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VLF Sine 37 kV

High-power test and diagnostic system for MV cables

About the product

The VLF Sine 37 kV with integrated tan delta is a compact, durable, and highly portable test and diagnostic system designed for medium-voltage (MV) cable networks.

A powerful, comprehensive solution for MV cable test and diagnostics

Combining robust performance with practical mobility, the VLF Sine 37 stands out as the most powerful portable unit in its class, capable of testing up to 1.6 μF @ 26 kVRMS, making reliable testing and diagnostics of cables longer than 5 km effortless.

The unit is a truly multifunctional tool. It performs:

  • VLF and DC testing
  • Sheath testing and sheath fault pinpointing (with the ESG NT2 step voltage probe)
  • Tan delta measurements for accurate assessment of cable condition and insulation integrity
  • Can be used as a power source for partial discharge (PD) measurements to identify local problems such as workmanship issues

Thanks to its smart frequency control, the system automatically adjusts the test frequency based on cable length, ensuring testing even on 15 kV-rated cables up to 25 km long.

VLF Sine 37 kV Datasheet

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VLF Sine Wave 62 kV

VLF sine wave test system for medium voltage cables

  • Performs cable withstand testing, cable diagnosis, and sheath fault pinpointing
  • Smallest and lightest unit on the market in its class
  • Unique user-experience, thanks to a large, colour touch screen
  • Automatic result interpretation as per latest IEEE 400.2 standard
  • High safety, thanks to its analogue residual voltage indicator

The VLF Sine 62 kV, with integrated tan delta, is a compact, robust, and portable high-performance VLF sine wave test system for medium voltage cables.

The 62 kV tester is a multifunctional tool. In addition to VLF and DC testing, it can also perform sheath testing and sheath fault pinpointing when used in combination with the step voltage probe ESG NT/ NT2. Furthermore, the optional internal tan delta expands the system to assess both cable integrity and condition. The smart VLF system automatically adjusts the test frequency to the cable length, making even tests on 35 kV rated cables (up to 25 km) easy and reliable.

Field operations require no external computer. Equipped with intuitive operating software and a large internal memory, the VLF sine wave 62 kV evaluates and stores all data automatically. 

Using either a USB port or wireless connection to mobile end-device (coming soon), datasets can be easily exported and processed for report generation via the PC software MeggerBook Lite (included in delivery). What's more, you can review all performed measurements either immediately or at a later point in time on the unit itself.

VLF Sine Wave 62 kV Datasheet

VLF CR-60HP and VLF CR-80

Cosine Rectangular Cable Testing

 
  • Very high test power without frequency reduction
  •  Covers cables up to 20 km at maximum voltage
  •  No polarisation effects as with DC
  •  Protocoling
  •  Breakdown detection
  •  Leakage current measurement

Powerful 0.1 Hz VLF test system with energy recovery for testing of cables with Cosine Rectangular Wave voltage according to VDE, IEC and IEEE.

In accordance with most regulations, cables and joints must be tested after installation or repair. The Seba KMT VLF Test System CR 60 kV can be used to test cables with operating voltage levels up to 36 kV. The system consists of a control unit and a HV unit. The high test capacity of 6.5 μF permits the simultaneous testing of all three phases. Positive and negative DC testing of cables and connected switchgear can be carried by DC Mode.

This VLF Test System CR 60 kV can be used both as a stand alone system and as integrated part of a test van system.

 VLF CR-60HP and VLF CR-80 Details

 

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