技术参数Technical parameters 

用于发电机组的并网操作。Used for grid-connection operation of generator sets.

环境温度Ambient temperature range：-25℃ to +55℃。

外壳防护Housing protection：IP44。

频率范围Frequency range:50HZ。

指示精度 Accuracy of indication：2.5。

安装方式installation：⊥。

耐振动Vibration resistance：2-100HZ≤0.7g。

耐电压Dielectric test：AC2.6KV，50HZ，1min。

功耗  consumption：≤5VA。

额定电压The rated voltage：单相Single-phase 100V，三相Three-phase 100V。

 外形图 Outline drawing

使用说明Directions

当待并联发电机的电压和频率大于电网的电压和频率时，电压差、频率差指示的指针应向“+”方向偏转；如果小于电网的电压和频率时，电压差、频率差指示的指针应向“—”方向偏转。When the voltage and frequency of the parallel generator are greater than that of the grid, the pointer of voltage difference and frequency difference should be deflected to the direction of "+". If it is less than the voltage and frequency of the grid, the pointer of voltage difference and frequency difference indicator should be deflected to the direction of "-".

如果当待并发电机的频率大于电网频率时，同期指示的指针应作顺时针方向旋转；小时电网频率时，应作逆时针方向旋转。If the frequency of the generator to be combined is greater than the frequency of the grid, the pointer indicating the same period shall rotate clockwise; When the power grid frequency is small, it should be rotated counterclockwise.

当待并联发电机的频率与电网的频率相差0.25～0.7HZ范围内时，且电压相同，则同期指示应能正常旋转。When the frequency of the parallel generator is within the range of 0.25～0.7Hz from the frequency of the grid, and the voltage is the same, the corresponding indication should be able to rotate normally.

仪表的额定频率为50HZ，偏离到48～52HZ范围内任一频率时，引起仪表指示值的改变不应超过基本误差。When the rated frequency of the instrument is 50HZ and deviates to any frequency within the range of 48 ~ 52HZ, the change of indicating value of the instrument shall not exceed the basic error.

当电压额定值偏离±10%时，引起仪表指示值改变不应超过基本误差。When the voltage rating deviates from ±10%, the change in the indicating value of the instrument should not exceed the basic error.