1) frequency-variable locomotives
变频机车
2) the air conditioner of locomotive
机车变频空调
3) Carriage for frequency converting
变频车
4) variable frequency motor
变频电机
1.
As for absence of performance curve of silicon steel sheet supplied with variable frequency power, difference between design value and testing value of manufactured variable frequency motors is increased.
设计变频电机时 ,由于非工频电源供电时硅钢片的特性曲线未知 ,会使电机设计值与实验值之间出现误差。
2.
Combining spectrum characteristics of electromagnetic noise with NSYS analysis of stator core inherent vibration frequency,reason for high-frequency electromagnetic noise of variable frequency motor was analyzed,and a series of measures to improve were proposed.
采用分析电磁噪声的频谱特性与有限元法分析定子铁心固有振动频率相结合的方法,对变频电机产生高频电磁噪声的原因进行分析,并提出了一系列的改进措施。
3.
A fault diagnosis method for variable frequency motor is presented,which is based on advanced MCSA and fuzzy inference.
提出一种基于改进的定子电流信号分析(MCSA)和模糊推理的变频电机转子故障诊断方法。
5) inverter-fed traction motor
变频电机
1.
Contrast aging tests are carried out on twisted pairs simulating inter-turn insulation and insulation to ground of inverter-fed traction motor under AC and square wave pulse conditions.
笔者通过采用两种电压源对模拟变频电机匝间绝缘和对地绝缘的绞线对试样进行老化试验,测量了tanδ随老化时间的变化趋势,分析了电压形式对匝间绝缘和对地绝缘介质损耗产生和发展的作用机理。
2.
Contrast aging tests are carried out on twisted pairs simulating inter-turn insulation of inverter-fed traction motor under AC and square wave pulse conditions.
变频电机匝间绝缘承受来自逆变器的连续高压脉冲方波的作用,为探讨工频正弦电压作用下具有很大差异的老化机理,通过采用工频正弦和高压脉冲方波两种电压源对模拟变频电机匝间绝缘的绞线对试样进行了电热联合老化对比试验,测量损耗角正切tanδ随老化时间的变化趋势,并结合热刺激电流测量结果,分析了电压形式对匝间绝缘介质损耗产生和发展的作用机理。
3.
Partial discharge(PD)is one of the key factors in insulation failure of inverter-fed traction motor.
局部放电是导致变频电机绝缘失效的主要原因之一。
6) frequency converter sets
变频机组
1.
Research on the fault diagnosis method of frequency converter sets;
小波变换在变频机组定子故障诊断中的仿真研究
2.
Rotor bar-broken fault is one of ordinary faults of frequency converter sets which will brings big economic loss and bad society effect.
在变频机组的常见故障中,转子断条故障是变频机常见故障之一,严重时会造成重大的经济损失和恶劣的社会影响。
补充资料：150t准轨电力机车
150t准轨电力机车
150t准轨电力机车
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条