Cable Fault Locator System

Cable Fault Locator System (8)

Friday, 07 August 2015 16:33 Written by

Surge Generator

SCOPE offers CFL Series, new generation Cable Fault Locator Test System, an ultimate solution for locating all types of underground cable faults in minimum time, thus saving long outages and consequential revenue loss & inconvenience. SCOPE offers full range of products required for fault location of LT/HT telecom and power cables. It includes various models of Surge Generators (Thumpers), Pre-Locators, Pin-Pointers, SIM Filters and Audio Generators. Based on application requirements correct models can chosen and product configuration can be optimized.

Brief table giving availability of models is given hereunder.

Others

Product Model
Surge Generator (Thumper) CFL SG 1605/1610/3210/3220
Pre Locator CFL PL2, CFL PL3, CFL PL4
Pin Pointer CFL PP3
Audio Generator CFL AG2
SIM Filter CFL SIMF
Cable Identification System CFL CIS

Cable Fault Surge Generator: CFL SG Series
SCOPE offers CFL SG Series Surge Generators ranging from 16 kV to 32 kV and 500 Joules to 2000 Joules.

Features

  • Compact, rugged design.
  • Key Lock Switch to prohibit unauthorized operation.
  • Variac Zero & Output Plug Interlock for HV circuit.
  • HV Switch Interlock.
  • Over Heat Protection at 70 deg C.

Specifications

Parameter CFL SG1605 CFL SG1610 CFL SG3210 CFL SG3220
Output Ranges 0-4/0-8/0-16 kV 0-8/0-16/0-32 kV
Output Energy 500J 1000J 1000J 2000J
Impulse Period Sequence Single Impulse/ 4 Sec /8 Sec Single Impulse 2 Sec/4 Sec /8 Sec.
Fault Distance Measurement Mode ICM (Internal Current Coupler) / SIM Filter
Output Voltage Indication Moving Coil Meter with 3 Ranges
Protections Key Lock Switch , Variac Zero Interlock, HV Switch Interlock , Output Plug Interlock,
Over Heat Protection with LED Indicator
Input Supply 230V AC +/-10%, 50/60Hz
Environment 0 to 50 deg C, 95% RH (Non-condensing)
Housing Elegant, rugged aluminium housing. CFL SG will be directly mounted inside trolley,
if optional trolley is purchased.
Dimensions 484(L) X 360(W) X 580(H) mm 540(L)X 430(W)X 750(H) mm Main Unit: 540 (L)X 430 (W)X 750 (H) mm Additional Capacitor Bank: 540 (L)X 300 (W)X 400 (H) mm
Weight 55 Kg. 60 Kg. 95 Kg. 95 Kg. + 40 Kg.
Thursday, 03 December 2015 10:25 Written by

CFL PL4

Underground cable faults cannot be avoided due to many factors such as road widening, infrastructure improvement, digging carried out for repairs of other underground utilities etc.

These faults generally take long time to detect and hence long time to repair the damaged cables and restore the power supply. Long outages cause heavy production loss to industries, revenue loss to power distribution companies and inconvenience to general public. This calls for quick fault location and restoration of power supply in minimum possible time.

An ordinary fault locating kit comprising of diagnosis set and pin-pointing equipment can take long time to locate fault point. SCOPE offers pre-locator instruments that can give the fault distance to help the operator for reaching the spot quickly and pin-pointing the fault in a short time.

CFL PL4 Power Cable Fault Locator is a portable, easy to use cable fault pre-location instrument. It uses the Time Domain Reflection (TDR), Secondary Impulse Method / Multiple Impulse method (MIM) and Impulse Current Method (ICM) on low, medium and high voltage cables. Its measuring ranges enable pre-location on cable lengths from 500 m to 64km.

CFL PL4 is operated through function keys and touch screen, it is fully menu guided. This instrument is supplied with rechargeable lithiumion batteries.

Features

  • Adjustable Balance of instrument resistance to suit the cable under test.
  • Adjustable Gain for optimal waveform resolution.
  • Facility to store & compare the waveforms.
  • Housed in rugged, IP class moulded case.
  • Compact and light weight.
  • Large range of Propagation Velocity from 90 to 300m/ μS covers all type of cables including pilot and telecom able with any type of insulation.
  • Interactive menu-guidance
  • Touch screen and color LCD
  • Measuring range up to 64 km
  • USB port for communication
  • Memory upto100 results

Specifications

  • Voltage of transmitting pulse : 30V
  • Width of transmitting pulse : 40 ns-3.56 μs
  • Voltage withstand : 400V AC (50/60Hz)
  • Output impedance : 5 - 80Ω
  • Measuring range : 0 – 64 km
  • Sampling rate : 100MHz (10ns)
  • Location error : TDR and MIM mode:≤±1m when detecting range ≤4 km ≤±4m when detecting range >4 kmICM mode:≤±4m when detecting range ≤4 km ≤±16m when detecting range>4Km
  • Propagation velocity : 90-300 m/μs
  • Number of echograms memories: >100
  • Display: 640x480, Touch screen and Color LCD
  • Charging voltage :Input: 110 – 265V AC Output: 8.4V± 10% DC
  • Rechargeable batteries : Operation time upto 5hrs
  • Operating temperature : -20 to 50 °C
  • Storage temperature : -40 to 60 °C
  • Type of protection IP54 : Splash Proof and Dust Protected
  • Dimensions : 330mm×305mm×152mm

 

Thursday, 03 December 2015 12:03 Written by

Audio Generator

The audio frequency Generator CFL-AG2 is especially designed for accurate locating of cable faults and joints according to the twist method. With the display of the output current, the selection of the correct adjustment is easy.

Features

  • Powerful audio frequency transmitter up to 20W.
  • Frequency 1 kHz, quartz stabilized.
  • Potential-free output.
  • Output voltage in 7 level.
  • Two working modes, Continuous (CONT) and Intermittent (INTM).
  • Continuous and Intermittent.
  • Easy to operate.
  • Automatic protection of overload and with high reliability.
  • Indication of output current.

Specifications

  • Output power: 20W
  • Max. output current: 2.8A ± 20%
  • Frequency: 1kHz Sine wave
  • Output voltage: In 7 steps: 4 – 7V/ 15 – 25V/
  • 30 – 40V/ 60 – 70V/ 90 – 100V/ 150 – 170V/ 200 – 230V
  • Operating modes: Continuous and Intermittent
  • Display: Output current
  • Output: Polarity terminals on panel
  • Power supply: AC 230V±10%, 50Hz±10%
  • Internal instrument protection: Over current limitation
  • Operating temperature: 20 to + 40 ° C
  • Dimensions (W x H x D): 275 mm x255mm x 130mm
  • Weight: 2kg
Thursday, 03 December 2015 12:04 Written by

Pin Pointer

The most versatile Cable Fault Pin Pointer yet, SCOPE’s CFL PP3 is suitable for pin-pointing as well as route tracing of any type of power cable. For pinpointing it is used along-with CFL SG Series Surge Generators from SCOPE and for route tracing it is used along-with Audio Frequency Generator, CFL AG2 from SCOPE. Advanced technology with features like time lapse measurement makes it a tool that can tackle complicated faults easily. 

Ambient noise during pin-pointing has always been a problem. CFL PP3 with simultaneous display of magnetic and acoustic waveforms indicates the exact fault spot eliminating the above problem. It guides the operator about the lay of the cable under test during pin-pointing. The LCD display constantly gives information to the operator about any deviation of the cable route being followed. The instrument offers results based on vision. Thus the ground microphone becomes secondary tool to locate the exact fault spot.

The instrument incorporates separate route tracing circuit to be used with Audio Frequency Generator, CFL AG from SCOPE. The system has flexibility of coupling to the cable galvanically (direct connection) for isolated cable and inductively coupled if the cable is live. The depth of the cable under test is located with conventional triangulation method with precise accuracy. This system configuration can also be used to pin-point low resistance welded faults, where surge generator cannot be used.

Features

  • Can be used for both pinpointing as well as route tracing.
  • Both magnetic & acoustic inputs making pinpointing very convenient.
  • Digital filters to eliminate external influences.
  • Highly effective shielding against environmental noises.
  • Improved acoustic signal pick up features.
  • Highly sensitive magnetic signal pick up.
  • Large LCD display with backlit facility.
  • Internal Li-ion chargeable battery.
  • Specially made light weight case ensuring minimum strain to operator.
  • Water resistant and dust proof design.
  • User friendly and simple operation.

Specifications

  • Filter Frequency: 200Hz, 300Hz, 500Hz
  • Time Delay Resolution: 0.2ms
  • General
    • Filter: Digital
    • Accuracy: High Resistance Fault: 0.1m
    • Route Tracing: 0.2m
    • Low Resistance Fault: 2m
  • Amplification: >120 dB, adjustable
  • Headphone Output: 3.5mm
  • Power Supply: 7.4 V Lithium-ion rechargeable battery• Power Consumption: 3W
  • Charger: Input: 230 VAC±10% ; Output: 8.4 VDC
  • Environment: 0 to 50oC, 95% RH (Non-condensing)
  • Dimension: 230mmx140mmx170mm
  • Weight: 1.5kg

 

Thursday, 03 December 2015 12:04 Written by

SIM Filter

Cable Fault Secondary Impulse Filter CFL SIMF is mainly used for high resistance and flashing fault test for power cable with the voltage below 10kV, and for fault location with Secondary Impulse with conjunction of Pre-locator and HV surge generator .Latest fault locating technique for high resistance and flashing faults is Secondary Impulse Method (SIM).This method offers highly reliable results for faults on any type of power cable. It converts the faults to low resistance nature by creating arc across the fault. With the help of filter, the arc is sustained for extended period during which the pre-locator instrument CFL PL3 sends Time Domain Reflectometer (TDR) waves to the fault. These waves reflect back from the fault point and appear on the display as a short fault. This method gives precise result of fault distance for high resistance and flashing nature faults.

SIM filter SIMF is designed for mounting in a van for quick fault location. It can be mounted in a rack mounted system.

It is passive filter having own output power source. It uses the energy of the surge generator to create arc at the fault point.

A high voltage switch incorporated in the output circuit facilitates selection of SIM or ICM mode.

 

Specifications

  • Output Voltage: 1800 VDC, Negative Polarity
  • Arc Stabilization Time: ≥20 ms
  • HV Input: Max. 32 kV DC Negative Polarity
  • Input Power Supply: AC 220V±10%, 50Hz±10%
  • Environment: 0 to 50˚C, 95% RH (Non-condensing)
  • Dimension: 380mm x 280mm x 460mm
  • Weight: 15kg
Thursday, 03 December 2015 12:05 Written by

Sheath Fault Locator

Sheath Fault Locator is used for the identification of Sheath/earth faults which can get developed in any type of underground cable like LT or HT power cable or in unshielded multi core control cables. It can be a manufacturing defect or can get developed by improper handling during laying / external damage or any other reason due to which the metallic armour or cores develop leakage with the mass of earth. These faults can remain undetected for a long time as they do not hamper the working of the cable. However, this fault gets converted to a full-fledged fault

over a period of time.

CFL SFL can successfully locate sheath / earth faults on any type of cable. It offers different modes such as DC test / HV Test, Burning, pre-location and pin-pointing.

Features

  • Three manually selectable convince DC ranges for application.
  • Cable and cable sheath testing up to 5 kV between metallic sheath / armour and mass of earth.
  • Automatic sheath fault pre-location with high precision measuring bridge method.
  • Cable sheath fault pin pointing by pool of potential method / fall of potential method /potential difference method.
  • Burn mode for conditioning the sheath fault - Conversion of high-resistance faults in LT cables.
  • Maximum 400 mA current gives better results.
  • Extremely user friendly to calculate the fault distance; uses a micro-controller based fault distance calculator that enables the operator to get the pre-location measurements with precise accuracy.
  • Automatic discharging facility of cable under test, in case of power failure or after switching off.
  • Continues operation for extended period in case of pin-point difficult sheath faults.
  • Rugged construction and easy to carry on site.

Specifications

Parameter  Quantity 
 Power Supply  230V, ±10%, 50Hz, single phase
 Test Voltage  0-2.5Kv and 0-5kV DC continuously variable
 Test Current  200mA @2.5kV, 100mA @ 5kV
 HV range Selection  Manual 
 Indication

 On / off lamp indication

Analog moving coil meter for output voltage (kV) indication

Analog moving coil meter for output current (mA) indication

Over heat LED indication

Sheath voltage drop indication on DPM (0-1.9999V)

Fault pre-location distance on LCD display.

 Pulse ratio for pin-pointing  1:3 sec and 1:6 sec selectable on off time ratio
 Fault Distance Calculator  LCD display-16 x 2 characters with back light
 DPM power supply  6 V, 1.5 Ah rechargeable battery
 Over load Protection

 Main Input current MCB switch in Live

 

Safety Protections

Variac Zero inter-lock

Output cable Plug inter-lock

HV Switch inter-lock

Over Heat Protection

Emergency off switching

Earth Discharge Soft automatic discharge through in-built solenoid
Cooling system Air cooling
Operating Temperature 0°C to 50°C

Standard Accessories

  • 10 sq mm single core screen output HV cable with heavy duty brass clamps 5 meter length
  • Dual single core cable for pre-location 5 meter length
  • Two single core cable for pre-location 5 meter length
  • Mains supply connecting cord 3 meter
  • Yellow/green earthing cable 5 meter
  • External Battery charger for DPM supply
Thursday, 02 February 2017 05:30 Written by

CFL PL3

Cable Fault Locator

Underground cable faults cannot be avoided due to many factors such as road widening, infrastructure improvement, digging carried out for repairs of other underground utilities etc.

These faults generally take long time to detect and hence long time to repair the damaged cables and restore the power supply. Long outages cause heavy production loss to industries, revenue loss to power distribution companies and inconvenience to general public. This calls for quick fault location and restoration of power supply in minimum possible time.

An ordinary fault locating kit comprising of diagnosis set and pin-pointing equipment can take long time to locate fault point. SCOPE offers pre-locator instruments that can give the fault distance to help the operator for reaching the spot quickly and pin-pointing the fault in a short time.

CFL PL3, new generation Cable Fault Pre-Locator from SCOPE is the ultimate solution for locating underground cable faults in minimum time. It uses advanced technology for fault distance measurement which helps even an unskilled operator to locate the fault with accuracy.

CFL PL3 is an advanced fault locating instrument. Three operating modes offered by the instrument enable the operator to locate all types of faults on any cable in minimum possible time.Complex and difficult to locate nature fault are located by CFL PL3 with high accuracy. These features classify the instrument to be a part of fault locating kit of Heavy Industries & Power Distribution Company.

Features

  • Measuring rage up to 16 km.
  • Large LCD & User friendly operation.
  • Adjustable Balance of instrument resistance to suit the cable under test.
  • Adjustable Gain for optimal waveform resolution.
  • Facility to store & compare the waveforms.
  • Memory to store up to 50 waveforms.
  • Housed in rugged, IP class moulded case.
  • PC connection via RS 232.
  • Printer connection via RS 232 (Printer is optional).
  • Compact and light weight.
  • Large range of Propagation Velocity from 90 to 300m/μS covers all type of cables including-pilot and telecom able with any type of insulation.

Specifications

  • Transmitting Pulse Amplitude : 30V
  • Transmitting Pulse width : 40ns-3.56μs
  • Voltage withstand : 400V AC (50Hz)
  • Output impedance : 5-80Ω
  • Measuring Range : 0-16 km
  • Sampling Speed : 100MHz
  • Resolution : TDR Mode and SIM Mode : <± 1m up to range <4km <± 4m for ranges >4 km ICM Mode : <± 4m up to range <4 km <± 16m for ranges >4km
  • Propagation Velocity : 90-300m/μs.This range covers all the cables including pilot and telecom cable with any type of insulation.
  • Ranges : 500m, 1km, 4km, 5km, 8km & 16km. The operator can choose right range to get better resolution at fault point.
  • Balance Adjustment : Under TDR mode it is required to balance the instrument resistance to suit the cable under test with this control the instrument resistance can be varied between 5 ohms to 79 ohms.
  • Memory : 50 waveforms
  • Display : 320x240 pixels
  • Charging voltage : Input: 230V AC: Output: 8.4V±10% DC
  • Operating time of rechargeable batteries: Approx. 5hrs
  • Operating Temperature : -10˚C to 50˚C
  • Storage Temperatures : -10˚C to 70˚C
  • Type of protection IP 54 : Splash proof and dust protected
  • Dimensions : 330 x 305 x 152mm
  • Weight : 3kg

 

Thursday, 02 February 2017 08:27 Written by

CFL PL2

Underground cable faults cannot be avoided due to many factors such as road widening, infrastructure improvement, digging carried out for repairs of other underground utilities etc.

These faults generally take long time to detect and hence long time to repair the damaged cables and restore the power supply. Long outages cause heavy production loss to industries, revenue loss to power distribution companies and inconvenience to general public. This calls for quick fault location and restoration of power supply in minimum possible time.

An ordinary fault locating kit comprising of diagnosis set and pin-pointing equipment can take long time to locate fault point. SCOPE offers pre-locator instruments that can give the fault distance to help the operator for reaching the spot quickly and pin-pointing the fault in a short time.

CFL PL2, new generation Cable Fault Pre-Locator from SCOPE is the ultimate solution for locating under ground cable faults in minimum time. It uses advanced technology for fault distance measurement which helps even an unskilled operator to locate the fault with accuracy.

The instrument has simple operating modes with which any types of fault on cable can be located with high accuracy. The CFL PL2 is cost effective solution for the job.

Features

  • Measuring rage up to 16 km.
  • Large LCD & User friendly operation.
  • Adjustable Balance of instrument resistance tosuit the cable under test.
  • Adjustable Gain for optimal waveform resolution.
  • Facility to store & compare the waveforms.
  • Memory to store up to 50 waveforms.
  • Housed in rugged, IP class moulded case.
  • PC connection via RS 232.
  • Printer connection via RS 232 (Printer is optional).
  • Compact and light weight.
  • Large range of Propagation Velocity from 90 to 300m/ μS covers all type of cables including pilot and telecom able with any type of insulation.

Specifications

  • Transmitting Pulse Amplitude :30V
  • Transmitting Pulse width : 40ns-3.56μs
  • Output impedance : 5-80Ω
  • Measuring Range : 0-16 km
  • Sampling speed :100MHz
  • Resolution : TDR Mode : <±1m up to range <4km<± 4m for ranges >4 km ICM Mode: <± 4m up to range <4 km<± 16m for ranges >4km
  • Propagation Velocity : 90-300m/ μs.This range covers all the cables including pilot and telecom cable with any type of insulation.
  • Ranges : 500m,1km,4km,5km,8km and 16km. The operator can choose right range to get better resolution at fault point.
  • Balance Adjustment : Under TDR mode it is required to balance the instrument resistance to suit the cable under test. With this control the instrument resistance can be varied between 5 ohms to 79 ohms.
  • Memory :50 waveforms
  • Display : 320x240 pixels
  • Powered by Chargeable Li-ion Battery.
  • Charging voltage : Input: 230V AC : Output: 8.4V±10% DC
  • Operating time of rechargeable batteries: Approx. 5hr
  • Operating Temperature : -10