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eLibrary >
25/30485205 DC BS EN IEC 60947-6-1 Low-voltage switchgear and controlgear - Part 6-1: Multiple function equipment - Transfer switching equipment >
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25/30485205 DC BS EN IEC 60947-6-1 Low-voltage switchgear and controlgear - Part 6-1: Multiple function equipment - Transfer switching equipment, 2025
- 121A_639e_CDV.pdf [Go to Page]
- FOREWORD
- INTRODUCTION
- 1 Scope
- 2 Normative references
- 3 Terms and definitions [Go to Page]
- 3.1 General
- 3.2 Alphabetical index of terms
- 3.3 Transfer switching devices
- 3.4 Operation of TSE
- 3.5 Main contact positions
- 3.6 Symbols and abbreviations
- 4 Classification
- 5 Characteristics [Go to Page]
- 5.1 Summary of characteristics
- 5.2 Type and characteristics of equipment
- 5.3 Rated and limiting values for the main circuit [Go to Page]
- 5.3.1 General
- 5.3.2 Rated voltages [Go to Page]
- 5.3.2.1 Rated operational voltage (Ue)
- 5.3.2.2 Rated insulation voltage (Ui)
- 5.3.2.3 Rated impulse withstand voltage (Uimp)
- 5.3.3 Rated operational current (Ie)
- 5.3.4 Rated frequency
- 5.3.5 Rated making and breaking capacities
- 5.3.6 Short-circuit characteristics [Go to Page]
- 5.3.6.1 General
- 5.3.6.2 Rated short-time withstand current (Icw)
- 5.3.6.3 Rated short-circuit making capacity (Icm)
- 5.3.6.4 Rated short-circuit breaking capacity (Icn)
- 5.3.6.5 Rated conditional short-circuit current (Iq, alternatively Icc)
- 5.4 Utilization category
- 5.5 Control circuits [Go to Page]
- 5.5.1 General
- 5.5.2 Electro-mechanical devices operating the main circuit
- 5.5.3 ATS controller
- 5.6 Auxiliary circuits
- 6 Product information [Go to Page]
- 6.1 Nature of information
- 6.2 Marking
- 6.3 Instructions for installation, operation and maintenance, decommissioning and dismantling
- 6.4 Environmental information
- 7 Normal service, mounting and transport conditions
- 8 Constructional and performance requirements [Go to Page]
- 8.1 Constructional requirements [Go to Page]
- 8.1.1 General
- 8.1.2 Materials
- 8.1.3 Indication [Go to Page]
- 8.1.3.1 Switching position
- 8.1.3.2 ATS controller HMI
- 8.1.4 Equipment suitable for isolation [Go to Page]
- 8.1.4.1 Withdrawable mechanisms with isolating contacts
- 8.1.5 Opening and closing of main contacts
- 8.1.6 Clearances and creepage distances
- 8.1.7 Provision for protective earthing
- 8.1.8 Stored charge energy circuit
- 8.1.9 Stored energy closing
- 8.1.10 Dedicated enclosures for TSE
- 8.1.11 Communication
- 8.2 Performance requirements [Go to Page]
- 8.2.1 Operating conditions [Go to Page]
- 8.2.1.1 General
- 8.2.1.2 Operating mechanism
- 8.2.1.3 Controls, sequence and limits of operation
- 8.2.2 Temperature-rise
- 8.2.3 Dielectric properties
- 8.2.4 Ability to make, carry, and break under no-load, normal load and overload conditions [Go to Page]
- 8.2.4.1 Making and breaking capacities
- 8.2.4.2 Operational performance [Go to Page]
- 8.2.4.2.1 General
- 8.2.4.2.2 Electrical operational performance
- 8.2.4.2.3 Mechanical operational performance
- 8.2.4.3 Durability
- 8.2.5 Ability to make and break under short-circuit conditions [Go to Page]
- 8.2.5.1 Rated short-time withstand current
- 8.2.5.2 Rated short-circuit making capacity
- 8.2.5.3 Rated short-circuit breaking capacity
- 8.2.5.4 Rated conditional short-circuit current
- 8.2.6 Critical load current performance of TSE with DC rating
- 8.3 Electromagnetic compatibility (EMC) [Go to Page]
- 8.3.1 General
- 8.3.2 Immunity
- 8.3.3 Emission
- 9 Tests [Go to Page]
- 9.1 Kinds of tests
- 9.2 Type tests [Go to Page]
- 9.2.1 General test conditions
- 9.2.2 Test sequences
- 9.2.3 Test sequence I - General performance characteristics [Go to Page]
- 9.2.3.1 Compliance with constructional requirements [Go to Page]
- 9.2.3.1.1 General
- 9.2.3.1.2 Electrical performance of screwless-type clamping units
- 9.2.3.1.3 Ageing test for screwless-type clamping units
- 9.2.3.2 Operation [Go to Page]
- 9.2.3.2.1 General
- 9.2.3.2.2 Interlocking function verification [Go to Page]
- 9.2.3.2.2.1 General
- 9.2.3.2.2.2 Manual operation
- 9.2.3.2.2.3 Electrically controlled operation
- 9.2.3.2.3 Verification of the robustness of the interlock [Go to Page]
- 9.2.3.2.3.1 General
- 9.2.3.2.3.2 Manual operation
- 9.2.3.2.3.3 Dependent power operation
- 9.2.3.2.3.4 Independent power operation
- 9.2.3.2.3.5 Condition of equipment during and after test
- 9.2.3.2.4 Verification of electrical interlock in case of individual failure
- 9.2.3.2.5 Verification of the contact transfer time
- 9.2.3.3 Controls, sequence and limits of operation [Go to Page]
- 9.2.3.3.1 General
- 9.2.3.3.2 Operation on loss of supply voltage
- 9.2.3.3.3 Operation on deviation of source I supply characteristics
- 9.2.3.3.4 Operation on deviation of source II supply characteristics
- 9.2.3.3.5 Operation with in-phase transfer control function
- 9.2.3.4 Tripping limits and characteristics
- 9.2.3.5 Temperature-rise
- 9.2.3.6 Dielectric properties
- 9.2.4 Test sequence II – Operational performance capability [Go to Page]
- 9.2.4.1 Making and breaking capacities [Go to Page]
- 9.2.4.1.1 Derived TSE
- 9.2.4.1.2 General test conditions
- 9.2.4.1.3 Test circuit
- 9.2.4.1.4 Verification of making and breaking capacities
- 9.2.4.2 Operational performance capability [Go to Page]
- 9.2.4.2.1 Derived TSE
- 9.2.4.2.2 Electrical operational performance
- 9.2.4.2.3 Mechanical operational performance
- 9.2.4.3 Verification of dielectric withstand
- 9.2.4.4 Verification of temperature-rise
- 9.2.4.5 Verification of overload releases
- 9.2.4.6 Verification of the effectiveness of indication of the main contact position of equipment suitable for isolation
- 9.2.5 Test sequence III – Short-circuit performance capability [Go to Page]
- 9.2.5.1 General requirements for short-circuit tests
- 9.2.5.2 Short-time withstand current [Go to Page]
- 9.2.5.2.1 Application
- 9.2.5.2.2 Test procedure
- 9.2.5.3 Short-circuit making capacity [Go to Page]
- 9.2.5.3.1 Application
- 9.2.5.3.2 Test procedure
- 9.2.5.4 Short-circuit breaking capacity [Go to Page]
- 9.2.5.4.1 Application
- 9.2.5.4.2 Test conditions
- 9.2.5.4.3 Verification of overload releases
- 9.2.5.4.4 Test of rated short-circuit breaking capacity
- 9.2.5.4.5 Verification of overload releases
- 9.2.5.5 Verification of dielectric withstand
- 9.2.5.6 Verification of temperature-rise
- 9.2.6 Test sequence IV - Conditional short-circuit current [Go to Page]
- 9.2.6.1 Application
- 9.2.6.2 Test conditions
- 9.2.6.3 Test of conditional short-circuit current
- 9.2.6.4 Verification of dielectric withstand
- 9.2.6.5 Verification of temperature-rise
- 9.2.7 Test sequence V: critical load current performance of equipment with a DC rating [Go to Page]
- 9.2.7.1 General
- 9.2.7.2 Determination of critical load current [Go to Page]
- 9.2.7.2.1 Test values and conditions
- 9.2.7.2.2 Test circuit
- 9.2.7.2.3 Value of critical load current
- 9.2.7.3 Critical load current performance
- 9.2.8 Test sequence VI - EMC tests [Go to Page]
- 9.2.8.1 General
- 9.2.8.2 Immunity [Go to Page]
- 9.2.8.2.1 General
- 9.2.8.2.2 Electrostatic discharges
- 9.2.8.2.3 Conducted and radiated disturbances induced by radio-frequency fields
- 9.2.8.2.4 Fast transient bursts
- 9.2.8.2.5 Surges
- 9.2.8.2.6 Power frequency magnetic fields
- 9.2.8.2.7 Harmonics
- 9.2.8.2.8 Voltage dips and short-time interruptions
- 9.2.8.2.9 Performance of the test sample during and after the test
- 9.2.8.3 Emission [Go to Page]
- 9.2.8.3.1 General
- 9.2.8.3.2 Conducted radio-frequency emission tests
- 9.2.8.3.3 Radiated radio-frequency emission tests
- 9.3 Routine tests
- 9.4 Environmental tests
- Annex A (normative) Assignment of utilization categories based on results of tests
- Annex B (informative) Items subject to agreement between manufacturer and user
- Annex C (normative) Bypass/Isolation Transfer Switch Equipment [Go to Page]
- C.1 General
- C.2 (void)
- C.3 (void)
- C.4 Classification
- C.5 Characteristics
- C.6 Product information
- C.7 Normal service, mounting and transport conditions
- C.8 Constructional and performance requirements [Go to Page]
- C.8.1 General
- C.8.2 Construction requirements [Go to Page]
- C.8.2.1 Operating means
- C.8.2.2 Main TSE isolation
- C.8.2.3 Power for test purposes
- C.8.2.4 Power in bypass/isolation mode
- C.8.2.5 Visual indication
- C.8.3 Performance requirements [Go to Page]
- C.8.3.1 Operating mechanism
- C.8.3.2 Withdrawable type BTSE
- C.8.3.3 Ability to make, carry, and break under overload conditions
- C.8.3.4 Temperature-rise
- C.8.3.5 Verification of dielectric withstand
- C.8.3.6 Rated short-time withstand current (Icw)
- C.8.3.7 Rated short-circuit making capacity (Icm)
- C.8.3.8 Mechanical operational performance
- C.9 Tests [Go to Page]
- C.9.1 Interlocking function verification
- C.9.2 Full assembly tests
- C.9.3 Routine tests
- C.10 BTSE typical circuits and main components [Go to Page]
- C.10.1 Example of operating sequence of a single line fixed type BTSE
- C.10.2 Example of operating sequence of a double line fixed type BTSE
- C.10.3 Example of operating sequence of a double line withdrawable type BTSE
- C.10.4 Example of operating sequence of a double line load-break withdrawable type BTSE
- C.10.5 Example of operating sequence of a single line withdrawable type BTSE
- Annex D (normative) ATSE having closed transition capability [Go to Page]
- D.1 General
- D.2 (void)
- D.3 (void)
- D.4 Classification
- D.5 Characteristics
- D.6 Product information
- D.7 Normal service, mounting and transport conditions
- D.8 Constructional and performance requirements [Go to Page]
- D.8.1 General
- D.8.2 Operating mechanism
- D.8.3 Controls, sequence, and limits of operation [Go to Page]
- D.8.3.1 Examples of additional control circuit and external disconnecting devices
- D.8.4 Performance requirements
- D.9 Tests [Go to Page]
- D.9.1 General
- D.9.2 Test procedure [Go to Page]
- D.9.2.1 Test procedure during open transition
- D.9.2.2 Test procedure during closed transition
- D.9.2.3 Operation of synchronizing for a closed transition transfer sequence
- D.9.2.4 Test of sequence when paralleling for more than 100 ms
- D.9.2.5 Test of additional circuit
- D.9.3 Figures to clarify closed transition transfer [Go to Page]
- D.9.3.1 Main contact positions during open and closed transition
- D.9.3.2 Examples of operating sequence with the return transfer in closed transition [Go to Page]
- D.9.3.2.1 Operating sequence with a successful return transfer in closed transition
- D.9.3.2.2 Operating sequence with a fail to open position II contacts in less than 100 ms during a return transfer in closed transition
- D.9.3.2.3 Example of an operating sequence with a fail to open position II and position I contacts in less than 100 ms during a return transfer in closed transition
- Annex E (normative) Stand-alone ATS controller [Go to Page]
- E.1 General
- E.2 (void)
- E.3 (void)
- E.4 Classification
- E.5 Characteristics
- E.6 Product information [Go to Page]
- E.6.1 Product instructions for operation
- E.7 Normal service, mounting and transport conditions
- E.8 Constructional and performance requirements [Go to Page]
- E.8.1 Constructional requirements [Go to Page]
- E.8.1.1 Degree of protection
- E.8.1.2 Auxiliary Power Supply
- E.8.1.3 Dielectric
- E.8.1.4 Robustness of the interlocking control (if applicable)
- E.8.1.5 Inputs and outputs
- E.8.1.6 Power metering and monitoring function (if applicable) [Go to Page]
- E.8.1.6.1 Disconnection of current transformers (if applicable)
- E.8.1.7 Stand-alone ATS Controller HMI
- E.8.1.8 Embedded software
- E.8.1.9 Security
- E.8.2 Performance requirements [Go to Page]
- E.8.2.1 General
- E.8.2.2 Limited energy source
- E.8.3 Electromagnetic compatibility (EMC)
- E.9 Tests [Go to Page]
- E.9.1 General
- E.9.2 List of type tests
- E.9.3 Wire flexing test
- E.9.4 EMC tests
- E.9.5 Stand-alone ATS Controller routine test
- E.9.6 Environmental tests
- E.9.7 Example to clarify stand-alone ATS Controller operating transfer time
- Annex F (normative) TSE used with electric driven fire pump control equipment [Go to Page]
- F.1 General
- F.2 Normative references
- F.3 Terms and definitions
- F.4 Classification
- F.5 Characteristics
- F.6 Product information
- F.7 Normal service, mounting and transport conditions
- F.8 Constructional, functional, and performance requirements [Go to Page]
- F.8.1 General
- F.8.2 Manual operating means for maintenance and servicing
- F.8.3 Voltage sensing
- F.8.4 Initiation of transfer to secondary supply source
- F.8.5 Frequency monitoring of generator source
- F.8.6 Indicators of transfer
- F.8.7 Integral protective devices
- F.8.8 Generator starting contacts
- F.8.9 Power circuit components
- F.8.10 Operating mechanism
- F.9 Tests [Go to Page]
- F.9.1 General [Go to Page]
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