Functions
2.1 General
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
30
In address 192 Cap. Volt.Meas. you can specify whether you want to employ capacitive voltage measure-
ment. When selecting YES, you have to specify the bushing capacitance, the line and stray capacitance for the
capacitive voltage dividers at the voltage inputs in addresses 241 to 246 (see 2.1.3.2).
With capacitive voltage measurement several functions are not available or only partly. See table 2-1 in section
2.1.3.2 for more information regarding this topic.
In address 617 ServiProt (CM) you can specify for which purpose port B is used. T103 means that the
device is connected to a control and protection facility via serial port, DIGSI means that you are using the port
to connect DIGSI and RTD-RS485 means that you are using the port to connect an RTD box. Disabled indi-
cates that you can not use port B.
The flexible protection functions can be configured via parameter FLEXIBLE FUNC.. You can create up to 20
flexible functions by setting a checkmark in front of the desired function (an example is given in the section
2.14). If the checkmark of a function is removed, all settings and configurations made previously will be lost.
After re-selecting the function, all settings and configurations are in default setting. Setting of the flexible func-
tion is done in DIGSI under „Settings“, „Additional Functions“ and „Settings“. The configuration is done, as
usual, under „Settings“ and „Masking I/O (Configuration Matrix)“.
2.1.1.3 Settings
Addr. Parameter Setting Options Default Setting Comments
103 Grp Chge OPTION Disabled
Enabled
Disabled Setting Group Change Option
104 OSC. FAULT REC. Disabled
Enabled
Enabled Oscillographic Fault Records
112 Charac. Phase Disabled
Definite Time
TOC IEC
TOC ANSI
Definite Time 50/51
113 Charac. Ground Disabled
Definite Time
TOC IEC
TOC ANSI
Definite Time 50N/51N
116 67N/67N-TOC Disabled
Definite Time
TOC IEC
TOC ANSI
Definite Time 67N, 67N-TOC
117 Coldload Pickup Disabled
Enabled
Disabled Cold Load Pickup
122 InrushRestraint Disabled
Enabled
Disabled 2nd Harmonic Inrush Restraint
130 S.Gnd.F.Dir.Ch cos ϕ / sin ϕ
V0/I0 ϕ mea.
cos ϕ / sin ϕ (sens.) Ground fault dir. character-
istic
131 Sens. Gnd Fault Disabled
Definite Time
User Defined PU
Disabled (sensitive) Ground fault
140 46 Disabled
TOC ANSI
TOC IEC
Definite Time
Disabled 46 Negative Sequence Protection
141 48 Disabled
Enabled
Enabled 48 Startup Time Supervision for
Motors
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