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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 iden...
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