同步装置

The moving of gantry frame uses frequency conversion dynamo to drine via lovking ronge on synchronization and decelerator,which is transmitted stably.Equip with welding machine on the beam drove by two geoups of leng thwise and widthwise moving device use air-opened device to adjust the up-down and left-right shifting of machine head.

门架移动采用变频电机经由同步带和减速机减速来驱动，传动平稳，横梁上配有两组横向，纵向移动装置带动的焊接机，用气动装置来调节机头上的下左右位移。

The pseudo-static test which subjects to horizontal load on the A-type autoclaved aerated concrete block wall was adopted. Reinforced concrete beams were set up at the upper and lower ends of the test block, and the four-bar linkage device was provided to ensure that the top of the wall was only in translatory motion, not in rotation at the level force. Hydraulic synchronous loading device was adopted to simulate the vertical load which was produced by the wall of the housing interlayer.

对A类蒸压加气混凝土砌块墙体采用水平荷载作用下的伪静力试验，试件的上下两端设置了钢筋混凝土梁，通过四连杆装置保证墙体顶部在水平力作用下只有平动而无转动，并采用同步液压加载装置模拟房屋层间墙体作用的竖向荷载。

The results indicate that in the synchronizing condition the MRF is unyielded, every point of MRF in the flow field has the same angular velocity. Under the slipping condition, with the increase of magnetic field or the decrease of slip speed, MRF may transfer from whole yield to partial yield. When the MRF wholly yields, the angular velocity of MRF increases nonlinearly with its radius, the non-linear distribution becomes more obvious as the magnetic intensity in the working gap increases. When the MRF partially yields, the yield region expands with the decrease of magnetic intensity or the increase of slip speed and the unyield region always reaches the driven rotor. The transfer torque of MRTD increases with the increase of the external magnetic field, but the transfer torque maintains a constant value approximately with the variation of slip speed at the same magnetic intensity.

研究结果表明，在同步工况下，传动装置流场中磁流变液未屈服，各点角速度相同；在滑差工况下，随外加磁场的增大和滑差转速的减小，磁流变液逐渐从完全屈服向部分屈服转变；磁流变液完全屈服时，磁流变液角速度随半径呈非线性增加，工作间隙中磁场越强，流场的非线性分布越明显；磁流变液部分屈服时屈服区域随外加磁场的增大而减小，随滑差转速的增大而增大，未屈服区与主动转子相连；稳态下磁流变传动装置传递的转矩随外加磁场的增加而近似呈线性增大，但在相同外加磁场下，传递转矩基本不随滑差转速改变而改变，表现出良好的恒转矩特性。

After the research it is held that when internal fault takes place in the transmission line where the series compensation device is located, the corresponding protective measures, e.g., the forced triggering the by-pass gap, etc., is the effective approach to avoid the appearance of excessing level of transient recovery voltageand oversize coupling current.

文章结合我国南方电网河池固定串补及平果可控串补工程，对超高压输电线路装设串联电容补偿装置后的系统状况进行了比较深入的研究，指出一些系统问题，如过电压水平升高、潜供电流增大和可能发生的次同步谐振均源于串联电容补偿装置的固有特性，通过研究认为当串补所在输电线路发生内部故障时，采取强制触发旁路间隙等保护措施，是避免出现系统恢复电压水平超标和潜供电流增大等问题的有效途径。

The movement order is that the bag-catcher of the automatic bag-giving device sucks the empty bags on the first stack through the vacuum sucker and lifts it, with the clamping jaw of the clamping tower clamping the lifted empty bag and towing it on the bag-bearing platform of the bag-giving device. The bag central locator locates the empty bag into the center. Then the empty bag held in the center is moved horizontal and sent to the position of the bag-giving manipulator through the bag-shifting pressing wheel downward and bag-shifting synchronous belt.

其动作顺序为自动上袋装置的取袋器通过真空吸盘吸住供袋架上第一垛位的空袋并提起，夹拖器夹爪将提起的空袋夹住并拖至上袋装置支座架平台上，袋子对中器把空袋对中至中央位置，移袋压轮向下和移袋同步带把压持在中间的空袋平移送至上袋机械手位置。

The interharmonic sources in power system are analyzed,such as converter equipment,fluctuating load,ferro-resonance,synchronous regulator cascade and induction motor. Its harms are expounded,including waveform distortion,light flicker and influences on measuring instrument,motor and power factor.

分析了电力系统中各种间谐波源，包括变频装置、波动负荷、铁磁谐振、同步串级调速装置及感应电动机，阐述了间谐波的各种危害，如波形畸变、灯光闪烁及对测量仪表、电动机、功率因数的影响。

The paper verified the rationality and superiority for the long distance visual micrometer using on the numerical control machine by analyzing the relative merits of position detectors that commonly used like inductosyns, coders and rasters.

文章通过分析数控机床常用的位置检测装置（感应同步器、编码器、光栅）的优缺点，充分验证了视觉型长值千分尺应用与位置检测装置的合理性及优势。

Company's products are as follows: 1, AC-DC transformer test, the control box and console, high-voltage direct current generator, high-current generator, the third-harmonic power generator , AC-DC high-pressure measuring device, dry-type isolation transformers. 2, MOA tester, relay calibrator, DC Resistance Tester, insulating oil dielectric strength tester, dielectric loss tester, insulating oil dielectric loss tester, transformers containing a switch tester. 3, clamp-type ground resistance tester, grounding resistance table, insulation resistance tester, switch mechanical properties tester, loop resistance tester, vacuum tester. 4, cable fault Tester (notebook computers, LCD, kinescope three shows), sentinel-synchronous digital, cable identification device, try扎cable, high-voltage integrated devices, underground pipeline detector, cable detector, high pressure Cable Detector, DC Bridge, DC arms Bridge, the PSA than the bridge. 5, the company also several well-known domestic and foreign agents company's products, for example: Japan has legislation (Xinhua shake table 3121,3122,3123,3125), Japan with 000 (high-voltage clamp-type table HCL1000D, HLC9000, HLC5000, etc.), cable Altimeter instrument, laser range finder, non-metallic pipeline positioning system, and so on. N:-yuan power equipment

公司产品如下：1、交直流试验变压器、控制箱及控制台、直流高压发生器、大电流发生器、三倍频电源发生器、交直流高压测量装置、干式隔离变压器。2、氧化锌避雷器测试仪、继电保护校验仪、直流电阻测试仪、绝缘油介电强度测试仪、介质损耗测试仪、绝缘油介质损耗测试仪、变压器有载开关测试仪。3、钳型接地电阻测试仪、接地电阻表、绝缘电阻测试仪、开关机械特性测试仪、回路电阻测试仪、真空度测试仪。4、电缆故障测试仪（笔记本电脑、液晶、显象管三种显示）、数显同步定点仪、电缆识别仪、电缆试扎器、高压一体化装置、地下管线探测仪、电缆探伤仪、高压电缆探伤仪、直流电桥、直流双臂电桥、变压比电桥。5、本公司还代理国内外多家知名公司的产品例如：日本共立（电动摇表3121、3122、3123、3125等）、日本万用（高压钳型表HCL1000D、HLC9000、HLC5000等）、线缆测高仪、激光测距仪、非金属管线定位系统等等。

Then a 690V/200kW three-level inverter of six-phase SM is developed, and experimental results verify the techniques presented in the paper.

作者利用这些技术设计开发了&690V/ 200kW三电平六相同步电机变频调速装置&，并在该装置上进行大量动态和稳态实验研究，取得良好的运行效果。

It can effectively solve the problem of global synchronized checking and self-checking of PMU precision in synchronized measurement networks.

在GPS同步时钟信号协调下，作者提出了利用对晶振信号进行整数分频生成PMU异地同步校核基准信号的方法，用于PMU装置的自校核和广域同步校核，彻底解决了广域测量装置无法校核的问题。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。