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745
Transformer Management Relay
Manual Organization
Menu Navigation
1–2
Reading a lengthy instruction manual on a new product is not a task most people
enjoy. To speed things up, this introductory chapter provides guidelines for basic
relay usability. Important wiring considerations and precautions discussed in
Electrical Installation on page 3–6 should be observed for reliable operation.
Detailed information regarding accuracy, output relay contact ratings, and so forth
are detailed in Specifications on page 2–5. The remainder of this manual should be
read and kept for reference to ensure maximum benefit from the 745 Transformer
Management Relay. For further information, please consult your local sales
representative or the factory. Comments about new features or modifications for
your specific requirements are welcome and encouraged.
Setpoints and actual values are indicated as follows in the manual:
A2 METERING
LOSS OF LIFE
!"
This 'path representation' illustrates the location of a specific actual value or
setpoint with regards to its previous menus and sub-menus. In the example above,
the
HOTTEST-SPOT WINDING TEMPERATURE
sub-menu, which itself is an item in the
LOSS OF LIFE
item of
.
ACTUAL VALUES
Sub-menu levels are entered by pressing the MESSAGE # or ENTER key. When inside a
submenu, the $ MESSAGE or ESCAPE key returns to the previous sub-menu. The
MESSAGE % and MESSAGE & keys are used to scroll through the settings in a sub-
menu. The display indicates which keys can be used at any given point.
Using the Relay
Press the MENU key to access the header of each menu, which will be displayed in
the following sequence:
! SETPOINTS
! ACTUAL VALUES
! TARGET MESSAGES [!]
To access setpoints, press the MENU key until the display shows the header of the
setpoints menu, and then press the MESSAGE # or ENTER key to display the header for
the first setpoints page. The setpoint pages are numbered, have an 'S' prefix for
easy identification and have a name which provides a general idea of the settings
available in that page. Pressing the MESSAGE % and MESSAGE & keys will scroll through
all the available setpoint page headers. Setpoint page headers look as follows:
! SETPOINTS
S1 745 SETUP
To enter a given setpoints page, press the MESSAGE # or ENTER key. Press the
MESSAGE % or MESSAGE & keys to scroll through sub-page headers until the required
message is reached. The end of a page is indicated by the message
The beginning of a page is indicated by the message
To access actual values, press the MENU key until the display shows the header of the
actual values menu, then press the MESSAGE # or ENTER key to display the header for
the first actual values page. The actual values pages are numbered, have an 'A'
prefix for easy identification and have a name, which gives a general idea of the
http://www.GEindustrial.com/multilin
HOTTEST-SPOT WINDING TEMPERATURE
!
actual value is shown to be an item in the
A2 METERING
[!]
[!]
[!]
TOP OF PAGE
Using the Relay
menu, which is an
.
END OF PAGE
.
GE Multilin
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