Catalog LV 70 2011 - Low & Medium Voltage - Siemens

© Siemens AG 2011
Busbar Trunking Systems, Overview
Communication-capable busbar trunking
for industry and buildings
2
■ Application
Standard application for lighting control
The lighting control application is an efficient and cost-effective
option for realizing large-scale lighting control systems such as
are used in supermarkets, furniture stores and DIY stores.
The power bus is formed by BD01 or BD2 busbar trunking systems
from Siemens, depending on the current requirement.
CD-K busbar systems, acting simultaneously as the carrier system
for the lighting elements, feed the standard outgoing enclosures
equipped with miniature circuit-breakers or fuses. The
economical and efficient control of extensive lighting systems is
thus possible.
The DALI or KNX bus systems are suitable for standard applications.
On live busbar systems the tap-off point for power and bus
can be adapted to the operational requirements.
Possible functions of the lighting control
• Three times single-pole switching (L1, L2, L3) or 1/3, 2/3, 3/3
control
• Feedback of switching states
• Lamp test
• Recording of operating hours and operating cycles
• Dimming
Standard application for consumption recording
The consumption recording function enables the central recording
of distributed power meters.
The time-consuming reading of local meters is no longer necessary.
Integration of the consumption recording in a visualization
or I&C system by means of the data bus creates maximum transparency
in the power distribution board. If recorded continuously,
the measured values collected can be assigned to cost
centers at a central point. The evaluation of trends and histories
enables the data acquired to be analyzed.
The combinations of tap-off unit and ancillary equipment unit
can be equipped with either calibrated or non-calibrated power
meters and enable the quick and transparent presentation of
power consumption levels at the power tap-off points.
The power bus is formed by BD2, LD or LX busbar trunking systems
from Siemens, depending on the current requirement.
Transformer sets (non-calibrated and calibrated) are available
for the various tap-off units and levels of current.
Possible functions for consumption recording
• Recording of consumption data
• Resetting of meter total
• Indication of a group fault
• Indication in the event of meter overflow, calling up of historical
data
Standard application for switching and signaling
The application for switching and signaling enables the remote
switching and remote monitoring of power or motor outgoing
feeders.
The power supply becomes highly transparent through the central
recording of switching and operating states. In the event of
a fault such as short-circuiting or overload trip, its type and location
are detected quickly and efficiently, effectively helping to increase
the availability of the power supply.
The power bus is formed by BD2, LD or LX busbar trunking systems
from Siemens, depending on the current requirement. The
combinations of standard tap-off unit and standard ancillary
equipment unit are equipped with corresponding switching devices
and enable the centrally controlled switching and monitoring
of the circuit breakers.
The AS-Interface or PROFIBUS bus systems are suitable for
standard applications.
Possible functions for switching and signaling
• Central recording of switching and operating states
• Local and central switching
• Switching on is monitored by means of an integrated run-time
monitor
• Fault signal inputs
• Group fault signal
• Short-circuit signal
• Overload signal
• Recording of hours in operation and operating cycles
• Limit value signals
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