There are many electric energy quality problems in power supply and distribution system.

供配电系统中存在着各种电能质量问题。

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The power supply and distribution system design includes power supply design and load calculation.

供配电系统设计包括：供配电设计和负荷计算。

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Scope This manual describes protection techniques for electrical power supply and distribution systems.

范围本手册介绍了电力供应和分配系统的保护技术。

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Northern Ireland Electricity was floated on the Stock Exchange and retained responsibility for transmission, distribution and the supply of power.

BBC: A highly charged debate

Electrical power is necessary to support other critical infrastructures, including supply and distribution of water, food, fuel, communications, transport, financial transactions, emergency services, government services, and all other infrastructures supporting the national economy and welfare.

FORBES: 'Revolution' Depicts America After an EMP Blast: But Is It Plausible?

The combination of tight supply, dodgy municipal distribution and regulatory uncertainty should power sales of private generators for some time.

ECONOMIST: Electricity in South Africa: Power struggle | The