en solar-log™ overvoltage protection for small and large ...€¦ · enerpro 220tr&20ka typ...
Post on 21-Aug-2020
3 Views
Preview:
TRANSCRIPT
1
Solar-Log™ Overvoltage Protection for Small
and Large Plants
EN
2
Publisher:
Solare Datensysteme GmbH
Fuhrmannstr. 9
72351 Geislingen-Binsdorf
Germany
International support
Tel.:+49 7428 9418 -640
Fax:+49 7428 9418 -280
e-mail: support@solar-log.com
Italy
Technical support: +39 0471 631032
e-mail: italy-support@solar-log.com
France
Technical support: +33 97 7909708
e-mail: france-support@solar-log.com
Switzerland
Technical support: +41 565 355346
e-mail: switzerland-fl-support@solar-log.com
United States
Technical support: +1 203 702 7189
e-mail: usa-support@solar-log.com
3
Table of Contents
1 Overvoltage Protection for Small Plants �������������������������������������������������������������41�1 General information on overvoltage and overvoltage protection������������������������������������������������������������ 4
2 Overvoltage Protection for Large Plants ������������������������������������������������������������ 52�1 Lightning and Overvoltage Protection Concept ���������������������������������������������������������������������������������������������� 52�2 Examples for lightning and overvoltage protection concepts ������������������������������������������������������������������� 6
4
Overvoltage Protection for Small Plants
1 Overvoltage Protection for Small Plants
1�1 General information on overvoltage and overvoltage protection
Whenever electronic components are used, a combination of adverse factors can lead to
overvoltage.
This also applies to photovoltaics and the large number of related private solar plants.
These factors go beyond just lightning strikes and also include electro-magnetic induction that, for exam-
ple, can lead to overvoltage spikes with unprotected cables. Overvoltage can cause irreparable damage to
the Solar-Log™ interfaces. Overvoltage protection is needed for the Solar-Log™ to counter these influences
and to minimize discharge damage.
Overvoltage protection can be installed at the RS485-A and RS485/422-B interface of the Solar-Log™ and
is a cost-effective protection from overvoltage damage. The installation of the overvoltage module is rela-
tive easy; it only has to be attached to the appropriate interface and then has to be grounded.
That is why it is recommended to install appropriate overvoltage protection on the inverter for smaller
plants to prevent damage to the interface (as described above) as well as to prevent any resulting data
loss.
Fig.: Example of overvoltage protection with a Solar-Log1000
5
Overvoltage Protection for Large Plants
2 Overvoltage Protection for Large Plants
2�1 Lightning and Overvoltage Protection Concept
For larger plants with many inverters, it is strongly advised to take the factors mentioned into account and
to install a lightning and overvoltage protection concept to protect the Solar-Log™ from overvoltage�
Due to the complexity of this overall concept, it is recommended to work with a specialist or the manufac-
turer to develop such a concept�
Here are two examples of an overall concept based on the recommendations from the companies Leutron
GmbH and Dehn & Söhne GmbH & Co� KG�
6
Overvoltage Protection for Large Plants
2�2 Examples for lightning and overvoltage protection concepts
Sola
r-Log
™
Rem
ote
Cont
rol
Grid
Oper
ator
Elec
trica
lcab
inet
F2
Grid
230V
Ethe
rnet
PM In
terfa
ce
DSL-
Rout
er /
Mob
ile R
oute
r
Data
Pro
RJ45
-CA
T6-4
8V-T
RAr
t.Nr.
2400
05
Grid
230V
Inv
1
Inv
2
Inv
31
RS-4
85 /
RS-4
22En
erPr
o 22
0Tr&
20kA
Ty
p 2-
3 pr
otec
tor
Art.N
r. 38
2022
Data
Pro
für D
ata
lines
Inve
rter
Requ
iresT
ype
1 pr
otec
tion
forb
uild
ing
orsu
bsta
tion
2-W
ire D
ata
+/-:
Data
Pro
2x1,
Art
.Nr.
28 2
4 24
3-W
ire D
ata
+/-,G
ND: D
ataP
ro3x
1, A
rt.N
r. 28
24
244-
Wire
(onl
y for
RS42
2): D
ataP
roRS
485,
Art
.Nr.
27 0
4 85
Only
reco
mm
ende
dw
hen
cabl
ele
ngth
>5m
Reco
mm
enda
tion
by Le
utro
n Gm
bHW
e re
com
men
d to
conf
irm th
e co
ncep
t with
the
man
ufac
ture
or a
lo
cal c
ompa
ny w
hich
is q
ualif
ied
in li
ghtn
ing p
rote
ctio
n
Conn
ectio
n fro
mco
mm
unica
tion
netw
ork
toDS
L Rou
ter c
anbe
prot
ecte
dby
Data
Pro
2x1-
24V-
SDSL
-Tr
Fig.: Lightning and overvoltage protection concept from the company Leutron GmbH
7
Overvoltage Protection for Large Plants
Sola
r-Log
™
Rem
ote
Cont
rol
Grid
Ope
rato
r
Elec
trica
lcab
inet
F2
Grid
230V
Ethe
rnet
PM In
terfa
ce
DSL-
Rout
er
Dehn
Pat
ch
Ethe
rnet
pr
otec
tion
Art.N
r. 92
9100
Grid
230
V
Inv
1
Inv
2
Inv
31
RS-4
85 /
RS-4
22De
hn R
ail D
R M
2P
255
Art.N
r. 95
3 20
0BL
ITZD
UCTO
Rfo
rdat
alin
es
Inve
rter
Requ
iresT
ype
1-2
prot
ectio
nfo
rbui
ldin
gor
subs
tatio
n, o
ther
wise
use
Dehn
Shi
eld
Type
1-3
2-w
ire D
ata
+/-,G
ND: P
SM-E
G-RS
485
, Art
.Nr.
920
271
4-w
ire (o
nly
forR
S422
): PS
M-E
G-RS
422
, Art
.Nr.
920
371
Forb
oth
the
mou
ntin
gpa
rt92
0300
isre
quire
d
Only
reco
mm
ende
dw
hen
cabl
ele
ngth
>5m
Reco
men
datio
nby
Dehn
+ S
öhne
Gm
bH +
Co.
KG
We
reco
mm
end
toco
nfirm
the
conc
eptw
ithth
em
anuf
actu
reor
a lo
cal
com
pany
whi
chis
qual
ified
in li
ghtn
ing
prot
ectio
n
Conn
ectio
n fro
mco
mm
unica
tion
netw
ork
toDS
L Rou
ter c
anbe
prot
ecte
dby
Dehn
nBox
DBX
TC 1
80
Fig.: Lightning and overvoltage protection concept from the company Dehn & Söhne GmbH & Co. KG
The copyright of these instructions remains with the
manufacturer. No part of these instructions may be
reproduced in any form or processed, duplicated
or distributed using electronic systems without the
written consent of Solare Datensysteme GmbH.
Subject to change without notice.
Solare Datensysteme GmbH cannot guarantee the
accuracy or completeness of the information pro-
vided and expressly refuses to accept liability for
any errors or omissions in such information.
Non-compliance resulting in contradiction of the
above-mentioned specifications shall result in obli-
gation to provide compensation for damages.
All brands and trademarks contained in this manual
are the sole property of the respective manufac-
turer, which we respect and recognize herewith.
"Speedwire" is registered trademark of SMA Solar
Technology AG in many countries.
Solare Datensysteme GmbH
Fuhrmannstraße 9
72351 Geislingen-Binsdorf
Germany
Tel: +49 7428 9418 200
Fax: +49 7428 9418 280
info@solar-log.com
www.solar-log.com
www.solarlog-WEB.com
Hotline: +49 7428 9418 660E
N | 0
7.2
017
| V
ers
ion
1.0
| S
ola
rLo
g_B
roch
ure
_O
verv
olt
ag
e_
pro
tecti
on
_p
lan
ts_
EN
top related