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Single-phase recloser and three-phase linkage device and method

A single-phase coincidence and switching unit technology, which is applied in the direction of automatic disconnection emergency protection devices, circuit devices, emergency protection devices, etc., can solve the problems of unusable, no visible fracture, etc., and achieve easy maintenance, low manufacturing cost, The effect of simple structure

Active Publication Date: 2020-02-28
南京海兴电网技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For some lines that cannot provide AC power, it cannot be used; and this structure has no visible fracture, and an additional isolating switch is required to ensure the safety of maintenance operations

Method used

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  • Single-phase recloser and three-phase linkage device and method
  • Single-phase recloser and three-phase linkage device and method
  • Single-phase recloser and three-phase linkage device and method

Examples

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Embodiment Construction

[0029] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Such as figure 1 As shown, the single-phase recloser of the present invention includes an incoming line terminal 1, a current transformer 2, a power-taking voltage transformer 3, a control box 4, a conductive sheet 5, a compression spring 6, a conductive contact 7, and a vacuum extinguisher Arc chamber 8, insulating rod 9, contact spring 10, permanent magnet mechanism 11, conductive terminal 12, rotary pressure plate 13, rotary hook 14, outgoing terminal 15, measuring voltage sensor 16, conductive rod 17, soft connection 18, conductive plate 19 .

[0031] The high-voltage line is connected to the single-phase recloser through the incoming line terminal 1, and the incoming line terminal 1 is connected to the conductive rod 17. The current transformer 2 is installed on the incoming line side and passes through the conduc...

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PUM

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Abstract

The invention discloses a single-phase recloser and a three-phase linkage device and method. The single-phase recloser comprises a current sensor, an electricity taking voltage sensor, a measurement voltage sensor and a switch unit, wherein a rotary pin shaft is arranged at one end of the switch unit, the switch unit can rotate in the axial direction of the pin shaft, so a conductive contact and an isolation static contact seat are in a connected or disconnected state, the incoming line end electricity taking voltage sensor and a supporting insulator are cast into a whole, the outgoing line end measurement voltage sensor and the supporting insulator are cast into a whole, and the power supply continuity is not influenced by an on-off state of switch equipment. The three-phase linkage device is integrated with an analysis module. The three-phase linkage method comprises steps that the three single-phase reclosers are connected into a three-phase line in series, a collection unit receives signals, the analysis module analyzes the signals, if that a fault needs action making is determined, an instruction is sent to each single-phase recloser through the communication module integratedwith the analysis module, and each single-phase recloser acts according to a command after receiving the command.

Description

technical field [0001] The invention belongs to the field of power system fault detection and isolation, and in particular relates to a single-phase recloser and a three-phase linkage device and method. Background technique [0002] In the distribution network system, the single-phase recloser, as a device that can quickly and repeatedly switch and close short-circuit faults in a short period of time, is widely used in distribution network branch lines to realize line protection functions and provide power supply reliability. . At present, there are two mainstream structural forms of single-phase reclosers in the world: drop-type reclosers and pillar-type reclosers. [0003] S&C's TripSaver II is the most typical drop-out single-phase recloser. When a short-circuit fault occurs, the drop-out recloser will reclose according to the preset action sequence. If it is a transient fault, the product can remove the fault by reclosing. And if it is a non-transient fault, the reclo...

Claims

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Application Information

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IPC IPC(8): H01H71/10H02H3/06H02H3/08H02H7/26
CPCH01H71/1009H02H3/066H02H3/083H02H7/26
Inventor 齐广化李小青郝占林王世松刘畅秦金刚熊文平方斌斌李锋
Owner 南京海兴电网技术有限公司
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