Siemens SIPROTEC 7UT635*-* N series User Manual

3.3 Commissioning
389
7UT613/63x Manual
C53000-G1176-C160-2
Table 3-25 Indications on matching factors
3.3.6 Secondary Tests
Checking the individual protection functions of the characteristic curves or pick-up
values is not required since these are part of the firmware programs which are moni-
tored continuously. Analogue inputs are checked at the primary commissioning at the
protective object (Section 3.3 under „Symmetrical Current Tests on the Protective Ob-
ject“). Verification of connections, i.e. coupling with the plant, also takes place there.
Measured quantities deviation between the protective functions and phases can be
excluded.
Secondary checks can never replace the primary checks described below, as connec-
tion errors cannot be included. They can however be used as theoretical test of the
setting values. Should you want to perform a secondary test, please observe the fol-
lowing hints.
When performing tests with secondary test equipment, attention must be paid that no
other measuring values are applied and that the trip command to the circuit breakers
are interrupted.
The tests should be done with the current setting values of the device. If these are not
(yet) available, the test should be done with the preset values.
Message No. Description see
section
„Gen CT-M1:“
to
„Gen CT-M5:“
30060
to
30064
General: Magnitude matching factor at the indicated measuring location 2.1.4
„Gen VT-U1:“ 30065 General: Magnitude matching factor of 3-phase voltage input 2.1.4
„Diff CT-M1:“
to
„Diff CT-M5:“
5733
to
5737
Differential protection: Magnitude matching factor of the indicated mea-
suring location (3-phase protected objects)
2.1.4
„Diff CT-I1:“
to
„DiffCT-I12:“
5721
to
5732
Differential protection: Magnitude matching factor of the indicated mea-
suring location (1-phase busbar protection)
2.1.4
„Diff CT-IX1:“
to
„Diff CT-IX4:“
5738
to
5741
Differential protection: Magnitude matching factor of the indicated aux-
iliary 1-phase measuring location
2.1.4
„REF CTstar:“ 199.2639 Earth fault differential protection 1: Magnitude matching factor of the
starpoint current
2.1.4
„REF2 CT-M1:“ to
„REF2 CT-M5:“
205.2634 to
205.2638
Earth fault differential protection 2: Magnitude matching factor at the in-
dicated measuring location
2.1.4
„REF2 CTstar:“ 205.2639 Earth fault differential protection 2: Magnitude matching factor of the
starpoint current
2.1.4

Siemens SIPROTEC 7UT635*-* N series Specifications

General

Brand	Siemens
Model	SIPROTEC 7UT635*-* N series
Category	Protection Device
Language	English