Knowledge

Working principle of surge protector

The type and structure of a surge protector are different for different purposes, but it should at least contain a non-linear voltage limiting element.

Basic characteristics of surge protectors

The protection flow is large, the residual pressure is extremely low, and the response time is fast;

Development history of surge protectors

The most primitive claw-shaped surge protector gap appeared in the late 19th century and was used for overhead transmission lines to prevent lightning strikes from damaging equipment insulation and ca

What are the professional terms for surge protectors

Lightning that directly strikes actual objects such as buildings, the ground or lightning protection devices.

Surge protector terminology

Metal objects and metal structures that are used to directly receive or bear lightning strikes, such as lightning rods, lightning belts (wires), lightning nets, etc.

Surge protector

Surge protector, also called lightning protector, is an electronic device that provides safety protection for various electronic equipment, instruments, and communication lines.

Varistor model

Commonly used varistor models: 5D, 7D, 10D, 14D, 20D, 32D and other models.

What are the applications of varistors

Refers to the maximum average impulse power that can be applied to the varistor under the specified ambient temperature.

Application of varistor

The maximum impact energy that can be applied to the varistor under the condition that the varistor voltage does not change more than ±10% and the impulse current waveform is 10,1000μs or 2ms.

Varistor applications

Refers to the voltage value at both ends of the varistor under the specified temperature and direct current (usually 1mA or 0.1mA). Recorded as V1mA or V0.1mAo.

Application principle of zinc oxide varistor

The varistor is used in parallel with the protected electrical equipment or components.

Varistor component types

Zinc Oxide, ZnO
Silicon Carbide, Silicon Carbide, SiC
Titanium Oxide, TiO₂