LLPD d10z up to 10 kV
LLPD d10z — a cost-effective solution designed to protect overhead lines from overvoltages caused by direct lightning strikes.
- Protection against:
Induced overvoltage,
Back Flashover
- Highest voltage for equipment, kV12
- Maximum prospective fault current, kA5.0
- Lightning discharge capability, C2.8
- Installation 1, 2 or 3 pcs per pole
The d10z has been designed to ensure the most effective protection from direct and indirect strokes. This device is able to perform as highly effective lightning protection system, providing secure power network operation in 80% of such issues.
This device will definitely be of great use and will ensure the highest possible reliability, since its performance has been validated by a series of tests at CESI (Milano) according to the test procedure based on the IEC standard.
Electrical line parameters
Lightning parameters
General Parameters
* According to IEC 60038, ** According to IEC 60071-1, *** According to IEC 60099-8, **** According to ISO 4892-2, method A, IEC 62217
Highest voltage for equipment*, kV | 12 |
Maximum prospective fault current, kA | 5 |
External air gap, mm | 50-70 |
50% flashover voltage (70 mm air gap), kV | <115 |
Power frequency withstand voltage**, kV (wet/dry) | 28/38 |
Lightning parameters
Lightning discharge capability (200 μs)***, C | 2.8 |
High current impulse (4/10 μs), kA | 65 |
Maximum quenching lightning current, kA | 20 (8/50µs) |
Minimum withstand amount of operations | 10 |
General Parameters
Additional power losses on the line, % | 0 |
Average expected lifespan, years | 30 |
UV resistance****, h | 1000 |
Weight, kg | 1.1 |
Maintenance | 1 visual verification/ year |
* According to IEC 60038, ** According to IEC 60071-1, *** According to IEC 60099-8, **** According to ISO 4892-2, method A, IEC 62217
The i20z’s works due to the EasyQuench technology.
This innovative operating principle ensures a high ability to discharge excessive energy of an overvoltage in the surrounding atmosphere.
The induced overvoltage will create an electrical power arc between the terminal electrode of an LLPD and the conductor clamp on a line. At first, the arc will be divided by a series of discharge chambers into a series of small arcs, which afterward are quickly quenched when the oscillating current of the grid crosses zero.
This innovative operating principle ensures a high ability to discharge excessive energy of an overvoltage in the surrounding atmosphere.
The induced overvoltage will create an electrical power arc between the terminal electrode of an LLPD and the conductor clamp on a line. At first, the arc will be divided by a series of discharge chambers into a series of small arcs, which afterward are quickly quenched when the oscillating current of the grid crosses zero.
Examples of installation methods