Installation, Operation and Service Manual
LKP Series
© 2016 DynAmp, LLC
Page 5
041738 I
3. DESCRIPTION
3.1 OVERVIEW
The DynAmp, LLC LKP-100 is a 10 channel metering system for accurately measuring
direct current in a bus up to 100 kA. The system consists of a Measuring Head, a
Metering Unit, and two multi-conductor cables.
3.2 MEASURING HEAD
A magnetic core encircles the bus passing through the center of the Measuring Head.
Magnetic null detectors are mounted in air gaps in the core. Each null detector is flanked
by coils located on the magnetic core.
The Measuring Heads are constructed of cast aluminum with a tough powder coating
finish, insulation from the bus being provided by a 3/8 in. (9.5mm) layer of high-grade
polymer.
The LKP 10-channel Measuring Head is provided with mounting feet as standard
equipment. The mounting feet facilitate the mounting of the heads vertically on the floor or
on a platform.
3.3 METERING UNIT
The Metering Unit is housed in a standard NEMA type enclosure (An IP54 upgrade is
available). In addition to the electronic circuitry (housed within smaller modular units), the
Metering Unit contains terminals for all external connections. The Metering Unit requires
120/240 Vac, 50 or 60 Hz power. Burden on the supply circuit will not exceed 2000VA
under normal operating conditions (about 20VA/kA). A thermo-magnetic circuit breaker is
mounted on the inside of the enclosure and serves as the power on-off control.
3.4 CABLE
Standard interconnecting cables are supplied with each system such that the distance
between the cabinet and the head is approximately 33 feet (10 meters). Longer cable
lengths are available - consult the factory for details. Each of the individual conductors is
tagged with a numbered label corresponding to a terminal block connection, providing an
easy hookup to the Metering Unit. Keyed connectors are provided on the Measuring Head
side of the cables to ensure correct hookup.
3.5 ELECTRICAL
Six outputs are provided by the system:
1.) A standard voltage output of 1 mV/kA.
