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SWG32-33kV Portable Cable Fault Detector

Cable Fault Detector Machine

SWG-32 is a 1-phase mobile cable test and fault location system, for buried power cables.

  • Test medium & high -voltage cables with DC voltage up to 32 kV.
  • Fault conditioning by burning faulty cable insulation with current up to 100 mA @ 32 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 2000 J surge generator and a suitable signal receiver

Powerful 2000 J surge generator is accompanied with a surge voltage level switch allowing receiving maximum surge power at 8, 16 and 32 kV. High surge energy enhances the possibilities of fault pinpointing by providing a stronger signal in the conditions of high interference, deeply buried cable, 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-32 provides a reliable, safe, and comprehensive solution for a complete servicing of medium & high voltage power cables.

Operating Modes:

  •  Symmetric and Asymmetrical (time domain reflection) measurement
  • ARC single shot / ARC multi-shot pre-location
  • Impulse current method (ICE)
  • Decay method
  •  Surge levels 0 ... 8 / 16 / 32 kV
  • Fault conditioning (burning) with up to 100 mA @ 32 kV

Product Specification



High-voltage testing (D C)

Output voltage range

0…32 kV

Output current range

0…10 mA

Voltage adjustment type



Analogue output voltage and leakage current in real time

Measurement error

± 3 %



Fault conditioning


Output DC voltage range

0…32 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


Pre-location methods

· T DR

· 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 of 1.5(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 voltage range levels

· 0...8 kV

· 0...16 kV

· 0...32 kV

Voltage adjustment within each level


Surge energy at each level

Up to 2000 J

Surge rate

Single discharge, manually triggered

4…12 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, resistive touch

Operating modes switch


Surge voltage levels switch


Secondary control interface

Rotary encoder

Internal memory

10,000 test results





HV cable KEP -40 DC

10 m

Power supply cable

10 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)

10 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

2.0 kVA



Dimensions, H × W × D (with RIF -9)

1215 × 764 × 675 mm

Total weight (with RIF -9, connection cables)

185 Kg

Protection rating (as per EN 60529)

IP 30 open, IP65 enclosed

Frequently Asked Questions (11 answered questions)
LT, MV and HV cables up to 33 kv rating

Person name: Asian


Person name: Asian

That depends on whether you are an industry/ factory, in which case we suggest trolley mounted portable . If you are a DISCOM/ large area network - van mounted CFL would be the better option.

Person name: Asian

Yes, Hipot (DC)testing upto 32 kv is built in.

Person name: Asian

TDR pulse, ARM, ICE, DECAY and Burning (fault conditioning).

Person name: Asian

Yes, and aslo has rotary encoder for operation

Person name: Asian

up to 120 km, depending on V/2

Person name: Asian

Key interlock, auto discharge, emergency off button, over voltage/current/ heating protection.

Person name: Asian

Surge generator, prelocator tdr, surgr wave receiver pi pointer and cable route tracer.

Person name: Asian

Yes, it can be fitted into a small van apart from being a trolley mounted portable system.

Person name: Asian

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