Siemens SIPROTEC 7SD610 User Manual

3 Mounting and Commissioning
302
7SD610 Manual
C53000-G1176-C145-4
Table 3-15 Annunciations on inconsistencies
Availability of the
protection data in-
terfaces
The quality of protection data transmission depends on the availability of the protec-
tion data interfaces and the transmission. Therefore, check the statistic information of
the device.
Check the following information:
• Indication No. 7753 „PI1A/m“ (availability per minute) and indication No. 7754
„PI1A/h“ (availability per hour) indicate the availability of protection data interface
1. The value of No. 7753 „PI1A/m“ should attain a minimum per-minute-availabil-
ity of 99.85% after two minutes of operation. The value for No. 7754 „PI1A/h“
should attain a minimum per-hour-availability of 99.85 % after one hour of opera-
tion.
If these values are not attained, the protection communication should be checked.
If GPS synchronisation is used, the transmission times can be retrieved separately for
each direction:
• Concerning protection data interface 1, indication No. 7876 „PI1 TD S“ indicates
the transmission time in sending direction, No. 7875 „PI1 TD R“ in receiving di-
rection.
In all other cases, the mean value for both directions will be indicated:
• Indication No. 7751 „PI1 TD“ indicates the transmission time for protection data
interface 1.
WEB-Monitor The topology and the statistics of the protection data interfaces can be graphically dis-
played on the screen using the WEB-Monitor. This requires a personal computer with
web browser. Figure 3-21 shows the general information of the communication topol-
ogy.
No Short Text State Meaning / Measures
3233 „DT
inconsistent“
ON „Device table inconsistent“: the indexing of the devices is
inconsistent (missing numbers or one number used
twice, see Section 2.2.3.1)
3234 „DT unequal“ ON „Device table unequal“: the ID-numbers of the devices
are unequal (see Section 2.2.3.1 )
3235 „Par. different“ ON „Parameterization inconsistent“: different functional pa-
rameters were set for the devices. They have to be equal
at both ends:
Differential protection available or not (see Section 2.1.1)
Transformer in protected zone or not (see Section 2.1.1)
Nominal frequency (see Section 2.1.2)
Operational power or current (see Section 2.1.4)
3487 „Equal IDs“ ON „Same device address:“: The parameter 4710 LOCAL
RELAY has been set for several devices.
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Siemens SIPROTEC 7SD610 Specifications

General

Brand	Siemens
Model	SIPROTEC 7SD610
Category	Relays
Language	English