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GB/T 14048.6-2016 English PDF (GBT14048.6-2016)

GB/T 14048.6-2016 English PDF (GBT14048.6-2016)

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GB/T 14048.6-2016: Low-voltage switchgear and controlgear -- Part 4-2: Contactors and motor-starters -- AC semiconductor motor controllers and starters (including soft-starters)

GB/T 14048.6-2016
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.120.40
K 31
GB/T 14048.6-2016 / IEC 60947-4-2.2011
Replacing GB 14048.6-2008
Low-voltage switchgear and control gear - Part 4-2.
Contactors and motor-starters - AC semiconductor motor
controllers and starters (including soft-starters)
(IEC 60947-4-2.2011, IDT)
ISSUED ON. AUGUST 29, 2016
IMPLEMENTED ON. MARCH 01, 2017
Issued by. General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword... 4
Introduction... 8
1 Scope... 9
2 Normative references... 10
3 Terms, definitions, symbols and abbreviations... 11
3.1 General... 11
3.2 Terms and definitions concerning a.c. semiconductor motor controllers and starters 11 3.3 Terms and definitions concerning hybrid motor controllers and starters... 14 3.4 Terms and definitions concerning EMC definitions... 18
3.5 Symbols and abbreviations... 20
4 Classification... 20
5 Characteristics of a.c. semiconductor motor controllers and starters... 20 5.1 Summary of characteristics... 20
5.2 Type of equipment... 21
5.3 Rated and limiting values for main circuits... 23
5.4 Utilization category... 27
5.5 Control circuits... 28
5.6 Auxiliary circuits... 29
5.7 Characteristics of relays and releases (overload relays)... 29
5.8 Co-ordination with short-circuit protective devices (SCPD)... 32
6 Product information... 32
6.1 Nature of information... 32
6.2 Marking... 34
6.3 Instructions for installation, operation, and maintenance... 34
7 Normal service, mounting and transport conditions... 35
7.1 Normal service conditions... 35
7.2 Conditions during transport and storage... 36
7.3 Mounting... 36
7.4 Electrical system disturbances and influences... 36
8 Constructional and performance requirements... 36
8.1 Constructional requirements... 36
8.2 Performance requirements... 37
8.3 EMC requirements... 54
9 Tests... 57
9.1 Kinds of tests... 57
9.2 Compliance with constructional requirements... 59
9.3 Compliance with performance requirements... 59
Annex A (normative) Marking and identification of terminals... 83
Annex B (BLANK)... 87
Annex C (normative) Co-ordination at the crossover current between the starter and associated SCPD... 88
Annex D (BLANK)... 93
Annex E (BLANK)... 94
Annex F (informative) Operating capability... 95
Annex G (informative) Examples of control circuit configurations... 98 Annex H (BLANK)... 100
Annex I (normative) Modified test circuit for short-circuit testing of semiconductor motor controllers and starters... 101
Annex J (informative) Flowchart for constructing bypassed semiconductor controllers tests... 103
Annex K (normative) Extended functions within electronic overload relays... 104 Bibliography... 109
Foreword
GB 14048 "Low-voltage switchgear and control gear" contains the following parts at present.
- Part 1.General rules;
- Part 2.Circuit-breakers;
- Part 3.Switches, disconnectors, switch-disconnectors and fuse-combination units; - Part 4-1.Contactors and motor-starters - Electromechanical contactors and motor- starters (Including motor protector);
- Part 4-2.Contactors and motor-starters - AC semiconductor motor controllers and starters (including soft-starters);
- Part 4-3.Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads;
- Part 5-1.Control circuit devices and switching element - Electromechanical control circuit devices;
- Part 5-2.Control circuit devices and switching elements - Proximity switches; - Part 5-3.Control circuit devices and switching elements - Requirements for proximity devices with defined behaviour under fault conditions (PDDB); - Part 5-4.Control circuit devices and switching elements - Method of assessing the performance of low-energy contacts - Special tests;
- Part 5-5.Control circuit devices and switching elements - Electrical emergency stop device with mechanical latching function;
- Part 5-6.Control circuit devices and switching elements - DC interface for proximity sensors and switching amplifiers (NAMUR);
- Part 5-7.Control circuit devices and switching elements - Requirements for proximity devices with analog output;
- Part 5-8.Control circuit devices and switching elements - Three-position enable switch;
- Part 5-9.Control circuit devices and switching elements - Flow switch; - Part 6-1.Multiple function equipment - Transfer switching equipment;
- Part 6-2.Multiple function equipment - Control and protection switching appliances (equipment) (CPS);
- Part 7-1.Ancillary equipment - Terminal blocks for copper conductors; - Part 7-2.Ancillary equipment - Protective conductor terminal blocks for copper conductors;
- Part 7-3.Ancillary equipment - Safety requirements for fuse terminal blocks; - Part 8.Control units for built-in thermal protection (PTC) for rotating electrical machines.
This Part is Part 4-2 of GB 14048.The reference number is GB/T 14048.6. This Part was drafted in accordance with the rules given in GB/T 1.1-2009. This Part replaces GB 14048.6-2008 "Low-voltage switchgear and control gear - Part 4-2.Contactors and motor-starters - AC semiconductor motor controllers and starters (including soft-starter)". Compared with GB 14048.6-2008, in addition to some changes in the text, the main changes are as follows.
- Modify the standard's name;
- In Chapter 3, add terms and definitions. semiconductor switching device, prospective current (of a circuit and with respect to a switching device), under- voltage relay or release, under-current relay or release, stall sensitive electronic overload relay, jam sensitive electronic overload relay, CO operation, O operation, as well as the list of symbols and abbreviations;
- Delete relevant requirements for characteristics (5.1), marking (6.1) and performance (8.2.6) of "on-off operation overvoltage";
- To be consistent with the latest requirements of GB 14048.4, improve the characteristic requirements of overload relays; in Table 4, add overload tripping classes and associated tripping time;
- Modify the characteristic requirements for overload relays; Specify the requirement in 5.7.3b) "the maximum tripping time exceeding 40s";
- Modify the criteria for test results for blocking and commutating capability in Table 18;
- Add performance requirements and test methods for under-current relay or release, stall sensitive electronic overload relay, jam sensitive electronic overload relay; - Modify the limit requirements of the EMC test, to be consistent with the requirements of relevant EMC standards;
- Delete Annex B (normative) Overload relays and releases. Put the relevant content into the text;
- Modify Annex C (normative) Co-ordination at the crossover current between the starter and associated SCPD, to be consistent with the relevant requirements of Annex B of GB14048.4;
- Delete Annex D (normative) Requirements for radiated emission tests;
- Delete Annex E (informative) Method for converting radiated emission limit in GB 4824 to equivalent value of emission power;
- Delete Annex H (informative) Terms item agreed by user and manufacturer; - Add Annex K (normative) Extended functions within electronic overload relays. This Part uses translation method to identically adopt IEC 60947-4-2.2011 (Edition 3.0) "Low-voltage switchgear and control gear - Part 4-2.Contactors and motor-starters - AC semiconductor motor controllers and starters".
The Chinese documents which have consistency with the international normative references in this Part are as follows.
- GB 755-2008, Rotating electrical machines - Rating and performance (IEC 60034- 1.2004, IDT);
- GB 14048.1-2012, Low-voltage switchgear and control gear - Part 1.General rules (IEC 60947-1.2011, MOD);
- GB/T16935 (all parts), Insulation coordination for equipment within low-voltage systems [IEC 60664 (all parts)];
- GB/T17626 (all parts), Electromagnetic compatibility - Testing and measurement techniques [IEC 61000-4 (all parts)].
This part has made the following editorial changes according to the specific situation of China.
- IEC 60410.1973 "Sampling plans and procedures for inspection by attributes" is currently abolished. In the revision documents of the relevant standards of IEC SC121A, the reference document for this technical content has been changed to ISO 2859-1.Its corresponding national standard is GB/T 2828.1-2012 "Sampling procedures for inspection by attributes - Part 1.Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection". Therefore, in this Part, it uses national standard GB/T 2828.1-2012 as reference;
- Delete the alphabetical index of terms in 3.2 of IEC 60947-4-2.2011.Adjust the subsequent clauses accordingly in this Part;
Low-voltage switchgear and control gear - Part 4-2.
Contactors and motor-starters - AC semiconductor motor
controllers and starters (including soft-starters)
1 Scope
This Part of GB/T 14048 applies to a.c. semiconductor motor controllers and starters, which may include a series mechanical switching device, intended to be connected to circuits, the rated voltage of which does not exceed 1000 V a.c.
This Part characterizes a.c. semiconductor motor controllers and starters with and without bypass means.
AC semiconductor motor controllers and starters dealt with in this Part are not normally designed to interrupt short-circuit currents. Therefore, suitable short-circuit protection (see 8.2.5) shall form part of the installation, but not necessarily of the a.c. semiconductor motor controller or starter.
In this context, this Part gives requirements for a.c. semiconductor motor controllers and starters associated with separate short-circuit protective devices. This Part does not apply to
- continuous operation of a.c. motors at motor speeds other than the normal speed; - semiconductor equipment, including semiconductor contactors (see 2.2.13 of IEC 60947-1.2007) controlling non-motor loads;
- electronic a.c. power controllers covered by IEC 60146 series.
Contactors, overload relays and control circuit devices used in a.c. semiconductor motor controllers and starters shall comply with the requirements of their relevant product standard. Where mechanical switching devices are used, they shall meet the requirements of their own IEC product standard, and the additional requirements of this Part.
The object of this Part is to state as follows.
- the characteristics of a.c. semiconductor motor controllers and starters and associated equipment;
- the conditions with which a.c. semiconductor motor controllers and starters comply with reference to
• their operation and behaviour;
• their dielectric properties;
• the degrees of protection provided by their enclosures where applicable; • their construction;
- the tests intended for confirming that these conditions have been met, and the methods to be adopted for these tests;
- the information to be given with the equipment, or in the manufacturer's literature. NOTE. For the purpose of this Part, the term "controller" may be used instead of "a.c. semiconductor motor controller".
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 2828.1-2012, Sampling procedures for inspection by attributes - Part 1. Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection (ISO 2859-1.1999, IDT)
GB 4824-2013, Industrial, scientific and medical (ISM) radio-frequency equipment - Disturbance characteristics - Limits and methods of measurement (CISPR 11.2010, IDT)
GB/T 11021-2014, Electrical insulation - Thermal evaluation and designation (IEC 60085.2007, IDT)
GB 13539.1-2015, Low-voltage fuses - Part 1.General requirements (IEC 60269- 1.2009, IDT)
IEC 60034-1.2010, Rotating electrical machines - Part 1.Rating and performance IEC60664 (all parts), Insulation coordination for equipment within low-voltage systems
IEC 60947-1.2007, Low-voltage switch gear and control gear - Part 1.General rules
IEC 61000-4 (all parts), Electromagnetic compatibility (EMC) - Part 4.Testing and measurement techniques

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