Linear matching device
The linear matching device (ULS) is designed to connect the equipment of high-frequency channels of relay protection, emergency automation, communication and data transmission to power lines with a voltage of 35-750 kV, as well as lightning protection cables according to the “phase-to-ground”, “phase-to-phase”, “ two phases extreme-earth", "cable-earth" and "split cable-earth".
TU U 31.2-32431587-002:2010
Device description
Linear matching devices, depending on the modification, cover the frequency range from 24 to 1000 kHz and are designed for an RF signal power of at least 200 W. These devices have a fixed grid of frequency ranges, however, at the request of the customer, any physically realizable combinations of coupling capacitor capacitance, frequency range and input impedance can be implemented.
Versions of linear matching devices.
|
Connection capacitance Csv, pF |
Frequency band dF, kHz |
Line class, kV |
Line characteristic resistance R, Ohm |
|
1100 |
76-108 |
220 |
450 |
|
92-144 |
|||
|
132-292 |
|||
|
240-1000 |
|||
|
1470 |
72-112 |
150 |
450 |
|
100-200 |
|||
|
178-1000 |
|||
|
2133 |
68-110 |
330 |
330 |
|
92-192 |
|||
|
160-1000 |
|||
|
2200 |
52-84 |
110 |
450 |
|
72-184 |
|||
|
116-1000 |
|||
|
2800 |
50-68 |
750 |
280 |
|
60-92 |
|||
|
80-164 |
|||
|
148-1000 |
|||
|
3000 |
48-68 |
750 |
280 |
|
58-92 |
|||
|
76-164 |
|||
|
125-1000* |
|||
|
3200 |
48-100 |
220 |
450 |
|
76-1000* |
|||
|
3500 |
32-40 |
750 |
280 |
|
40-56 |
|||
|
50-90 |
|||
|
70-150 |
|||
|
142-1000 |
|||
|
48-80 |
500 |
310 |
|
|
64-148 |
|||
|
120-1000 |
|||
|
4000 |
40-60 |
400 |
300 |
|
56-120 |
|||
|
98-1000 |
|||
|
4100 |
83-1000 |
330 |
330 |
|
4400 |
36-84 |
35 |
450 |
|
56-1000 |
|||
|
4650 |
36-60 |
500 |
310 |
|
48-104 |
|||
|
75-1000* |
|||
|
6400 |
28-88 |
110 |
450 |
|
43-1000* |
|||
|
51-1000 |
|||
|
7000 |
36-120 |
330 |
330 |
|
47-1000 |
|||
|
7500 |
36-1000 |
грозотрос |
550 |
|
9000 |
28-88 |
330 |
330 |
|
40-1000 |
|||
|
14000 |
21-1000 |
150 |
450 |
|
17500 |
24-1000 |
35 |
450 |
|
18000 |
24-1000 |
150 |
450 |
*-special execution.
When ordering a linear matching device, it is necessary to specify the operating frequency range, line resistance and capacitance of the coupling capacitor with which it will work.
Technical characteristics
|
Characteristic |
Meaning |
|
Frequency range |
24...1000 kHz |
|
Operating attenuation in the passband, no more |
1,6 дБ |
|
Attenuation of inconsistency of the filter resistance on the line side, not less than |
12 дБ |
|
Overall dimensions |
414х284х187 mm |
|
Weight, no more |
12 kG |
The body of the ULS is made of silumin alloy, which has great strength and wear resistance. The case consists of a box and a lid held together with hinges and captive screws. There is a rubber gasket between the lid and the box.
The linear matching device is designed to operate outdoors at an altitude of not more than 1000 m above sea level at a temperature of -50 ° C to +45 ° C (223 - 318 K) and a relative humidity of 98% at a temperature of +25 ° C (298 K) .
