用途及分类APPLICATION AND CLASSFICATION
220V-35KV交流电力系统用复合外套无间隙氧化物避雷器是用以保护变压器，箱式电站，电缆头，开关柜，电容器等各种电器设备免受大气过电压和操作过电压损坏的保护电器，按用途可分为配电型、电站型、电机型、电容器。
保护型和低压避雷器等五个系列。避雷器用于户内外，其正常使用条件为：
（1）环境温度不高于+40℃，不低于-40℃；
（2）海拔不超过1000m;
（3）电源频率不小于48Hz，不大于62Hz
（4）长期施加在避雷器端子间的工频电压应不超过避雷器的持续运行电压：
（5）地震烈度7度及以下地区；
（6）最大风速不超过35m/s；
（7）污秽四级以下地区；
（8）太阳光辐射。 |
220V-35KV
MOA polymer housed without gaps for a.c. system is
used to protect transformer,metalclad switchgear,capacitor
bank,rotating motor etc from overvoltage damaging.It
can be divided into five series according to its application:MOA
for distribution transformers,substation transformers,capacitor
banks,rotating motors,and low voltage.
MOA can be used in-door or out-door.The normal service
condition is as follows:
1 Ambient air temperature within the range of -40℃
to +40℃;
2 Altitude up to 1000m;
3 Power frequency within the range 48Hz to 62Hz;
4 The AC voltage which continuously applied on MOA
should not exceed the continuous operating voltage
of MOA;
5 Earthquake intensity not exceeding 7 degrees;
6 Wind velocity not exceeding 35m/s;
7 Thickness of the ice sheet on MOA not exceeding
20mm;
8 Solar radiation. |
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