Settings - Siemens Siprotec 7UM611 Manual

2 Functions
Parameter 104 FAULT VALUE is used to specify whether the oscillographic fault re-
cording should record Instant. values or RMS values. If RMS values is stored,
the available recording time increases by the factor 16.
For the high-current stage I>> of the overcurrent protection, address 113O/C PROT.
I>> determines whether Non-Directional or directional is to be operative. By
selecting Disabled, this overcurrent stage can be excluded altogether. With inverse
time overcurrent protection 114O/C PROT. Ip, depending on the ordered variant,
various characteristics are available for selection, in accordance with IEC or ANSI
standard. Selecting 'disabled' deconfigures inverse time overcurrent protection.
For earth fault protection, Address 150 S/E/F PROT. presents the options non-
dir. U0, non-dir. U0&I0 and directional, unless the whole function is
Disabled. The first option evaluates only the displacement voltage (to be used with
unit connection). The second option evaluates in addition to the displacement voltage,
the magnitude of the earth fault current (or the difference between the starpoint current
and the total current of a toroidal CT in busbar systems with low-ohmic switchable star-
point resistors). The third option considers as a further criterion the direction of the
earth fault current if with machines in busbar connection the magnitudes of displace-
ment voltage and earth fault current alone are not sufficient to distinguish between
system earth faults and machine earth faults.
For trip circuit monitoring, address 182 Trip Cir. Sup. is used to specify whether
two binary inputs (2 Binary Inputs) or only one (1 Binary Input) should be
utilized.
2.2.3

Settings

Addr. Parameter
103 Grp Chge OPTION
104 FAULT VALUE
112 O/C PROT. I>
113 O/C PROT. I>>
114 O/C PROT. Ip
116 Therm.Overload
117 UNBALANCE LOAD
130 UNDEREXCIT.
131 REVERSE POWER
132 FORWARD POWER
133 IMPEDANCE PROT.
32
Setting Options
Disabled
Enabled
Disabled
Instant. values
RMS values
Disabled
Enabled
Disabled
directional
Non-Directional
Disabled
with IEC
with ANSI
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Default Setting
Disabled Setting Group Change Option
Instant. values Fault values
Enabled Overcurrent Protection I>
Non-Directional Overcurrent Protection I>>
Disabled Inverse O/C Time Protection
Enabled Thermal Overload Protection
Enabled Unbalance Load (Negative Se-
quence)
Enabled Underexcitation Protection
Enabled Reverse Power Protection
Enabled Forward Power Supervision
Enabled Impedance Protection
Comments
7UM61 Manual
C53000-G1176-C127-3