电网

The line loss of 10KV distribution networks is the major part of total line loss.

在电力网线损构成中，10KV配电网线损占全部线损的主要部分。

Therefore, line loss calculation and reasonable reducing loss measures are very profound.

因此，进行配电网的理论线损计算，采用合理方法降低损耗具有重要意义。

This paper discusses synchronization problems which L90 line differential relay loss packets and the key operation mode and method in line differential with telecommunication system.

论文通过对华北电网 5 0 0kV线路纵联差动保护装置通信故障的分析，提出了故障的解决方案，并着重讨论了复用保护应用中的同步问题。

Firstly, the realizable ways of signal detection and sample、 power circuit and the application of low-consumption model of MSP430 are discussed, by which the required function of current protection and voltage protection can be realized. Secondly, different protection algorithm based on micro-computer are discussed in this article, and from the virtues and defects of Fourier algorithm, an improved algorithm is put forward, and the importance of the improved algorithm is displaced. Thirdly, according to the national standard of GB/T18858 .3-2002, the principle of networklization of intelligence trip relay and how to realize it are mentioned. Lastly, using the current conditions, the test of precision is done. The experimental date present that the system is working well and can realize the real-time function of on-line detection.

首先在硬件设计上，对于信号检测、处理、电源电路、MSP430系列单片机的低功耗方式应用以及人机接口电路等问题提出了实现方法，基本实现了大范围电流、电压信号实时监控等功能；其次，本文还对当前各种微机保护算法进行了介绍，分析了傅立叶算法在实现智能脱扣器保护功能中的优缺点，并针对傅立叶算法中计算偏于复杂的问题对该算法进行了改进，提出了基于FFT的改进算法，通过算法的分析和比较，对改进算法的性能给出了评价；然后结合我国现场总线国家标准GB/T18858.3-2002讨论了DeviceNet现场总线在实现脱扣器网络化的原理，实现方法，论述了通讯接口电路的设计；最后利用现有条件，对装置进行了性能测试，试验数据说明系统工作状态较好，可以满足低压配电网自动化对低压脱扣器的各项要求。

To satisfy the demand of selective protection of low-voltage power network and increasing the competition of new product, it is very important to design the intelligence trip relay with full protection ability and acceptable price.

为了满足电网选择性保护的需要，适应市场需求及提高产品竞争力，设计出保护功能完善、性价比高的智能脱扣器具有重要的应用价值。

XGN15-12F Tank-type metal-clad ring switchgear is the new high-voltage switchgear manufactured for city electrict net.

XGN15-12F 型箱式金属封闭环网开关设备，是为城市电网改造和建设需要而生产的新型高压开关柜。

Combined with present situation on overcurrent protection of low voltage electrified wire netting in mine,analysed several reasons on appeared mis-start or refuse-start of overcurrent protection in mine,thus provided some concrete arguments for research workers and users of overcurrent protection .

结合目前井下低压电网过流保护的现状，探讨了井下过流保护出现误动与拒动的诸多原因，以便给采用新原理的过流保护的研究者和改进现有过流保护的使用者提供一些具体的论据。

The idea is to operate two aircraft for a week, to a detailed Grid Pattern provided by recognised yachtsmen who are world class navigators and who have experience in plotting drift patterns, and routing.

经营理念是一个星期两班航机，电网格局提供了详细确认那些世界级领航员和游艇曾密谋漂流经验模式和路由。

The Act provides more than $60 billion for clean energy, including $11 billion to make our electrical grid smarter and connect it to sources of renewable power,$2 billion in competitive grants for battery research and development,$5 billion to weatherize low-income homes,$3.4 billion for carbon capture and storage,$4.5 billion to improve the energy efficiency of federal buildings the list goes on.

该法案向清洁能源领域提供600多亿美元，其中包括用110亿美元来改进我们的电网，将其与可再生电力资源相连接，将 20亿美元作为竞争性拨款用于电池的研究与发展，用50亿美元来为低收入家庭进行节能改造，将34亿美元用于捕获和储存碳，将45亿美元用于提高联邦大楼的能源效率--这样的例子不胜枚举。

The company product has more than 100 serieses totally, more than 18000 species specification, all products have already pass national compulsory CCC attestation, parts of products pass CE attestation in Europe, the German GS attestation...etc., The product from the Chinese people insurance company product the quantity responsibility the stand as guarantor, the electric leakage chopper series ,department of national power company recommends the product, the electric power form the department as the national economic trade, the water conservancy electric power department, the company combine to be list as the oil- field of Ta- ching provides the member unit.

公司产品共有100多个系列，18000多个品种规格，全部产品已通过国家强制性CCC认证，部分产品通过欧共体CE认证、德国GS认证等，产品由中国人民保险公司产品质量责任承保，其中生产的漏电断路器系列系国家电力公司农村电网改造推荐产品，电能表系列被列为国家经贸、水利电力部入网推荐产品，公司并被列为大庆油田供应成员单位。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。