TU U 31.2-32431587-002:2010
Device description
The ULS-P linear matching device, together with coupling capacitors or capacitive voltage transformers, is a circuit of a transformer band-pass filter (PF) or a high-pass filter (HPF), which ensures matching of the wave impedance of high-frequency subscriber equipment and an RF communication channel formed by high-voltage wires, cables, ground wires in the nominal frequency band.
"ULS-P" is designed to work on power lines with voltage from 24 to 750 kV and lightning protection cables.
The main feature of "ULS-P" is the possibility of its restructuring at the facility when changing the connection capacity and / or operating frequency range.
"ULS-P" is capable of solving problems that are currently being solved by connection filters "LMU5000" (Areva T&D, France), BLM (TesmecS.p.A, Italy), UAPA-1 (ZIV, Spain), MCD80 (ABB Ltd., Germany), SCA/SGA (SeltaS.p.A., Italy) and others for a similar purpose. It is manufactured on a modern technical basis, taking into account development trends and the needs of the energy industry. Transformers are made on modern high-quality ferrite cores.
ULS-P are designed for RF signal power of at least 200 W.
Connection filter options
|
Characteristic |
Value |
|
Connection diagram |
"phase - earth", "phase - phase", "two phases - earth" |
|
Frequency range |
24 – 1000 kHz with configurable subbands |
|
Attachment capacity |
2 - 14 nF (2000 - 14000 pF) |
|
Rated resistance on the side of the overhead line |
180 - 450 Ohm |
|
Nominal impedance on RF side |
75 Ohm |
|
Total passband attenuation |
<2 dB |
|
Reflection attenuation in the passband |
> 12 dB |
|
Rated power (PEP) |
≤200W |
|
Distortion and intermodulation |
80 dB below the level corresponding to PEP (IEC 481, cls. 9.6) |
|
Configurations |
3rd order high pass filter; 2nd order bandpass filter |
|
Environment characteristics |
-40°С ... +70°С at air humidity not more than 95% (IEC 870-2-2, class C3) |
|
Overall dimensions |
430x400x190 mm |
|
Mass, no more than |
10 kg |
