Bender RCM470DD Handbuch Seite 6

RCM470DD
Isolationsfehler R
auf Lastseite
F
(Alarmmeldung bei Ansprechwertüberschreitung)
Abb. 6: Fehler auf Lastseite
Inbetriebnahme
Vor der Inbetriebnahme ist eine Kontrolle des ordnungsgemäßen
Anschlusses des RCM470DD und des CD470 erforderlich
Führen Sie eine Funktionsprüfung mittels eines
echten Erdschlusses durch, ggf. über einen dafür
geeigneten Widerstand.
Technische Daten RCM470DD
Isolationskoordination nach IEC 60664-1
Bemessungsspannung ............................................................................................................ 250 V
Überspannungskategorie ............................................................................................................... III
Bemessungsstoßspannung ........................................................................................................4 kV
Einsatzbereich...................................................................................................... < 2000m über NN
Bemessungs-Isolationsspannung............................................................................................ 250 V
Verschmutzungsgrad ..................................................................................................................... 3
Isolierung ........................................................................................................... Doppelte Isolierung
Spannungsprüfung nach IEC 61010-1...................................................................................2,21 kV
Spannungsbereiche
Überwachtes Netz U
........................................................................................ 3(N) AC 230/400 V
n
Arbeitsbereich von U ..............................................................................................0,24...1,1 x U
n
Frequenzbereich U
.........................................................................................................50...60 Hz
n
Speisespannung U
......................................................................................... siehe Bestellangaben
S
Frequenzbereich von U
.................................................................................................50...60 Hz
S
Arbeitsbereich von U ..............................................................................................0,85...1,1 x U
S
Eigenverbrauch ......................................................................................................................≤ 3 VA
Messkreis
Messstromwandler, extern ................................................................................Serie W..., WR...
Bürde ........................................................................................................................................ 180 Ω
Ansprechcharakteristik nach IEC 62020 ...................................................................................Typ A
Bemessungs-Ansprechdifferenzstrom I
Δn
Ansprechverzögerung t
, einstellbar ................................................................................. 0...10 s
v
Genauigkeit der Ansprechverzögerung ................................................................................±20 %
Bemessungsfrequenz ......................................................................................................50...60 Hz
Prozentuale Ansprechunsicherheit ............................................................................... 0...–20 %
Hysterese ............................................................................................. ca. 25 % vom Ansprechwert
Ansprechzeit ................................................................................................................t
Anzahl der Messkanäle ....................................................................................................................1
6
L1
L2
L3
C
V
I
PE CV
.
............................................................... 10 mA...10 A
an
Insulation fault R
(alarm message if the response value is exceeded)
I = I
Δ
CV
U V W
N N N
CD470
W
U V
U s
k l
U V W
RCM470DD
I
CV
Commissioning
Before commissioning, it is necessary to check that the connec-
tions of the RCM470DD and the CD470 are correct
Technical data RCM470DD
Insulation coordination according to IEC 60664-1
Rated insulation voltage .......................................................................................................... 250 V
Overvoltage category ..................................................................................................................... III
Rated impulse withstand voltage...............................................................................................4 kV
Range of use ........................................................................................................... ≤ 2000 m AMSL
Rated insulation voltage............................................................................................................250 V
Pollution degree ............................................................................................................................... 3
Insulation ............................................................................................................... double insulation
Voltage test acc. to IEC 61010-1............................................................................................2.21 kV
Voltage ranges
Monitored system U
Operating range of U
n
Frequency range U
n
Supply voltage U
..................................................................................... see ordering information
S
Frequency range of U
Operating range of U
S
Power consumption ...............................................................................................................≤ 3 VA
Measuring circuit
External measuring current transformers..........................................................W..., WR...series
Load ......................................................................................................................................... 180 Ω
Operating characteristics acc. to IEC 62020 ............................................................................type A
Rated residual operating current I
Response delay t
, adjustable .............................................................................................0...10 s
v
Accuracy of the response delay .............................................................................................±20 %
Rated frequency ..............................................................................................................50...60 Hz
Relative uncertainty ....................................................................................................... 0...–20 %
Hysteresis.................................................................................. approx. 25 % of the response value
Response time ............................................................................................................. t
≤ 500 ms
Number of measuring channels ...................................................................................................... 1
on the load side
F
I
F
R
F
C
N
I
CN
Fig. 6: Fault on the load side
Perform a functional test using a genuine earth
fault, e.g. via a suitable resistance.
........................................................................................ 3(N) AC 230/400 V
n
.............................................................................................0.24...1.1 x U
n
.........................................................................................................50...60 Hz
....................................................................................................50...60 Hz
S
.............................................................................................. 0.85...1.1 x U
S
.........................................................................10 mA...10 A
Δn
RCM470DD_D00229_02_M_DEEN/04.2017
.
n
S
≤ 500 ms
an