Siemens SIPROTEC 7UT613 series Manual page 318

Differential protection
Hide thumbs Also See for SIPROTEC 7UT613 series:
Table of Contents

Advertisement

2 Functions
318
• Current I1..I12, if single-phase currents at single-phase additional measuring
inputs must be evaluated. Only 3 additional measuring inputs are possible for
7UT613 and 7UT633. Only 1 single-phase additional measuring input is possible
for 7UT635, if 5 three-phase inputs have been configured.
• Voltage, if voltages must be evaluated. This is only possible for 7UT613 or 7UT633
with voltage inputs.
• Active power forward, if forward power must be evaluated. This is only possible
for 7UT613 or 7UT633 with voltage measuring inputs. Please ensure to use the
correct assignment of voltages to the currents, from which the power is to be calcu-
lated, as well as polarity.
• Active power reverse, if reverse active power must be evaluated. This is only pos-
sible for 7UT613 or 7UT633 with voltage measuring inputs. Please ensure to use
the correct assignment of voltages to the currents, from which the power is to be
calculated, as well as polarity.
• Reactive power forward, if forward reactive power must be evaluated. This is only
possible for 7UT613 or 7UT633 with voltage measuring inputs. Please ensure to
use the correct assignment of voltages to the currents, from which the power is to
be calculated, as well as polarity.
• Reactive power reverse, if reverse reactive power must be evaluated. This is only
possible for 7UT613 or 7UT633 with voltage measuring inputs. Please ensure to
use the correct assignment of voltages to the currents, from which the power is to
be calculated, as well as polarity.
• Power factor, if the power factor must be evaluated. This is only possible for
7UT613 or 7UT633 with voltage measuring inputs. Please ensure to use the correct
assignment of voltages to the currents, from which the power is to be calculated, as
well as polarity.
• Frequency, if the frequency must be evaluated. As the frequency is derived from
the measuring-circuit voltage, this is only possible for 7UT613 or 7UT633 with
voltage measuring inputs.
If you have selected the 3-phase currents from the pre-selection above, (current mea-
suring location / side), it is determined which exact measured values are supposed
to be used for the evaluation of the flexible functions. The following applies to three-
phase currents (incl. single-phase CT):
• Side 1 to side 5: Select the desired side which currents are to be evaluated in three-
phase. Only the sides that are determined in section 2.4.1 are possible. A maximum
of 3 sides is possible for 7UT613 and 7UT633.
• Measuring location 1 to Measuring location 5: If not the currents of a side of the
main protected object are to be processed, but one (assigned or not assigned to the
main protected object) of a three-phase measuring location, this can be determined
here. A maximum of 3 measuring location is possible for 7UT613 and 7UT633.
7UT613/63x Manual
C53000-G1176-C160-2

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents