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TDR 1150 Time Domain Reflectometer - Overview

Haefely Hipotronics Model TDR1150 is the most advanced and powerful cable fault locator tool on the market. Used together with suitable high voltage coupling device, the TDR1150 accurately pre-locates high voltahe cable faults in underground transmission and distribution cable systems.

Basic mode of operation provides the simplest means of operation for pre-locating most cable faults. The TDR1150 advanced mode of operation provides the operator with complete control and setup access of the TDR functions and settings.


TDR 1150 Time Domain Reflectometer

  • Automatic identification of Key Parameters (cable length and distance to fault).
  • Quick location of faults.
  • 32 Accessible Memory Locations for Internal Trace Storage.
  • Large 10.4-inch VGA Color Display.
  • Automatic Setup of sampling rate, gain and pulse width.
  • Step-by-step instructions of System Operation Guides User Through Test.
  • Large, easy to use Buttons.


  • Multi-Purpose Device - has ability to pre-locate, locate and diagnose cable faults.
  • Easy to Use - TDR, Time Domain Reflectometer procedure: in 5 easy steps you've located the fault.
  • Compatibility - TDR1150 can be used with most other High Voltage Couplers.
  • PC Software and Serial Port - included with standard unit provides long-term storage, evaluation of test results, defining of test protocols and simple software upgrading.
  • Reduce Outage Time - by quickly locating faults you reduce outage time and get power back to your customer sooner.
  • Reduce Cable Damage - using a TDR reduces thumping and therefore damage to the cable.

Technical Specifications

Input Voltage

90V to 250V AC, 50/60Hz

Pulse Characteristics


25 Volts into 50 Ohms

Pulse Width

100ns to 20s



480V AC

Input Range


1.28s to 0.66ms


1 foot to 196,000 feet

Measurement Accuracy

Sample Rate



2.5 feet (10ns)

Operation Modes

Arc Reflection

TDR Direct

Current Pulse


Stores 16 sets of 3 traces or 6 pre-recorded setups with information and 10 sets of
3 trace signatures


Large 10.4 inch (diagonal) VGA Color Display


Operating Temperature

-12C to 50C

Storage Temperature

-40C to 60C


360mm (W) x 240mm (D) x 150mm (H)




Ordering Information

Haefely Hipotronics TDR1150

Time Domain Reflectometer

Haefely Hipotronics TDR1150-RTRFT

TDR Retrofit Kit to upgrade existing with TDR1150


Scope of Supply: One each, TDR1150 in portable, water resistant case, 100/240V AC, 12V DC power supply with 1.8m cord, 4.6m RG58/U BNC-BNC cable, 0.76m BNC/clip cable, Serial interface cable, operators manual and TDR-PC interface software, and calibration certificate.


Optional Accessories


Power supply for TDR-1150

HVC4100 Series

HV Coupler to protect TDR from HV of cable fault locator


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Macey's Electrical Pty. Ltd.
ABN 17 344 601 468
Unit 1, 49 Gavenlock Road, Tuggerah, NSW Australia 2259
Phone: +61 2 4353 4644    Mobile: 0412 678 925