Feature Energy Efficiency
signals overloads on the neutral con- ductor and other equipment due to power quality issues. Efficiency: RCM ensures the data centre installation maintains good EMC characteristics (with no stray protective conductor currents), to deliver trouble- free operation and high availability. Energy management and power quality monitoring (PQM) in one device and one software application enables quali- fied evaluation of the measures imple- mented and value delivered in terms of shutdowns avoided.
System area monitoring Structural detail is a crucial element for effective energy management and cost control in a complex installation because energy use by each cost centre and each different device must be identified. Power Quality Management and Energy Measurement devices can identify individual faults only if the system area monitored is clearly defined. In a typical system, a Bender PEM 735 monitors the quality of the volt- age for the supply, delivering high resolution logging through measure- ment of transients, flicker and har- monic components.
Outlets on the main low voltage distribution system are monitored by PEM 5 series devices - the sampling
Right: Bender’s new Linetraxx power quality monitoring (PQM) units
rate is 12.8kHz and as a result events are clearly shown in the data logged. PEM3 series devices are positioned to replace energy meters and represent cost centres. This effectively creates an energy management system to control overhead costs for electrical power. A PEM 333 can also provide information on the overall harmonic content in the part of the installation being monitored. This type of monitoring system configuration ensures quick and straightforward analysis to locate power quality phenomena which may put the installation at risk. Bender’s PEM 3 series and PEM 5
series compact devices are designed for front panel mounting as replace- ments for analogue indicating instru- ments, with typical applications in low and medium voltage networks (via measuring voltage transformer). All measured data is collected, fil- tered and evaluated at a central point and can now be displayed on the Bender CP700 Condition Monitor - a new generation of gateway launched at the start of this year.
Bender UK
www.bender-uk.com T: 01229 589 973
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