Description

Kehui T-900 Hand-held TDR

The Kehui T-900 Hand-held TDR is a compact and easy-to-use instrument for accurately locating open-circuit and low-impedance faults on metallic cables, using time-domain reflectometry (TDR). In this article, we will discuss the main features and benefits of the Kehui T-900 Hand-held TDR.

Features

The Kehui T-900 Hand-held TDR has several features that make it an excellent tool for locating faults on metallic cables. These features include:

Compact and easy-to-use
Accurately locates open-circuit and low-impedance faults on metallic cables
Calculates the velocity of propagation (VOP) of a known length of cable or measures the length of cable on a drum, where the VOP is known
Available in three versions with 8, 16, or 32 km range
Digital gain control
Data transfer via USB flash memory for analysis on a PC
Compares TDR traces from the three phases of a faulty cable, which can be used to identify differences between them, providing another useful aid to fault location

Benefits

The Kehui T-900 Hand-held TDR provides several benefits to those who use it. These benefits include:

Accurately locates faults on metallic cables, which is essential for maintenance and repair work
Compact and easy-to-use, making it an excellent choice for those who need to locate faults on metallic cables
Calculates the velocity of propagation (VOP) of a known length of cable or measures the length of cable on a drum, where the VOP is known
Available in three versions with 8, 16, or 32 km range, which provides flexibility for different applications
Digital gain control, which allows for accurate measurements
Data transfer via USB flash memory for analysis on a PC, which makes it easy to record and analyze data
Compares TDR traces from the three phases of a faulty cable, which can be used to identify differences between them, providing another useful aid to fault location

How it Works

The Kehui T-900 Hand-held TDR uses time-domain reflectometry (TDR) to locate faults on metallic cables. TDR works by sending a pulse down the cable and measuring the time it takes for the pulse to reflect back from the fault. The T-900 can calculate the velocity of propagation (VOP) of a known length of cable or measure the length of cable on a drum, where the VOP is known. The unit can also compare TDR traces from the three phases of a faulty cable, which can be used to identify differences between them, providing another useful aid to fault location.