Cable detector system
CableCop 300 cable detector system.
Current-free and voltage-free, as well as current and voltage conducting cables, can be located with the
CableCop 300 cable detector system in electrical circuits of up to 300 V.
Cables, conductors, electrical circuits, short-circuits and ground faults can be localized, and protective
conduit and coaxial cable can be traced. The electrical circuit need not be interrupted, and sensitive electronic components need not be switched off. Detection is possible in walls and concrete, as well as underground.
Cable detector system
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The cable detection system CableCop 300 permits both electrically dead and live lines in
circuits up to 300 V
to be reliably detected.
An interruption of the power supply, or a disconnection of equipment containing sensitive electronic parts,
is not required. In particular, the following applications are possible:
Location of lines in ceilings, walls and floors.
Location of line interruptions, switches and fuses.
Location of short circuits.
Location of earth faults in three-phase systems.
Detection of bottlenecks in conduits.
Tracing of underground cables that are buried in the ground up to a depth of 3 m.
Tracing of conduits, water and heating pipe lines Sorting of installed lines
The cable detection system consists of a signal generator for live lines and a transmitter for electrically dead lines as well as a receiver. Signal generator and transmitter feed high-frequency electromagnetic signals into the line to be tested. Along the line, these signals are converted into acoustical and optical signals by the receiver. The signal strength is a measure for the location of the line.
Two basic operating modes are to be distinguished hereby:
1 ) Closed-circuit mode : In this mode, live lines are tested with a potential of a maximum of 300 V to ground.
The signal current of the signal generator, for example, is fed into the phase of the line to be tested and flows
back to the signal generator through neutral conductor across the transformer.
This "two-pole" application corresponds to a closed circuit, whereby the energy for the generation of the
signals is directly derived from the system. In the case of a shorted line, the current flow in the circuit to be
measured is interrupted, a 9-V battery can, for example, be connected into the measuring circuit as a
substitute power supply. The receiver evaluates the magnetic component of the signal.
2) Open-circuit mode : In this operating mode, only electrically dead lines may be tested.
One output of the transmitter is connected to the line to be tested, the second output to ground.
This "single-pole" application corresponds to the principle of a radio transmitter.
The connected line hereby becomes the antenna of the transmitter, the ground serves as reference potential.
The energy for the generation of the signals is provided by the internal battery.
The receiver evaluates the electrical component of the signal.