查询词典 frequency relay

The Company mainly operates and acts as the agent for the following products including:frequency conversion cabinet,frequency converter,soft starter,automated control system,series of low-voltage circuit breaker,contactor,control relay,protective relay,knife switch,isolating switch,capacitor,dual power switching unit,low-voltage mutual inductor,low-voltage fuse,high-voltage vacuum circuit breaker,high-voltage mutual inductor,high-voltage load switch,high-voltage fuse,microcomputer integrated protection device and components and parts including automatic control products, Lights,button,terminal,electric meters and electromechanical products including pump,valve fan,motor,voltage transformer,wires and cables.

公司主要经营及代理的产品有：变频柜、变频器、软启动器、自动化控制系列及系列低压断路器、接器、控制继电器、保护继电器、刀开关、隔离开关、电容器、双电源切换装置、高压真空断路器、高低压互感器、高压负荷开关、高低压熔断器、微机综合保护装置及自动化控制产品、信号灯、按钮、端子、电度表等元器件及水泵、阀门、风机、电机、变压器、电线电缆等机电产品约1000多个品种、20000余种常用规格。

In this scheme, four PLLs are set in the condition of relay for frequency output.The frequency transform time is greatly compressed by the alternate work of four PLLs in comparison with the hop time for frequency transformation of a single PPL.

在本方案中，运用了四个锁相环进行接力式的频率输出，通过四个锁相环的交替工作，使得频率输出改变的时间较之通过单个锁相环改变锁相频率的跳频时间获得了大幅度的压缩。

The relay adopts orthogonal frequency division multiplexing for transmission, symbols in the same carriers are forwarded by the relay STBC cooperation, and BF is executed between antennas of the relay.

中继采用正交频分复用传输，相同载波上的符号由不同中继通过空时分组码协作进行转发，同一中继内的天线间进行波束成形。

This paper analyzes the influence of TCSC on the power frequency fault component protection including directional negative/zero sequence power relay, power frequency fault component distance relay, and directional power frequency fault component relay.

摘 要 分析了TCSC 对故障分量保护包括负序功率方向保护、工频故障分量距离保护及工频故障分量方向保护的影响，认为：与常规串联补偿线路上的保护相比，在TCSC线路上故障分量保护的性能不会降低。

This article introduces the new principles of digital proctection for generator transformer unit ,including deviation of power frequency percentage differential relay, variable slope percentage differential relay, asynchronous method of TA saturation recognition, current percentage restricted stator inter-turn relay, etc.

介绍了大型发电机变压器组装置的几项保护新原理，包括发电机工频变化量比率差动、变斜率比率差动、异步法TA饱和判别、电流比率制动匝间保护等。

Agent products (1) Panasonic signal relays, automotive relays, high frequency relays, Power Relay, PHOTO MOS relay, SSR solid state relays, industrial relays, etc. a full range of relays.

代理产品为（1）松下信号继电器、汽车继电器、高频继电器、功率继电器、PHOTO MOS继电器、SSR固态继电器、工控继电器等全系列继电器。

The device adopts 80C196 microprocessor as the CPU of relay; the frequency measurement unit employs hardware to measure frequency, the measurement precision is higher; the under-frequency disconnection unit has perfect, reliable blocking measure to prevent mal-operation; the under-voltage disconnect unit has reliable criteria to detect three phase voltage failure.

采用80C196高性能快速单片机为保护CPU，频率测量单元运用硬件测频，测量精度高；低周解列单元设有完善可靠的防止误动作的闭锁措施；低压解列单元具有可靠的三相TV断线闭锁判据。

PYX1-S type signal power supply panel is a special equipment for eight in formation automatic block with audio frequency shift modulated track circuits.It can supply power for signal lighting,track circuit,audio frequency shift relay circuit,approaching circuit,audio frequency shift control and detecting circuit.

PYX1-S型八信息移频电源屏是八信息自动闭塞的配套设备，可为信号点灯、轨道电路、移频继电器电路、接近电路移频控制检测电路提供电源。

The main products TQSW no local place-frequency electrical impulse voltage testing transformer test sets of series resonant frequency generator unit test transformer dry-type high-voltage testing transformer the ball-gap discharge frequency divider DC High-frequency DC generator, generator, inverter-current multi-function grounding impedance test system-current generator (up-flow device) performance of an integrated test bed Transformer Partial Discharge Detector mechanical properties of high-voltage switches Vacuum Tester Tester Tester Loop Resistance transformer capacity Tester-Load Switching Test Transformer tumor resistance measurement Transformer turns ratio tester tester MOA group tester insulating oil dielectric strength tester transformer loss parameter Intelligent Tester transformer loss-line parameter tester frequency interference dielectric loss dielectric loss tester anti-interference relay tester Ground Yin Xiaxian conduction tester cable fault tester tester tester generator rotor impedance large Grounding Resistance Tester Tester transformer features an integrated micro-moisture meter aperture automatic flash point tester Automatic Closed flash point detector vacuum oil filter boots pressure test device (automatic, semi-automatic) nuclear phase Instrument Series wireless digital core Instrument security tools relative to the mechanical properties testing machine clamp grounding resistance of grounding resistance measuring instrument digital megger digital high-voltage insulation resistance tester and a scalable high-altitude test tools, digital dual-phase volt-ampere facade sequence table clamp Three-phase Power Parameters Tester Calibrator lightning strike counter dedicated test wire, clamping insulation boards, pipe, cable tray mats polyimide film conductor line busbar electric appliances

扬州市苏博电气有限公司扬州市苏博电气有限公司主要产品有TQSW无局部放电工频试验变压器冲击电压发生器变频串联谐振试验成套装置试验变压器干式试验变压器高压分压器放电球隙中频直流发生器高频直流发生器变频大电流多功能接地阻抗测试系统大电流发生器变压器性能综合测试台局部放电检测仪高压开关机械特性测试仪真空度测试仪回路电阻测试仪变压器容量测试仪变压器有载开关测试仪变压器肿瘤电阻测试仪变压器变比组别测试仪氧化锌避雷器测试仪绝缘油介电强度测试仪变压器损耗参数智能测试仪变压器损耗线路参数综合测试仪变频抗干扰介质损耗测试仪抗干扰介质损耗测试仪继电保护测试仪接地引下线导通测试仪电缆故障测试仪发电机转子交流阻抗测试仪大型地网接地电阻测试仪互感器特性综合测试仪微量水分测定仪开口闪点全自动测定仪闭口闪点全自动测定仪真空滤油机绝缘靴耐压试验装置核相仪系列无线数字核相仪安全工具力学性能试验机钳形接地电阻仪接地电阻测量仪数字兆欧表数字高压绝缘电阻测试仪可伸缩高空测试工具数字双钳相位伏安表相序表三相电力参数测试仪雷击计数器校验仪专用测试导线，钳绝缘板，管，垫聚酰亚胺薄膜电缆桥架滑触线母线槽电热电器

Digital Language nuclear phase meter, intelligent dielectric loss test, instrument megger, frequency series resonance test device, grounding resistance tester, transformer load switch tester, the nuclear-phase high-pressure device, vacuum oil filter, clamp grounding resistance instrument, stray current detector, transformer features an integrated tester, cable fault tester, DC resistance tester, digital relay protection tester, automatic transformation ratio tester, relay protection tester, vacuum tester, Loop resistance tester, wireless high-pressure phase of nuclear device, active transformer capacity tester, insulation oil dielectric strength tester, high voltage switch mechanical properties tester, intelligent switching characteristics tester, light-up-flow devices, wireless instrument of nuclear phase, oxidation Zinc arrester tester, high voltage test transformer, DC high-voltage generator, lightning counter checkers, inductive load DC resistance tester, dielectric strength of insulating oil automatic tester, relay protection test chamber, multi-function test bed, IF DC - Generators

数显语言核相仪，智能化介质损耗测试，仪兆欧表，变频串联谐振试验装置，接地电阻测试仪，变压器有载开关测试仪，高压核相仪，真空滤油机，钳形接地电阻仪，杂散电流测定仪，互感器特性综合测试仪，电缆故障测试仪，直流电阻测试仪，微机继电保护测试仪，全自动变比测试仪，继电保护测试仪，真空度测试仪，回路电阻测试仪，高压无线核相仪，有源变压器容量测试仪，绝缘油介电强度测定仪，高压开关机械特性测试仪，智能开关特性测试仪，轻型升流器，无线核相仪，氧化锌避雷器测试仪，高压试验变压器，直流高压发生器，雷击计数器校验器，感性负载直流电阻测试仪，绝缘油介电强度全自动测试仪，继电保护试验箱，多功能测试台，中频直流发生器

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。