ePlaquette SmartDupline BUILDING Automation - page 9

CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only.
9
Good voltage level and stability are
fundamental requirements for reliable
equipment operation; too low or too
high voltage levels could cause failures.
It is important to monitor the instant
level of voltage as well as voltage sags
and transients which may occur over
time. In a production facility it is quite
common to use and add to electrical
loads, especially these with high in-
rush current. Voltage sags indicate
that a system is not able to respond
properly to load requirements, leading
to production process interruptions.
Monitoring voltage balance in
a three-phase power distribution
system is crucial for the efficiency of
motors and any three-phase load;
an unbalanced supply can cause
poor performance of the equipment,
leading to premature motor failure
due to increased mechanical stress.
Controlling harmonic distortion helps
prevent failures of critical equipment
such as motors and transformers; the
main problems caused by harmonics
are overheating of motor windings
and transformers, higher susceptibility
to voltage sags, excessive current
to neutral conductors and noise, all
of which reduce the lifespan of the
equipment. Within our product range,
we can offer devices to monitor the
correct level of voltage and frequency
of single and 3-phase systems. Phase
sequence and loss, along with the
voltage, can be detected, notifying
the user if a system failure occurs. The
voltage level of the start-up battery
can also be properly monitored. We
can also offer current monitoring
devices capable of sending alarm
signals when an over-current situation
is detected.
Our new Surge Prrotection devices
can be used in Building Automation
applications, in order to protect
devices connected to the mains. A
special range has been developed
for the protection of DuplineĀ® buses
as well as for RS485 communication
lines.
Power
Transducers
Current
Transformers
Voltage
monitoring relays
Current
monitoring relays
Surge
protection
devices
CPT
E83
A82
MP3
DPA51
DPA53
DIA53
DIA01
DSF A/P
DSB A/P
DSB51XXDP
Monitoring and protection
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