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Translation Resources

Beijing and Shanghai Chinese Translation Service in The field of Electric apparatus on main circuit


其它传感器  Other sensors
6.8.1 用于控制和检测的电压传感器、电流传感器应采用电流源输出。
The output of voltage sensor and current sensor used for control and detection shall be current.
6.8.2 应采用LEM或同等的产品。 The LEM or other equal equipments shall be used.
6.8.3 对输入电源的极性要有保护措施。
Some measures shall be taken to protect the polarity of input power.

华译网北京翻译公司翻译过大量有关主电路电器的文件资料。
Beijing Mandarin Chinese Translation Service Company has translated many technical documents in the field of Electric apparatus on main circuit.

6.8.4 传感器的信号线应采用屏蔽线。The signal line of velocity sensor shall be shielded.
6.8.5 当传感器工作时应有自测试的功能。
The velocity sensor shall be able to be self-tested during operation
6.9 主电路电器  Electric apparatus on main circuit
6.9.1. 一般描述  General
? 每个A—B—B—A动车组应通过受电弓/集电靴连接到电网。
Every A—B—B—A motor train set shall be connected with electric network by pantograph/collector shoe.
? 车辆外部过电压（如雷击）由避雷器保护。
The overvoltage on exterior of vehicle (e.g. lighting stroke) shall be protected by lighting arrester.
? 牵引设备应配置手动隔离接地开关。操作后，可将牵引设备隔离并使其接地。当隔离接地开关接地后，车间电源、受电弓、集电靴高压1500V不允许接入，且受电弓不能升起。
The traction equipment shall be provided with manual earthing switch.  The traction equipment can be isolated and earthed by operating this earthing switch.  If the equipment is earthed, the compartment power supply, pantograph and collector shoe with high voltage of 1500V shall not be connected. Moreover, the pantograph can not rise up.
? 每一个高速断路器同时给一节车或两节车的VVVF逆变器提供保护。
Every HSCB will provide protection for VVVF inverters in one or two passenger compartments.
? 每一个VVVF逆变器包括一个线路输入滤波器和一个IGBT电压源逆变器。
Every VVVF inverter includes a line input filter and a IGBT voltage source inverter.
? 每一个VVVF逆变器有一个预充电回路（包括充电接触器和充电电阻）以限制对线路滤波器的冲击电流。
There is a precharging circuit (including charging contactor and charging resistance) in every VVVF inverter, it is used for protecting the line filter from overhigh impulse current.
? 每一个VVVF逆变器有一个放电回路。
There is a charging circuit in every VVVF inverter.

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