The booster station is the overall system to change the charge voltage passing through, which is mainly used for boosting, so as to reduce the borrowing of line current and reduce power loss. The design scope of the booster station includes switchgear, transformer, power consumption, transmission and transformation frame, lightning protection and grounding, control and protection system, earth structures, etc.
Switchyard is to divide the power of the power grid into several or more substations, and then the substation will reduce its voltage to industrial and domestic power. Or the power station is used for high-voltage transmission. Its function is to distribute high and medium voltage electric energy. The switchyard has switchgear, usually including busbars, but no power transformers.
Switchyard is to divide the power of the power grid into several or more substations, and then the substation will reduce its voltage to industrial and domestic power. Or the power station is used for high-voltage transmission. Its function is to distribute high and medium voltage electric energy. The switchyard has switchgear, usually including busbars, but no power transformers.
Extended data: structural characteristics of box type substation:
1. Structure of American box type substation: connection form of box type substation: single transformer with one or two 10KV connections, with the capacity of 500KVA~800KVA low-voltage wiring cables of 4~6 routes. 2 Equipment of American box type substation: transformer, 10KV ring network switch, 10KV cable plug, low-voltage pile box and other main components. The utility model has the advantages of small size, low cost, convenient installation, etc.
2. Advantages and disadvantages of American box type substation:
2.1 Advantages: small size, small floor area, convenient installation, convenient camouflage, easy to coordinate with the residential environment. Shorten the length of low-voltage cables, reduce circuit losses, and reduce the cost of power supply combination.
2.2 Disadvantages: there is no electric mechanism with low reliability of power supply, and it is impossible to add a capacitor free device of distribution automation device, which is not conducive to reducing the noise of line loss higher than that of type iii and v stations. Type iii and v stations place transformers indoors to play the role of sound insulation. Besides, the centralized electromagnetic radiation of type iii and v stations is decomposed into multi-point radiation with different civil engineering foundations, Therefore, the increased capacity of the box changes.
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