M00051182
New product
CSA C22.2 NO. 272:14 (R2019) Wind turbine electrical systems
standard by CSA Group, 08/01/2014
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Availability date: 01/10/2022
(reaffirmed 2019)
Technical Committee on Wind Turbines 5
Subcommittee on Wind Turbines — Electrical Qualification 9
Preface 11
Scope 12
Reference publications 13
Definitions 18
General requirements 19
General 19
Components 19
General 19
Wiring 20
Busways 20
Cabletrays 20
Wireways and auxiliary gutters 20
Cablebus 20
Switchgear and controlgear 21
Switchboards 21
Panel boards 21
Control panels 21
Transformers 21
Converter/inverter 21
Slip ring 21
Lighting 22
Gearbox 23
Hoists and winches 23
Fire protection 23
Heating and cooling equipment 23
Electro-hydraulic components 23
Motors and generators 24
Batteries 24
Capacitors 24
Uninterruptible power supplies 24
Disconnecting means 24
Safety related control systems 25
Control and protection system 25
Control function 25
Protection function 25
Equivalency 26
Hub 26
Grid or external supply disconnection devices and conductor terminations 27
Supply conductor terminations 27
Small wind turbine disconnecting means 27
Large wind turbine disconnecting means 27
Supply disconnecting devices 28
General 28
Type 28
Requirements 28
Protection against electric shock 29
General 29
Basic protection (protection against direct contact) 29
General 29
Protection by enclosures 29
Fault protection (protection against indirect contact) 29
Protection of equipment 30
General 30
Motors 30
Overcurrent protection 30
General 30
Supplementary protectors 31
Protective devices 31
Transformer protection 31
Internal conductors 32
Industrial control equipment for use as service equipment 32
Overcurrent protection 32
Overload and overheating protection 33
Generator overspeed protection 33
Protection against overvoltages due to lightning and switching surges 33
Protection for motor enclosures and mounting 33
Protective devices for brakes 34
Grid requirements 34
Cable twist 34
Grounding and bonding 34
Operator interface 35
General 35
General device requirements 35
Location and mounting 35
Position sensors 35
Portable and pendant control stations 35
Push-buttons 35
Colours 35
Markings 36
Indicator lights and displays 36
General 36
Colours 36
Flashing lights and displays 37
Illuminated push-buttons 37
Rotary control devices 37
Start devices 37
Emergency stop devices 37
Enabling control device 38
Conductors and cables 38
Conductors 38
Wire and cables without enclosed raceways 39
Cables 39
Cable selection and management 39
General 39
Interconnections 39
Internal wiring 40
Cables rated 2000 V or greater 41
Conductor materials 41
Cable splices and connections 41
General 41
Conductor splice rating 41
Tests 42
Connection and splice requirements for circuits rated over 1000 volts 42
Ampacity 42
General 42
Conductor ampacity Method A — Calculations 43
Conductor ampacity Method A — Temperature rise test 44
Wiring methods 46
Cable management 46
Connections 46
Cable mechanical protection 47
Wiring outside enclosures 47
General requirements 47
External ducts 48
Connection to moving elements of the wind turbine 48
Working spaces 49
Accessories 49
Lighting 49
Receptacles 49
Ground fault circuit interruption protection 49
Energy storage 50
Batteries 50
13.3.3 Mounting of energy storage devices 50
13.4 Electrical qualification of man-lifts 50
Markings, warning signs, and equipment identification 50
General 50
Nameplate markings 50
Warnings/cautions 51
Nameplate materials and construction 51
Identification of equipment 52
Working space 52
Fuse replacement markings 52
Disconnecting means 52
Receptacles for use as disconnecting means 52
Technical documentation 53
General 53
Information to be provided 53
Installation documents 53
Overview diagrams and function diagrams 54
Circuit diagrams 54
Operating manual 55
Maintenance manual 55
Parts list 55
CSA C22.2 No. 272:14
1.1
This Standard applies to complete wind turbine electrical systems and associated electrical equipment intended for connection at not more than 46 kV and intended for use in accordance with the Canadian Electrical Code, Part I. Products covered by the scope of this Standard are subject to the requirements of CAN/CSA C22.2 No. 0.
1.2
This Standard applies to wind turbines of all sizes.
1.3
This Standard does not apply to performance with respect to grid codes or to power performance of wind turbines.
Note: Information on test methods for power performance of wind turbines can be found in CAN/CSA C61400-12-1 and IEC 61400-12-2.
1.4
In this Standard, “shall” is used to express a requirement, i.e. a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements.
Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
1.5
The values given in SI (metric) units are the standard. The values given in parentheses are for information only.