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Function-optimized fast switching system

A function and unit power technology, applied in the field of function-optimized fast switching system, can solve the problems of transformer overload, unable to adjust the load of parallel units, power failure of the whole plant, etc., to improve reliability, realize non-disturbance correction, and simple wiring Effect

Pending Publication Date: 2022-03-01
SHANGHAI LIMING RESOURCE REUSE
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a function-optimized quick-cut system, which solves the problem that the existing quick-cut device (or quick-cut system) cannot adjust the load of the parallel unit during the parallel process, which leads to the overload of the transformer and even the power failure of the whole plant. problems, improving the safety and reliability of the power system of the waste incineration plant

Method used

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Embodiment Construction

[0032] In order to easily understand the technical means, creative features, goals and effects of the present invention, the present invention will be further described below in conjunction with specific illustrations.

[0033] Such as Figure 1-4 As shown, a function-optimized quick-cutting system includes a quick-cutting device. The quick-cutting device adjusts the intervention by adding DEH in the open-in circuit, judges the power of the unit, and tests the pressure plate circuit of the quick-cutting device. The electrical signal circuit is connected to The power signal of the two units, the connection of each circuit adopts shielded soft wire;

[0034] The DEH adjustment intervention uses a normally open contact as a limiting condition for safe switching when the units are running in parallel in the accident switching, and the DEH adjustment intervention is to lead the power control unit in the steam turbine governor to the fast switching device;

[0035] The unit power j...

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Abstract

The invention discloses a function-optimized fast switching system, which solves the problem that a fast switching device cannot recognize that power superposition of a plurality of units exceeds the capacity of a main transformer to start fast switching logic when an external line fails, and prevents expansion of electrical accidents caused by overload of the main transformer, and adopts the technical scheme that the function-optimized fast switching system comprises a fast switching device, according to the fast switching device, DEH adjustment intervention, unit power judgment and fast switching device test pressing plate loops are additionally arranged in an input loop, power signals of two units are connected into an electric signal loop, and all the loops are connected through shielding flexible wires. The invention relates to an intelligent anti-misoperation automatic switching system for an auxiliary power supply, which can improve the reliability of an auxiliary power system of a waste incineration power plant.

Description

technical field [0001] The invention relates to a fast switching system with optimized functions, which belongs to the technical field of power supply switching. Background technique [0002] The 10kV high-voltage plant busbar is the main power supply hub of incineration power generation enterprises, carrying the dual attributes of external power transmission and internal power generation. In order to ensure the reliability of power supply and the rationality of the main wiring structure, a one-to-one arrangement is usually adopted, that is, single busbar segmentation. In the normal operation mode, the 10kV first and second busbars operate separately, and the two generators are sent to the national grid after deducting the factory power through two step-up transformers. The factory is equipped with a set of fast switching devices for power supply, which can start and recover after the failure of the external power grid, internal main transformer or a single generator failur...

Claims

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Application Information

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IPC IPC(8): H02H7/26H02H7/22H02H7/06H02H7/04H02H3/05H02H3/06
CPCH02H7/26H02H7/22H02H7/06H02H7/04H02H3/05H02H3/066
Inventor 陈卫华乐亮亮沈龙朱寅陈凯星钱佳磊
Owner SHANGHAI LIMING RESOURCE REUSE
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