T&R Z-OVR Overhead Line Cable Impedance Test Set
The Z-OVR Cable Impedance Test System is a reliable and powerful solution for measuring cable impedance accurately, whether it�s overhead lines or underground cables. This test set comprises a control unit and an output transformer that provides isolation of the output current and feedback voltage.
With the Z-OVR, you can inject current into the line under test and measure the resultant magnitude and phase angle of the voltage across the line. This measurement method allows for the calculation of the impedance (Z & X) of the line. The system displays the current, voltage, phase angle, impedance of the line, as well as the harmonic content of the voltage and current.
The Z-OVR has data logging capabilities to save date, time, current, voltage, phase angle, and frequency to a CSV file on a standard USB memory key. Additionally, the system provides three voltage taps (75V, 150V & 300V) for measuring a wide range of lines and cables, and all metering is true RMS.
The unit features four current ranges (2.000, 10.00, 20.00 and 100.0A) and three voltage ranges (10.00V, 30.00V, and 300.0V), and uses 6mm safety connectors for all outputs and 4mm safety connectors for inputs.
The Z-OVR Cable Impedance Test System also includes four 10m 12mm2 duplex measurement cables. Each cable has a 12mm2 conductor for current injection and a 6mm2 conductor for voltage feedback
Features
Measure impedance of overhead lines and underground cables
Direct readout of cable Z & X
Phase angle display
Voltage up to 300V and current up to 80A
Data storage to CSV file on USB memory key
Multi-function digital timing system
Digital true RMS memory ammeter & voltmeter
Solid state switching
Rugged, compact design
Supplied with
User manual
Calibration certificate
Spare fuses
Mains lead
Power interconnect lead
Metering lead
USB memory key
USB keyboard
10m earth lead with screw clamp
10m output earth lead with clip
5 x lead boxes
10m output lead red with overhead clamp
Output lead yellow with overhead clamp
Output lead blue with overhead clamp
25mmsq link lead