BS EN IEC 60779:2020
$142.49
Installations for electroheating and electromagnetic processing. Test methods for electroslag remelting furnaces
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 30 |
Clause 1 of IEC 60398:2015 is replaced by the following.
Replacement:
This International Standard specifies the test procedures, conditions and methods for determining the main performance parameters and operational characteristics of electroslag remelting furnaces.
Measurements and tests that are solely used for the verification of safety requirements of the installations are outside the scope of this document and are covered by IEC 60519-1 and IEC 60519-8.
This document applies to industrial electroslag remelting furnaces, the rated capacity of which is equal to, or greater than, 50 kg.
This document is applicable to industrial electroslag remelting furnaces having one or more electrodes and having different melting power supplies, such as alternating current, direct current, or low-frequency current.
This document includes the concept and material on energy efficiency dealing with the electrical and processing parts of the installations, as well as the overall performance.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 5 | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications |
| 7 | English CONTENTS |
| 9 | FOREWORD |
| 11 | 1 Scope 2 Normative references |
| 12 | 3 Terms and definitions 3.1 General |
| 13 | 3.2 Energy efficiency 3.3 State and parts |
| 14 | 4 Basic provisions for testing and test conditions 5 Comparing equipment or installations 6 Measurements and workloads 7 Numerical modelling |
| 15 | 8 Technical tests 8.100 Measurement of the effective stroke of the electrode ram motion 8.101 Measurement of the speed of the electrode motion 8.102 Measurement of the time interval for exchanging electrodes 8.103 Measurement of the open-circuit secondary voltage of the electroheating installation 8.104 Measurement of the electrical parameters of the secondary circuit of the electroheating installation 8.104.1 General |
| 16 | 8.104.2 Carrying out a short-circuit test |
| 17 | 8.104.3 Measurement of electrical parameters of the secondary circuit under normal operating conditions |
| 19 | 8.104.4 Measurement of currents of the coaxial return conductors 8.105 Measurement of the active power, reactive power and power factor of the electroheating installation 8.106 Measurement of the melting rate of consumable electrode(s) 8.107 Measurement of vacuum parameters for a vacuum electroslag remelting furnace 8.107.1 Measurement of the limit vacuum pressure 8.107.2 Measurement of the pumping time 8.107.3 Measurement of pressure rise rate |
| 20 | 8.107.4 Measurement of working pressure in the vacuum chamber of a furnace 8.108 Measurement of the pressure in the chamber of a pressurized electroslag remelting furnace 8.109 Measurement of the gas composition of an electroslag remelting furnace working under an inert gas atmosphere 9 Efficiency of the installation |
| 21 | Annexes Annex A (informative) Energy efficiency assessment |
| 22 | Annex B (informative) Visual display of energy efficiency related information |
| 23 | Annex C (informative) Estimating energy use |
| 24 | Annex D (informative) Energy recoverability |
| 25 | Annex AA (normative) Explanatory diagrams for symbols and definitions relating to the power circuit of electroslag remelting equipment AA.1 Power circuit of electroslag remelting equipment (see Figure AA.1 to Figure AA.3) Figure AA.1 – Example of a single-phase electroslag remelting furnace circuit |
| 26 | Figure AA.2 – Example of a three-phase electroslag remelting furnace circuit |
| 27 | Figure AA.3 – Example of a coaxial electroslag remelting furnace circuit |
| 28 | Bibliography |
