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LB4/60A Smart Bridge for Cable Fault Location
LB4/60A Smart Bridge for Cable Fault Location
LB4/60A Smart Bridge for Cable Fault Location

LB4/60A Smart Bridge for Cable Fault Location

1.No need to analyze waveform (TDR reflection based technologies)
2.Directly show the fault distance
3.Compact and lightweight
4.Suited for prelocating difficult, high-resistive faults
5.With burning function up to 60kV
6.One knob to easy operate
description1
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Overview

Overview

The LB4-60A is a highly accurate high-voltage bridge designed to pre-locate cable faults. We add burning function inside with a high voltage up to 60kv which will be useful to high-resitive faults.
Why do you need an HV bridge when you have ARM based prelocation?
Because it locates faults where the otherwise perfect reflection based technologies have limits, for example on long cables as subsea cables.
  • TDR reflection based technologies have very large reflections on crossbonded cables, which prevent longer ranges
  • Reflection measurements are based on an impedance measurement, while the LB4-60A measures resistance. Resistance and impedance values can be completely different while having the same cause.
  • The main insulation wave reflection characteristics of low-voltage cables are bad, making it difficult to obtain effective TDR reflection
Parameters

Parameters

TECHNICAL DATA
Test mode Intelligent diagnosis mode, bridge mode, cross section mode,burn through mode
Intelligent diagnostic mode
Function Automatically determine the fault type, recommend the test
method, guide into the burn through mode or ranging mode
Output voltage 0~60kV DC, negative polarity
Burn through mode
Output voltage 0~60kV DC, negative polarity
Short circuit current 400mA
Burn through power 20~100%, adjustable
Burn through time 0~90min, adjustable
Bridge mode
Output voltage 0-4kV DC, bipolarity
Output current 0-750mA
Cross section mode
Cable cross-sectional area 1-9999mm2, adjustable
Boost operation CNC operation, automatic boost
Test range 0.001-50km
U-t, I-t change relationship Two-dimensional coordinate map display
Voltage and current display Digital display, no dashboard
Positioning accuracy ± (0.1%·L+1) m (L is cable full length)
Grounding detection Contact resistance between the test ground and the protection ground should be less than 10Ω
Safety Temperature detection, automatic protection loop, double ground system
Screen 320*240 LCD, visible in sunlight
Data storage Record historical data in ranging mode, max 100 pieces
Max output power 400W
Memory 32G, USB port
Operating temperature -25°c ~50°C
Storage temperature -30°C~60°C
Humidity < 95% no condensation
Power supply AC 100V~240V, 50/60Hz
IP IP43
Weight 22.5kg (without accessories)
Size(Lx W x H) 300x460x500mm
Features

Features

Appearance:exquisite, portable,integrated

1.Exquisite: US PALICAN trolley case.

2.Portable:integrated trolley case.

3.Integrated: set intelligent bridge and constant current burn through in one.

Strong power to burn through

1.Bum-through voltage output up to 60kv.

2.Bum-through current output up to 400mA.

3.Quicky burn through superhigh resistance fault.

New digital location mode

1.Showing the fault distance by number.

2.Solving problems with waveform difficult to analysis.

3.Easy to locate cable's intermediate joint fault.

4.One button operation makes things easier.

Intelligent location: compared withtraditionalimpulse-reflect method

1.High accuracy:intelligent bridge method no dead zone.

2.Easy analysis: no need to see the waveform, showing thefault distance by number.

3.Wide range: very applicable to locate big section and longdistance fault.

4.Diversification:intelligent HV bridge method, voltage dropmethod,sectional area method.

5.Specificity:very effective to water-in and stable highresistance fault.

Applications

Applications

1.Meet faults while TDR reflection based technologies can not work good
2.Meet high-resistive faults need to burn through which will be easier to locate
3.Want to see fault distance directly with no analysis waveform
4.Pre-locate sheath fault of a cable

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