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发明授权
CN101593966B 三相电机缺相保护器 失效 - 权利终止

  • 专利标题： 三相电机缺相保护器
  • 专利标题（英）： Open-phase protector for three-phase motor
  • 申请号： CN200910074089.5
    申请日： 2009-04-01
  • 公开(公告)号： CN101593966B
    公开(公告)日： 2011-04-20
  • 发明人: 卫斌鹏
  • 申请人： 卫斌鹏
  • 申请人地址： 山西省晋城市阳城县润城镇王村村
  • 专利权人： 卫斌鹏
  • 当前专利权人： 卫斌鹏
  • 当前专利权人地址： 山西省晋城市阳城县润城镇王村村
  • 代理机构： 山西五维专利事务所
  • 代理商 李毅
  • 主分类号： H02H7/09
  • IPC分类号： H02H7/09
三相电机缺相保护器
摘要：
一种三相电机缺相保护器，属于三相交流电机安全保护领域。它由电容降压整流滤波稳压电路、继电器控制输出电路、三相交流电整流滤波取样电路、三相直流电压比较输出控制电路四部分组成。电容降压整流滤波稳压电路由电阻，电容、二极管、三极管、稳压二极管串并联而成；继电器控制输出电路由继电器，三极管、可控硅、光耦、二极管、电阻串并联而成；三相直流电压比较输出控制电路由二极管、电阻、电容、稳压二极管、光耦串并联而成；三相交流电整流滤波取样电路由电阻，电容、二极管串并联而成。本发明的三相电机缺相保护器体积小，重量轻，继电器的供电电压稳定，保护可靠。
摘要（英）：

The invention relates to an open-phase protector for a three-phase motor, which belongs to the field of security protection of three-phase alternating current motors. The open-phase protector consists of capacitor voltage-reduction rectifier filter voltage stabilizing circuit, a relay control output circuit, a three-phase alternating current rectifier filter sampling circuit, and a three-phase direct voltage comparison output control circuit. The capacitor voltage-reduction rectifier filter voltage stabilizing circuit is formed by series-parallel connection of a resistor, a capacitor, a diode, a triode and a voltage stabilizing diode; the relay control output circuit is formed by series-parallel connection of a relay, a triode, a controlled silicon, an optical coupler, a diode and a resistor; the three-phase direct voltage comparison output control circuit is formed by series-parallel connection of a diode, a resistor, a capacitor, a voltage stabilizing diode and an optical coupler; and the three-phase alternating current rectifier filter sampling circuit is formed by series-parallel connection of a resistor, a capacitor and a diode. The open-phase protector for the three-phase motor has the advantages of small volume, light weight, stable supply voltage of a relay, and reliable protection.

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