| 用途 Application |
Ⅱ 该磁力起动器主要用于具有煤尘和爆炸性气体的危险场所及煤矿井下对额定电压6（10）KV，额定频率50Hz，额定电流至400A的交流电动机进行控制和保护。本磁力起动器是我公司新研制的换代产品，在技术指标、性能和产品结构等方面均优于国内同类产品，特别是在保护方面采了先进的单片机技术，12位A/D转换器对交流信号进行直接采样运算，更加真实的反映出电网的实际状况，全中文液晶显示，菜单式操作，使控制电路更简单、显示信息更丰富，为中心点不接地或经消弧线圈接地的供、变电系统提供更可靠的控制与保护。
Ⅱ This magnetic starter is mainly applicable for coal mine which has explosive gas and coal dust,control and protect ACelectromotor of rated voltage 6(10)KV,frequency 50Hz and rated current up to 400A,This magnetic starter is the newly developed generation product.Its technical indicatiors,performance and structure are all superior to the similar product in out contry.Especially the protection,adopt advanced singlechip technology,12 position A/D converter proceed sampling calculate to the communication single directly,show the actual state of power network,with full Chinese LCD display and menu operation,these make the circuit control conveniently and show abundance information,offer reliable control and protection to the power supply and electrical transformer system whose center point uneatrh or earth through arc suppression coil. |
| 技术参数 Technical parameter |
| 额定电压 Rated voltage |
6KV |
10KV |
| 最高工作电压 Max working voltage |
7.2KV |
12KV |
| 额定电流 Rated current |
50A 100A、200A、300A 、400A |
| 额定频率 Rated frequency |
50Hz
|
| 额定最大开断电流 Rated max breaking current |
8le(le means rated current of major circuit)
|
| 额定关合电流 Rated closing current |
10le(有效值)Peak value(le means rated current of major circuit)
|
| 极限分断电流 Limit disconnection current |
10le(le means rated current of major circuit)
|
| 真空断路器机械寿命 The mechanical life of vacuum breaker |
3x104次 times
|
| 隔离开关机械寿命 The mechanical life of isolation switch |
2000次 times | | | | |
|
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