IEC 61823 pdf download

IEC 61823 pdf download

IEC 61823 pdf download Electrical installations for lighting and beaconing of aerodromes – AGL series transformers
1 Scope
This standard specifies the characteristics of aeronautical ground lighting series transformers(AGLST)used in aeronautical ground lighting for 6,6 A series circuits, at a service voltage ofup to 5 kV, supplied by constant current regulators up to 30 kVA in rating.
AGL series transformers provide power to airport lighting luminaires or other loads (resistive)from their secondary circuits.The AGL series transformers provide continuity of the seriescircuit in the event of a loss of the load on the transformer, and electrical isolation betweenthe primary circuit supplied by a constant current regulator,and the secondary circuitconnected to the load under conditions defined in this standard.
An AGL series transformer is be able to withstand a permanent short or open-circuitsecondary series circuit.
Specifications for similar series transformers intended for any primary or secondary currentsother than 6,6 A,or to supply alternative voltages,constant power,reactive loads,etc., arenot included in this standard.
2Normative 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 editionof the referenced document (including any amendments) applies.
IEC 60085,Thermal evaluation and classification of electrical insulation
IEC 61822,Electrical installations for lighting and beaconing of aerodromes – Constantcurrent regulators
ISo 48,Rubber,vulcanised or thermoplastic – Determination of hardness (hardness between10 IRHD and 100 IRHD)
3Definitions and abbreviated terms
For the purposes of this standard the following definitions apply.
Where the terms voltage and current are used, they shall be r.m.s. values unless otherwisestated.
AGL series transformer
aeronautical ground lighting series transformer, as specified in this standard
ambient temperature
the temperature of the air or other medium surrounding the AGL series transformer; for testingpurposes, a temperature of (20± 5)°c
nominal power
arbitrarily selected values of power used in this standard for convenience to refer to AGL series transformers with different characteristics
rated frequency
the frequency or frequency range for which the AGL series transformer is designed to operate
rated power
the range of powers for which each AGL series transformer is suitable. NOTE The low and high values of these ranges are given in Table 1 .
rated primary current
the current at which the primary of the AGL series transformer is designed to operate
rated secondary current
the current at which the secondary of the AGL series transformer is designed to operate
routine test
test for the purpose of checking manufactured products for compliance with this standard
service voltage
the maximum primary or secondary voltage at which the AGL series transformer is designed
to operate
3.1.1 0
type test
a test to confirm that the product design and production processes are capable of providing products that meet the requirements of this standard
3.1.1 1
type test sample
a sample consisting of one or more similar samples used for a type test
3.2 Abbreviated terms
AC1 Source of mains power
AC2 High voltage a.c. source
AGLST AGL series transformer
DC1 Source of d.c. power
CCR Constant current regulator as specified in IEC 61 822
I 1 , I 2
Primary and secondary currents respectively, as measured by ammeters or equivalent devices
U 1 , U 2 Primary and secondary voltages respectively, as measured by voltmeters or equivalent devices
P 1 , P 2 Active power measurements or calculations of respectively the primary and secondary circuits of an AGL series transformer

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