VLF 60 kV - "Very Low Frequency" 0.1 Hz Test

SebaKMT´s portable VLF 60 is designed for HV-tests on cables with a rated voltage of 35 kV or the VLF 40 for cables up to 22kV.

Using the patented SebaKMT Cosine-Square Wave shaped voltage form, with energy regeneration, weak spots in PE/XLPE and paper insulated lead cables can be brought to a breakdown quickly, without unnecessary strain on the cable insulation.

High quality voltage sources and the use of a semi-conductor switch, free of wear for the generation of a regular polarity reversal, guarantee a long life-span. A polarity transition corresponding to the 50 Hz mains voltage is a salient feature.

The optional leakage current measurement permits a direct quality assessment during the test procedure.

Technical Features:

• * Powerful, portable and universal cable test system
• * Modular design (power module and control module) with an individual weight of approx. 50 kg
• * Optional module "leakage current measurement" and "output doubling" to individually suit the system to specific test requirements
• * Optional Module "data recording" for easy on the spot recording of the test results, the central administration of the test parameters and the test procedures.
• * Automatic breakdown recognition
• * Fast, on the spot installation without complicated setup, with shockproof sockets and integrated discharge devices to comply with the highest safety standards.
• * With the patented technique of energy storage during the polarity reversal of the VLF voltage, it is possible to achieve a very low power consumption while simultaneously achieving a high testing capacitance.
• * VLF 0.1 Hz testing is recommended, allowing high cable capacitance, and is the most effective method for testing PE and XLPE cables.

Scope of Delivery:

• * Basic instrument
• * HV-connection cable 5 m
• * Connection cable
• * Accessory bag
• * Earth line 5 m
• * Operating manual

Order Description:

• * VLF 40 Basis Article No.: 900 4500
• * VLF 40 Plus Article No.: 900 4501
• * VLF 60 Basis Article No.: 900 4502
• * VLF 60 Plus Article No.: 900 4503

Options:

• * Hard copy print-out Article No.: 900 4505
• * Protocol Article No.: 900 4504
• * Breakdown recognition Article No.: 900 4821
• * Leakage current measurement Article No.: 900 4822

NEW

• * Portable, 0.1 Hz VLF Test System up to 60 kV
• * Automatic parameter adjustment by means of a chip-card
• * Integrated leakage current measurement
• * Integrated protocol option
• * Integrated breakdown recognition