the 745 relay.
Press the
key to move to the next setpoints page. This page contains
S ETPO INT
setpoints for entering the characteristics of the power transformer being
protected. Repeatedly press the
page 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.
From the page one header of setpoints, press the
display the first sub-header. Setpoints under this sub-header are related to
passcode security. Note that the lower line of every sub-header message
reads [ENTER] for more and that there is a single scroll bar on the left side.
Press the
key repeatedly and display the remaining sub-header
M E SSA G E
messages in this page. The last message appears as shown.
By pressing the
M E SS AG E
message. Setpoints under this sub-header message allow the user to specify
keypad and display operation preferences.
Press
to display the first setpoint under the preferences sub-header. All
E S CA P E
setpoint and actual value messages have two parts. The first part ( BEEPER: ), is
displayed in uppercase and followed by a colon. This is the name or
description of the data. The second part ( Enabled ), either starts with an
uppercase character followed by lowercase characters or is a number followed
by units. This second part is the present value of the data.
To view the remaining setpoints associated with the preferences sub-header,
repeatedly press the
M E SSA G E
745 Transformer Management Relay
2.1 USING THE FRONT PANEL DISPLAY
nd
rd
, 3
, and 4
key once more to return to the 1
key to display the 3
S ETPO INT
key repeatedly, move to the second sub-header
key. The last message appears as shown.
2.1.1 MANEUVERING
2
th
actual values page
st
actual values
rd
th
th
th
, 4
, 5
and 6
key once to
M E SS AG E
2-1
Advertisement
Table of Contents
