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Fault recording method and system of power distribution line

A power distribution line and fault recording technology, which is applied in the field of electric power equipment, can solve the problems that the severity of the fault circuit cannot be found, the specific cause of the trip cannot be accurately identified, and the distribution circuit and maintenance personnel are injured, so as to promote upgrading and transformation , reduce potential safety hazards, and solve the effect of line failure problems

Pending Publication Date: 2019-11-05
天津市中力神盾电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the low-voltage power supplies power to the electrical equipment through the low-voltage power distribution equipment, if the power distribution circuit is overloaded, long / short time-delayed or short-circuited, etc., the circuit breaker and other protective devices configured for the low-voltage power distribution equipment will trip, but currently cannot Accurately identify the specific cause of tripping, so the severity of the faulty circuit cannot be found, and it is very likely to cause damage to the distribution circuit and maintenance personnel after closing

Method used

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  • Fault recording method and system of power distribution line

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Embodiment 1

[0027] Such as figure 1 As shown, Embodiment 1 of the present invention provides a distribution line fault wave recording method, which can be used as figure 2 The distribution line fault recording system or the terminal equipment including the distribution line fault recording system execute the distribution line fault recording method.

[0028] Embodiment 1 of the present invention provides a fault recording method for distribution lines, including the following steps:

[0029] Step 101, according to the distribution line information and its fault type, set the corresponding current and / or voltage setting value and action setting time in the distribution line; set the record according to the current and / or voltage value in the distribution line A waveform of current and / or voltage in said distribution line over a period of time.

[0030] There are many types of faults in distribution lines, and the common faults are overload long / short delay, short-circuit instantaneous i...

Embodiment 2

[0044] refer to figure 2 , which shows a structural block diagram of the distribution line fault recording system provided in Embodiment 2 of the present invention, through the distribution line fault recording system in this embodiment, the following figure 1 The distribution line fault recording method shown. Specifically, the distribution line fault recording system may include the following units:

[0045] Configuration unit 201, according to the distribution line information and its fault type, set the corresponding current and / or voltage setting value and action setting time in the distribution line; according to the current and / or voltage value in the distribution line, set recording waveforms of current and / or voltage in said distribution line over a period of time;

[0046] The monitoring unit 202 monitors the current and / or voltage value in the distribution line to monitor whether the current and / or voltage value in the distribution line exceeds the current and / or...

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Abstract

The invention provides a fault recording method and system of a power distribution line. The method comprises that corresponding current and / or voltage setting values and action setting time in the power distribution line are set according to power distribution line information and a fault type thereof; a waveform for recording the current and / or voltage of the power distribution line in a periodis set according to current and / or voltage values; the current and / or voltage values in the power distribution line are monitored to monitor that whether the current and / or voltage values exceed the current and / or voltage setting values; timing is carried out the moment that the current and / or voltage values exceed the current and / or voltage setting values, and it is determined that a fault occursin the power distribution line when accumulated time is greater than the motion setting time; and when it is determined that the fault occurs in the power distribution line, the recorded current and / or voltage waveform in the power distribution line is stored.

Description

technical field [0001] The invention belongs to the technical field of electric power equipment, and in particular relates to a fault recording method and system for power distribution lines. Background technique [0002] When the low-voltage power supplies power to the electrical equipment through the low-voltage power distribution equipment, if the power distribution circuit is overloaded, long / short time-delayed or short-circuited, etc., the circuit breaker and other protective devices configured for the low-voltage power distribution equipment will trip, but currently cannot Accurately distinguish the specific cause of the trip, so the severity of the fault circuit cannot be found, and it is very likely to cause damage to the power distribution circuit and maintenance personnel after closing. Therefore, in view of the above problems, the present invention discloses a distribution line fault recording method and system to solve the above problems. Contents of the invent...

Claims

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Application Information

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IPC IPC(8): G01R31/08
CPCG01R31/085
Inventor 孙巍巍
Owner 天津市中力神盾电子科技有限公司
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