| Characteristics Principal |
| voltages Ur (kV) |
30-120 |
| Rated discharge current (kA) |
10 |
| Class of discharge of transmission lines (lEC 60O99-4) |
2 |
| High intensity impulse withstand current, 4 / 10us (kA) |
100 |
| 10 long lasting withstand current, 2000us (A) |
550 |
| Energy absorbing capacity according to operating cycle test (injected into two long lasting class 2 discharges) (KJ / kV of Uc) |
5.5 |
| Short - circuit current class (fault) (kArms - s) |
20-0.2 |
| Tensile / compressive strength (N ) |
1150 |
| Resistance to bending (Nm) |
350 |
| Torsion resistance (Nm) |
70 |
| Temporary overvoltages, with prior application of energy (as in the operating cycle test) |
-132
-126
-119 |
| Guaranteed Values |
| Model |
Nominal voltages peur (kV) |
Operating voltage MCOV Uc (kV) |
Residual Voltage for Rated Discharge Current 8 / 20us (kV) |
Residual Voltage for current impulse
Maneuver 5OOA (kV)
|
Residual Voltage for Inrush Impulse, 1Ó kA (kV) |
Housing
|
Weight (Kg) |
| Arc Distance (mm) |
Flow distance (mm) |
| PBPE36/10/2-LT |
36 |
29,0 |
90,0 |
73,0 |
107,0 |
358 |
725 |
5 |
| PBPE72/10/2-LT |
72 |
58,0 |
180,0 |
143,0 |
210,0 |
716 |
1450 |
10 |
| PBPE120/10/2-LT |
120 |
98,0 |
304,0 |
246,0 |
361,0 |
1276 |
2520 |
18 |
A constant evolution of electrical systems requires electricity utilities to have an increasingly stable and reliable energy supply. Power transmission lines are vital elements in this reliability, and are subject to temporary shutdowns caused by atmospheric discharges, which cause flashover in the isolators that carry the circuit breaker.
to disconnect the line.
Lightning rods for Balestro transmission lines have been designed for excellent performance in the protection against overvoltages of transmission lines, to be applied directly suspended to the line, in the protection of the suspension insulators against flashover caused by atmospheric discharges and for the reduction of the level overvoltage of the LT conductors,
both of atmospheric discharge and of maneuvers.
PBPE-LT lightning arresters offer optimum protection characteristics, high mechanical resistance and high weather resistance, with its silicone rubber housing and active part sealing system that prevents moisture penetration, even under extreme conditions. pollution and
intemperate
Benefits
Lower levels of residual stress, optimizing the coordination of insulation; o High energy absorption capacity, suitable for critical applications; . Stability in its electrical characteristics even in severe request conditions; o High resistance to weather, pollution, air pollution, etc., the slicone rubber coating already applied in the application of lightning rods has demonstrated its excellent performance under these conditions both in the field and in the field;
. Non-fragmentary design, the construction of the active part without internal air spaces avoids the explosion of the enclosure under failure conditions, and the damages that this condition could cause, particularly suitable for the suspended installation required in LTs, offering no risks under them;
o High mechanical resistance;
Low weight, due to the design with polymeric shell, allows the installation directly in the existing lines, without needing modifications in the structures of the LTs; o Automatic switch-off appropriately sized for the applications imposed on the application in class 2 transmission lines, to remove from the system 0 surge arresters in case
of its failure, guaranteeing continuity of line service;
Increase the reliability of the transmission lines with the reduction of the disconnections and consequently increase the life of the contacts of the circuit breakers of the substation, which will operate less frequently.
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