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STX40 Portable Fault Location System

Features Specifications FAQ Downloads
STX40 Portable Fault Location System STX40 Portable Fault Location System STX40 Portable Fault Location System STX40 Portable Fault Location System
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STX40 Portable Fault Location System

With its single rotatory knob or touch screen control, and fully automated motorised HV switches the STX 40 is the most convenient and most powerful portable fault location unit in the market. It is ideally suited for all essential fault locating tasks, namely analysing, prelocating and pinpointing of faults on low voltage and medium voltage XLPE or EPR insulated cables. With its 40 kV DC source and a potent high frequency burner it is also highly effective on PILC cables

Key Features:

  • Outdoor unit with exceptional all-terrain mobility: Lightweight, rainproof, optimised center of gravity, large pneumatic tires, adjustable handlebar, IP 43 rating, 119 kg (262 lbs)
  • Bright, sunlight readable 10.1” color display
  • Automatic operating mode selection and execution via software-controlled HV motor switches
  • To identify different types of faults: Insulation test up to 20 kV and 650 MΩ
  • DC test (DC hipot) up to 40 kV, with automatic voltage breakdown detection and ramp function
  • Built-in and functionally integrated Radar/TDR as well as ARM, ICE and DECAY prelocation methods
  • Surging (Thumping) at 8/16/32 kV with 2,000 J Optionally available: additional 4 kV stage with 1,100 J
  • High frequency burn mode with up to 40 kV DC and up to 850 mA, for improved fault conversion performance over conventional burn-down units with burn transformer

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STX40 Portable Fault Location System
Features
  • Large 10.1‘‘ sunlight readable touchscreen colour display
  • Very easy to operate because of its intuitive and straightforward piechart interface
  • Automatic smart measurement mode with no user intervention needed, but full expert access to all settings whenever desired
  • ARM® Multishot technology: 32 HV fault traces are captured with a single arc reflection shot
  • ARM® Best Picture technology: Intelligent algorithm analyses all 32 Multishot traces and automatically displays the best trace
  • Exponential distance-dependent de-attenuation of +40 dB for improved measurement of far-away reflections
  • Displays up to 6 traces simultaneously, ideal for phase comparison
  • Automatic cable end recognition and flagging of fault position High quality measurement with very fast data rate of 533 MHz
  • Dedicated internal output impedance compensation not required anymore thanks to sophisticated and advanced signal path design
  • Automatic storage of all measurement data and large memory for storing > 100,000 radar measurements
  • USB port for export/import data transfer and protocol printing via Reporting Edition software package
  • Many different language versions available STX40-P
  • High-end portable standalone cable fault location unit
Specification

HIGH VOLTAGE PART TECHNICAL DATA

Protection class

IP 43, weather-resistant and rainproof

Weight

119 kg (262 lbs) standard version
124 kg (273 lbs) extended version

Insulation test

Voltage ranges of 5/10/15/20 kV
Measuring range of up to 650 MΩ

HV DC source

0 … 40 kV DC test (DC hipot)
50 mA nominal continuous current at 40 kV

Breakdown detection

0 … 40 kV

Burning

High frequency burner
Voltage ranges of 40/20/10/5 kV
Max burn currents of 100/200/400/850 mA

Standard surge levels

0 … 8 / 0 … 16 / 0 … 32 kV
2,000 / 2,000 / 2,000 J

Additional surge levels

Optionally 4 kV with 1,100 J

Surge rate

Adjustable 3 … 10 sec, and single shot;
3 seconds at full output of 32 kV

Sheath testing
Sheath fault pinpointing

Voltage ranges of 3/5/10/20 kV DC Pulsed DC from HV DC source for
voltage gradient method (step voltage method)
Pulse sequences of 0.5:1, 1:3, 1:4, 1:6

Built-in prelocation

32 kV inductive ARM Best Picture Multishot 32 kV ICE 40 kV DECAY
Mode for locating intermittent faults (IFL)

Operating temperature

-20°C ... +55°C (-4°F ... +131°F)

Storage temperature

-40°C ... +70°C (-40°F ... +158°F)

Mains input supply

2.5 kW wide range power supply 110 ... 230 V AC, 50/60 Hz
Limited to 1.6 kW at 120 V AC (as per ANSI NEMA 5)

Dimensions (L x W x H)

710 x 740 x 1,080 mm
(27.9 x 29.1 x 42.5 in.)

 

TDR setup

Physically and functionally integrated

Display
LCD size Aspect ratio Resolution Backlight Luminance

Industrial grade colour TFT panel 10.1‘‘
16:10
1,280 x 800 (WXGA) LED
1000 cd/m² directly bonded
Anti-glare touchscreen

Pulse generation

Bipolar

Pulse amplitude

±100 V adjustable

Pulse width

20 ns … 10 µs

Pulse power

Unrestricted continuous operation and unrestricted fast pulse repetition with
full power pulse of 10 µs at ±100 V

Measuring range XR

20 m … 320 km at VOP = 80 m/µs

Resolution

0.1 m at VOP = 80 m/µs,

Accuracy

0.1%

Timebase Accuracy

Better than 50 ppm

Dynamic range

115 dB

ProRange

Yes, +40 dB
(distance-dependent de-attenuation)

Data rate

533 MHz

Velocity of propagation

10     149.9 m/μs
VOP expressed in m/µs or ft/μs or nominal

Output impedance

50 Ω, no dedicated internal compensa-
tion necessary

ARM®  trigger

ΔU or L-H trigger technology with
automatic adjustment

Multishot support

Yes, 32 HV fault traces,
Best Picture®  algorithm
FAQ
Downloads
Title File Type File Size Downloads View Last Uploaded
Product Datasheet application/pdf 2.81 MB Download View April 02 2025 21:22:35

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