High Voltage Cable Testing ServicesSafe, fast and reliable testing of new and in-service High Voltage cables

The reliability of high voltage cables is critical for any network. LIVE HV utilise the latest technology to accurately assess the insulation condition of HV cables and prevent failures

BENEFITS:

Eliminate surprises Locate insulation faults prior to energising. Assess the true condition of your HV cables. Make informed, efficient maintenance decisions

Reduce maintenance costs Pinpoint faults to within 1% of cable length

Best practice VLF (Very Low Frequency) combined with PD (Partial Discharge) and TD (Tan Delta) diagnostics is the ultimate tool for high voltage cable condition assessment and fault location

Safe and Reliable VLF testing is safer and more reliable than other testing methods.

Lower cost The test equipment is transportable, reducing costs and allowing testing in difficult locations

VLF CommissioningCommissioning of new

cables up to 66 kV

VLF MaintenanceAssess the integrity of

existing cables up to 132kV

APPLICATIONS:

Cable MappingDetermine exact location

of joints and faults

Key Facts & Technical Specs:

Portable to all locations

Testing to IEEE 400 Standard

All Cable voltages up to

132 kV

Uses sinusoidal 0.1 Hz waveform

For more details please contact LIVE HV | 1300 460 579 | info@livehv.com.au | www.livehv.com.au

HVA120 VLF Supply HVA60 Supply PDTD120 Diagnostics

Output Voltage 120 kV peak 60 kV peak Background PD Level

<10 pC

Max Load 10 μF 10 μF Tan Delta Resolution

0.00001 rad

Input Voltage 100 – 240 V 100 – 240 V

Dimensions 790 x 445 x 740 450 x 340 x 520 330 x 280 x 870, 300 x 280 x 820

Weight 181 kG 67 kG 25 kG + 34 kG

Tan Delta TestingInsulation condition

assessment

Partial DischargeIdentify localised faults

FAQs:

Q Is testing conducted with the cable on-line or off-line? A LIVE HV provides both online and off-line cable PD testing services.

The advantage of online testing is that the cable remains in service and there is no requirement for an

outage. Offline testing can provide a more sensitive PD measurement and allows TD measurements to also be recorded. Cable mapping services to pinpoint fault locations are provided by LIVE HV both online and offline.

Q Is testing conducted from both ends of the cable? A Typically, measurements are made from just one end of the cable. In certain circumstances to increase PD sensitivity LIVE HV may recommend taking measurements from both ends of the cable.

Q Are the measurements comparable with 50 Hz in-service conditions? A Measuring TD with a VLF source is a proven method that results in very accurate and repeatable measurements. The TD guidance tables in IEEE 400 are based on using a VLF source. LIVE HV field testing has shown that PD measurements are similar and comparable when using a VLF test set as opposed to a 50 Hz source.

Q Can VLF testing damage the cable? A Unlike DC testing VLF uses a sinusoidal alternating wave which will not cause space charge build up in XLPE cable.

Q Is a truck required to transport the test equipment? A No, because VLF (Very Low Frequency) is using a lower frequency than 50 Hz, less current is required to energise the cable resulting in less input power being required and a smaller test set.

Q What standards can be applied? A For VLF and TD measurements LIVE HV refers to the IEEE 400 guide for field testing and evaluation of the insulation of shielded power cable systems rated 5 kV and above.

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FOR MORE DETAILS PLEASE CONTACT LIVEHV:phone 1300 460 579

email info@livehv.com.au

website www.livehv.com.au

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