Testers locate cable faults
A
Megger product story
Edited by the Engineeringtalk editorial team
Aug 28, 2007
In proof/burn mode, after cable breakdown has occurred, the testers apply a high current that stabilises the fault, making it much easier to locate.
Cable fault locators in Megger's new PFL40 range offer a full range of tests from a single compact and easily transportable unit.
They are designed specifically to aid rapid, accurate location of cable faults in power systems, thereby cutting downtime and, in distribution installations, costly "consumer minutes lost".
Despite their small size, PFL testers perform DC testing at up to 40kV and impulse testing with energies up to 2kJ.
The latest additions to Megger's established range of cable fault locators, which embody many of the patents granted to the company in this field, the new PFL40 units offer all of the test facilities needed for cable testing, cable fault diagnosis, pre-location of cable faults, fault conditioning and pin-point location of faults.
Users therefore have immediate access to all of the resources needed to deal swiftly with even the most intransigent of cable faults.
PFL40 cable fault locators feature a high-voltage DC test set, complemented by a time domain reflectometer (TDR).
The DC test set can be used to prove the integrity of cable networks or to confirm faults at voltages up to 40kV and currents up to 25mA.
An operator selectable overcurrent trip is incorporated to protect the system under test in the event of a cable breakdown.
Fault pre-location can be achieved using the TDR in standard pulse echo mode, or by the arc reflection, impulse current or voltage decay methods.
Acoustic pinpoint fault location, using the PFL40's high-voltage, high-energy surge generator, is also supported.
For intermittent or unstable faults, PFL40 testers offer a choice of fault conditioning features.
In proof/burn mode, after cable breakdown has occurred, the testers apply a high current that stabilises the fault, making it much easier to locate.
Alternatively, the arc reflection method can be used to establish a temporary bridge to earth, enabling standard pulse echo location techniques to be used.
Not what you're looking for? Search the site.
Contact Megger
Tel (UK)
Other Megger stories
-
KC leads for wind-turbine conductor testing
Megger's KC-series of test leads are said to be suitable for testing the continuity of lightning protection conductors in wind-turbine blades. -
Megger supplies test equipment to training schools
Trainees studying at two of Scottish Power's training schools are gaining experience with equipment and support material supplied by portable test equipment specialist Megger. -
Megger enhances MPRT to test to IEC 61850
Megger has introduced an IEC 61850 option for the MPRT, together with the new MGC (Megger Goose Configurator) software package. -
Megger unveils low-resistance ohmmeter
Megger's heavy-duty DLRO10HD low-resistance ohmmeter combines rugged construction with accuracy and ease of use. -
Pax Idax-300 tests transformer insulation
The Pax Idax-300 test set from Megger easily, quickly and accurately assesses the condition of the insulation in power transformers - a key indicator of future reliability and performance.
Browse by category
-
Capital Equipment (3,423)
- Capital Equipment (1)
- Compressors and Air Treatment (519)
- Electrical hardware (131)
- Electronics Manufacturing, Tools, Instruments (192)
- Machinery and Production Equipment (1,106)
- Manufacturing Machinery and Plant Equipment (468)
- Production line blowers and fans (65)
- Robotics, Handling and Storage (941)
- Consultancy and Services (909)
-
Control and Instrumentation (5,065)
- Cabling, Conduit, Signal Conditioning (807)
- CNC and Motion Controllers (187)
- Control and Instrumentation (2)
- HMIs/Operator Interfaces (295)
- Logic Controllers, Timers and Relays (96)
- Mid-range and Large PLCs (202)
- Plant- and Machine-Wide Communications (1,183)
- Plantwide control (1,336)
- Power Supplies, Uninterruptible Power (569)
- Smaller-Sized PLCs (388)
-
Drives, Motors and Controls (3,397)
- Drives, Motors and Controls (1)
- Industrial Drives/Controls (1,284)
- Industrial Motors (500)
- Linear Drives and Motors (115)
- Precision Motors and Gears (420)
- Stepper and Servo Drives, Motors, Controls (1,075)
-
Electrical and Electronic Equipment Design (4,209)
- Batteries, chargers and circuit protection (558)
- Connectors, Terminals, Busbars, Slip Rings (694)
- Electrical and Electronic Components (635)
- Electrical and Electronic Equipment Design (1)
- Electrical and Electronic Subassemblies (371)
- Enclosures and Equipment Cooling Fans (713)
- Knobs, Handles and Enclosure Hardware (425)
- PCs and Embedded Systems (812)
-
Engineering Design Software (6,232)
- 2D CAD software (201)
- 3D CAD software (1,162)
- CAM, CNC, production management software (572)
- Data, document management software (313)
- Electrical design software (165)
- Engineering Design Software (15)
- FEA and structural analysis software (374)
- File conversion software, data capture (355)
- Fluid, thermal, noise, vibration software (334)
- Materials design and moulding design software (152)
- Maths, charting, statistics, QA software (319)
- PLM and collaboration software (652)
- Process, instrumentation, automation software (261)
- Publishing and documentation software (230)
- Rendering, visualisation, styling software (201)
- Simulation, modelling, validation software (926)
-
Engineering Industry News, Resources (6,139)
- Electronic Resources for Engineers (278)
- Engineering Business News, Views (388)
- Engineering Conferences (432)
- Engineering Education, Resources, Standards (844)
- Engineering Exhibitions, Events (567)
- Engineering Guides, Newsletters (357)
- Engineering Industry Developments, Awards (635)
- Engineering Industry News, Resources (4)
- Engineering Industry Reports, Surveys (597)
- Engineering Recruitment, Employment (219)
- Engineering Seminars (405)
- Engineering Training Courses (442)
- Health and Safety Consultancy, Software (175)
- Health and Safety Events, Training, News (280)
- Health and Safety Legislation (402)
- Health and Safety Strategy, Risk Assessment (114)
- Machine Building (4,567)
-
Materials and Processing (2,993)
- Materials and components (2,236)
- Materials and Processing (5)
- Materials processing and testing (288)
- Rapid Prototyping (464)
-
Monitoring, Measurement and Quality (5,541)
- Data Acquisition Hardware and PC I/O Boards (479)
- Data acquisition Software and Communications (498)
- Data loggers (423)
- Electrical and Electronic Testing, PAT Equipment (636)
- Form/co-ordinate, optical, vision instruments (735)
- Gauges, Indicators and Instruments (445)
- Materials testing equipment (420)
- Monitoring, Measurement and Quality (1)
- Telecomms/network test equipment, software etc (156)
- Testing and Calibration Services and Information (509)
- Testing, analysing and monitoring equipment (1,239)
-
Powertrain Design (3,649)
- Bearings (958)
- Chains and belts (329)
- Gears, brakes, couplings and engines (1,456)
- Hydraulic Components (473)
- Lubricants (430)
- Powertrain Design (2)
-
Sensors (7,143)
- Accelerometers and Vibration Sensors (432)
- Barcode Sensors (103)
- Flowmeters and Flow Sensors (621)
- Gas, Chemical, Radiation, Magnetic Sensors (286)
- Humidity and Environmental Sensors (155)
- Level Sensors and Leak Detectors (529)
- Linear Position Sensors (408)
- Loadcells, Force Sensors, Torque Sensors (711)
- Pressure sensors (625)
- Proximity Sensors (708)
- Rotary Position, Tilt and Angular Sensors (551)
- Sensors (8)
- Temperature sensors (613)
- Vision and Colour Sensors (1,393)
- Small Mechanical Components, Joining, Tools (1,989)
- Valves, Pumps, Process Hardware (3,660)
