Unlock instant, AI-driven research and patent intelligence for your innovation.

Low-voltage power distribution cabinet pre-alarm device

A pre-alarm and power distribution cabinet technology, applied in alarms, fire alarms, instruments, etc., can solve the problems of inability to pre-alarm fire hazards, etc., to prevent disasters and expand the application range

Inactive Publication Date: 2016-03-30
NINGBO DWOO ELECTRIC POWER TECH
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the prior art proposes an online monitoring and alarm device for electrical fire hazards, but this monitoring and alarm device can only give an alarm when or after a fire occurs, but cannot pre-alarm the fire hazard
[0006] In the prior art, there is no mention of the technology and literature for realizing the pre-alarm for flammable and explosive gases. The existing smoke alarm device is only installed in the facility, which can only alarm when the smoke reaches a certain concentration.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-voltage power distribution cabinet pre-alarm device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0023] Such as figure 1 As shown, the device is powered by a 220-volt AC power supply, and the power supply can also be adjusted as required. This technology belongs to the prior art solution, and the adjustment of the power supply will not affect the technical solution of the present invention. This device converts AC power to DC power through the power supply unit. All units in this device require DC power. The voltage of each unit can be the same or different, but the DC voltage required by each unit should be lower than 36 volts. Ma...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a pre-alarming device for a low-voltage distribution cabinet. The pre-alarming device mainly comprises a signal detecting unit, a central processing unit, a display unit, a pre-alarming unit, a power supply unit and a communication unit. With the adoption of the pre-alarming device provided by the invention, an alarm for fire caused by an electric arc can be triggered and an alarm in advance for inflammable and explosive gas can be provided as well, and the scope of application of the device is expanded; after being started, the control unit of the device can freeze the operation of all electric equipment of the distribution cabinet, and has the capacity of preventing the disaster from being caused under the condition that a worker knows nothing or operates in fault.

Description

technical field [0001] The invention belongs to the field of electric power equipment, in particular to a pre-alarm device capable of detecting electrical fires that may be caused by electric arcs or explosive gases in the environment. Background technique [0002] At present, low-voltage power distribution cabinets are equipped with certain protection functions, but basically they are protection functions against overload, short circuit, leakage, etc., and there is no pre-alarm function for electrical fires and flammable and explosive gases in the environment. [0003] Through the analysis of the electrical fires that have occurred, it will be found that the fires originate from the electrical rarely, and basically originate from the distribution cabinet. This is mainly because most of the fires are first caused by various electrical reasons such as overload, short circuit or leakage. This phenomenon is first reflected on the power distribution cabinet. Cut off the power s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G08B17/00G08B21/16
Inventor 胡校邱红光
Owner NINGBO DWOO ELECTRIC POWER TECH