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check     
相关语句
  检查
    The Threading and Check of Motor with Wet Winding
    湿式绕组电动机的穿线与检查
短句来源
    On Line Check of Automatic Regulating System in Heat Power Engineering
    在线检查热工自动调节系统
短句来源
    The Design Rechecking in The First Regularly Dam Safety Check of Maotiaohe Xiuwen Hydropower Station
    修文电站大坝第1次安全定期检查的设计复查
短句来源
    THE PROCEDURE TO CHECK THE WIRINGS OF DIRECTIONAL NEGATIVE-SEQUENCE POWER ELEMENT WITH LOAD CURRENT AND VOLTAGE
    用负荷电流电压检查负序功率方向元件接线的程序
短句来源
    Test Check of Line 220KV Protection in Integrated Automatic Transformer Substation
    综合自动化变电站中220KV线路保护的试验检查
短句来源
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  检测
    Rotor Aluminiumcasting Quality Check
    转子铸铝质量的检测
短句来源
    Two Experiments in the Course of Check and Conversion
    《检测与转换》课程中两个实验的研究
短句来源
    Safety check for metal structure of the Xinfengjiang hydropower station
    新丰江水电站金属结构安全检测
短句来源
    Peak check circuit with high input impedance and feed back system
    带反馈检测系统的高输入阻抗峰值检测电路
短句来源
    Accident analysis and check for emergency gate of No.2 inlet of Changhu Hydropower Station
    长湖水电站2号进水口事故闸门检测与事故分析
短句来源
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  考核
    Josephson voltage primary standard and check the stability of DC reference standard
    约瑟夫森电压基准与固态电压标准的稳定性考核
短句来源
    This voltage and frequency quality checking system will automatically monitor the voltage and frequency for power plant, analyze the three-phase voltage imbalance, harmonic voltage content, voltage fluctuation and voltage step change, and check on the overshoot index and eligibility ratio of voltage and frequency.
    电压频率监测考核系统将自动监测发电厂的电压和频率,分析电压的三相不平衡度、高次谐波含量、电压波动率和电压突变度等,并自动考核电压和频率的越限指标及合格率.
短句来源
    The device is supplied by solar energy and low power dissipation embedded technology is used to accomplish exact data acquisition,storage and infrared communication in order to check the electrical energy of 10kV voltage users.
    此装置由太阳能供电,采用低功耗嵌入式技术,完成电量数据的精确采集、存储,并具有红外通讯功能,实现10kV用户电能考核目的。
短句来源
    An Elementary Discussion On the Check System of the Assets Operation in a Branch Company
    浅议分公司资产经营考核
短句来源
    Water Management Technology and Check Index for Water Saving and Discharge Redution of Thermal Power Plant
    火电厂节水减排的水务管理技术与考核指标
短句来源
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  校验
    An advanced intelligent instrument —HEW2000 multifunction check instrument for transformer
    一种先进的智能化仪器——HEW2000系列多功能互感器校验
短句来源
    HEZ-1 Type Digital Display Self-Balancing Check Meter of Mutual Inductor
    HEZ-1型数显自平衡互感器校验
短句来源
    Research about CDT Check Code Calculation
    远动通讯规约CDT中间余式与校验码算法的研究
短句来源
    The Development and Application of Instruments field Synthetic Check Processing System in Heat Powe Engineering
    热工仪表现场综合校验处理系统的研制与应用
短句来源
    ST—9040C Type Field Check Gauge
    ST—9040C型电能表现场校验
短句来源
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      check
    These conditions usually amount to checking the boundedness of the operator on functions that are powers of the weights and are hard to check.
          
    The check of optimality conditions in nonsmooth programming
          
    Thus it makes the check of optimality conditions for this class of nonsmooth programming problem much easier.
          
    Numerical examples are showed to check the results which are more general than those already reported.
          
    This paper analyzes and simulates the performance of irregular low-density parity check (LDPC) codes on Rician fading channels.
          
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    In order to maintain the synchronized wound asynchronous machine in synchronism, it must have a minimum magnetizing current, which increases itself with the loads. In this article, a simple formula is given for the calculation of minimum magnetizing current, and the results of these calculations are checked fair well with the experimental data. By means of this formula and the data of the actual temperature of an asynchronous machine, it is possible to predict whether the machine can be synchronized or...

    In order to maintain the synchronized wound asynchronous machine in synchronism, it must have a minimum magnetizing current, which increases itself with the loads. In this article, a simple formula is given for the calculation of minimum magnetizing current, and the results of these calculations are checked fair well with the experimental data. By means of this formula and the data of the actual temperature of an asynchronous machine, it is possible to predict whether the machine can be synchronized or not. Comparisons for several commonly used different rotor winding connections from various aspects, are given. Results of this paper may be useful for practical engineers.

    线绕式异步电机同步化运行时,其励磁电流必需大于某一最小值(随负载率的增加 而增大)才能保证同步。本文提供计算此最小励磁电流之简便方法,计算结果与实验结 验结果比较接近。利用此计算方法及电机实际温升数据可以预先判断某一具体异步电机 实现同步化的可能性。本文还从几个方面比较了同步优异步电机的几种常用励磁方式。 可供运行、电机部门工作人员参考。

    Using the results obtained from model experiments, this paper shows that, by adopting a power system stabilizer in the excitation system, it is possible to increase the damping torque of a generator, to suppress its self-excited vibrations, thereby effectively improves the steady-state stability(or dynamic stability)of a power system This paper gives the test results of the steady-state stability limits of power system by using power system stabilizer with electric power, superfluous power and frequency as...

    Using the results obtained from model experiments, this paper shows that, by adopting a power system stabilizer in the excitation system, it is possible to increase the damping torque of a generator, to suppress its self-excited vibrations, thereby effectively improves the steady-state stability(or dynamic stability)of a power system This paper gives the test results of the steady-state stability limits of power system by using power system stabilizer with electric power, superfluous power and frequency as its control signals. Further checks were also done by applying short circuits, sudden change of prime mover motive power, sudden variation of transmission line parameters, load rejections, etc.; as a result, it has been discovered that the power system stabilizer with frequency as its control signal gives good performance and easily be realized in practice. Constructional details and parameters of power system stabilizer are also given in this paper. Factory has been arranged to produce such power system stabilizer in accordance with the results of this investigation, this should be an effective and a realistic way to improve the stability of electric power system of our country.

    本文用模型实验证明,在励磁调节系统中,采用电力系统镇定器(Power SystemStabilier)能增加机组的阻尼转矩,抑制发电机产生的自发振荡,因而有效地提高了系统的稳定性。文中提供了电功率、过剩功率及频率作讯号的镇定器对提高系统稳定性的实际效果,并用短路、原动机功率突变、线路参数突变、甩负荷等运行方式进行了实验校验,说明采用频率为讯号的镇定器,性能良好,也便于实现,文中也给出了镇定器的结构及参数。有关厂家,将根据实验结果,生产镇定器的工业产品,这就为改善我国电力系统中存在的稳定性问题,提供了一项有效而便于实现的措施。

    In this paper it introduces all the selective ways and their calculating equations about the setting of ground distance relays on solidly grounded systems, in which we have considered the effect of power infeeds or branched outfeeds at the far end of the reach section and the effect of zero sequence mutual induction from a parallel line.In addition to pointing out some ex- perienced formulas abroad for taking count of the resistance of the fault itself and its typical data.That is necessary to check the...

    In this paper it introduces all the selective ways and their calculating equations about the setting of ground distance relays on solidly grounded systems, in which we have considered the effect of power infeeds or branched outfeeds at the far end of the reach section and the effect of zero sequence mutual induction from a parallel line.In addition to pointing out some ex- perienced formulas abroad for taking count of the resistance of the fault itself and its typical data.That is necessary to check the protective sensitivities. Besides, they are also concerned with the problem to coordinate the setting for ground distance relays.In this case, the three-star connection autotransformer was connected at the end of line or the single-pole, or even complex reclosing relays was used on the transmission lines.

    本文对用于大接地电流系统中接地距离保护整定值的选择方法及其计算公式作了较为全面的介绍,其中计及电源助增、分支汲出以及平行线零序互感的影响。对故障点的过渡电阻还列出一些国外的经验计算式及其典型数据,这对校验保护装置灵敏度是十分必要的。文中还涉及与末端“三星形接线”自耦变压器和实现单相或综合重合闸的线路上接地距高保护相互配合整定的问题。

     
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