New meter processor eliminates the need for transducers
Southampton-based Kenda Electronic Systems has developed a
new high-speed meter processor that eliminates the need for the
transducers that would normally be used to produce analogue
4-20mA signals for operational metering purposes in the electricity
generating industry.
The Kenda system utilises the latest CEWE intelligent Prometers,
which not only generate the pulsed outputs required for tariff
metering purposes but also provide serial data via an RS232 interface.
Parameters such as kw, kVAr, kVA, V, I, power factor and frequency
are read by the meter processor from a number of Prometers simultaneously,
and this data is then fed via copper or fibre-optic serial lines
to a DAC processor system that has been designed by Kenda to
convert the serial data into the analogue 4-20mA values required
for operational metering.
The new meter processor is ideal for applications where both
operational and tariff metering signals are required from a single
measuring device or where analogue outputs are required at long
distances from the meters. It can easily be adapted for use with
other intelligent meters, if required.
January 2001
Ref: Ke 139/2
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