November 2003Analytical Instrumentation & Environmental Monitoring
The Swiss designed Mavolog power quality analyser range of instruments, which can be used by power distributors and large industries for long-term monitoring of energy supplies, is available from Timecount. Interference generated by energy users can cause disturbances on the network that can influence the reliability of operation for other consumers within a network. During peak consumption periods the quality of energy supply is particularly susceptible to fluctuations.
SABS tested and complying with NRS 048-2 and EN50160 'voltage characteristics in public distribution networks', Mavalog series 10 can be configured for all types of applications from power generation to consumer, in combination with multiple instruments or as standalone. The top-of-the-range Mavolog 10S power analyser with LCD and current inputs is a universal instrument for the recording of the characteristics of significant power quantities in three-phase systems, and for the testing of voltage quality characteristics.
Measured quantities U1, U2, U3 and UN as well as I1, I2 and I3, are processed directly using DSP (digital signal processing). The user-specific selection of available measured quantities and analyses is stored to the internal 256 KB memory. Memory configuration can be adapted within a broad range to the desired requirements. Stored data is uploaded to the computer via the RS485 interface. Up to 32 instruments with different configurations can be connected with a bus cable. The bus configuration provides for plain and simple configuration, as well as reliable operation.
The Mavolog 10L basic version without current inputs or LCD is equipped with a programmable alarm output for events messages. The primary range of applications includes the areas of voltage quality and voltage recording with integrated harmonic analysis and flicker measurement, in three-phase AC systems. Measurement values are acquired and stored in an internal memory along with the relevant analyses at short-term, daily or weekly intervals depending upon memory configuration. Connection to other instruments, as well as to a PC, is via the RS485 interface. The device is equipped with an LCD for the on-site observation of measurement values and analyses. Up to 10 selected measurement quantities and analyses can be consecutively displayed on the LCD by activating a pushbutton. This version is otherwise identical to the Mavolog 10L.
For more information contact Jos Laurencik, Timecount, 011 882 3105, [email protected]
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