Circulating current self-power supply system for on-line monitoring of GIL
A power supply system and circuit technology, applied in electrical components, circuit devices, emergency power supply arrangements, etc., can solve the problems of limited battery life and inconvenient maintenance, and achieve the effects of extended service life, easy construction and installation, and high stability.
Pending Publication Date: 2019-03-22
JIANGSU NARI HENGCHI ELECRICAL EQUIP CO LTD
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[0004] The purpose of the present invention is to provide a circulating self-power supply system for GIL online monitoring, which has the advantages of simple construction and installation, high stability, and strong environmental adaptability, and the load circuit connected to the bypass power switching circuit can be loaded on the bypass power supply For redundant load, when the system fails, it can be switched to the bypass power supply through the bypass input, which improves the reliability and solves the problem that the built-in battery power supply mode of GIL online monitoring equipment is easy to install, but the battery life is limited, and there are certain requirements for the use environment. , and it is not easy to maintain the problem
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] refer to Figure 1-4 , a circulating self-power supply system for GIL online monitoring, including a plurality of GIL bodies 1, a plurality of GIL bodies 1 are arranged in parallel and a plurality of diversion blocks 2 are arranged on the outer walls of both sides, and the gap between the diversion blocks 2 The uppermost GIL body 1 is connected to the energy harvesting current transformer 8 through the diversion bar 3, and the connection between the ene...
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The invention discloses a circulating current self-power supply system for on-line monitoring of GILs. The circulating current self-power supply system includes a plurality of GIL bodies. The plurality of GIL bodies are arranged in parallel and a plurality of guide blocks are arranged on the outer walls of both sides, the flow guide blocks are connected with each other through guide bars, the uppermost GIL body is connected with an energy extracting current transformer through one guide bar, the energy extracting current transformer comprises an energy extracting transformer coil shell, two sides of the energy extracting transformer coil shell are provided with energy extracting transformer insulators, two sides of the energy extracting transformer insulators which are opposite to each other are each provided with an energy extracting transformer connection bar, and one end of each energy extracting transformer connection bar is connected with the guide bars. The circulating current self-power supply system is simple in construction and installation a, high in stability and great in environmental adaptability. A load circuit connected with a bypass power supply switching circuit can load the surplus load on a bypass power supply, and can switch to the bypass power supply through the bypass input when the system fails, thereby improving the reliability.
Description
technical field [0001] The invention relates to the technical field of gas-insulated metal-sealed transmission lines, in particular to a circulating self-power supply system for GIL online monitoring. Background technique [0002] Gas-insulated metal-enclosed transmission lines are referred to as GIL for short. Compared with power cables, GIL can transmit a larger capacity of electric energy, up to GW level. Compared with overhead transmission lines, it is more suitable for high-voltage and ultra-high-voltage long-distance, large-capacity power transmission. In addition, it is suitable for hydraulic and thermal power plants, ultra-high voltage substation outgoing lines or contact lines, which can effectively use limited space resources, and realize high-voltage ultra-high-voltage large-capacity power directly entering urban underground substations and other load centers, and GIL It is widely used for optimizing power plant layout, transmission line crossing, long inclined sh...
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IPC IPC(8): H02J50/10H02J9/06
CPCH02J9/06H02J50/10
Inventor 朱然王琦王通德邵明锋
Owner JIANGSU NARI HENGCHI ELECRICAL EQUIP CO LTD