Voltage levels and regulation, reactive power compensation

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Section 1 General Rules

Power supply and electrical networks. Voltage levels and regulation, reactive power compensation

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Encyclopedia of radio electronics and electrical engineering / Rules for the installation of electrical installations (PUE)

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1.2.22. For electrical networks, technical measures should be provided to ensure the quality of electrical energy in accordance with the requirements of GOST 13109.

1.2.23. Voltage regulation devices must ensure that the voltage on the buses with a voltage of 3-20 kV of power plants and substations to which distribution networks are connected is not lower than 105% of the nominal during the period of the greatest loads and not higher than 100% of the nominal during the period of the least loads of these networks. Deviations from the specified voltage levels must be justified.

1.2.24. The choice and placement of reactive power compensation devices in electrical networks are based on the need to ensure the required network throughput in normal and post-accident modes while maintaining the required voltage levels and stability margins.

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