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Intelligent substation power backup self-switching load shedding test device

A technology of intelligent substation and test device, which is applied in the field of substation to achieve the effect of portability

Active Publication Date: 2015-08-05
SHENZHEN POWER SUPPLY BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Based on this, it is necessary to provide a load shedding test device for intelligent substation power backup automatic switching in order to solve the problem that the above load shedding test brings risks to the power grid.

Method used

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  • Intelligent substation power backup self-switching load shedding test device
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  • Intelligent substation power backup self-switching load shedding test device

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Embodiment Construction

[0022] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] see figure 2 As shown, a smart substation power supply self-switching load shedding test device includes: the tested device and the load calculation part, and also includes: the analog input and output and conversion part, load shedding execution and command conversion part; the simulation The volume input and output and conversion part are sequentially connected with the device under test and the load calculation part, load shedding execution and command conversion part;

[0024] The analog input and output and conversion part includes: a total command executive unit, an analog total switch unit, a plurality of analog input and output units, and corresponding to the number of the analog input and output units A plurality of consolidator units, SMV network switch units; the total command executive unit is con...

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PUM

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Abstract

The invention provides a spare power source automatic switch load testing device of an intelligent transformer substation. The spare power source automatic switch load testing device comprises a test device and a load calculating part and further comprises an analog quantity inputting, outputting and converting part and a switching load execution and command conversion part, wherein the analog quantity inputting, outputting and converting unit comprises a master command execution machine unit, an analog quantity master switch unit, multiple analog quantity inputting and outputting units, multiple combiner units of which the quantity is corresponding to that of the analog quantity inputting and outputting units, and an SMV (Selectable Mode Vocoder) network switch unit; and the switching load execution and command conversion part comprises a GOOSE network switch unit, multiple intelligent gathering units of which the quantity is corresponding to that of the combiner units and multiple load breaker units of which the quantity is corresponding to that of the intelligent gathering units. The device provided by the invention adopts an independent system, thereby effectively avoiding the risk brought to a power grid because the intelligent transformer substation uses a public passage test; and the device is simple and convenient to use and convenient to carry.

Description

technical field [0001] The invention relates to the technical field of substations, in particular to a test device for automatic switching and load shedding of power supplies in intelligent substations. Background technique [0002] Standby automatic switching is the abbreviation of the device for automatically putting into use the backup power supply. The function of the backup self-switching system of the power supply is: in the case of a sudden loss of the working power supply, the backup power supply is automatically switched on, and the power consumption of the equipment that loses voltage is quickly restored to ensure the continuity of the power supply. In terms of improving the reliability of power supply, standby automatic switching plays a key role. [0003] Take the traditional one-master-one-standby smart substation wiring method as an example to illustrate, as follows: figure 1 Shown: OCT is an optoelectronic current transformer for smart substation; OPT is an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/40G01R31/00
Inventor 王世祥王玮詹勤辉汪桢子刘振宗宋华高永强高柳明
Owner SHENZHEN POWER SUPPLY BUREAU