IEC 60831-1:2002 pdf download

IEC 60831-1:2002 pdf download.Shunt power capacitors of the self-healing typefor a.c.systems having a rated voltage up toand including 1 000 v- Part 1:General- Performance, testing and rating -Safety requirements – Guide for installationand operation.
IEC 610004.1:1992, Eiectromagnet,c compat,b,lity (EMC) — Part 4: Testing and measurement techniques — Section 1: Overview of immunity tests. Basic EMC publication
IEC 61048:1991, Capacitors for use in tubular fluorescent and other discharge lamp circuits — General and safety requirements
IEC 61049:1991, Capacitors for use in tubular fluorescent and other discharge lamp circuits — Performance requirements
IEC 61071-1:1993. Power electronic capacitors — Part 1: General
3 Definitions
For the purposes of this part of IEC 60831, the following definitions apply:
31
capacitor element (or element)
a device consisting essentially of two electrodes separated by a dielectric
[1EV 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
[1EV 43601-04]
3.3
self-healing capacitor
a capacitor of which the electrical properties, after local breakdown of the dielectric, are
rapidly and essentially restored
(1EV 436-03-12)
3,4
capacItor bank (or bank)
a number of capacitor units connected so as to act together
11EV 436-01-061
3.5
capacitor
in this part of IEC 60831. the word capacitor Is used when ills 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
[1EV 436.01-07]
a device which may be incorporated in a capacitor, capable of reducing the voltage between the terminals practically to zero, within a given time, after the capacitor has been disconnected from a network
[1EV 436 03-15 modified]
3.8
internal fuse of a capacitor
a fuse connected inside a capacitor unit, in series with an element or a group of elements
[1EV 436-03-16]
3.9
overpressure disconnector for a capacitor
a disconnecting device designed to switch off the capacitor in the case of abnormal increase
of the internal pressure
[1EV 436-03-17 modified]
3.10
overtemperature disconnector for a capacitor
a disconnecting device designed to switch off the capacitor in the case of abnormal increase
of the internal temperature
3.11
line terminal
a terminal intended for connection to a line conductor of a network
[1EV 436-03-01]
NOTE In polyphase capacitors, a terminal intended to be connected to the neutral conductor is not considered to be a line terminal.
3.12
rated capacitance of a capacitor (CN)
the capacitance value for which the capacitor has been designed [1EV 436-01-12 modified]
3.13
rated output of a capacitor (QN)
the reactive power derived from the rated values of capacitance, frequency and voltage [1EV 436-01-16 modified]
3.14
rated voltage of a capacitor (UN)
the r.m.s. value of the alternating voltage for which the capacitor has been designed
[1EV 436-01-15]
NOTE In the case of capacitors consisting or one or more separate circuits (such as single-phase units intended for use in polyphase connection, or polyphase units with separate circuits). UN refers to the rated voltage of each circuit.
For polyphase capacitors with internal electrical connections between the phases, and for polyphase capacitor banks, UN refers to the phase-to-phase voltage.
3.15
rated frequency of a capacitor (fN)
the frequency for which the capacitor has been designed
[1EV 436-01-14]
3.16
rated current of a capacitor (IN)
the r.m.s. value of the alternating current for which the capacitor has been designed
[1EV 436-01-13]
3.17
capacitor losses
the active power dissipated in the capacitor
[1EV 436-04-10]
NOTE All loss-producing components should be included, for example:
— for a unit, losses from dielectric, internal fuses, internal discharge resistor, connections. etc.;
— for a bank, losses from units, external fuses, busbars, discharge and damping reactors, etc.
3.18
tangent of the loss angle (tan 8) of a capacitor
the ratio between the equivalent series resistance and the capacitive reactance of the capacitor at specified sinusoidal alternating voltage and frequency
[1EV 436-04-111
3.19
maximum permissible a.c. voltage of a capacitor
the maximum r.m.s. alternating voltage which the capacitor can sustain for a given time in specified conditions
[1EV 436-04-07]
3.20
maximum permissible a.c. current of a capacitor
the maximum r.m.s. alternating current which the capacitor can sustain for a given time in specified conditions
[1EV 436-04-09]
3.21
ambient air temperature
the temperature of the air at the proposed location of the capacitor
3.22
cooling air temperature
the temperature of the cooling air measured at the hottest position in the bank, under steadystate conditions, midway between two units, If only one unit is involved, it is the temperature measured at a point approximately 0,1 m away from the capacitor container and at two-thirds of the height from its base.