Method and system for monitoring and positioning discharging fault of indoor power utilization circuit
A fault monitoring and electrical circuit technology, applied in the fault location, detecting faults by conductor type, and measuring electricity, etc., can solve the problems of inaccurate location of fault points and low discrimination accuracy, so as to reduce the probability of fire and prevent further The effect of enlargement and high detection accuracy
Pending Publication Date: 2019-12-31
孙正武
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The purpose of the present invention is to provide a method and system for monitoring and locating discharge faults of indoor power lines, so as to solve the problems in the prior art that the identification accuracy of discharge faults in indoor power lines is not high and the location of fault points is not accurate question
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0021] When a discharge fault occurs on an indoor power line (voltage 220v or 380v), a discharge flashover will occur at the fault point, and the discharge flashover will emit electromagnetic waves with a frequency range of 0.03GHz~3GHz. According to this characteristic of the discharge fault point, the interior of the building is divided into several partitions, and a dedicated electromagnetic wave sensor is installed in each partition. The electromagnetic wave sensor collects the electromagnetic wave signal of the set frequency in the partition, and records the duration of the electromagnetic wave signal. And the number of times the electromagnetic wave signal is received within the set time, ...
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
Login to View More Abstract
The invention discloses a method and system for monitoring and positioning a discharging fault of an indoor power utilization circuit in the technical field of building power utilization safety, and aims to solve the technical problems that of low distinguishing accuracy of the discharging fault of the indoor power utilization circuit and inaccurate positioning of a fault point in the prior art. An electromagnetic sensor is used for acquiring an electromagnetic wave signal with a setting frequency in a setting region and judging whether the discharging fault is occurred according to preset criterion, the electromagnetic wave sensor is used for giving out a warning signal and sending real-time warning information to a management system when the discharging fault is distinguished to be occurred, and the management system is used for determining a fault place according to a received address code of the electromagnetic wave sensor. Whether the discharging fault occurs or not is judged according to the preset criterion by the characteristics of special frequency electromagnetic wave when the discharging fault occurs, meanwhile, the fault places is rapidly positioned according to the address code of the electromagnetic sensor, the discharging fault detection accuracy is high, and the fault place positioning is accurate.
Description
technical field [0001] The invention belongs to the technical field of building electricity safety, and in particular relates to a method and system for monitoring and locating discharge faults of indoor electricity lines. Background technique [0002] Electrical fires have become the most frequent and most costly type of fire among all fires. The main causes of electrical fires are short circuit, insulation aging, ground fault, poor contact and so on. In essence, all electrical fires are caused by short circuits, and 90% of short circuit fires are short circuits caused by gradual faults. One of the main early features of gradual change is intermittent discharges between live and neutral wires, at consumer line connections, and between wires and consumers. The current monitoring method is to capture the electrical quantity characteristics to distinguish the discharge fault, which is not accurate and cannot accurately locate the specific discharge area (such as a certain ro...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12G01R31/08
CPCG01R31/085G01R31/1272
Inventor 孙正武
Owner 孙正武