输入电压 Input Voltage | 三相四线制线电压380±20% 相电压:220±20% Three-phase four-line system Voltage:380±20%,phase voltage:220±20% 线电压:380±30%或相电压:220±30%(订货时需要说明) Voltage:380±30%or phase voltage:220±30% (Can be selected Please specify when ordering) |
输出电压 OutputVoltage | 单相:220V 三相相电压:线电压:380V phase voltage:220V Single-phase:220V Line voltage:380V |
输出精度 Output Voltage accuracy | 1-5%(可调) 1-5%(Can be adjusted |
频率 Frequency | 50HZ/60HZ |
效率 Efficiency | ≥98%(功率等级50kvA上) ≥95%(Power grade is over 50KVA) |
环境温度 Ambient Temperature | -10℃~+40℃ |
绝缘电阻 Insulation Resistance | ≥5MΩ |
电气强度 Electeic Intensity | 工频正弦电压2000V历时1分钟无击穿及闪烁现象 The voltage for electrical strength and power frequency sinusoidal is 2000V without breakdown and flicker over it lasts 1 minute |
过载能力 OverloadCapacity | 两倍的额定电流,维持1分钟 It can last 1 minute at twicet. |
波形失真 Wave form Distortion | 无附加波形失真 No additional waveform distortion |
保护功能 Protective Function | 具有过压保护,缺相、相序保护(单相无缺相及相序保护)及机械故障保护 It offers the protection against over voltage,over current,phase shortage snd phase(thesingle-phase offers no protection against the phase shortage snd phase-sequence)and mechanice failure |
响应速度 Response Speed | ≤1S(当外界电压变化10%) ≤1S(When the esternal voltange is 10%) |