Skip to main content

Cable Test Vans by KEP for Reliable, Easy and Efficient Cable Fault Location

Cable test system

ETL-40 Vehicle Based System

Diagnostics of power cable sheath presents one of the biggest challenges in transmitting and distributing electricity, with the percentage of failure during cable exploitation still being high. These
failures happen due to the extremely long length of cable lines, soil inhomogeneity, and cable sheath heterogeneity along all cable length.

With the purpose of detecting serious insulation defects, megohmmeters are widely used. However, their readings cannot be relied on for the final evaluation of sheath condition because the readings depend mostly on the cable length and condition of bondings.



This is explained by the fact that the capacitance of power cables is high and, thus, is not fully charged in the time of resistance measurement. Therefore, the readings of a megohmmeter will not only be based on leakage current, but on charging current as well.

The most widespread method of monitoring the cable line sheath condition is testing with high direct current voltage. The aim of high voltage testing is to timely identify and fix degradation defects of cable sheath, couplings and bondings in order to prevent the appearance of cable faults during operation. So, the task of high voltage testing is to decrease quantity of cable failures while they are in being used.

The whole range of equipment required for diagnostics and high voltage testing is integrated in cable test vans by KEP.
Fault location van
Cable test vans by KEP allow to conduct high voltage testing of power cables and other elements of power grid systems such as insulators, power transformers winding, arresters, etc. The usage of such cable test vans makes cable fault location process much more efficient, easily tackling the issues that have been troublesome for power engineers for a long time.

Depending on the fault locating conditions, the distance to a cable fault can be measured with the incorporated RIF-9 using the TDR method, while the combination of surge wave generator and P-900 can be used to locate a fault with an acoustic method, and the combination of the LFG-generator and surge wave locator P-900 – with an inductive method.

Underground cable route locator
surge wave locator P-900



In addition, the application of the time domain reflectometer RIF-9 makes burning at the place of fault unnecessary, which accelerates the process of fault location and elimination. As for the acoustic method, it has almost solved the issue of locating difficult-to-detect single-phase faults and fused cable faults.

Another advantage of cable test vans by KEP is that these can be mounted into any vehicle according to customers’ choice depending on specific application circumstances.

Cable test and diagnosis system

VLF-60 Very Low Frequency High Potential Tester

Also, KEP’s cable test vans can be customized to meet the customers’ requirements. For example, in order to test XPLE insulation cables, cable test vans by KEP can be equipped with a very low frequency high potential tester.

The main priority of applying high voltage test equipment is the safety of servicing personal. The experience which has been gained in the course of cable test system exploitation confirms that the cable test vans by KEP correspond to the industry’s electrical safety standards.

Alexei Tiatiushkin
Marketing manager
KharkovEnergoPribor Ltd.
marketing@keppowertesting.uk
http://news.chivindo.com/362/cable-test-vans-by-kep-for-reliable-easy-and-efficient-cable-fault-location.html

Comments

Popular posts from this blog

BT-BASIC commands used

8.10     Some of the most frequently used BT-BASIC commands used are: msi                               Changes default working directory. Mass storage is            Same as “msi” cat                               Catalogs (list)the node names in the specified directory.             get                               Brings the contents of a file into the system workspace.             load                             Same as “get”.             msi$                            Returns the directory pathname of the current working directory.             msi “..”                       Backs up one directory level.             findn                            Locates the next occurrence of the a given sting in the workspace. 8.11           If you wish to invoke the HP Board Graphics Viewer, type board graphics at the BT-BASIC command line and press the “ENTER” key on the keyboard. 8.12           A HP Board Graphics Viewer window should now appear

Perhitungan & Cara Merubah Kumparan Blender Dari 220 V Menjadi 12 V

          Seperti yang telah dijelaskan pada buku “menggulung motor listrik arus bolak-balik, servis peralatan listrik rumah tangga kelompok penggerak dan perbaikan peralatan listrik pertukangan”, bahwa motor penggerak yang digunakan pada perlatan listrik rumah tangga dan pertukangan seperti blender, mixer, bor tembak, gerinda dsb menggunakan jenis motor universal. Motor universal adalah jenis motor listrik yang dapat disuplai dengan sumber listrik arus bolak-balik (AC) dan arus searah (DC). Jadi peralatan-peralatan listrik rumah tangga dan pertukangan tersebut yang biasanya kita suplai dengan sumber listrik AC dari PLN atau Genset sebesar 220 V sebenarnya dapat juga kita suplai dengan sumber listrik DC yang tentunya tegangan juga harus sama yakni 220 V.           Yang menjadi permasalahan bagaimana kalau peralatan listrik rumah tangga atau pertukangan tersebut, sebagai contoh misalkan blender yang ingin digunakan atau dioperasikan pada tempat yang tidak terdapat sumber listrik PLN ata

BT-BASIC command line

8.8       At the BT-BASIC command line type the command  msi  and the directory path, then press the “ENTER” key on the keyboard.  Example:                   msi ‘/hp3070/boards/aspect/main’ 8.9       At the BT-BASIC command line type the command  get ‘testplan’ and press the   ENTER” key on the keyboard.  You should now see the body of the testplan file displayed in the work space of the BT-BASIC window. 8.10     Some of the most frequently used BT-BASIC commands used are:

Autodesk SketchBook Pro 2021 Full Version

BAGAS31 – Sesuai dengan namanya, Autodesk SketchBook Pro 2021 Full Version ini merupakan software digital sketching atau drawing terbaik yang bisa kamu gunakan. Pada versi terbaru kali ini, ada beberapa penambahan fitur yang sangat efektif. Dengan fitur baru tersebut, diharapkan mampu meningkatkan proses sketching maupun drawing kamu. Autodesk SketchBook sendiri sudah bisa kamu dapatkan secara gratis melalui website resminya. Namun untuk kamu yang mau download versi Autodesk Sketchbook Pro, maka bisa langsung download melalui link yang sudah saya sediakan di bawah ini. Download Autodesk SketchBook Pro 2021 Full Version Screenshot: System Requirements: Windows 10 2.5 – 2.9 GHz of Intel or AMD CPU 4 GB of Memory 256 MB Graphics card with OpenGL 2.0 support We recommend that you use a pressure-sensitive tablet and pen for basic features Download: Autodesk SketchBook Pro 2021 Full Version [ FileUp ][ Uptobox ][ UsersDrive ] Jamu Only [ FileUp ][ Uptob

Testhead

4.3         Testhead The testhead is that portion of the tester that supports the PIN, ASRU and Controller cards.   The testhead is divided into two BANKS and each BANK is divided into two MODULES, see figure 2 below.  Bank 1 contains modules 0 and 1, bank 2 contains modules 2 and 3.  The test fixtures are placed on the banks of the tester and locked down for board testing.  The testhead cards interface to the test fixture through the spring loaded pogo pin “nails” at the top edge on each of these card types. 4.4       Support Bay The support bay is a stand-alone cabinet that houses the power supplies for the Unit Under Test.  This bay also houses the test station power distribution unit and test station controller on earlier models. 4.5       Emergency Shutdown Switch The emergency shutdown switch is the large red button located at the lower left corner on the front of the testhead.  It turns off all AC power to the testhead, and is equivalent to turning off the m

Kelebihan dan Kekurangan Saluran Listrik Jenis Saluran Udara dan Saluran Bawah Tanah

Berdasarkan pemasangannya,   saluran distribusi dibagi menjadi dua kategori, yaitu : saluran udara (overhead line) merupakan sistem penyaluran tenaga listrik melalui kawat penghantar yang ditompang pada tiang listrik. Sedangkan saluran bawah tanah (underground cable) merupakan sistem penyaluran tenaga listrik melalui kabel-kabel yang ditanamkan di dalam tanah. 1.    Saluran Bawah Tanah (Underground Lines) Saluran distribusi yang menyalurkan energi listrik melalui kabel yang ditanam didalam tanah. Kategori saluran distribusi seperti ini adalah yang favorite untuk pemasangan di dalam kota, karena berada didalam tanah, maka tidak mengganggu keindahan kota dan juga tidak mudah terjadi gangguan akibat kondisi cuaca atau kondisi alam. Namun juga memilik kekurangan, yaitu mahalnya biaya investasi dan sulitnya menentukan titik gangguan dan perbaikannya. Kedua cara penyaluran memiliki keuntungan dan kerugian masing-masing. Keuntungan yang dapat diperoleh dari suatu jaringan bawah tanah adalah