Novel surge protection device

Abstract

The invention relates to a novel surge protection device and belongs to the field of lightning protection. The novel surge protection device is mainly composed of a surge suppression device, a light measuring unit, a signal conversion and transmission unit, a control unit, a short circuit protection module, a pedestal and a shell; the light measuring unit is opposite to the surge suppression device, the light measuring unit is connected with the signal conversion and transmission unit, the control unit is connected with the signal conversion and transmission unit, and the short circuit protection module is connected with the control unit. The novel surge protection device is capable of detecting lightning surge which flows through the surge suppression device and the degradation or damage situation of the surge suppression device in real time and timely controlling the short circuit protection module to separate the surge suppression device from circuit so as to facilitate changing and maintaining in advance; because the connecting circuit length and inductive reactance are reduced, the whole protective performance is improved; the novel surge protection device can be used for protecting power supply circuits, signal circuits, control circuits and the like circuits.

Description

technical field [0001] The invention relates to a novel surge protection device, which belongs to the technical field of surge protection for electronic and electrical equipment. Background technique [0002] Line surge protection caused by various reasons such as lightning is an important cause of aging or damage to electronic and electrical equipment. It is an important measure to install surge protectors on metal lines such as power lines, signal lines, and control lines of electronic One of the protective measures. In this technical field, the current problem is that while the surge protector protects the equipment, its own devices will gradually deteriorate or be directly damaged under the impact of excessive surges, and the switching devices will generate freewheeling, which are serious Affect the normal operation of the equipment or system, especially the short circuit caused by the damage of the device is more serious. At this time, it should be disconnected from t...

AI Technical Summary

Problems solved by technology

In this technical field, the current problem is that while the surge protector protects the equipment, its own devices will gradually deteriorate or be directly damaged under the impact of excessive surges, and the switching devices will generate freewheeling, which are serious Affect the normal operation of the equipment or system, especially the short circuit caused by the damage of the device is more serious. At this time, it should be disconnected from the line in time, otherwise there will be burning, switch tripping, power supply interruption, signal transmission failure and other phenomena.

This method has the following problems: connecting circuit breakers or fuses in series on the surge protector line takes up a lot of space, resulting in insufficient space; there are many coiled connecting lines, and the inductive reactance of the line increases, resulting in a slow response time of the surge protector. The residual voltage at the equipment end increases, which reduces the overall surge protection effect

[0008] 1. The deterioration or damage of the surge protection device may not generate enough energy to make the tripping device operate. At this time, the alarm unit cannot output the alarm.

[0009] 2. The alarm signal may be output only when the device is damaged, which cannot be predicted in advance, and the state during the damage process is unknown

[0010] 3. Not suitable for signal surge protectors

Its defect is: the measurement circuit itself is electrically connected to the surge protector circuit, which causes the measurement circuit to be destroyed by the lightning surge in advance

[0012] 4. Circuit breakers or fuses are connected in series on the surge protector line, which takes up a lot of space, and the connecting lines are numerous and coiled. Decreased protection

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