Power Cable Analyzer
The Adret PCA101 was developed to assist power cable fault location technicians in pre-locating
and predetermining distances to faults existing in power cables.  It gives a direct reading in meters
to the fault distance.

Fault distances can also be determined from the far end of the cable by simply moving two cursors
to any two points on the display screen. It is capable of locating low resistance (that is any fault
lower than about 120 ohms or infinity ohms) or high resistance faults with the help of any standard
impulse generator and the Adret AE101 high voltage coupling unit.

Operating Modes
The unit is capable of pre-locating distance to fault in three distinct modes.

TDR
In the TDR (Time domain Reflectometer) mode the instrument transmits a pulse which is reflected
off the far end of the cable. Any impedance mismatches (i.e. Joints, open or short circuits) along
the cable are also reflected. The waveforms are easy to analyze.

Impulse Current
In the Impulse Current Mode a high voltage discharge generated by a surge generator is applied to
a faulty cable until the fault breaks down. Thus, the surge energy is then reflected back to its
source. Upon arriving at the source it is reflected back into the cable.  This continues until the
energy is depleted. The PCA101 will capture and store the current waveform flowing in the cable
and display it for analysis.

ARC-Echo
In the ARC-Echo mode the instrument is connected to the faulty cable via the AE101 Coupling unit.
This unit provides the suitable isolation and filtering required to superimpose a TDR waveform on top
of the high voltage surge generated by the surge generator. When the high voltage energy arrives at
the fault it temporarily breaks it down causing a short term short circuit. The waveforms are simple
and easy to analyze and look exactly like TDR waveforms.
PRE-LOCATION SCOPES : PCA101
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SPECIFICATIONS
Weight

Dimensions

Controls



Power Source





Display




Enclosure
ACCESSORIES
Standard
3Kg

300 x 300 x 130 mm

Watertight front panel with
integrated multi-function
tactile membrane switches

Rechargeable NiMH battery
pack (charger with
standard accessories)
Battery life Approximately
4 hours for continuous use

240 x 320 Pixel Trans-
missive LCD with multilevel
greyscaling
(permanently backlit)

Scratch resistant PVC
enclosure with lifetime
guarantee.
Padded canvas carry case,
all necessary cables,
switch mode battery
charger and power supply,
operator manual
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APPLICATION