Installation, Operation and Service Manual
LKAT
2
+24V
© 2018 DynAmp, LLC
Page 4
046404 E
Each standard LKAT
2
is delivered with the following
•
A new, ruggedized two-piece Measuring Head with integrated mounting hardware and bus
bar corner (fiberglass angles). Each head half has its own cable for connection to the
metering electronics.
•
Very compact Metering Electronics with one analog measurement output, one Accuracy
Diagnostics system status output and one configurable Alarm output for overcurrent or
reverse current protection.
•
System output cable
•
Power input cable
•
Comprehensive User’s Manual
•
Factory calibration data and graphs
•
2-year warranty for permanent installed systems
•
Packaging suitable for air /ground transport
AVAILABLE OPTIONS
•
Protection Extensions ( PE )
The PE option adds additional functionality for protecting high current rectifiers. This option is
either factory configured with a new system or can be added to LKAT
2
Systems already in the
field. If added in the field, some field configuration may be required.
Second Freely Scalable Analog Output :
This second analog output is independently scaled and fully isolated from the standard LKAT
2
measurement output. In typical applications, it is scaled to provide accurate measurement
above the standard rectifier operating range for advanced protection purposes. For example,
the primary LKAT
2
output may be scaled to 50kA to provide the highest degree of accuracy
and resolution for normal rectifier control. The second PE output may be scaled to 75kA to
provide the information to intelligently manage overcurrent situations. Using this signal, the
rectifier control system could integrate overcurrent operation to allow 5 minutes at 110%, 1
minute at 120%, 10 sec at 140%.
Two Additional Protection Relays :
These relays bring total number of configurable relays to three. Each can be configured to
provide reverse or various degrees of overcurrent protection. Like the standard alarm, these
two additional PE alarms come with their own, independent local LED indication and relay
outputs.
•
Digital current display ( 3 1/2 digit )
This option is mounted behind the clear front door of the metering electronics enclosure to
display either DC or RMS AC bus current locally.
Please note that this option reduces the
maximum metering electronics ambient temperature to 50ºC. This option can also be added
to LKAT
2
Systems already in the field.
•
Custom Cable Lengths
Custom Measuring Head cable lengths can be provided but only at time of order. Note that
Measuring Head cable lengths cannot be changed after order or in the field because one end
is terminated inside the Measuring Head and the other end is terminated inside a fixed
connector.
Custom Signal and Mains cable lengths can be provided. Note that standard Signal and
Mains cables can be shortened or replaced with longer cables in the field.