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The following table presents an overview of the activation or blocking of functions.
Details are set out in the respective function description.
2.1.1.2
Setting Notes
Configuration of
Configuration settings can be entered by using a PC and the software program DIGSI
Functional Scope
and transferred via the operating interface of the device or via the service interface on
the rear. Operation using DIGSI
tion, order no. E50417-H1176-C151.
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 modified and
transmitted to the device.
The functional scope with the available options is set in the Functional Scope dialog
box to match plant requirements.
Special Character-
Most settings are self-explaining. The special cases are described below.
istics
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 Subsection
2.1.4). Only one setting group may be selected and used if the setting is Disabled.
The impedance characteristic valid for distance protection is selected under address
113 DISTANCE CURVE. You can choose between distance protection with combined
tripping characteristic and distance protection with polygonal tripping characteristic
(see Section 2.2).
The available protection and supplementary functions can be configured as Enabled
or Disabled.
When ordering devices, please note that the basic device version does not offer the
full scope of functions. The table below shows which functions are provided in the
basic device version, and which must be ordered separately if required:
7ST6 Manual
E50417-G1176-C251-A3
Function
Distance Protection
High-Speed Overcurrent Pro-
tection
Overcurrent Protection
Emergency Overcurrent Pro-
tection
Voltage Protection
Thermal Overload Protection
Defrosting Protection
Inrush Restraint
Fault locator
Breaker Failure Protection
Trip circuit supervision
IT Function
Synchro-check
Automatic Reclosure Function
ON/OFF
BI
SI
Para
x
-
x
x
-
x
x
-
x
x
-
x
-
-
x
x
-
x
x
x
x
-
-
-
-
-
-
x
-
x
-
-
x
x
-
x
x
-
x
x
x
x
®
is described in the SIPROTEC
2.1 General
Blocking
BI
SI
Para
x
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
x
x
x
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
x
-
-
x
-
-
®
4 System Descrip-
®
27
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