Moreover, the advancing closing time of the closing resistor can be obtained at the same time.
通过对断路器主触头与辅助触头的动作情况进行分析,提出了一种不用拆开合闸电阻与主触头的连接线就可以测量合闸电阻的方法,而且可以同时测出合闸电阻的提前合闸时间。
In this paper,the abnormal phenomenon of the closing time of a 500 kV circuit breaker was analyzed,and actions taken to avoid the condition in the other sites were put forward.
对一起500kV断路器现场交接试验中出现合闸时间异常的事例,结合西门子断路器的结构特点进行试验分析,得出系受现场电场干扰影响所致的结论,提出了相应解决措施。
This paper explains course design of minimum time control, including teaching contents, critical knowledge points and an example.
“最小时间控制问题”是控制专业课程“最优控制”中极大值原理的重要应用。
The maximum distance under the given time and the minimum time under the given distance are calculated by using the solution curve of the differential equations and the optimal control method, combining with the methods of the general extreme value and functional extreme value.
首先通过对人体4个生理参数和风力的分析,由牛顿第二定律建立了赛跑的最优速度模型与能量消耗模型;其次利用微分方程的解曲线与最优控制方法,结合普通极值与泛函极值方法,给出时间一定情况下的最大距离,以及赛跑距离一定情况下的最小时间,并利用最小二乘法对若干生理参数进行拟合估计;最后以某高校40多年男子赛跑成绩为依据进行模型检验,找出理论值与实际纪录值的相对误差,从而为提高赛跑成绩提供了科学依据。
Second, the maximum distance D under the time T is determined and the minimum time T under the distance D is determined by using the integral curve of the differential equations and the optimal control method, and the methods of the general extreme value and functional extreme v.
基于牛顿第二定律,首先通过对人体4个生理参数(最大冲力F;体内和体外的阻力系数τ;由O2的新陈代谢作用提供能量的速度ξ;体内储存能量的初始值E0)和风力R的分析,建立赛跑的最优速度数学模型与能量消耗数学模型;第二,利用微分方程的积分曲线与最优控制方法,结合普通极值方法和泛函极值方法,给出时间T一定的情况下的最大距离Dmax以及赛跑距离D一定的情况下的最小时间Tmin;第三,利用最小二乘法对上述生理参数进行拟合估计;最后,以某高等学校20多年的女子赛跑成绩为依据进行模型检验,找出理论值与实际纪录值的相对误差,从而为提高赛跑成绩提供了科学的依据。
Analysis for the Abnormal Phenomenon of the Closing Time in the 500 kV Circuit Breaker
500kV断路器合闸时间异常情况分析
Synchronous Closing Time Precalculation Based on Distributed Neural Network
基于分布式神经网络的同步合闸时间预测方法研究
downbound entry
下行(水)进闸时间
downbound exit
下行(水)出闸时间
Estimation and analysis on delays at busy waterway lock
繁忙船闸的船舶待闸时间分析与估算
basic gate propagation delay time
基本闸传递延迟时间
reverse recovery time
反向恢复时间-反向阻断晶体闸流管的
Inrush-current Questions of the No-load Experiment-transformer Closed
试验变压器空载合闸时涌流问题探讨
Study on the Effect of Trip-Reclosure Time on Power System Stability;
跳闸—重合闸操作时机对电力系统稳定性影响的研究
Data Exchange Technique Based on Time Gate and Passing Token
基于时间闸和放行令牌的数据交换技术
This is the total time from energizing the trip coil until the interruption of current on the primary arcing contacts.
此时间为从跳闸线圈受电到主触头电弧电流开断为止的总时间。
When opening, the switch blade is swung upward roughly 90, creating a long, simple gap in air.
隔离开关分闸时,闸刀片向上转过大约90,形成一个简明的长空气间隙。
Space Finite Analysis of Sector Lock Gate Structure;
船闸三角闸门结构的空间有限元分析
Passengers who used city check-in service are also required to board the ship before gate close time.
所有已办理城市预先登记之乘客，亦必须于指定之关闸时间前登船。
Analysis on Lightning Stroke Accident in 220 kV Transmission Line During Single-Phase Reclosure of Line Breaker and Its Electromagnetic Transient Simulation
线路开关单相重合闸期间雷击事故及电磁暂态仿真
network tripping and reclosing device
电力网自动跳闸和重合闸装置
Water went rushing through the lock gates.
水流经水闸时十分湍急.
Water were rushing through the lock gate.
水流经水闸时十分湍急。