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Line monitoring system

A monitoring system and line technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve problems such as real-time monitoring of difficult insulation conditions, damage to power supply continuity, etc., and achieve the effect of troubleshooting

Active Publication Date: 2016-11-09
WUXI TAIHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For a long time, limited by technical means, it is difficult to monitor the insulation state in real time, and once a fault occurs, the location (search) of the insulation fault point can only be realized by manually powering off hundreds of load branches one by one, which seriously damages the continuity of power supply. sex

Method used

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Embodiment Construction

[0035] In order to make the above objects, features and advantages of the present invention more obvious and comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0037] Second, "one embodiment" or "an embodiment" referred to herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to ...

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Abstract

The invention discloses a line monitoring system, including insulating strength monitoring units, a communication unit and an early warning unit. Each insulating strength monitoring unit comprises a line insulating monitoring device. The communication unit receives data packets of cable operation parameters sent by the plurality of insulating strength monitoring units, and each data packet encapsulates only ID information of a sensor node used for collecting electrical equipment operating parameters. A plurality of sensor nodes, a plurality of relay node and a base station form a wireless sensor network. The early warning unit performs safety determination of information sent by the communication unit and sends an alarm. A factory insulating monitoring system achieves continuous online monitoring of the factory power grid insulating state.

Description

technical field [0001] The invention belongs to the technical field of electric power monitoring system design, and in particular relates to a line monitoring system. Background technique [0002] The existing factory power grid generally adopts the neutral point ungrounded method to improve the safety of power supply. The characteristic of this system is that the lighting system and the power system are connected through a transformer, so there is only a magnetic flux connection between the two systems and no direct electrical connection. , so the mutual influence is small. When the insulation resistance of the factory grid meets the specification requirements and the ground capacitance of the power system is not large, even if a single-phase ground short-circuit fault occurs, the short-circuit current is still small, and the three-phase line voltage remains symmetrical. In this way, when a single phase-to-ground short circuit occurs, there is generally no need to trip in ...

Claims

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Application Information

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IPC IPC(8): G01R31/08G01R31/12
CPCG01R31/08G01R31/1272
Inventor 张乐孟建德
Owner WUXI TAIHU UNIV
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