S-24 VLF
High Voltage Insulation Tester

Name: High Voltage Insulation Tester
Brand: Sonel
SKU: S70-WMUSS24VLF
Price: 31826.43 USD
Availability: InStock

Index cat. WMUSS24VLF

ean 5907624007574

31 826,43 $

Available

Delivery: up to 11 days

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Test the condition of the cables with VLF or DC slow voltage

The S-24 VLF high voltage insulation tester is a compact, robust and portable kit for testing medium voltage cables according to IEEE400, IEC 60502-2, CENELEC HD 620 and 621 and DIN VDE 0276/620 and 621. The test is carried out using the low electrical stress method, with a VLF (Very Low Frequency) voltage of 0.1 Hz.

The VLF test is the fastest way to detect insulation damage. The S-24 VLF instrument can test cables with plastic insulation (XLPE, PE-, EPR) as well as paper and oil insulation (PILC). Testing with DC voltage is also possible.

Sonel offers online training course on the use of this product (instructional video and consultation with a specialist).

Features

Extremely compact high-power VLF test device
Easily portable for 1-2 people
Simple operation: menu-assisted control with industrial class OLED display
Fully automatic test sequence
Integrated timer 1-300 min with automatic tripping
Integrated breakdown detection
Integrated fault time detection
Voltage measurement direct at HV output
Protective ground connection
High voltage start key interlock
Protective circuit / indication in accord. with EN 50191
Leakage current measurement during VLF test

Optional features

Data logging (USB stick) for VLF test sets
Frequency extension: 0.05 + 0.02 Hz
Customized test cables
Transport case

Sonel VLF Tester Software

The programme Sonel VLF Tester Software generates a test report based on the individual recorded data files.

The first page of the generated report is an overview. The following pages describe the individual tests of the power cable system. The software is easy to use, so you can quickly create a PDF report that is attractive to the end user.

Supported languages: Polish, English, Spanish, German, Czech, Italian. It is possible to generate a report in a language other than the one set for the interface.

Technical specification

	S-24 VLF	S-36 VLF	S-44 VLF (230 V)	S-44 VLF (110 V)	S-57 VLF
Index	WMGBS24VLF	WMGBS36VLF	WMGBS44VLF	WMPAS44VLF	WMGBS57VLF
Power supply	230 V (±10%),10 A, 50/60 Hz	230 V (±10%),10 A, 50/60 Hz	230 V (±10%),10 A, 50/60 Hz	110 V (100 V...127 V),15 A, 50/60 Hz	230 V (±10%), 10 A, 50/60 Hz
Output voltage	0…24 kV_RMS VLF 0.1 Hz (option: 0.05 Hz + 0.02 Hz) ± 0…34 kV DC	0…36 kV_RMS VLF 0.1 Hz (option: 0.05 Hz + 0.02 Hz) ± 0…52 kV DC	0…44 kV_RMS VLF 0.1 Hz (option: 0.05 Hz + 0.02 Hz) ± 0…62 kV DC	0…44 kV_RMS VLF 0.1 Hz (option: 0.05 Hz + 0.02 Hz) ± 0…62 kV DC	0…57 kV_RMS VLF 0.1 Hz (option: 0.05 Hz + 0.02 Hz) ± 0…62 kV DC
Voltage waveshape
VLF	similar sine-wave, symmetrical, with True RMS measurement	similar sine-wave, symmetrical, with True RMS measurement	similar sine-wave, symmetrical, with True RMS measurement	similar sine-wave, symmetrical, with True RMS measurement	similar sine-wave, symmetrical, with True RMS measurement
DC	direct voltage, negative and positive polarity	direct voltage, negative and positive polarity	direct voltage, negative and positive polarity	direct voltage, negative and positive polarity	direct voltage, negative and positive polarity
Overcurrent trip (DC)	10 mA	10 mA	10 mA	10 mA	10 mA
Max. testable cable length, max. capacitance (VLF)	up to 60 km (15 µF at 24 kV_RMS, 0.02 Hz)*	up to 60 km (15 µF at 18 kV_RMS, 0.02 Hz)*	up to 60 km (15.0 µF at 18 kV_RMS, 0.02 Hz)*	up to 60 km (15.0 µF at 6 kV_RMS, 0.02 Hz)*	up to 60 km (15.0 µF at 18 kV_RMS, 0.02 Hz)**
Max. load at max. output voltage (VLF) and 0.1 Hz	5 µF at 24 kV_RMS	2.4 µF at 36 kV_RMS	1.6 µF at 44 kV_RMS	1.0 µF at 44 kV_RMS	0.55 µF at 57 kV_RMS
Discharge - integrated automatic discharge device	max. 9000 J	max. 12500 J	max. 12500 J	max. 12500 J	max. 12500 J
Voltage measuring range	-40…0…40 kV accuracy ±1%	-60…0…60 kV accuracy ±1%	-70…0…70 kV accuracy ±1%	-70…0…70 kV accuracy ±1%	-70…0…70 kV accuracy ±1%
Current measuring ranges	±0…100 µA / 1 mA / 10 mA	±0…100 µA / 1 mA / 10 mA	±0…100 µA / 1 mA / 10 mA	±0…100 µA / 1 mA / 10 mA	±0…100 µA / 1 mA / 10 mA
Operating temperature	-20…+45°C -4…+113°F	-20…+45°C -4…+113°F	-20…+45°C -4…+113°F	-20…+45°C -4…+113°F	-20…+45°C -4…+113°F
Storage temperature	-25…+70°C -13…+158°F	-25…+70°C -13…+158°F	-25…+70°C -13…+158°F	-25…+70°C -13…+158°F	-25…+70°C -13…+158°F
Duty	continuous operation	continuous operation	continuous operation	continuous operation	continuous operation
PC interface	USB stick	USB stick	USB stick	USB stick	USB stick
Construction	in two parts: operation unit and high voltage unit	in two parts: operation unit and high voltage unit	in two parts: operation unit and high voltage unit	in two parts: operation unit and high voltage unit	in two parts: operation unit and high voltage unit

*at a cable capacitance of approx. 0.25 µF/km

**at a cable capacitance of approx. 0.36 µF/km

S-24 VLF
High Voltage Insulation Tester

Description

Technical data

Files to download

Files to download

S-24 VLF High Voltage Insulation Tester

Description

Technical data

Files to download

S-24 VLF
High Voltage Insulation Tester