Based on operation parameters of a three phase induction motor at duty type S1, this paper deduces the thermal state of this motor with constant output at duty type S7.
主要介绍一种依据一台三相异步电动机在S1工作制下的运行参数推断该台异步电动机容量不变时在S7工作制下发热情况的方法。
The operation of unbalanced three-phase loads of distribution network will increase power loss.
配电网三相负荷不平衡运行将增加配电网的电能损耗。
As one of the connections for three phase induction motor to operate from single phase supply, SEMIHEX connection can enable three phase induction motor have approximated symmetrical operation.
作为三相感应电动机单相运行的一种特殊接法，SEMIHEX连接可使三相感应电动机在单相电源上接近对称运行。
The new three-phase drive control strategy SITRAC combines dynamic torque control, robustness and optimized modulation withselfadjustment and allows speed sensorless operation.
新的交流传动调节方法SITRAC融合动力学、耐用性和具有自调节的最佳调制为一体，其运行可不用速度传感器。
The paper introduces some experience in anti-interference for design and parallel operation of small intermediate frequency three-phase synchronous generator with active load.
本文介绍了带有源负载时，小型三相同步中频发电机的设计和并联运行时抗干扰方面的一些经验。
Operation rules should be strictly followed. The instrument ADAPTS with a mono phase three pin plug, which connects to the earth for safety.
严格按操作要求使用仪器，本仪器采用单相三线插头，连接地线以确保用电安全。
A group of overload capability curve of three-phase electric traction transformer is given for use by design and operation units.
最后给出了三相牵引变压器的过载能力曲线组，供设计、运行单位使用。
The principle and structure of the resonance-proof three phase voltage transformer used in the neutral insulation system are discussed. The connection errors brought about in operation are presented.
论述了中性点绝缘系统中采用的三相防谐振电压互感器的原理与结构，并指出了运行中容易发生的接线错误。
This paper analyzed the reasons and its dangerous of phase failure and phase stagger operation for three-phase asynchronous motor.
分析三相异步电动机产生断相错相运行的原因及其危害性。
To realize safe, high efficient, economic operation of power grid, it is important to detect three phase electrical parameter and real-time monitor operating condition of power grid.
检测三相电力参数、实时监控电网运行状态对实现电网安全、高效、经济运行非常重要。
If no open phase protection is available during the operation course of three-phase equipment, it shall operate abnormally under open phase condition or shall be burnt if the case is serious.
如果不能在运行过程中对三相设备进行缺相保护，则会使三相设备在断相情况下异常工作，轻则设备运行不正常，重则烧毁三相设备。
The operation of this system is based on its three-phase marketing system of agricultural products and the corresponding financial system in Japan.
这一制度运作的基础是日本三段式的农产品流通、金融体系。
Firstly, this thesis has presented the system structure and operation principles of three-phase three-wire parallel APF.
本文首先给出了三相三线制并联型有源电力滤波器的系统构成以及工作原理。
The load operation of a three-phase induction-voltage regulator is presented briefly. The related data, phasor drawing and parameters in secondary circuit, primary load circuit and imput are analyzed.
简要介绍了三相感应调压器的负载运行情况，对二次回路参数、负载时一次回路参数、输入参数、相关数据和相量图进行了分析。
Three-phase inverter is one of the key components of the grid. The Micro grid operation management system unified control operation management.
微电网三相并网逆变器就是其并网的关键器件之一，其在微电网运行管理系统的统一调度控制下运行。
This article describes the operation principle and circuit scheme of a sort of three-phase combined variable voltage and variable frequency power supply.
提出了一种组合式三相变压变频电源的工作原理和电路结构。
The series JP2 three phase induction motor is perfectly designed. It is featuring in small volume, light weight, nice looking. firm construction and reliable operation.
JP2系列三相异步磨光电动机设计完善，具有体积小、重量轻、造型美观，结构坚固、性能可靠等显著优点。
The revamping of Phase 2 water treatment plant of three-cell three-layer floating bed process in the thermal power plant of Qilu Petrochemical Company and operation are described.
介绍了齐鲁石化公司热电厂二期水处理装置采用三室三层浮动床技术进行黄河水处理的改造及运行情况。
The saw-tooth carrier waves with positive or negative slope alternately are studied and applied into the three-phase PWM inverter soft-switching operation.
研究采用正负斜率交替的锯齿载波，成功地解决了主电路在任何电压矢量下都能实现零电压开关动作；
This paper proposes a novel phase-shifted zero-voltage-switch three-level converter. The operation principle of this converter is analyzed, and its phase-shifted circuit and drive circuit are given.
提出了一种新颖的移相控制零电压开关三电平变换器，分析了该变换器的工作原理，并给出了移相控制电路和驱动电路。
This paper proposes a novel phase-shifted zero-voltage-switch three-level converter. The operation principle of this converter is analyzed, and its phase-shifted circuit and drive circuit are given.
提出了一种新颖的移相控制零电压开关三电平变换器，分析了该变换器的工作原理，并给出了移相控制电路和驱动电路。
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