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互感器的基本知识
          Basic knowledge For Transformer





          互感器特殊使用环境代号 | Specific Suing Environment Code Of Transformer
                                                                                                                    A
          ◆ 高原地区用代表符合："GY"；                     ◆ Code of using in highland area:"GY".
          ◆ 腐蚀地区用代表符合："F"；                      ◆ Code of using in currosive area:"F".
          ◆ 干热带地区用代表符合："TA"；                    ◆ Code of using in drytropic region:"TA".
          ◆ 湿热地区用代表符合："TH"；                     ◆ Code of using in wet tropic region:"TH".
          ◆ 干、湿热带地区代表符合："T"；                    ◆ Code of using in dry-wet tropic region:"T".
          ◆ 温升限值比标准规定限值降低5K以上时，用"WS"表示； ◆ " WS"denotes the occasion that wet-rising limit value is 5K lower than standard stipulated value.
          ◆ 污秽地区用代表符号见下表：                       ◆ See the table for code of using of using in polluted area:

                                                                       GB5582-85 中规定
                   污秽地区使用代表符号                                        Stipulated in GB5582-85
           Using represen-tative symbol of pollted are   污秽等级                        最小公称爬电比距 (mm/kV)
                                                     Polluted area class         Min nominal creepage specific distance
                          -                                0                                 14.8

                          -                                 I                                16

                         W1                                II                                20
                         W2                                III                               25

                         W3                                IV                                31




          适用工作条件 | Applicable Working Conditions
          ◆ 海拔高度不超过 1500 米。( 高原地区使用时，请提供海拔高度 )；
          ◆ 周围气温最大变化不超过 -5℃到 40℃ ( 特殊要求时，请在订货时注明 )；
          ◆ 普通型产品使用在相对湿度不大于 85% 的地区；
          ◆ 安装场所无严重影响互感器绝缘的气体、蒸汽、化学性沉积、灰尘污垢及其他爆炸性和腐蚀性介质，并无严重的震动和颠簸。
          ◆ The height above sea level is not above 1500m.(Please indicate height above sea level if it is used in highland area).
          ◆ Max.change of environmental temperature doesnit exceed 5℃ to 40℃ .(If there any requirement,please indicate in the order).
          ◆ Ordinary products can be used in the area with relative humidity not above 85%.
          ◆ There is no gas, steam, chemical sedimentation, dust or dirt or other explosive and corrosive medium that seriously affect transformer at installadtioh site.There is no
           serious vibration or bump.Either.



          注意事项 | Precautions
          ◆ 电流互感器一次有电流通过时，二次绕组不得开路，否则有高压产生，对产品性能亦有影响；
          ◆ 电压互感器二次绕组不得短路，否则互感器将被烧毁；
          ◆ 一次绕组的重复工频耐压，试验应在规定试验电压值的 80% 下进行。

          ◆ While the primary current goes through current transformer,the open circuit of secondary winding is not allowed,other wise high voltage will produce and affect the
           performance of product.
          ◆ The short circuit of secondary winding of voltage transformer is not allowed,otherwise the transformer will be burned.
          ◆ The repeated power frequency withstand voltage test of primary winding shall be conducted under 80% of stipulated test voltage value.











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