AS/NZS IEC 60947.4.2:2015
Low-voltage switchgear and controlgear - Part 4.2: Contactors and motor-starters - AC semiconductor motor controllers and starters
Covers low-voltage a.c. semiconductor motor controllers and starters that have many capabilities and features beyond the simple starting and stopping of an induction motor, such as controlled starting and stopping, manoeuvring and controlled running. The generic term “controller” is used in this standard wherever the unique features of the power semiconductor switching elements are the most significant points of interest. The generic term “starter” is used wherever the consequences of operating the power semiconductor switching elements, together with suitable overload protective means, are the most significant points of interest. Specific designations (for example form 1, form HxB, etc.) are used wherever the unique features of various configurations comprise significant points of interest. Identical to and reproduced from IEC 60947-4-2, Ed. 3.0 (2011).
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AS/NZS IEC 60947.4.2:2015
COPYRIGHT
PREFACE
CONTENTS
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
3.1 General
3.2 Alphabetical index of terms
3.3 Terms and definitions concerning a.c. semiconductor motor controllers andstarters
3.4 Terms and definitions concerning hybrid motor controllers and starters
3.5 Terms and definitions concerning EMC definitions
3.6 Symbols and abbreviations
4 Classification
5 Characteristics of a.c. semiconductor motor controllers and starters
5.1 Summary of characteristics
5.2 Type of equipment
5.3 Rated and limiting values for main circuits
5.4 Utilization category
5.5 Control circuits
5.6 Auxiliary circuits
5.7 Characteristics of relays and releases (overload relays)
5.8 Co-ordination with short-circuit protective devices (SCPD)
6 Product information
6.1 Nature of information
6.2 Marking
6.3 Instructions for installation, operation, and maintenance
7 Normal service, mounting and transport conditions
7.1 Normal service conditions
7.2 Conditions during transport and storage
7.3 Mounting
7.4 Electrical system disturbances and influences
8 Constructional and performance requirements
8.1 Constructional requirements
8.2 Performance requirements
8.3 EMC requirements
9 Tests
9.1 Kinds of tests
9.2 Compliance with constructional requirements
9.3 Compliance with performance requirements
Annex A(normative)Marking and identification of terminals
A.1 General
A.2 Marking and identification of terminals of semiconductor controllersand starters
A.3 Marking and identification of terminals of overload relays
Annex BVacant
Annex C(normative)Co-ordination at the crossover current betweenthe starter and associated SCPD
C.1 Scope of this annex
C.2 General and definitions
C.3 Condition for the test for the verification of co-ordination at the crossovercurrent by a direct method
C.4 Test currents and test circuits
C.5 Test procedure and results to be obtained
C.6 Verification of co-ordination at the crossover current by an indirectmethod
Annex DVacant
Annex EVacant
Annex F(informative)Operating capability
Annex G(informative)Examples of control circuit configurations
G.1 External control device (ECD)
G.2 Control circuit configurations
Annex HVacant
Annex I(normative)Modified test circuit for short-circuit testingof semiconductor motor controllers and starters
Annex J(informative)Flowchart for constructing bypassed semiconductor controllers tests
Annex K(normative)Extended functions within electronic overload relays
K.1 Scope of this annex
K.2 Terms and definitions
K.3 Classification of electronic overload relays
K.4 Type of relays
K.5 Performance requirements
K.6 Tests
K.7 Routine and sampling tests
Bibliography
Table
Table 1 – Functional possibilities of semiconductor motor control devices
Table 2 – Utilization categories
Table 3 – Relative levels of severity
Table 4 – Trip classes of overload relays
Table 5 – Limits of operation of time-delay overload relays when energized on all poles
Table 6 – Limits of operation of three-pole time-delay overload relayswhen energized on two poles only
Table 7 – Temperature rise limits for insulated coils in air and in oil
Table 8 – Intermittent duty test cycle data
Table 9 – Minimum overload current withstand time (Tx) in relationto overload current ratio (X) and correspondingto overload relay trip class
Table 10 – Minimum requirements for thermal stability test conditions
Table 11 – Minimum requirements for overload capability test conditions
Table 12 – Minimum requirements and conditions for performance testingwith an induction motor load
Table 13 – Making and breaking capacity test; making and breaking conditionsaccording to utilization categories for the mechanical switching deviceof hybrid motor controllers H1, H2, H3 and for certain formsof bypassed controllers
Table 14 – Conventional operational performance making and breaking conditionsaccording to utilization categories for the mechanical switching deviceof hybrid motor controllers H1B, H2B, H3B and for certain formsof bypassed controllers
Table 15 – Specific acceptance or performance criteriawhen EM disturbances are present
Table 16 – Thermal stability test specifications
Table 17 – Initial case temperature requirements
Table 18 – Blocking and commutating capability test specifications
Table 19 – Terminal disturbance voltage limits for conducted radio-frequency emission
Table 20 – Radiated emissions test limits
Table A.1 – Main circuit terminal markings
Table C.1 – Test conditions
Table K.1 – Operating time of residual current electronic overload relays
Figure
Figure 1 – Semiconductor motor control devices
Figure 2 – Connecting methods
Figure 3 – Thermal memory test
Figure 4 – Multiple of current setting limits for ambient air temperaturecompensated time-delay overload relays
Figure C.1 – Examples of time-current withstand characteristic
Figure F.1 – Thermal stability test profile
Figure F.2 – Overload capability test profile
Figure F.3 – Blocking and commutating capability test profile
Figure G.1 – Diagrammatic representation of an ECD
Figure G.2 – Single supply and control input
Figure G.3 – Single supply and control input
Figure G.4 – Controllers with an internal control supply and control input only
Figure I.1 - Modified circuit for short-circuit testing of semiconductor devices
Figure I.2 - Time line for the short-circuit test of 9.3.4.1.6
Figure K.1 – Test circuit for the verification of the operating characteristicof a residual current electronic overload relay
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AS/NZS IEC 60947.4.2:2015
COPYRIGHT
PREFACE
CONTENTS
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
3.1 General
3.2 Alphabetical index of terms
3.3 Terms and definitions concerning a.c. semiconductor motor controllers andstarters
3.4 Terms and definitions concerning hybrid motor controllers and starters
3.5 Terms and definitions concerning EMC definitions
3.6 Symbols and abbreviations
4 Classification
5 Characteristics of a.c. semiconductor motor controllers and starters
5.1 Summary of characteristics
5.2 Type of equipment
5.3 Rated and limiting values for main circuits
5.4 Utilization category
5.5 Control circuits
5.6 Auxiliary circuits
5.7 Characteristics of relays and releases (overload relays)
5.8 Co-ordination with short-circuit protective devices (SCPD)
6 Product information
6.1 Nature of information
6.2 Marking
6.3 Instructions for installation, operation, and maintenance
7 Normal service, mounting and transport conditions
7.1 Normal service conditions
7.2 Conditions during transport and storage
7.3 Mounting
7.4 Electrical system disturbances and influences
8 Constructional and performance requirements
8.1 Constructional requirements
8.2 Performance requirements
8.3 EMC requirements
9 Tests
9.1 Kinds of tests
9.2 Compliance with constructional requirements
9.3 Compliance with performance requirements
Annex A(normative)Marking and identification of terminals
A.1 General
A.2 Marking and identification of terminals of semiconductor controllersand starters
A.3 Marking and identification of terminals of overload relays
Annex BVacant
Annex C(normative)Co-ordination at the crossover current betweenthe starter and associated SCPD
C.1 Scope of this annex
C.2 General and definitions
C.3 Condition for the test for the verification of co-ordination at the crossovercurrent by a direct method
C.4 Test currents and test circuits
C.5 Test procedure and results to be obtained
C.6 Verification of co-ordination at the crossover current by an indirectmethod
Annex DVacant
Annex EVacant
Annex F(informative)Operating capability
Annex G(informative)Examples of control circuit configurations
G.1 External control device (ECD)
G.2 Control circuit configurations
Annex HVacant
Annex I(normative)Modified test circuit for short-circuit testingof semiconductor motor controllers and starters
Annex J(informative)Flowchart for constructing bypassed semiconductor controllers tests
Annex K(normative)Extended functions within electronic overload relays
K.1 Scope of this annex
K.2 Terms and definitions
K.3 Classification of electronic overload relays
K.4 Type of relays
K.5 Performance requirements
K.6 Tests
K.7 Routine and sampling tests
Bibliography
Table
Table 1 – Functional possibilities of semiconductor motor control devices
Table 2 – Utilization categories
Table 3 – Relative levels of severity
Table 4 – Trip classes of overload relays
Table 5 – Limits of operation of time-delay overload relays when energized on all poles
Table 6 – Limits of operation of three-pole time-delay overload relayswhen energized on two poles only
Table 7 – Temperature rise limits for insulated coils in air and in oil
Table 8 – Intermittent duty test cycle data
Table 9 – Minimum overload current withstand time (Tx) in relationto overload current ratio (X) and correspondingto overload relay trip class
Table 10 – Minimum requirements for thermal stability test conditions
Table 11 – Minimum requirements for overload capability test conditions
Table 12 – Minimum requirements and conditions for performance testingwith an induction motor load
Table 13 – Making and breaking capacity test; making and breaking conditionsaccording to utilization categories for the mechanical switching deviceof hybrid motor controllers H1, H2, H3 and for certain formsof bypassed controllers
Table 14 – Conventional operational performance making and breaking conditionsaccording to utilization categories for the mechanical switching deviceof hybrid motor controllers H1B, H2B, H3B and for certain formsof bypassed controllers
Table 15 – Specific acceptance or performance criteriawhen EM disturbances are present
Table 16 – Thermal stability test specifications
Table 17 – Initial case temperature requirements
Table 18 – Blocking and commutating capability test specifications
Table 19 – Terminal disturbance voltage limits for conducted radio-frequency emission
Table 20 – Radiated emissions test limits
Table A.1 – Main circuit terminal markings
Table C.1 – Test conditions
Table K.1 – Operating time of residual current electronic overload relays
Figure
Figure 1 – Semiconductor motor control devices
Figure 2 – Connecting methods
Figure 3 – Thermal memory test
Figure 4 – Multiple of current setting limits for ambient air temperaturecompensated time-delay overload relays
Figure C.1 – Examples of time-current withstand characteristic
Figure F.1 – Thermal stability test profile
Figure F.2 – Overload capability test profile
Figure F.3 – Blocking and commutating capability test profile
Figure G.1 – Diagrammatic representation of an ECD
Figure G.2 – Single supply and control input
Figure G.3 – Single supply and control input
Figure G.4 – Controllers with an internal control supply and control input only
Figure I.1 - Modified circuit for short-circuit testing of semiconductor devices
Figure I.2 - Time line for the short-circuit test of 9.3.4.1.6
Figure K.1 – Test circuit for the verification of the operating characteristicof a residual current electronic overload relay
AS/NZS IEC 60947.4.2:2015
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.