Sales Helpline: +91-11-41860000 | Email:

SWG12-11kV Portable Cable Fault Locator

Power Cable Fault Locator

SWG-12 is a 1-phase mobile cable test and fault location system, for buried power cables:

  • Test low-voltage power cables of 1kV up to 11KV medium-voltage cables or higher with:
  • DC voltage up to 12 kV
  • Fault conditioning by burning faulty cable insulation with current up to 100 mA @ 12 kV
  • Pre-locating cable faults with the reflectometer RIF-9 based on the low-voltage pulse reflection method (TDR), Arc reflection method (ARC single shot / ARC multi-shot), Current pulse method (ICE) and high-voltage decay method (DECAY)
  • Pinpointing cable faults with the acoustic method with 1100 J surge generator and a suitable signal receiver.

Powerful 1100 J surge generator with a surge voltage level switch allows maximum surge power at surge voltage ranges of 3, 6 and 12 kV. High surge energy enhances the possibilities of fault pinpointing byproviding a stronger signal in the conditions of high interference, deeply buried cables, or long distance to the place of fault.

Easy to Operate: Detachable reflectometer RIF-9 (pre-locator) is equipped with extra-bright 10.4'' display with touch screen technology &rotary controller knob, which makes fault pre-location quick through easy and efficient menu control.

SWG-12 provides a reliable, safe, and comprehensive solution for a complete servicing of low to medium-voltage voltage power cables.

Operating Mode:

  • Symmetric and Asymmetrical (time domain reflection) measurement
  • ARC single shot / ARC multi-shot pre-location
  •  Impulse current method (ICE)
  • Decay method
  • Surge levels 0 ... 3 / 6 / 12 kV
  • Fault conditioning (burning) with up to 100 mA @ 12 kV

Product Specification



High-voltage testing (DC)

Output voltage range

0…12 kV

Output current range

0…10 mA

Voltage adjustment type



Analogue output voltage and leakage current

in real time

Measurement error

± 3 %



Fault conditioning (Burn)

Output DC voltage range

0…12 kV

Output current range

0…100 mA

Voltage adjustment type



Analogue output voltage and leakage current

in real time

Measurement error

± 3 %













Fault pre-location (RIF -9)

Pre-location methods


· ARC single shot

· ARC multi -shot



Measurement ranges (for shortening

coefficient of 1.50 or v/2 = 100 m/μs)

0…60 / 120 / 250 / 500 / 1000 / 2000 / 5000 /

10,000/ 20,000 / 50,000 / 120,000 m


· for shortening coefficient of1.5 (v/2 = 100 m/μs)

· for shortening coefficient 1.87(v/2 = 80.2 m/μs)


0.5 m

0.4 m

Distance measurement accuracy

0.2% of measurement range

Sampling rate

200 MHz

Time mark accuracy

0.01 %

Output impedance range

2…100 Ω, resolution 2 Ω

Probe pulse parameters:

· voltage

· width range


45 V

10 ns…100 μs

Gain range

-21…+ 69 dB

Shortening coefficient range

0.750…3.000, resolution 0.001

Propagation velocity v/2 range

50.0…200.0 m/μs, resolution 0.1 m/μs

Probe pulse parameters:

·  reflectograms with parameters

·  data on cable shortening coefficients






Fault Pinpointing (Surge)

Surge voltage range levels

·         0…3 kV

·         0…6 kV

·         0…12 kV

Voltage adjustment within each level


Surge energy at each level

Up to 1100 J

Surge rate

Single discharge, manually triggered

4..20 surges/min, automatic mode


Analogue output voltage in real time






Controls and interfaces

Connection interfaces

· USB-A (user memory stick, formatted under FAT32)

USB-B (service only)

Graphical display

Reflectometer RIF -9

10.4” color TFT, 800 × 600 px, touch screen

Connection interfaces

· USB-A (user memory stick, formatted under FAT32)

USB-B (service only)

Operating modes switch


Surge voltage levels switch


Secondary control interface

Rotary encoder

Internal memory

10,000 test results




HV cable KEP -12DC

6 m

Power supply cable

6 m

TDR connection cable RG -58, 1-phase

2.4 m

Protective Earthing cable KEP -10GCt, copper 10 mm2, transparent

10 m

Earthing control cable (red)

6 m







· Operating against auxiliary grounding control

· Chassis potential control

· Overvoltage, overcurrent, overheating protection

· EMERGENCY STOP button, automatic discharge

· Operator lockout key

Power supply and consumption

Supply voltage

230 V ±10 % AC, single phase

Supply frequency

50 Hz

Power consumption

1.0 kVA

Power supply and consumption

Dimensions, H × W × D (with RIF -9)

1172 × 775 × 603 mm

Total weight (with RIF -9, connection



Protection rating (as per EN 60529)

IP 30 open, IP65 enclosed

Product Info Downloads
Product Info Downloads

Product Information files contain the essential technical detail you need to make informed decisions on any particular product. Simply click on a title to download a PDF copy of that file. If you wish a hard copy of a brochure, technical advice on any product or a demonstration then please contact us. We're always happy to help!

File Type
File Size
Last Uploaded
1.09 MB
May 11 2021 15:04:19
Related Articles
Related Articles
Northern Railway uses SWG 12 Power Cable Fault Locator to locate faults leaving no harmful impact on cables
Application Name: SWG 12 Power Cable Fault Locator to locate faults leaving no harmful impact on cables. Client - Northern Railway Project- End Use Requirement: Northern Railway requires checking installed power cables & locating faults on upto 11 KV. They require modern power fault locating equipment that helps in quickly locate cable faults without leaving any harmful impact on power cables. Solution: Northern Railway uses new generation SWG 12 power cable fault locator to locate faults leaving no harmful impact on cables. Previously Northern Railway was using primitive high-pressure voltage thumping method to locate power cables fault that usually turns damaging & reducing life of power cables, resulting in higher cost of new cables to be procured & installed which was otherwise avoidable. Hence, keeping the health of power cables in mind, they opt for using our new generation SWG series cable fault location system which has a number of high voltage method ...
Get In Touch
Want to Know More About our Products ?

Contact us today to find out more. We have our sales representative ready to help you with any subject matter related to our products

Top Categories