- Step-by-step on screen instructions.
- Automatic placement of start, end, and fault cursors.
- Automatically tells the operator the cable length and distance to the fault.
- Clear and easy-to-read wave shapes on large color screen.
- “Basic and Advanced” modes.
- Saves up to 16 three phase cable traces and 16 user-defined test profiles.
- Password protection of TDR adjustments.
- Multiple languages.
- RS232 port for downloading traces or upgrading software.
- Operational on a wide variety of “thumpers”.
- Prolongs cable life.
- Ideal for sectionalizing.
- Restores service to customers faster.
Description of Operation
The TDR 1150 can be used on a wide variety of capacitive discharge devices, commonly called “thumpers.” A high voltage coupler (also available from Hipotronics) is required as an interface between the TDR and the thumper.
Basic Mode of Operation
Basic mode provides the simplest mode of operation for pre-locating most cable faults. It provides step-by-step instructions and prompts the operator through the operation of the TDR and thumper.
The auto range feature fits the cable trace on the screen, regardless of the cable length. The TDR automatically sets the “Start” and “End” cursors, and provides a numeric value for the cable length.
The operator is then prompted to send a single high voltage pulse down the cable. The TDR displays the high voltage trace and places a fault cursor at the point of the fault, and displays the distance to the fault. There is no need to interpret traces or move cursors. The entire process can be completed within minutes. Training time is significantly reduced.
Advanced Mode of Operation
In Advanced Mode, the operator has complete control of the TDR functions and settings. It is password protected to prevent unauthorized use. This mode provides more experienced operators with the diagnostic tools they need to find more difficult faults.
TDR functions that can be adjusted include: propagation velocity, pulse width, gain, 3 phase or single phase display, and trigger delay. They also have the ability to move cursors and adjust screen size (zoom). Memory functions, measuring units, language choices, the option to reset defaults, and much more are accessible in this mode.