US 2021/0344192 A1 · SURGE PROTECTION DEVICE AND SYSTEM

Abstract

A surge protection device includes: an impedance device, a voltage-limiting surge protector, and a switching surge protector. The impedance device is connected in parallel with the voltage-limiting surge protector. A parallel branch of the impedance device and the voltage-limiting surge protector is connected in series with the switching surge protector to form a discharge channel of a lightning impulse current. A series branch of the impedance device and the switching surge protector forms a discharge channel of a follow current. The surge protection device and system of the present invention can effectively improve the capability to withstand multiple pulses and prevent failure of arc-quenching.

Claims16

Dependent claims

A surge protection device, comprising:

an impedance device, a voltage-limiting surge protector, and a switching surge protector;
wherein
the impedance device is connected in parallel with the voltage-limiting surge protector;
a parallel branch of the impedance device and the voltage-limiting surge protector is connected in series with the switching surge protector to form a discharge channel of a lightning impulse current;
and
a series branch of the impedance device and the switching surge protector forms a discharge channel of a follow current.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/270,680Filed 19 Sep 2019

Priority

CN 201811433169.028 Nov 2018

Published

4 Nov 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

H02H 9/041
Responsive to excess voltage: using a short-circuiting device
H02H 9/044
Responsive to excess voltage: physical layout, materials not provided for elsewhere
H02H 9/02
Emergency protective circuit arrangements for limiting excess current or voltage without disconnection: responsive to excess current
H02H 9/042
Responsive to excess voltage: comprising means to limit the absorbed power or indicate damaged over-voltage protection device

Surge protection device and system

Life of this patent

Surge protection device and system

Life of this patent

Abstract

Claims16