查询词典 generator double current

generator transformer unit ; startup failure protection ; negative-sequence current constant value ; open-phase ; setting calculation ; sequence network

因此，现场技术人员对启动失灵保护的负序判据整定依据比较模糊，下面通过计算非全相过程中的负序量进行分析

It also proposes some suggestions on setting calculation of negative-sequence current for startup failure protection,and attentions on open phase of generator transformer unit.

通过查阅几家国内比较大的继电保护厂家的技术说明书，其中要求启动失灵保护的负序判据按照0.1～0.2倍的额定电流整定，CT取自断路器主变高压侧，再无其他要求说明。

By the conventional unsymmetrical method and its negative-sequence network of fault calculation,this paper calculates negative-sequence current in open phase with one phase open or one phase closed of generator transformer broken.

1问题的提出目前国内从事发电的继电保护技术人员针对发变组启动失灵保护负序判据整定各有不同的看法，主要是需要考虑在启停机过程发生非全相失灵的情况。

With TUSA, the vortex generator which from the past in the wing and the racing car of the airplane is installed for preventing the air current exfoliation it applied then.

与TUSA，从过去在翼和飞机赛车被安装为防止气流剥落的漩涡发电器它然后申请了。

Main products has: Entire voluntarily burn oil hot wind machine , full-automatic fire coal hot wind machine , semi-automatic fire coal hot wind machine , wet curtain , large-scale wind machine (be used for the factory, raise livestock , flowers and plants waits for lieu to cool down , is ventilated), greenhouse special use circular current wind machine , axial-flow type ventilating machine , carbon dioxide generator , plant diseases and insect pests ozone prevention and cure machine after eight big series more than 30 species products.

主要产品有：全自动燃油热风机，全自动燃煤热风机、半自动燃煤热风机、湿帘、大型风机（可用于工厂、畜牧、花卉等场所降温、通风）、温室专用环流风机、轴流式通风机、二氧化碳发生器、病虫害臭氧防治机等八大系列三十多种产品。ZR系列风机具有先进的整体集流器设计与一次成型热镀锌铝板扇叶，具有低噪音、高节能、耐腐蚀、运行平稳，寿命长等特点。产品畅销北京、上海、广东、云南、辽宁、湖南、湖北、河北、江苏、浙江等20多个省、市、自治区，以过硬的质量和良好的售后服务，赢得了专家的好评及广大用户的信赖。

Analyses the formation and essence of iron loss on electrical machine,discusses the demagnetization principle of armature reaction of direct current machine,specifies the implication of parallel operation of synchronization generator by quasi-synchronous method,thereby understands relative concepts deeply.

分析了电机中铁心损耗的形成机理及其本质，讨论了直流电机电枢反应的去磁机理，明确了同步发电机准同期并列的含义，从而深刻理解有关基本概念。

Mainly engaged in the project are: 1, lithium battery protection board, power type (power tools, electric vehicles, model aircraft) lithium battery protection board; 2, switching power supply, adapters, chargers; 3, high power audio, amplifier, communications power inverter power supply; 4, solar cells program, program charger, portable power supply; 5, special power supply / power supply, as well as smart power management system; 6, LED drivers, all kinds of high-frequency electronic circuit design, update problem-solving / Circuit Design and so on; Electronics 8514C has°load, four-channel Tektronix TDS2014B Oscilloscopes, Tektronix Current Probe, Power Instrument / high voltage tester, spectrum analyzer proposed, frequency meter, signal generator, the high and low temperature environment for the control room and other advanced equipment and a group of highly professional and well-motivated research in science and technology, design professionals; have the ability to achieve all-round, the perfect integration services.

主要经营项目有：1、锂电池保护板、动力类（电动工具、电动车、航模）类锂电池保护板；2、开关电源、适配器、充电器；3、大功率音响、功放、通讯电源、逆变电源；4、太阳能电池方案、充电器方案、便携电源；5、特种电源/智能电源以及电源管理系统；6、LED驱动，各种高频电子电路的设计，更新解难/电路设计等；公司拥有艾德克斯8514C电子负载、泰克TDS2014B四通道示波器、泰克电流探头、功率仪/高压测试仪、频谱分析议、频率计、信号发生器、高低温环境控制室等先进设备和一批专业素质高、干劲十足的科研技术、设计人才；有能力做到全方位、一体化的完美服务。

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

This series of instruments for low-voltage, medium voltage, high-voltage switchgear and distribution systems, central station monitoring system, generator set systems, building automation systems, energy management system, such as factories, able to measure three-phase three-wire, three-phase four-wire system current, voltage, active power, reactive power, apparent power, active power, reactive power, power factor, frequency, voltage triangular openings, the largest open-shaped voltage power parameters, at the same time with a remote, remote control function.

该系列 仪表适用于低压、中压、高压开关和配电系统、中心电站监测系统、发电机组系统、楼宇自控系统、工厂能量管理系统等，能够测三相三线，三相四线系统的电流、电压、有功功率、无功功率、视在功率、有功电能、无功电能、功率因数、频率、开口三角形电压、最大开口形电压等电力参数，同时带有遥信、遥控功能。

A power electronic interface between generator and battery is studied and manufactured to improve the running performance of current small-scaled wind energy conversion system and solve the problems that available system has to a certain extent.

本文的主要工作是研制了介于发电机和蓄电池之间的电力电子接口以控制整个风电系统能量转换过程，在一定程度上解决现有系统存在的问题，从而提高系统的整体运行性能。

The changes of the HAF after liver injury may be related to the volume of blood loss, the intraabdominal pressure and the pneumoperitoneum duration.

肝撞击伤伴失血后肝动脉血流量的变化与失血量、气腹压力以及气腹持续时间等有密切联系。

Reneging on our commitments to the world's poor cannot be an austerity measure, she said.

放弃我们给世界上的穷国的承诺不能成为一种紧缩措施。