The power supply efficiency shall be greater than65% under rated input voltage. It will be measured at the typical load and maximum load.
在额定输入电压,最大负载和额定负载条件下,电源的效率大于65%。
2
By analyzing the hoisting and feeding-off models under the ratedload, the maximum dynamic loads and dynamic coefficients of fast line, dead line, every travelling line and derrick were obtained.