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Megger Seba
VLF CR-40 Basic Cosine Rectangular Cable Test System


Seba VLF 40 CR is a portable, high-performance & energy-efficient VLF test system, used for testing cables with 0.1 Hz cosine-rectangular voltage according to IEC/IEEE/CENELEC standards (VLF CR-40 up to 23 kV rated cables).

Part Number:
899004500-S

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Megger Seba VLF CR-40 for cable VLF, DC and sheath fault testing

Megger VLF CR-40 Key Features:

  • VLF, DC and sheath fault testing in one device
  • Portable thanks to two-part construction
  • High test capacitance
  • Integrated discharge system
  • Reporting

The portable, high-performance and energy-efficient VLF test systems are used for testing cables with 0.1 Hz cosine-rectangular voltage according to IEC/IEEE/CENELEC standards. In accordance with guidelines, the dielectric strength of cables and joints must be checked after installation or repair.

The VLF test systems from SebaKMT have high test-capacities and are still compact, because of the patented voltage wave-shape and the power-recycling during polarity reversal. Aside from cable and sheath testing, the test systems can also be used for the precise pinpointing of sheath faults (in combination with a step-voltage probe).

The series offer three portable systems are available, each with different voltage levels (28, 40 and 60 kV):

  • VLF CR-28 up to 15 kV rated cables
  • VLF CR-40 up to 23 kV rated cables
  • VLF CR-60 up to 36 kV rated cables

See data sheet for full specification

 


 

Comparison Chart for: Megger Seba VLF CR-40 Basic Cosine Rectangular Cable Test System

EASYTEST 20 KVVLF CR-28 KVVLF CR-40 BASICVLF CR-60 BASICVLF SINUS 34 KVVLF SINUS 45 KV
Test voltage
Vlf Test Voltage0 … 20 kV peak0 … 28 kV eff0 to 40 kV eff0 to 60 kV eff0 to 34 kV peak0 to 45 kV peak
Frequency0.01 to 0.1 Hz0.1 Hz0.1 Hz0.1 Hz0.01 to 0.1 Hz0.01 to 0.1 Hz
Wave FormSimplified Cosine RectangularCosine RectangularCosine RectangularCosine RectangularSineSine
Testing cable capacitance (at max. voltage) DC0,5μF (0.1 Hz)/5μF (0.01 Hz)2.4 µF (Plus Version:4.8 µF)1 µF (Plus Version:2 µF)0.6 μF(0.1 Hz)/0.6 µF
0 … 20 kV0 to -28 kV0 to -40 kV (Plus Version:0 to ±40 kV)0 to -60 kV (Plus Version:± 0 to ±60 kV)0 to ± 34 kV0 to ± 45 kV
Output current measurement0 … 50 mA0 to 12 mA0 to 7 mA0 to 5 mA0 to 14 mA0 to 20 mA
Sheath testing0 to 5 kV or 0 to 10 kV2 to 10 kV2 to 10 kV2 to 10 kV0 to 5 kV or 0 to 10 kV0 to 5 kV, 10 kV, 20 kV
Sheath pinpointing
Test voltage0 to 5 kV or 0 to 10 kV2 to 10 kV2 to 10 kV2 to 10 kV0 to 5 kV or 0 to 10 kV0 to 5 kV, 10 kV, 20 kV
Pulse rate01:031:3, 1:4 or 1:91:3, 1:4 or 1:91:3, 1:4 or 1:91:3 or 1:41:3 or 1:4
Weight17 kg25 + 25 kg55 + 48 kg85 + 48 kg25 kg50 kg
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