KEP VLF-60 HiPot Cable Tester

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The KEP VLF-60 Cable Insulation Tester is a very low frequency high voltage test set that ensures efficient testing and fault location on medium voltage cables.

  • Efficient non-destructive cable testing
  • Portable, perfect for field testing
  • Test capacity of 10 µf
  • Fully automatic testing cycle
  • Automatic discharging
  • Easy maintenance due to solid-type insulation system
  • Breakdown voltage measurement and load recognition
  • Easy-to-use software
  • Does not need an external PC
  • LCD touch screen
  • 2 Year Warranty

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pdf    KEP VLF-60 Datasheet
pdf    KEP Hipot Testing Application Note

2Y Warranty

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Introduction to the KEP VLF-60 HiPot Cable Tester:

One of the most popular cable testing techniques nowadays is very low frequency testing, which, on the one hand, provides accurate testing results, and, on the other hand, does not damage good cable insulation.
Very low frequency (VLF) testing involves applying frequency in the range of 0.01 to 0.1 Hz to the cable under test, which is non-destructive to insulation of proper quality, but is enough to detect cable faults. Compared to DC cable testing, which can be damaging to good insulation, VLF testing does not have such a detrimental effect on the cable being tested and does not generate any travelling waves.

Very low frequency (VLF) testing involves applying frequency in the range of 0.01 to 0.1 Hz to the cable under test, which is non-destructive to insulation of proper quality, but is enough to detect cable faults. Compared to DC cable testing, which can be damaging to good insulation, VLF testing does not have such a detrimental effect on the cable being tested.

KEP VLF-60 HiPot Cable Tester –  MAIN FEATURES:

  • Efficient non-destructive cable withstand testing
  • Portable, perfect for field testing
  • Test capacity of 10 µf
  • Fully automatic testing cycle
  • Automatic discharging
  • Easy maintenance due to solid-type insulation system
  • Breakdown voltage measurement and load recognition
  • Easy-to-use software
  • Does not need an external PC
  • LCD touchscreen

KEP VLF-60 HiPot Cable Tester – Technical Specifications:

Parameter Value
Output Voltage:
– Sinusoidal 0 – 62 kV peak / 0 – 44 kV RMS
– DC ± 0 – 60 kV
– Squarewave 0 – 60 kV
– Accuracy ± 1 %
– Resolution 0.1 kV
Output Curent:
– Sinusoidal (RMS) 26 mA
– DC / Squarewave 40 mA
– Accuracy ± 1 %
– Resolution 1 μA
Output Frequency 0.01 – 0.1Hz in steps of 0.01 Hz (default 0.1 Hz) – auto
frequency selection
Output Load 1 μF @ 0.1 Hz @ 44 kV RMS
5.0 μF @ 0.01 @ 44 kV RMS
10.0 μF max capacitance (at lower frequency
and Voltage)
Output Modes 
– VLF AC Sinewave yes
– VLF AC Squarewave yes
– DC (positive or negative polarity) yes
– Vacuum Bottle Test Mode (DC) yes
 – Cable Jacket / Sheath Testing yes
 – Sheath Fault Location yes
Breakdown Mode
– Fault Condition Mode yes
– Fault Trip Mode yes
Metering
– Voltage and Current True RMS and / or peak
– Capacitance 0.1 nF to 20 μF Range
– Resistance 0.1 MΩ to 20 GΩ
– Waveform Real time oscilloscope display of actual
output voltage waveform
Safety 50 / 60 Hz – 12 kV Feedback Protection /
Dual Discharge Device (internal)
Duty Cycle Continuous
Computer Interfaces USB, RS-485
Display Color touchscreen TFT 5.7 “ (115 × 86 mm)
Input Voltage (110 to 240) V AC ±10 %, 50 / 60 Hz
Consumption Power 1.2 kVA
Dimensions (H × W × D) 530 × 580 × 410 mm
Weight 60 kg

The KEP VLF-60 HiPot Cable Tester is designed for an indoors operation under the following conditions:

Condition Value
Air temperature, °С from -10 to +40
Relative humidity, %, up to 85 at +25 °С
Atmospheric pressure, kPa (mm hg) 84,0 – 106,7 (630 – 800)

 

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