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Voltage current mixed type power distribution automatic terminal

A power distribution automation, voltage and current technology, applied in the direction of electrical components, circuit devices, etc., can solve problems such as long time to restore power supply, frequent switching operations, and adverse effects on users

Inactive Publication Date: 2004-10-20
上海南瑞配网控制系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The voltage-type power distribution automation terminal in the prior art has disadvantages such as frequent switching actions, long power recovery time, adverse effects on users, small current grounding system, inability to find single-phase grounding faults, and difficulty in coordinating protection time for substation outgoing lines.

Method used

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  • Voltage current mixed type power distribution automatic terminal
  • Voltage current mixed type power distribution automatic terminal

Examples

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Embodiment Construction

[0010] Such as figure 1 As shown, a voltage-current hybrid power distribution automation terminal of the present invention is composed of a voltage / current input interface 2, a central processing unit (CPU) 1 and a memory, and is characterized in that the voltage / current input interface 2-way Described central processing unit (CPU) 1 provides the working information of external power grid, and described central processing unit (CPU) 1 reads the data memory 3 that links to each other with described central processing unit (CPU) data, to determine whether the current switch control is a voltage type or a current type, and the central processing unit (CPU) 1 detects whether a message from an external grid substation or a grid master station is received within a preset time range. Judging whether the system has a communication function, so as to determine whether to work in the voltage-type power distribution automation state or the current-type power distribution automation state...

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Abstract

The terminal is composed of voltage / current input interface, CPU, storage, controlled output interface, communication interface and communication input interface. Voltage / current input interface provides operation information of external power network for CPU. Reading from external information, CPU decides whether device works at voltage type power distribution automation state, current type power distribution automation state or artificial setting. The invention takes both advantages of both modes, providing realized automation function and is possible to update integrated power distribution automation system.

Description

Technical field: [0001] The invention relates to electric power equipment, in particular to a power distribution automation device, in particular to a voltage-current hybrid power distribution automation terminal. Background technique: [0002] There are mainly two types of distribution network automation terminals in the prior art: voltage-type distribution automation terminals and current-type distribution automation terminals. The voltage-type power distribution automation terminal generally adopts the voltage-type vacuum load switch of Japanese technology. The switch operation power supply is AC 220V. When the switch is closed at the fault point, the switch is locked and closed. The voltage-type power distribution automation terminal in the prior art has the following disadvantages: 1) resulting in frequent switching operations, reducing the life of the switch and increasing the maintenance workload; A power outage will adversely affect users, especially when the resid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
Inventor 徐石明丁孝华葛成余滕云邓晓刚
Owner 上海南瑞配网控制系统有限公司
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