IEC TR 63196:2020 pdf download – Switchgear and controlgear and their assemblies for low voltage – Energy efficiency
3 Terms and definitions For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: • IEC Electropedia: available at http://www.electropedia.org/ • ISO Online browsing platform: available at http://www.iso.org/obp 3.1 energy management coordinated activities directing and controlling the energy use of an entity 3.2 energy management system EnMS set of interrelated or interacting elements to establish an energy policy and energy objectives, and processes and procedures to achieve those objectives [SOURCE: ISO 50001 :201 1 , 3.9]
3.3 energy efficiency EE ratio or other quantitative relationship between an output of performance, service, goods or energy, and an input of energy taking into account the driving parameters and the boundaries Note 1 to entry: Both input and output need to be clearly specified in quantity and quality, and be measurable. EXAMPLE Conversion efficiency; energy required/energy used; output/input; theoretical energy used to operate/energy used to operate. [SOURCE: ISO/IEC 1 3273-1 :201 5, 3.4.1 , modified – Insertion of “taking into account the driving parameters and the boundaries”, symbol “E f ” renamed to “EE”, and “Efficiency conversion energy” renamed to “Conversion efficiency” in example.] 3.4 recovered energy energy that is withdrawn from system energy loss to become applied energy at another energy using system [SOURCE: ISO/IEC 1 3273-1 :201 5, 3.1 .1 1 .2.1 ] 3.5 load electric equipment intended to convert electric energy into another form of energy, for example light, heat, mechanical energy 3.6 peak shaving process in an electrical system intended to not exceed a maximum overall energy demand Note 1 to entry: Peak shaving can be obtained by planning of energy needs within the manufacturing system or load shedding or autonomous energy production. [SOURCE: IEC TR 62837:201 3, 3.3.8] 3.7 load shedding process of deliberately disconnecting preselected loads from a power system in order to maintain a certain performance level [SOURCE: IEC 60050-603:1 986, 603-04-32, modified – “the integrity of the remainder of the system” replaced by “a certain performance level”.] 3.8 energy performance measurable results related to energy efficiency, energy use and energy consumption Note 1 to entry: Energy performance can be improved by reducing the energy consumption and/or improving the energy efficiency. [SOURCE: ISO/IEC 1 3273-1 :201 5, 3.3.1 , modified – New Note 1 to entry.] 3.9 energy efficiency improvement increase in energy efficiency as a result of technological, design, behavioural or economic changes
3.1 0 energy policy statement by the organization of its overall intentions and direction of an organization related to its energy performance, as formally expressed by top management Note 1 to entry: The energy policy provides a framework for action and for the setting of energy objectives and energy targets. [SOURCE: ISO 50001 :201 1 , 3.1 4] 3.1 1 energy control centre ECC switchgear and controlgear assembly designed to manage different types of energy sources and/or their loads 4 Contribution of low-voltage switchgear and controlgear and their assemblies to energy efficiency Many energy-efficient technologies and solutions are already available and cost-effective; nevertheless, a lack of awareness may slow down the deployment of these technologies and impedes harvesting their energy efficiency potential. In this context, switchgear and controlgear can be used as resources (see Figure 1 ) for three different roles: 1 ) controlling the electrical (energy-using) loads in an efficient way; 2) source control: selecting, connecting or disconnecting the source of energy, as appropriate; 3) monitoring, measuring, analysing such as: • the availability of energy sources; • the power from each source and the power consumed by each load, including power quality; • sensing other environmental inputs (temperature, overload conditions, etc.).
4 Contribution of low-voltage switchgear and controlgear and their assemblies to energy efficiency Many energy-efficient technologies and solutions are already available and cost-effective; nevertheless, a lack of awareness may slow down the deployment of these technologies and impedes harvesting their energy efficiency potential. In this context, switchgear and controlgear can be used as resources (see Figure 1 ) for three different roles: 1 ) controlling the electrical (energy-using) loads in an efficient way; 2) source control: selecting, connecting or disconnecting the source of energy, as appropriate; 3) monitoring, measuring, analysing such as: • the availability of energy sources; • the power from each source and the power consumed by each load, including power quality; • sensing other environmental inputs (temperature, overload conditions, etc.). 5 General concepts of energy efficiency 5.1 Concept of energy efficiency system 5.1.1 System considerations Energy efficiency relates the output of an activity to its energy input, for a given system. The input can be expressed in various energy units (kWh, etc.), while the output may not be necessarily expressed in energy units and covers a wide range of activities and services,for example controlling a load (switch on/switch off/protect/monitor), providing data, etc. See Figure 2.