WKSL®
Computer aided system for pulse localization of damages of overhead high-voltage transmission lines WKSL®.
Application
Computer aided system for pulse location of damages of overhead high-voltage transmission lines called WKSL® is a unique solution offered on the market, designed for fast, safe and very precise location of transmission line failures, i.e. phase-to-phase faults, earth faults, constant or momentary, as well as breaks in live conductors or disconnected wires. The WKSL® system is designed to locate failures in transmission lines with working voltage 110 kV, 220 kV, 400 kV and higher, provided with capacitor voltage transformers or bypassing capacitors. The use of WKSL® location system in a given power supply object increases the safety of line maintenance and exploitation and helps to improve the reliability of power supply and to shorten possible power cuts.
Structure
The WKSL® location system is composed of:
• pulse fault finder of a type LAS-4,
• pulse fault finder of a type LAS-2N (option),
• line switch of a type PLN-1K (option),
• interconnecting and protecting unit of a type LUZ-1.1,
• PC computer with software LAS® to operate the system WKSL®.
Operation
The principle of operation of fault finders LAS-4 and LAS-2N is based on a method of pulse-reflectometry measurement of a distance from failure site and computer aided collection, processing and analysis of data delivered by the fault finder system.
Computer
Min. PC class: Processor INTEL PENTIUM III 1GHz, card SVGA 32MB , RAM 256MB, HDD 10GB, FDD 3,5" 1,44MB, CD-ROM, 10/100MBps, internal modem 56k (option), monitor 17" 1024x768 minimum resolution, printer. Software: Operation program LAS for Windows XP Prof. PL (Windows 2000).
Download a catalogue| FAULT FINDER LAS-4 | ||
| Supply voltage | 220V ±10% DC | |
| Max. range | 175 km | |
| Measuring accuracy | 1% line length ±50m. (1 sample) | |
| Number of supervised lines | od 1 do 4 | |
| Measurement duration of one line | 15 ÷ 21,5 ms | |
| Measurement duration of two lines (*) | 28 ÷ 34,5 ms | |
| Measurement duration of three lines (**) | 42 ÷ 47 ms | |
| Measurement duration of four lines (***) | 55 ÷ 61 ms | |
| Method of reading the result of measurement | On monitor display | |
| (*),(**),(***) measurement duration by simultaneous activation from start-up protection units of subsequent two, three and four lines | ||
| FAULT FINDER LAS-2N | ||
| Supply voltage | 220V ±10% DC | |
| Max. range | 150 km | |
| Measuring accuracy | 1,5% line length ±150m. (1 sample) | |
| Number of supervised lines | 1 | |
| Duration of singular measurement | 25 ÷ 45 ms (depending on version) | |
| Method of reading the result of measurement | On monitor display | |
| INTERCONNECTING AND PROTECTING UNIT OF A TYPE LUZ-1.1 | ||
| Number of units per one line | 3 szt. | |
| Imput impedance from a line | 300 Ω | |
| Impedance from a fault finder | 75 Ω | |
| Insertion loss for PECT signals |  1,2 dB
(40 ÷ 450 kHz) |
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