外文翻译-变电所的概述.doc

1、英文原文1 A historical review of the rural substation Substation construction of rural agricultural production with drought, drainage need electricity birth, because of the short cycle power applications, low efficiency, rural power grid construction has not been sufficient attention at all levels. Cons

2、ider the reliability of power supply less funds invested little, a group of high-pressure urban network discarded electrical equipment, back into the rural substation use, so the contradictions behind the original rural network equipment is more prominent. Side of the main transformer substation, su

3、ch as conventional multi-oil circuit breaker circuit breakers, 10kV using voltage switchgear, substations city network is a model for copying. While complete sets of equipment and good technical performance and reliability has been greatly improved, but because the equipment technical parameters of

4、the high repair and maintenance work load is heavy, easy to leak oil, a safe and civilized production has brought some difficulties. Users within the mining layout, leading to the high cost, large area, long construction period, and the rural economy is not developed and produced a national land res

5、ource constraints conflict, from the facts of Chinas rural areas, increasing the burden on farmers. Conventional substation covers an area of more large investment and long construction period, the lack of rural power features, therefore, according to the specific characteristics of rural power, rur

6、al substation construction and development to explore the direction and pattern, is the pressing problem. At present, Chinas high-voltage electrical appliances, especially high-voltage switching equipment, technology has been greatly improved, a fundamental solution to rural substation automation an

7、d reliability problems. So we must be combined with the actual situation of rural power, the use of new technology, new equipment, to phase out old equipment.2 small rural programs of Substation At present, the rural power grid and power infrastructure, including the CPC Central Committee attaches g

8、reat importance to the rural power grid construction and transformation in the country has already started. According to ministerial small rural power substation design procedures, Rural Design Guidelines for Unattended Substation, county-level scheduling and communications automation norms and othe

9、r procedures, the design of the proposed new rural substation requirements: (1) rural substation building program is necessary to meet the needs of agricultural modernization, but also for the actual situation of the rural power grid. (2) new substations should adopt new technology, new equipment, c

10、ombined with the actual rural network, and be technologically advanced and reliable security, not a long maintenance cycle, maintenance work is small. (3) the overall layout of the substations in rural areas, pay attention to saving investment, maintenance work is small. According to the above spiri

11、t, we should follow the small-capacity, point clouds, short radius and outdoor type, small size, low cost, safe, reliable, advanced technology principle, proposed Rural Power Substation program.2.1 The first program Main transformer high-voltage SF6 circuit breaker with side, low side of the SF6 cir

12、cuit breaker using column; 10kV SF6 circuit breaker outlet using column; control and protection using integrated set of computer controlled devices.2.1.1 Primary Equipment 10kV SF6 use this program as the outlet side of the protection switch, you can replace the indoor type GG-1A High Voltage Switch

13、gear, out of outdoor-type DW-35-type multi-oil circuit breaker. High voltage circuit breaker oil-free, safe and civilized for my Office first class production of double standards and power supply enterprises laid the foundation. At the same time, so that the technically advanced, SF6 circuit breaker

14、 after the current scientific research efforts, the quality of equipment has been resolved, have been put into mass production. The SF6 circuit breakers for 35kV, the Bureau has been put into operation in the Western Hills substation, reliable, and run well. The SF6 circuit breakers 10kV Bureau of P

15、anjis folder in my groove substation, collector of the Tang Dynasty, Fengtai summer collection substation were put into operation, the overall situation is safe. SF6 circuit breaker from the operation of the province of view, manufacturing quality is mature. Voltage quality to meet the requirements,

16、 with adjustable voltage transformer load tap transformer SZ 9 type.2.1.2 secondary equipment Integrated automation devices used to replace a large set of control cabinet protection, to achieve the control, protection, measurement, signal as a whole, reducing the control room area, is conducive to safe operation and reduce the protection system of project cost, while using laws consistent with the historical develo