SIST EN 50524:2010

SLOVENSKI STANDARD
SIST EN 50524:2010
01-december-2010
3UHGVWDYLWHYWHKQLþQLKSRGDWNRYLQQDSLVQHSORãþLFH]DIRWRQDSHWRVWQH
UD]VPHUQLNH
Data sheet and name plate for photovoltaic inverters
Datenblatt und Typschildangaben von Photovoltaik-Wechselrichtern
Fiche technique et plaque d’identification pour les onduleurs photovoltaïques
Ta slovenski standard je istoveten z: EN 50524:2009
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
SIST EN 50524:2010 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 50524:2010

---------------------- Page: 2 ----------------------

SIST EN 50524:2010

EUROPEAN STANDARD
EN 50524

NORME EUROPÉENNE
July 2009
EUROPÄISCHE NORM

ICS 27.160


English version


Data sheet and name plate
for photovoltaic inverters



Fiche technique et plaque d’identification Datenblatt- und Typschildangaben
pour les onduleurs photovoltaïques von Photovoltaik-Wechselrichtern





This European Standard was approved by CENELEC on 2009-06-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels


© 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50524:2009 E

---------------------- Page: 3 ----------------------

SIST EN 50524:2010
EN 50524:2009 - 2 -

Foreword
This European Standard was prepared by the Technical Committee CENELEC TC 82, Solar
photovoltaic energy systems.
The text of the draft was submitted to the Unique Acceptance Procedure and was approved by
CENELEC as EN 50524 on 2009-06-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2010-06-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2012-06-01
__________

---------------------- Page: 4 ----------------------

SIST EN 50524:2010
- 3 - EN 50524:2009

Contents
1 Scope . 4
2 Normative references . 4
3 Terms . 4
3.1 Input side (PV - Generator) . 4
3.2 Output side (Grid connection) . 5
4 Data sheet information . 6
4.1 General . 6
4.2 Short description. . 6
4.3 Conformity . 6
4.4 Electrical param eters . 6
4.5 Characterization of the operating performance . 6
4.6 Safety . 8
4.7 Operating conditions . 8
4.8 Fitting and construction . 8
5 Details on the name plate . 9
Bibliography .11
Figures
Figure 1 – Representation of the inverter efficiency . 7
Figure 2 – Power reduction with increased ambient temperatures . 8
Figure 3 – Example for a name plate .10

---------------------- Page: 5 ----------------------

SIST EN 50524:2010
EN 50524:2009 - 4 -

1 Scope
This European Standard describes data sheet and name plate information for photovoltaic inverters in
grid parallel operation.
The intent of this document is to provide minimum information required to configure a safe and optimal
system with photovoltaic inverters.
In this context, data sheet information is a technical description separate from the photovoltaic
inverter. The name plate is a sign of durable construction at or in the photovoltaic inverter. The name
plate may be inside the photovoltaic inverter only if the name plate is visible once a door is opened in
normal use.
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.
EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529)
EN 60664-1, Insulation coordination for equipment within low-voltage systems - Part 1: Principles,
requirements and tests (IEC 60664-1)
EN 61683, Photovoltaic systems - Power conditioners - Procedure for measuring efficiency
(IEC 61683)
1)
EN 62109-1 , Safety of power converters for use in photovoltaic power systems - Part 1: General
1)
requirements (IEC 62109-1 )
IEC 60721-2-1, Classification of environmental conditions - Part 2-1: Environmental conditions
appearing in nature - Temperature and humidity
IEC 62103, Electronics equipment for use in power installations
3 Terms and definitions
3.1 Input side (PV - Generator)
3.1.1
maximum input voltage (V )
dcmax
allowed maximum voltage at the inverter input
3.1.2
minimum input voltage (V )
dcmin
minimum input voltage for the inverter to energize the utility grid, independent of mode of operation
3.1.3
start-up input voltage (V )
dcstart
input voltage at which the inverter starts energizing the utility grid
———————
1)
At draft stage.

---------------------- Page: 6 ----------------------

SIST EN 50524:2010
- 5 - EN 50524:2009

3.1.4
rated input voltage (V )
dc,r
input voltage specified by the manufacturer, to which other data sheet information refers
3.1.5
)
maximum MPP voltage (V
mppmax
maximum voltage at which the inverter can deliver its rated power
3.1.6
minimum MPP voltage (V )
mppmin
minimum voltage at which the inverter can deliver its rated power
3.1.7
)
maximum input current (I
dcmax
maximum current at which the inverter can operate. If the inverter has multiple MPP inputs, I is
dcmax
related to each single input
3.2 Output side (Grid connection)
3.2.1
maximum grid voltage (V )
acmax
maximum voltage at which the inverter can energize the grid
3.2.2
)
minimum grid voltage (V
acmin
minimum voltage at which the inverter can energize the grid
3.2.3
rated grid voltage (V )
ac,r
utility grid voltage to which other data sheet information refers
3.2.4
maximum output current (I )
acmax
maximum output current that the inverter
...