VLF 80 kV test system High-performance VLF test system for up to 46 and 66 kV rated cables
This high-performance 0.1 Hz VLF test system for cables with cosine-rectangular voltages works in accordance with VDE, IEC and IEEE standards.
According to most regulations, cables and joints must be tested after installation or repair. The VLF 80kV test system can be used to test cables with 3 Uo with operating voltage levels up to 46 kV. The system consists of a control unit and an HV unit. The high test capacity of 2.5 μF can simultaneously test all three phases with the standardized 0.1 Hz test frequency. Positive and negative DC testing of cables and connected switchgears can be carried out by switching over to DC Mode. Aside from cable and sheath testing, the sys-tem can also be used to precisely pinpoint sheath faults (in combination with a step voltage probe like the ESG NT).
Using 0.1 Hz cosine-rectangular voltage, weak spots in the cable can be safely brought to break-down. The benefits of the VLF method with 0.1 Hz cosine-rectangular voltage have been confirmed by extensive scientific research as well as practical field tests. The proven voltage is recommended by Cenelec 620/621, IEC 60502-2 and IEEE 400.2 standard.
The VLF 80kV test system can be used as stand-alone system (permanently installed in a transportation container for operations such as cable testing on offshore wind-farms) or fully integrated into a test and fault location system. The integrated safety system and breakdown recognition software maximise safety.
Furthermore, the leakage current measurement enables a qualitative assessment of the cable cable, and the protocol function allows test data to be stored for further reporting purposes.
■Test with 3 U-o for 46 kV cables or 2 Uo for 66 kV cables
■Can function as a stand alone system or be integrated into the Centrix Test Van
■Ideal for standard compliance testing of long cables such as submarine cables
■Reporting, breakdown recognition and leakage current measurement
■Integrated discharge system
●FEATURES:
■Ideal for testing long 36/45 kV submarine cables
■High test capacity
■Maximises user safety through automatic discharge of the test object and earth loop monitoring
■Breakdown recognition
■VLF, DC and sheath fault pinpointing in one device
890012125-S 、 890012124-S 、 138315319 、 890017195 、 890018889 、 VLF CR-80-B 、 VLF CR-80-P 、 VLF 80 kV |
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Datasheet |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2020/04/02 |
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VLF80KV_DS_EN_V01 |
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310 KB |
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