1.通常
1.General
YB（）系列预装变压器适用于7.2kV到36kV环网供电和终端供电系统的高压配电计算和保护设备。变电站里除了有变压器，还有四个负荷开关，两个负荷开关，熔断器保护和插电式保险丝高压侧。
YB（）series pad mounted transformer is suitable for 7.2kV up to 36kV ring power supply and terminal power supply system as HV distribution calculation and protection equipment. In the substation except transformer there are 4 load switches, two-position load switch, protection fuse and plug-in fuse in the HV side.
我们可以另外安装控制电器，配电电器，补偿电器和仪表。该变电站可在室内或室外使用。
We can install control electrical, distribution electrical, compensation electrical and meters. This substation can use indoor or outdoor.
此外，本系列预装式变电站具有结构紧凑、成套性强、运行安全可靠、维护方便、造型美观等优点；具有体积小、占地面积小、可选择性大、现场安装最小、安装调试周期短、以及随负荷中心移动等特点。
This series of prefabricated substation has a compact, complete and strong, safe and reliable operation, easy maintenance, beautiful appearance, etc.; with small size, small footprint, optional large, minimal site installation, installation and commissioning period is short, and move with the load center and so on.
2.环境条件
2.Service environment
a)空气温度：最大温度：+40℃；最小温度：-25℃
a) Air temperature: Maximum temperature: +40°C; Minimum temperature:-25°C
b)湿度：月平均湿度95%；日平均湿度90%
b) Humidity: Monthly average humidity 95%; Daily average humidity 90% .
c)海拔高度：最大高度：2500m
c) Altitude above sea level: Maximum installation altitude: 2500m
d)周围空气不含腐蚀性，无明显可燃性气体污染，蒸汽等。
d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
e)没有频繁的地震灾害
e) No frequent violent shake
3.主要技术参数
3. Main technical specifications
名字 Name | 单位 Unit | 高压电力 HV equipment | 变压器 Transformer | 低压电力 LV equipment |
额定电压 Rated voltage | KV | 12 | /0.4 | 0.4 |
额定电流 Rated current | A | 630 | 3/75-75/1875 | 小于4000 Less than 4000 |
频率 Frequency | HZ | 50 |
额定电容 Rated capacity | KVA | 50-1250 |
Pfr承受电压 Pfr withstand | KV | 42 | 2.5 |
基本脉冲电平 BIL | KV | 75 | |
地震防护等级 Crust protection grade | | IP23 | 全密封 Omni seal | IP33 |
噪音等级 Noisy grade | dB | 油式小于55 Oil type less than 55 |
外观尺寸 Appearance dimensions | mm | 根据首要布线电路架构 According to primacy wiring circuit schema |