T-1200 Cable Test Van System
T-1200 Cable Test Van system provides the basis for the integration of different cable fault location
techniques into a suitable vehicle, to meet the different testing requirements of customers for
cables up to 32kV.
The cable fault location function utilises a combined surge generator and fault locator, which can be
used in conjunction with the T-506 Pin-pointer. Additional equipment for sheath fault location, route
tracing and cable identification can also be included.
The type of vehicle used in the system can be varied to meet the preferences of the customer, but
will always include the necessary equipment.
Overview
This datasheet covers the surge generator and cable fault locator equipment, which are integrated
into a control console. This assembly includes the PC which provides the operator interface and also
comprises the cables reel assemblies.
Additional functionality may be required to complete the fault location capability (e.g. fault
pinpointer or sheath fault locator), but these are supplied as loose equipment and are covered in
dedicated data sheets. Diagnostic equipment may also be incorporated but this will be sourced from
third-party vendors.
Features
➢ Cable fault location functionality using the power of Kehui’s product range of equipment
➢ Flexible modular system allows the inclusion of additional functionality
➢ Safety interlocking to help ensure secure operation
➢ Equipment available for fitting to a variety of vehicles
➢ By improving the MIM arc extension circuit, 8 MIM waveforms can be collected
T-1100_DS_232010
Specifications
Equipment Main functions and technical parameters
Output voltage 0-32kV 0-16kV, 0-8kV, Adjustable negative DC
High DC Voltage 0-32kV/50mA negative polarity
voltage Impulse energy 2560J; 32kV/5µF, 16kV/20µF, 8kV/80µF
surge Operating modes DC withstand voltage, single pulse, periodic pulse
Main insulation fault pre-location system for vehicle-mounted cables
generator Testing method TDR/ SIM(MIM) / ICM
Discharge period 6-30s adjustable continuously when in Cyclic mode
Measuring range: 20m - 64km
Pulse voltage 60V
Fault Pulse width 10ns-10μs
locator Sampling rate 400MHz (5ns)
Accuracy ±0.1m
Wave velocity: 90m/µs - 300m/µs continuously adjustable
Computers Industrial-grade flat-panel all-in-one machine, 15-inch colour LCD display
and Windows operating system.
Printers Portable colour printer
Integrated reel: 50m, 50kV high voltage output cable
50m, 25mm2 protective ground wire
Cables
30m, measurement ground wire
50m, external power cable
Door status detection: When the rear door of the vehicle is closed, the high voltage
can be applied. If the door is opened, the high voltage will be automatically discharged
to the ground.
High-voltage output state detection: When the high-voltage line is not inserted into
Safety
the high-voltage port, or is in poor contact, the output is disabled.
Monitoring
System Grounding state detection: Detects the status of the protective grounding wire. When
the grounding is poor, the high voltage disabled, or automatically cut off.
Emergency stop button: In an emergency, pressing the emergency stop button will
immediately terminate the high voltage output and discharge the device to ground.
The traveling wave method distance measuring unit, high voltage output unit,
Control computer and liquid crystal display and other equipment are installed in the
Console workbench.
