GB/T 14048.6-2016 PDF English
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Low-voltage switchgear and controlgear -- Part 4-2: Contactors and motor-starters -- AC semiconductor motor controllers and starters (including soft-starters)
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Low-voltage switchgear and controlgear -- Part 4-2: Contactors and motor-starters -- AC semiconductor motor controllers and starters (including soft-starter)
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Low-voltage switchgear and controlgear. Contactors and motor-starters. Section 2: AC semiconductor motor controllers and starters
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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)
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT14048.6-2016
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;
- Correct the typo in 5.7.3 b) "... the value of the maximum tripping time...when
this time exceeds 30 s" to "... the value of the maximum tripping time...when this
time exceeds 40 s", to be consistent with the provisions of the second column in
9.3.3.6.5c).
This document was proposed by China Electrical Equipment Industry Association.
This document shall be under the jurisdiction of National Technical Committee on Low
Voltage Electrical Appliances of Standardization Administration of China (SAC/TC
189).
The drafting organizations of this document. Shanghai Electric Apparatus Research
Institute, Zhejiang Chint Electric Co., Ltd., Changshu Switch Manufacturing Co., Ltd.
(formerly Changshu Switch Factory), Shanghai Electric Co., Ltd. People's Electric
Appliance Factory, Changan Group Co., Ltd., People's Electric Appliance Group Co.,
Ltd., Zhejiang High and Low Voltage Electric Appliances Product Quality Inspection
Center, Shanghai Anyiji Intelligent Control System Co., Ltd., Beijing Institute of
Electrical Technology and Economics of Machinery Industry.
Main drafters of this document. Li Hui, Xu Yuanfeng, Kang Zhihong, Zhou Jianxing,
Xu Linlin, Zhu Minglong, Wang Hua, Xu Qijin, Zhu Xiaoge.
Versions of standard substituted by this document are.
- GB 14048.6-1998, GB 14048.6-2008.
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.
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)
3 Terms, definitions, symbols and abbreviations
switching device designed to make and/or break the current in an electric circuit by
means of the controlled conductivity of a semiconductor
any deliberate operation that causes current changes which must be characterized and
controlled (for example jogging, braking)
4 Classification
Subclause 5.2 gives all data which could be used as criteria for classification.
5 Characteristics of a.c. semiconductor motor controllers and starters
A duty in which the controller or starter remains in the FULL-ON state while carrying
a steady current long enough for the equipment to reach thermal equilibrium, but not
for more than 8 h, without interruption.
Subclause 4.3.4.3 of IEC 60947-1.2007 applies, except that the first paragraph is
changed as follows.
6 Product information
Subclause 5.2 of IEC 60947-1.2007 applies to controllers and starters, with the
following additions.
7 Normal service, mounting and transport conditions
Clause 6 of IEC 60947-1.2007 applies, with the following exceptions.
Unless otherwise stated by the manufacturer, controllers and starters are intended for
use in pollution degree 3 environmental conditions (as defined in 6.1.3.2 of IEC 60947-
1.2007). However, other pollution degrees may be considered to apply, depending upon
the microenvironment.
8 Constructional and performance requirements
Subclause 7.1.2.3 of IEC 60947-1.2007 applies.
Subclause 7.1.8.4 of IEC 60947-1.2007 applies with additional requirements as given
in Annex A.
9 Tests
Special tests comprise verification of co-ordination at the crossover current between the
starter and the SCPD (see Annex C) and those tests covered under 9.1.5.2.
Subclause 8.3.3.3.5 of IEC 60947-1.2007 applies, with the following addition.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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