The invention belongs to the technical field of escalator control, and provides a main power supply loop for an escalator control system. The loop comprises a main circuit breaker, a frequency converter, an operation contactor, an escalator traction machine, a control loop circuit breaker and a control transformer, and is characterized in that the loop also comprises a surge absorption plate, a leakage protector and a control power supply plate; the surge absorption plate is connected to the main power supply loop in parallel and is used for absorbing a preset interference peak current and a preset interference peak voltage in the main power supply loop; the leakage protector is serially connected to the main power supply loop and used for disconnecting the main power supply loop in case of electric leakage, overload or short circuit; the control power panel is connected to the main power supply loop in series and used for providing sine and cosine alternating currents of preset voltage. By the adoption of the main power supply loop, the damage of surge to the loop can be avoided, and it can be guaranteed that the escalator can still operate safely and reliably under the conditionthat the network voltage of an external power grid fluctuates; and the safety of elevator taking is guaranteed.

    本发明属于自动扶梯控制技术领域,提供了一种用于自动扶梯控制系统的主电源回路,包括主断路器、变频器、运行接触器、扶梯曳引机、控制回路断路器和控制变压器,其特征在于,还包括浪涌吸收板、漏电保护器以及控制电源板;浪涌吸收板并联接入主电源回路上,用于吸收主电源回路中的预设干扰尖峰电流以及预设干扰尖峰电压;漏电保护器串联接入主电源回路上,用于主电源回路漏电、过载或短路时断开;控制电源板串联接入主电源回路上,用于提供为预设电压的正余弦交流电。采用本主电源回路能够避免浪涌对回路中的伤害还能确保自动扶梯在外部电网网压波动的情况下仍能安全可靠运行;保证乘梯安全。


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    Title :

    Main power supply loop for escalator control system


    Additional title:

    一种用于自动扶梯控制系统的主电源回路


    Contributors:
    ZHONG YI (author)

    Publication date :

    2020-09-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B66B Aufzüge , ELEVATORS



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