描述

Photovoltaic High Voltage/Low Voltage Prefabricated Substation

Applications
In a time of global energy stress and environmental protection, efficient energy use and development of renewable energy have become two important aspects of sustainable energy development. Photovoltaic has become one of the most promising“Green Energy" for large-scale development and application, in which photovoltaic power generation, as a clean energy mode of production, has been developed rapidly in China.
YBG-40.5 photovoltaic high-voltage / low-voltage pre-installed substation (substation) is a kind of outdoor complete substation, which is manufactured, assembled and debugged in the factory in advance. The utility model has the advantages of complete set, convenient installation, short construction period, low operation cost, high structural strength and strong anticorrosion performance, etc..

Executive standard
GB 17467        《 High-voltage/low-voltage pre-installed substations 》

GB/T 11022    《Common technical requirements for high-voltage switchgear and controlgear standards》

GB 1094.1       《 Power transformers part 1(general)》

GB 1094.2     《Power transformers part 2: temperature rise of liquid-immersed transformers》

GB/T 6451    《Technical parameters and requirements for oil-immersed power transformers》

GB 4208        《Case protection level (Ip Code)》

GB 7251.1      《Low-voltage switchgear and controlgear sets Part 1: General 》

Operating conditions
1. Amblent temperature: upper limit + 45 °C, lower limit-45 °C;

2. ALTITUDE: Not Exceeding 1000 M;

3. Wind speed: Equivalent 34 m/s (not greater than 700 PA) ；

4. Humidity: daily average not more than 95% , monthly average not more than 95% ；
5. Earthquake protection: The horizontal acceleration is not mare than C.4 m/s', the vertical acceleration is not more than 0.15 m/s'；

6. The inclination of the installation site shall not exceed 3°；
7. Environmental Conditions: no explosion risk, fire, chemical corrosion and severe vbration of the installation site；
Note: When the normal conditions are different from the above, please negotiate with the manufacturer.

Structural features

1.According to the function of the box is divided into high-voltage room, transformer room and low-voltage room, three compartments Gcodsword or "Eye"shape layout.

2. The bese of the productis welded structure. The parts above the base such as coaming. clapboard, door and top cover eare assemtled bylocal welding and bolt The shell of the box is made of cold-rolled plate, and the outer surface is painted or sprayed with plastic to ensure theproduct is suitable for outdoor weather conditions.

3. It can monitor the oil temperature and oil surface height of the top layer of the transformer

4. Selection of energy-saving three-phase oil-immersed or dry-lype transformer in box-lype substation.

5. The sealing part of the box has reliable sealing performance, the top cover should not accumulate water, leakage.

6. Each separate compartment n the product tox has enougn lighting faciltles and can automatically swich on and of the lighting power supplywith the opening and closingof the chamber door.

7. Kil. Substation with intelligent measurement and control device to achieve "Remote control','Remote signal,"Remote measurement'andother functions.