Accounting for electricity. Technical accounting

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Section 1 General Rules

Accounting for electricity. Technical accounting

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

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1.5.39. At thermal and nuclear power plants with units (units) that are not equipped with information or control computers, stationary or portable inventory meters for technical accounting in the SN system should be installed in order to be able to calculate technical and economic indicators. In this case, the installation of active electricity meters should be carried out in the circuits of electric motors powered from the buses of the main voltage switchgear (above 1 kV) for auxiliary needs, and in the circuits of all transformers powered from these buses.

1.5.40. At power plants with cross connections (having a common steam line), it must be provided on the generator voltage side of the transformers exceeding the technical possibility of installing (under operating conditions) meters for technical metering of active electricity, used to monitor the correct operation of the calculated generator meters.

1.5.41. Active electricity meters for technical accounting should be installed at substations with a voltage of 35 kV and above power systems: on the medium and low voltage sides of power transformers; on each outgoing power transmission line of 6 kV and above, which is on the balance of the power system.

Reactive electricity meters for technical accounting should be installed on the medium and low voltage sides of power transformers of substations of 35 kV and above power systems.

The specified requirements for the installation of electricity meters are subject to implementation as meters are provided.

1.5.42. Enterprises should provide for the technical possibility of installing (under operating conditions) stationary or using inventory portable meters to monitor compliance with energy consumption limits in workshops, production lines, and individual energy-intensive units, to determine energy consumption per unit of product or semi-finished product.

It is allowed to install technical metering meters at the input of an enterprise if settlement accounting with this enterprise is carried out using meters installed at substations or power plants of energy systems.

The installation and removal of technical metering meters at enterprises does not require permission from the energy supply organization.

1.5.43. Technical metering devices at enterprises (meters and instrument transformers) must be under the control of consumers themselves and must meet the requirements of 1.5.13 (with the exception of the requirement for a seal from the energy supply organization), 1.5.14 and 1.5.15.

1.5.44. The accuracy classes of meters for technical metering of active electricity must correspond to the values given below:

For power lines with double-sided supply voltage of 220 kV and above, transformers with a capacity of 63 MVA and more	1,0
For other accounting objects	2,0

The accuracy classes of meters for technical metering of reactive electricity can be selected one step lower than the corresponding accuracy class of meters for technical metering of active electricity.

See other articles Section Rules for the installation of electrical installations (PUE).

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