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Mean Well: centinaia di prodotti a catalogo su Alimentatorishop!
Mean Well: centinaia di prodotti a catalogo su Alimentatorishop!
Posted in: Information
09/02/2024
173 views
Siamo lieti di aggiornarvi sulle novità riguardanti il marchio MEAN WELL, già leader globale nel settore degli...
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New Desktop Power Supplies Phihong AA90U: 90W and DoE Level VII
New Desktop Power Supplies Phihong AA90U: 90W and DoE Level VII
Posted in: News
07/31/2024
934 views
Phihong, a renowned provider of reliable and affordable power solutions, has introduced a new family of 90 watt...
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New programmable Cotek power supplies of 1500W: up to 400V output!
New programmable Cotek power supplies of 1500W: up to 400V output!
Posted in: News
06/18/2024
1205 views
In response to market demand and the growing need for high-voltage applications, Cotek has expanded its range of...
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LIFUD: new DALI DT6 LED drivers with NFC function - Compact and efficient!
LIFUD: new DALI DT6 LED drivers with NFC function - Compact and efficient!
Posted in: News
05/22/2024
1428 views
We are pleased to announce the arrival of the new dimmable LED drivers LF-BDD DALI-2 DT6 with NFC function, available...
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Adelsystem completes its range with the new DFX series for DIN rail installation ⚡
Adelsystem completes its range with the new DFX series for DIN rail installation ⚡
Posted in: News
04/10/2024
1983 views
We are pleased to introduce the new series of industrial power supplies Adelsystem DFX, designed to meet the most...
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Latest posts

Mean Well: centinaia di prodotti a catalogo su Alimentatorishop!
Mean Well: centinaia di prodotti a catalogo su Alimentatorishop!
Posted in: Information
09/02/2024
173 views

Siamo lieti di aggiornarvi sulle novità riguardanti il marchio MEAN WELL, già leader globale nel settore degli...

Leggi di più
New Desktop Power Supplies Phihong AA90U: 90W and DoE Level VII
New Desktop Power Supplies Phihong AA90U: 90W and DoE Level VII
Posted in: News
07/31/2024
934 views

Phihong, a renowned provider of reliable and affordable power solutions, has introduced a new family of 90 watt...

Leggi di più
New programmable Cotek power supplies of 1500W: up to 400V output!
New programmable Cotek power supplies of 1500W: up to 400V output!
Posted in: News
06/18/2024
1205 views

In response to market demand and the growing need for high-voltage applications, Cotek has expanded its range of...

Leggi di più
LIFUD: new DALI DT6 LED drivers with NFC function - Compact and efficient!
LIFUD: new DALI DT6 LED drivers with NFC function - Compact and efficient!
Posted in: News
05/22/2024
1428 views

We are pleased to announce the arrival of the new dimmable LED drivers LF-BDD DALI-2 DT6 with NFC function, available...

Leggi di più
Adelsystem completes its range with the new DFX series for DIN rail installation ⚡
Adelsystem completes its range with the new DFX series for DIN rail installation ⚡
Posted in: News
04/10/2024
1983 views

We are pleased to introduce the new series of industrial power supplies Adelsystem DFX, designed to meet the most...

Leggi di più
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Protection against lightning surges propagated on the input power supply

  1. THE NEW PROTECTION SYSTEM
  2. APPLICATIONS

The purpose of this introduction is to present the results of a new protection system against lightning surges propagated on the input power supply.

Atmospheric lightning strikes create transient overvoltages on power lines with very steep rise times and slow decay times. Operations on electrical panels can generate oscillations on the power line similar to a lightning strike. The effects of these overvoltages, at best, lead to premature aging of powered devices due to excessive electrical stress. In the worst cases, it can lead to local destruction of components and/or electrical and electronic devices connected to the network.

The new device blocks indirect lightning strikes characterized by an 8/20us test impulse, which represent the majority of cases to which electrical and electronic equipment connected to the network are subjected.

8/20 Test Impulse

CURRENT STATE

Stato_Attuale1.jpg

Devices commonly used on the power line as secondary protection use ZnO-based varistors with non-linear resistance depending on the current passing through them. While capable of absorbing significant energy, they are not able to fully absorb the energy of the lightning strike, and the residual voltage that propagates towards the load can be dangerous for connected devices, depending on the applied impulse.

One significant parameter

 
Posted in: Guides