IEC 60831-1 pdf download

IEC 60831-1 pdf download.Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1 000 V
1 Scope and object
This part of IEC 60831 is applicable to both capacitor units and capacitor banks intended to be used, particularly, for power-factor correction of a.c. power systems having a rated voltage up to and including 1000 V and frequencies 15 Hz to 60 Hz. This part of IEC 60831 also applies to capacitors intended for use in power filter circuits. Additional definitions, requirements, and tests for filter capacitors are given in annex A. The following capacitors are excluded from this part of IEC 60831: – Shunt power capacitors of the non-self-healing type for a.c. systems having a rated voltage up to and including 1000 V (IEC 60931). – Shunt capacitors for a.c. power systems having a rated voltage above 1000 V (IEC 60871). – Capacitors for inductive heat-generating plants operating at frequencies between 40 Hz and 24 000 Hz (IEC 60110). – Series capacitors (IEC 60143). – Capacitors for motor applications and the like (IEC 60252). – Coupling capacitors and capacitor dividers (IEC 60358). – Capacitors to be used in power electronic circuits (IEC 61071). – Small a.c. capacitors to be used for fluorescent and discharge lamps (IEC 61048 and IEC 61049). – Capacitors for suppression of radio interference (under consideration). – Capacitors intended to be used in various types of electrical equipment, and thus considered as components. – Capacitors intended for use with d.c. voltage superimposed on the a.c. voltage. Accessories such as insulators, switches, instrument transformers, fuses, etc., should be in accordance with the relevant IEC standards.
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. IEC 60050(436):1990, International Electrotechnical Vocabulary (IEV) – Chapter 436: Power capacitors IEC 60060-1:1989, High voltage test techniques – Part 1: General definitions and test requirements IEC 60110:1973, Recommendation for capacitors for inductive heat generating plants operating at frequencies between 40 and 24 000 Hz IEC 60143:1992, Series capacitors for power systems IEC 60252:1993, A.C. motor capacitors IEC 60269-1:1986, Low-voltage fuses – Part 1: General requirements IEC 60358:1990, Coupling capacitors and capacitor dividers IEC 60831-2:1995, Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1000 V – Part 2: Ageing test, self-healing test and destruction test IEC 60871-1:1987, Shunt capacitors for a.c. power systems having a rated voltage above 1000 V * – Part 1: General – Performance, testing and rating – Safety requirements – Guide for installation and operation IEC 60931-1:1996, Shunt power capacitors of the non-self-healing type for a.c. systems having a rated voltage up to and including 1000 V – Part 1: General – Performance, testing and rating – Safety requirements – Guide for installation and operation IEC 60931-3:1996, Shunt power capacitors of the non-self-healing type for a.c. systems having a rated voltage up to and including 1000 V – Part 3: Internal fuses IEC 61000-2-2:1990, Electromagnetic compatibility (EMC) – Part 2: Environment – Section 2: Compatibility levels for low-frequency conducted disturbances and signalling in public low- voltage power supply systems
3 Definitions
For the purposes of this part of IEC 60831, the following definitions apply: 3 1 capacitor element (or element) a device consisting essentially of two electrodes separated by a dielectric [IEV 436-01-03] 3.2 capacitor unit (or unit) an assembly of one or more capacitor elements in the same container with terminals brought out [IEV 436-01-04] 3.3 self-healing capacitor a capacitor of which the electrical properties, after local breakdown of the dielectric, are rapidly and essentially restored [IEV 436-03-12] 3.4 capacitor bank (or bank) a number of capacitor units connected so as to act together [IEV 436-01-06] 3.5 capacitor in this part of IEC 60831, the word capacitor is used when it is not necessary to lay particular stress upon the different meanings of the words capacitor unit or capacitor bank 3.6 capacitor installation one or more capacitor banks and their accessories [IEV 436-01-07]