SWG-12 fault locating system

SWG-12 mobile cable fault location system is a complex solution for safe, fast and easy locating a faulty place on low and medium underground voltage cables. It includes a powerful high-voltage unit, which has a test, burn and surge generation modules, and a time-domain reflectometer for locating faults on cables.

Main features: 

– Suitable for portable application

– Easy to operate

– Multiple fault location methods included

– 10.4” High-contrast color TDR display

– Improved convenience for operator

– Heavy duty

The high-voltage unit of the system provides with high-power up to 1100 Joules surges at 3; 6 and 12 kV ranges. At each range, the output voltage is smoothly adjustable. The rate of surge waves can be smoothly adjusted. The single manual shot option is also included. The DC output mode is provided for quick fault diagnostics. The 100 mA burn mode is available.

Digital Impulse Reflectometer (TDR) provides you with 10.4-inch bright high-contrast TFT display with touchscreen. The 800 × 600 pixels resolution makes the picture sharp. The touchscreen allows an operator navigate through the menu fast and easy. An alternative way of navigation is included. It is provided with a control knob.

Reflectometer RIF-9 integrates a multiple ways of fault prelocation. It can be used either as a standalone device in TDR mode or in a conjunction with HV‑module, working in arc reflection mode.

Reflectometer RIF-9 has USB interface. The package content includes software for PC (optional), which allows working with saved reflectograms. The firmware can be easily updated through USB interface by inserting a flash drive.

Technical Specifications

Parameter Value
GENERAL parameters
Supply voltage, V 230 ± 23
Supply voltage frequency, Hz 50 ± 1
Power consumption (max.), kVA 2.0
Dimensions, mm 1171×775×603
Net weight, kg 120
HV-module parameters
Output DCV range, kV 0 – 12
Output DCI ranges, mA 1; 10
Output DCV range, kV 0 – 12
Output DCI ranges, mA 100
Ranges, kV 3; 6; 12
Surge rate, s 3 – 15 or single shot
Max. output energy, J 1100
TDR parameters
Distance measurement ranges, m @ v/2 = 100 m/µs 60; 120; 250; 500; 1000; 2000; 5000; 10000; 20000; 50000; 120000
Resolution, m 0.5 @ v/2 = 100 m/µs
0.4 @ v/2 = 80 m/µs
Sampling rate, MHz 200
Gain, dB -33 – 104
Output impedance (10 Ω steps), Ω 10 – 500
Propagation velocity (v/2), m/µs 50 – 150
Averaging reflectograms number, max. 64
Time domain accuracy, % of FS ± 0.2
Pulse amplitude, V 45
Pulse width, ns 10 – 100000
Operation modes TDR (reflection measurement) ARC (arc-reflection)
Control Touchscreen and control knob
Connectivity RS-485, USB
Internal data storage 4 Gb (not less than 1000 reflectograms with data)
Display 10.4”, 800×600 TFT, touch-sensitive

Operating Conditions

The device is designed for use in outdoor conditions (moderate humidity), or under a canopy by 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)

Package Contents

Component Quantity
HV-module 1
Connecting cables set (may vary on customer’s demand)
 10 m each
Power cable 10 m
LFG-50 Audio frequency generator Optional
P-900 Surge wave locator set  Optional
User Manuals 1


The Manufacturer guarantees the device’s SWG-12 conformity with the current technical documentation and the relevant Electrical and Safety codes and standards.

Limited Warranty period is 12 months from date of shipment of the apparatus to the consumer.


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