1.通常
1. General
RBM类型的户外计量箱是安装于室外计量电网的。该产品主要由组合互感器和电度表箱两部分组成。组合互感器是由两个或三个单相电压互感器和电流互感器组成，采用25＃变压器油作为绝缘介质，一、二次出线端均用瓷套管安装在面板上。
电度表箱装在组合互感器的侧面，由一只有功电度表和一只无功电度表组成，具有计量精度高，重量轻，安装方便，低损耗功能。
这个户外电力计量装置，适用于3相，50Hz，6kV到40.5kV的电网。
该产品符合所有有关IEC / ANSI国际标准。
The outdoor metering unit of type RBM are intended for outdoor installation for metering power grid. The products mainly consists two parts, combined transformers and watt-hour meter there. The former is made up to two or three single-phase voltage transformer and current transformer, which adopts 25# transformer special oil as insulation medium and whose primary and secondary line ends are both installed one panel by porcelain bushing.
Watt-hour meter tank is fixed on the flank of combined transformer and comprises one active metering meter and reactive KWH meter, which has high precision measurement, light weight, convenient and low lose functions.
This outdoor power metering unit is applicable to 3 phase and 50Hz, 6kV up to 40.5kV power grid.
The products are widely compliance with relating IEC/ANSI international standard.
2.使用条件
2. Using condition
环境温度：-40℃ ~ + 85℃，日温差：25℃;
海拔：≤3000m的地区;
风速不超过35米/秒;
正常的振动强度
没有强度侵蚀气体，介质的地方（例如酸，碱，等）
污染等级：IV级;
充电温度-40℃+ 85℃。
Ambient temperature: -40℃~+85℃, day temperature difference: 25℃;
Altitude:≤3000m area;
Wind speed no exceeds 35m/s;
No normally intensity vibration
No intensity erosion gas, medium place (for example acid, alkali, smother eg.)
Pollution class: IV class;
Charge temperature -40℃~+85℃.
3.技术参数
3. Technical parameter
类型 Type | 电压比 Voltage Ratio (kV) | 电流比 Current Ratio (A) | 频率 Frequency (HZ) | 电压互感器准确 等级及额定输出（VA) VT accurate Durban (VA) | 电流互感器准确等级及额定输出(VA) CT accurate Durban (VA) | 绝缘水平 Insulation level (kV) |
CL0.2 | CL0.2 | CL0.2 | CL0.2 |
RBM-11 | 11/0.11 | 5-300/5 | 50 | 25 | 25 | 10 | 10 | 11/42/75/95 |
RBM-33 | 33/0.11 | 5-300/5 | 50 | 50 | 50 | 10 | 10 | 33/95/185 |