In accordance with most regulations, cables and joints must be tested after installation or repair. For this test the breakdown strength of the cable is tested.

The portable VLF Test System 20 kV of Seba KMT can be used to test the cables in conjunction with the according local regulations for operating voltage levels up to 11 kV for new cables and 16 kV for aged cables at 3 µF cable capacity.

By using the patented Seba KMT 0.1 Hz Cosine Square Wave Voltage, weak and for further operation critical spots in PE, XLPE but also in paper cables are brought to a controlled breakdown very fast without causing additional damage or ageing to the cable insulation.

The weight of 50 kg make the VLF Test System 20 kV a powerful, universal and at the same time portable unit.

_ The patented change over principle in combination with

the recycling of energy stored in the cable capacity

results, in comparison to other methods, in a lower

weight, less energy consumption and much higher test

capacity.

_ The high test capacity of 3 µF permits the simultaneous

testing of all three phases.

_ The method is officially recommended by the two VDE

Standards 0276-620 and 0276-621.

_ Independent researches shows that VLF test is done

most effectively with the 0.1 Hz cosine square wave

shape compared to any other VLF wave shape or

frequency.

_ VLF is the most economic method for testing PE and

XLPE cables. DC test is not applicable for these cable

types.

_ controlled output voltage

Standard accessories

Scope of Delivery

_ Basic unit

_ AC mains cable

_ Earthing cable 4 m

_ HV-connection cable 4 m

_ Accessory bag

_ Operating manual

Recommended options

Options

_ Breakdown recognition and automatic shut-down.

_ VLF / DC leakage current measurement

More products SEBAKMT

SEBA KMT VM-880 FERROUS METAL LOCATOR, BURRIED AND HIDDEN ASSETS

• Excellent sensitivity
• Lightweight, just 0.7 kg
• Improved ergonomics for comfort during prolonged usage
• Up to 26 hrs battery life from just 2 x AA (LR6) cells
• Ultra strong, submersible carbon fiber antenna tube
• Dot matrix LCD with backlight
• Audio and visual signal strength indicators

SEBA DIGIFLEX COM REFLECTOMETER FAULT LOCATING ON METALLIC TELECOMM LINES, COAXIAL AND POWER CABLES

• Measuring range from 5 m up to 30 km
• Line comparison with 2 measuring inputs
• High resolution in the near and far range
• Weatherproof case
• Solid housing for rugged fi eld use

SEBA KMT EASYLOC RXTX PIPELINE LOCATION AND TRACING FOR UNDERGROUND PIPES AND CABLES

• Make optimum preparations for your building work, quickly and reliably
• Avoid cable damage and help to minimise costly accidents and inconvenient delays
• Depth measurement at the push of a button, even without a transmitter
• 33 kHz - compatible with other location systems
• Large display with automatic backlight
• Quick and simple to operate

SEBA KMT HPG 50..80-D DC & AC HIGH VOLTAGE CABLE TESTER

• HPG 50-D, AC testing up to 35 kVRMS/ DC testing up to 100 kV
• HPG 70 / 80-D, AC testing up to 50 / 58 kVRMS / DC testing up to 140 / 150 kV
• Suitable for AC testing and DC testing
• Compact, cast-resin high-voltage transformers
• Separate control and HV-units
• Voltage continuously adjustable
• Powerful system: 1,2 kVA continuous operation, up to 3 kVA 60 min. short-time operation

SEBA KMT HPA 100 AC HPA 130 DC BURNDOWN HIGH VOLTAGE TESTING

• Powerful test- and burning system
• Continuous testing with AC voltages up to 100 kVrms at 5 kVA
• Own noise-level below 1 pC
• Built-in overcurrent protection
• DC testing up to 130 kV with optional rectifier

SEBA SURGEFLEX SFX-40 SPG-40 CABLE FAULT LOCATING SYSTEM

• DC Testing up to 40 kV ARM, ICE and Decay Method integrated
• Operation by VGA Display and single button rotary encoder
• High surge energy fort he acoustic pinpointing 1000 or 2000 J
• Surge voltage levels for MV cablel 0 ... 12,5/25 kV or 0 ... 16/32 kV
• Surge voltage levels for lower voltage 0 ... 3/6 kV or 0 ... 4/8 kV
• Integrated safety system

SEBA KMT MFM 10 CABLE STEATH FAULT LOCATION SYSTEM

• Testing, prelocation and pinpointing of sheath faults
• Voltage up to ±10 kV DC
• High current of up to 750 mA
• Only one HV connection cable
• Automatic measurement and protocolling

SEBA KMT SEBALOG N-3 AUTOMATIC WATER LEAK LOCATION WITH CORRELATING NOISE LOGGER NETWORK

• Latest measured data available every day
• Correlation function
• No time-consuming driving past individual loggers
• Remote configuration
• Very simple installation process
• Cost-effective data transmission

SEBA KMT TAN DELTA CABLE CONDITION DIAGNOSIS SYSTEM

• Very accurate measurement
• Optional leakage current correction
• High wireless range
• Measurement at high voltage potential
• Light and portable

SEBA KMT T22/13B BURN UNIT FOR TESTING MEDIUM VOLTAGE CABLES T22-13B

• Short circuit proof
• Equipped with new circuity to keep Burn-Down power constant
• Maximal Burn-Down current of 25A
• Burn-Down voltage constinuously variable from 0 to 15 kV
• Indication of output current and voltage
• Integrated start interlock circuit and discharging device
• Pulse mode for earth leakage