Intelligent sectionalizer

A technology of sectionalizer and intelligent circuit breaker, which is applied in the field of electric power and can solve problems such as low work efficiency

Inactive Publication Date: 2014-12-24
STATE GRID ZHEJIANG CIXI POWER SUPPLY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, this application provides an intelligent sectionalizer, which is used to solve the problem of low work efficiency caused by the need for maintenance personnel to check point by point when the power distribution system fails

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0034] figure 1 It is a schematic diagram of an intelligent segmenter provided by the embodiment of this application.

[0035] Such as figure 1 As shown, the intelligent sectionalizer provided in this embodiment is applied in a power distribution system, including an intelligent circuit breaker 10 and a communication host 20 .

[0036] The intelligent circuit breaker 10 is arranged at the subdivision point 100 of the main line (not shown) and the branch line (not shown) of the power distribution system, and is used to connect the branch line and the main line. When it falls, it will cut off the connection between the branch line and the main line. Electrically connected, at this moment repairing or maintaining the branch line will not affect the power supply of the main line. When the branch line has power supply conditions, the intelligent circuit breaker 10 can be pushed on by the insulating operating lever to supply power to the branch line.

[0037] It can be seen from t...

Embodiment 2

[0042] figure 2 A structural diagram of an intelligent segmenter provided by another embodiment of the present application.

[0043] Such as figure 2 As shown, the smart sectionalizer provided in this embodiment also includes a smart circuit breaker 10 and a communication host 20 .

[0044] The smart circuit breaker 10 is provided with a fault signal acquiring unit 11 and a fault signal sending unit 12 .

[0045] The control system (not shown) of the intelligent circuit breaker 10 judges the fault type by detecting the current flowing therethrough, and when it is determined that the branch line has a permanent fault, the control system will output a fault signal. The signal input end (not shown) of the fault signal acquisition unit 11 is connected with the signal output end of the control system of the intelligent circuit breaker 10 for receiving the fault signal output by the control system.

[0046] The signal input end (not shown) of fault signal sending unit 12 is con...

Embodiment 3

[0052] image 3 A structural diagram of an intelligent segmenter provided by another embodiment of the present application.

[0053] Such as image 3 As shown, the intelligent sectionalizer provided in this embodiment includes a communication host 20 and three intelligent circuit breakers 10 with the same structure and purpose, and each intelligent circuit breaker 10 is applied to one phase of a three-phase alternating current to form a three-phase segment system.

[0054] In the actual operation of the power distribution system, sometimes a single-phase fault occurs. In order not to cause damage to the electrical equipment due to the lack of phase operation of the power grid, the remaining two phases must also be cut off when a single-phase power failure occurs.

[0055] The communication host 20 in this embodiment is based on the previous embodiment with an additional remote control unit 24 , and the smart circuit breaker 10 is provided with a cut-off control unit 13 . Wh...

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PUM

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Abstract

The invention provides an intelligent sectionalizer comprising an intelligent circuit breaker and a communication server. The intelligent circuit breaker is used for connecting principal lines with branch lines of a power distribution system and automatically falls and outputs fault signals when judging that the branch lines have permanent faults incapable of being recovered automatically, the communication server is arranged at the same position of the intelligent circuit breaker and used for transmitting address information of the intelligent circuit breaker to maintainers when the intelligent circuit breaker outputs the fault signals, and the maintainers are capable of quickly locating fault points according to the address information without troubleshooting point by point. The maintainers quickly locate the fault points according to the address information, thus, the problem of low work efficiency due to the fact that the maintainers need to troubleshoot point by point when the power distribution system is in a failure is solved.

Description

technical field [0001] The present application relates to the field of electric power technology, and more specifically, relates to an intelligent sectionalizer. Background technique [0002] At present, intelligent circuit breakers are widely used in power distribution systems to distinguish whether a fault in the power distribution system is a temporary fault or a permanent fault. In the general power distribution system, about 90% of the faults are temporary faults caused by tree branches or birds touching the wires, or instantaneous current caused by lightning, which can be automatically restored without external intervention or maintenance, and the automatic recloser in the substation again The fault may have disappeared after power on. However, some faults are more serious. At this time, it is necessary to cut off the power of the permanent fault line for maintenance. At this time, the intelligent circuit breaker will automatically drop to completely separate the faul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
Inventor 吴海良胡伟锋方健裘麒洋高朋
Owner STATE GRID ZHEJIANG CIXI POWER SUPPLY
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