The parameters in block General are not relevant since the
Operating mode
=
light only
.
Setting Notes for the Protection Device in the Infeed
The Arc protection function operates with 5 stages.
Set the parameters of the stages as follows:
•
Parameter:
Operating mode
=
light only
(applies to all stages)
•
Parameter:
Sensor
=
point sensor
(applies to all stages)
•
Parameter:
External trip initiation
=
no
(applies to all stages)
•
Parameter:
Channel
=
Arc mod. 1 channel 1
(Stage 1) → Busbar compartment supervision in
feeder 1
Parameter:
Channel
=
Arc mod. 1 channel 2
(Stage 2) → Circuit-breaker compartment supervision
in feeder 1
Parameter:
Channel
=
Arc mod. 1 channel 3
(Stage 3) → Busbar compartment supervision in
feeder 2
Parameter:
Channel
=
Arc mod. 2 channel 1
(Stage 4) → Circuit-breaker compartment supervision
in feeder 2
Parameter:
Channel
=
Arc mod. 2 channel 2
(Stage 5) → Busbar compartment supervision in the
infeed
The parameters in block General are not relevant since the
Operating mode
=
light only
.
Application Example for Arc Protection with Point Sensors in Operating Mode:
Light and Current
Description
Overview
The example describes the Arc protection function in a medium-voltage switchgear with one infeed and 2
feeders. The Arc protection function operates with the
Operating mode
=
current and light
. In the
example, all arcs are detected by the protection device in the infeed.
The following items are considered in the example:
•
Positioning the optical point sensors in the switchgear
•
Connecting the optical point sensors to the protection devices in the feeders and the infeed
•
Number of necessary stages of the functions in the protection devices of the feeders and the infeed
•
Setting notes about selected parameters in the stages of the function
7.29.9
7.29.9.1
Protection and Automation Functions
7.29 Arc Protection
922
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017
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