Siemens 6MD85, Manual

Page: 243 / 1256

•
The device performs protection, automatic reclosing, and control functions
The information
Circuit breaker is open in 3 poles
must also be recorded via the auxiliary
contacts to ensure optimum operation of the control functionality. The device derives the information
Circuit breaker is closed in 3 poles
(for the control functionality) automatically from the 1-
pole information.
[loausw3p-081210-01.tif, 1, en_US]
Figure 5-46 Recommended Analysis of the Circuit-Breaker Switch Position when Used as a Protection and
Control Device
Execute the routing of the
Position 3-pole
signal as O_ (open). In the following figure, routing is
executed as OH, in which H stands for active with voltage.
[scpoloff-081210-01.tif, 1, en_US]
Figure 5-47 Routing for the Acquisition of Information that Circuit Breaker Is Open in 3 Poles
Depending on the design of the circuit breaker, other auxiliary contacts can be available in the system. In this
case, the device allows all routing options and acquires the necessary information automatically. Since all
routing options are possible on the device, there is no need for auxiliary contacts to be connected in series.
The device can also function without the analysis from the circuit-breaker auxiliary contacts, that is, routing of
the auxiliary contacts is not absolutely necessary.
Parameter: Output Time
•
Default setting
(_:101) Output time
=
0.10 s
The
Output time
parameter acts on the signals for tripping, opening, and closing of the circuit breaker.
Function-Group Types
5.6 Function-Group Type Circuit Breaker, 1-/3-Pole
SIPROTEC 5, High-Voltage Bay Controller, Manual 243
C53000-G5040-C015-9, Edition 11.2017