Functions
2.1 General
SIPROTEC, 7VK61, Manual
C53000-G1176-C159-3, Release date 05.2009
24
2.1
General
A few seconds after the device is switched on, the initial display appears in the LCD. A selection of measured
values is displayed.
Configuration of the device functions are made via the DIGSI software from your PC. The procedure is de-
scribed in detail in the SIPROTEC 4 System Description. Entry of password No. 7 (for setting modification) is
required to modify configuration settings. Without the password, the settings may be read, but may not be mod-
ified and transferred to the device.
The function parameters, i.e. settings of function options, threshold values, etc., can be entered via the keypad
and display on the front of the device, or by means of a personal computer connected to the front or service
interface of the device utilising the DIGSI software package. The level 5 password (individual parameters) is
required.
2.1.1
Functional Scope
2.1.1.1
Configuration of the Scope of Functions
The 7VK61 relay contains a series of protective and additional functions. The hardware and firmware provided
is designed for this scope of functions. In addition, the command functions can be matched to the system con-
ditions. Individual functions can be activated or deactivated during the configuration procedure. The interaction
of functions may also be modified e.g., the reclosing function can be implemented with or without synchronisa-
tion. If a function is not required, it can be deactivated during configuration.
The available protection and supplementary functions can be configured as
Enabled
or
Disabled
. For some
functions, a choice may be presented between several options which are explained below.
Functions configured as
Disabled
are not processed by the 7VK61. There are no indications, and corre-
sponding settings (functions, limit values) are not displayed during setting.
Note
The functions and default settings available depend on the order variant of the device.
2.1.1.2
Setting Notes
Configuring the functional scope
The scope of functions with the available options is set in the
Functional Scope
dialog box to match plant re-
quirements.
Most settings are self-explanatory. The special cases are described below.
Special Cases
If use of the setting group changeover function is desired, address
103
Grp Chge OPTION
should be set to
Enabled
. In this case, up to four different groups of settings may be changed quickly and easily during device
operation (see also Section 2.1.4). With the setting
Disabled
only one parameter group is available.
Address
106
VT CONNECTION
determines how the voltage transformers are connected.
VT CONNECTION
=
3phase
implies that the three phase voltages are connected in wye connection. Select
VT CONNECTION
=
1phase
if the device is connected to only
one
voltage transformer. In this case, the voltage connected to
Summary of Contents for Siprotec 7VK61
Page 8: ...Preface SIPROTEC 7VK61 Manual C53000 G1176 C159 3 Release date 05 2009 8 ...
Page 14: ...Contents SIPROTEC 7VK61 Manual C53000 G1176 C159 3 Release date 05 2009 14 ...
Page 316: ...Literature SIPROTEC 7VK61 Manual C53000 G1176 C159 3 Release date 05 2009 316 ...
Page 328: ...Glossary SIPROTEC 7VK61 Manual C53000 G1176 C159 3 Release date 05 2009 328 ...