VLF & DAC Systems
(VLF) Very low frequencies are used during VLF testing in order to maintain AC cable. VLF testing uses equipment which is smaller and more convenient than AC testing apparatus whilst matching the power output of a 50Hz mains device. As such, VLF testing is suitable for longer cables. As VLF testing equipment is small and yet generates high power, it resolves the issue of transmission loss when testing on long sections of cable.
VLF testing is the perfect solution for working within various power frequencies and so is ideal for power supplies to the likes of aircraft and railways. Our VLF testing service includes underground and sub-sea cabling. Having VLF testing equipment available to us refutes the requirement for on-site generators, large transformers, or for supplies of the generating company to be used to power items during the testing phase.
At HV3 our VLF testing services are carried out by highly experienced & qualified engineers using the latest test equipment available carried on board of our dedicated HV3 Vehicles.
HV3 test Medium voltage cables using a range of different test sets from the HVA 28 up to the HVA 120 system. HV3’s capability and expertise to undertake VLF testing ensures we can offer our clients comprehensive range of services.
The b2 HVA Systems
- Cable testing
- Cable sheath/ jacket testing
- Sheath fault location
- Vacuum bottle test
- The following features make the b2 HVA's cable tester the outstanding cable test system of its class:
- Predefined standard-compliant cable test sequences
- Symmetrical sine wave high voltage
- RMS measurement of output voltage and current
- Measurement of capacitive and resistive load
- Automatic and load dependent frequency selection (0.01 Hz – 0.1 Hz)
- Display of current test time
- Integrated real-time scope function
- Self-explanatory, multilingual software
- Automatic measurement reporting
- Report storage via RS232 (USB optional)
- PC software (HVA Control Center) for data analysis and storage
- Flashover detection and ultra-fast switch off
- Flashover voltage measurement
- Time optimized burning mode
- No regular maintenance required
HV3’s capability and expertise to undertake Cable testing ensures we can offer our clients a comprehensive range of services.
The below links give more details of the DAC systems for the different cables :-
- Acceptance & Diagnostic Testing of Distribution and Transmission Power Cables Using Damped AC Testing Technology
- Asset Management of Paper-Oil Insulated Transmission Power Cables
- Asset Management of XLPE Transmission Power Cables
- Testing and Diagnosis of Off-Shore Wind Farms Inter-Array- and Export-Power Cable Systems
Contact our experienced team
Our professional staff are there to help you and answer any queries. From advice to site visits we are there to support you just a telephone call away. Call us on 01329 826 881. Don’t delay, call now for peace of mind and support from professionals in cable fault location. You can also contact us by email by clicking the button.
Message us to request a copy of our quality policy.
Unit 4, Salterns Lane Industrial Estate. Salterns Lane. Fareham. Hampshire. PO16 0SU | info@hv3.co.uk | © HV3 Solutions 2021, Design by Digi Toolbox Ltd