shift unit

Summarizes thoroughly the operation of the first home-made large scale nitrogenous fertilizer shift unit since its commissioning and start-up.

较全面地总结了第1套国产化大氮肥变换装置试车及开车以来的运行情况,针对开车过程中出现的问题,提出了解决措施,消除了缺陷和隐患,延长了装置运行周期。

The signal transform device is an important states measuring and signal transforming facility in the flight experiments.

信号变换装置是飞行试验中状态测量和信号变换的重要设备。

Thanks to the use of balance convert devices, cophase power supply system can eliminate system imbalance, filter harmonic current and compensate reactive current, so the unsymmetrical single-phase load which usually have a sharp change, abundant harmonic and low power factor may be regarded as a pure resistance symmetrical three-phase load to the power system.

同相供电系统由于采用平衡变换装置,可以消除系统不平衡,滤除谐波并补偿无功,使变化剧烈、含有大量谐波、低功率因数的不对称单相牵引负荷,对电力系统而言仅相当于一个纯阻性的三相对称负荷。