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  9. Bender W1-35/8000 User manual

Bender W1-35/8000 User manual

1
Messstromwandler
für EDS473/474
Bestimmungsgemäße Verwendung
Die Messstromwandler W1-35/8000, WS50x80/8000, W10/8000,
WS20x30/8000, W10/8000-6 sind für den Einsatz mit der Isolati-
onsfehler-Sucheinrichtung für IT-Systeme EDS473/474 geeignet.
Sie dienen zur Erfassung des vom PGH473/474 generierten Prüf-
stromes.
Sicherheitshinweise allgemein
Montage, Anschluss und Inbetriebnahme nur durch Elektrofach-
kraft!
Beachten Sie unbedingt:
●die bestehenden Sicherheitsvorschriften,
●das beiliegende Blatt "Wichtige sicherheitstechnische Hin-
weise für BENDER-Produkte",
●den Beipackzettel EDS473 bzw. EDS474,
●das Bedienungshandbuch EDS473 bzw. EDS474.
Funktionsbeschreibung
Die Verbindung zwischen Messstromwandler und Auswertegerät
EDS473-12 bzw. EDS474-12 erfolgt über 2 Anschlussdrähte mit
mindestens 0,75 mm2Querschnitt. Die Leitungslänge darf 40 m
nicht überschreiten.
Alle stromführenden Leiter müssen durch den Messstromwand-
ler geführt werden, jedoch nicht der PE.
Unterschiedliche Ausführungen
Die Messstromwandler unterscheiden sich in Größe und Bau-
form. Sie bestehen aus einem speziellen Magnetkern und einer
Wicklung, die in einem Kunststoffgehäuse montiert sind.
●W1-35/8000 und W10/8000 sind Ringkernwandler;
●WS20x30/8000 und WS50x80/8000 sind teilbare Rechteck-
wandler.
●W10/8000-6 ist ein Montageprofil mit sechs W10/8000 zur
Montage in Einbauverteiler.
Montage und Anschluss.
Montage
Befestigung am Kabel mittels Kabelbindern oder Schraubbefesti-
gung an Laschen.
Wandlerbefestigungen nicht mit magnetisch geschlossenen
Kreisen verbinden. Montage in der Nähe von starken Magnetfel-
dern vermeiden.
Stellen Sie vor Einbau des Gerätes und vor Arbeiten
an den Anschlüssen des Gerätes sicher, dass die An-
lage spannungsfrei ist.
Wird dies nicht beachtet, so besteht für das Personal
die Gefahr eines elektrischen Schlages.
Außerdem drohen Sachschäden an der elektrischen
Anlage und die Zerstörung des Gerätes.
Measuring current transformers
for EDS473/474
Intended use
The measuring current transformers (CTs) W1-35/8000,
WS50x80/8000, W10/8000, WS20x30/8000, W10/8000-6 de-
scribed in this sheet are used in combination with insulation fault
location systems for IT systems EDS473/474. The measuring cur-
rent transformers measure the test current generated by the test
device PGH473/474.
Safety information
Installation, connection and commissioning of electrical equip-
ment shall only be carried out by qualified electricians.
Particular attention shall be paid to:
●the current safety regulations,
●the enclosed sheet „Important safety instructions for
BENDER products“,
●the EDS473 resp. EDS474-12 instruction leaflet,
●the EDS473 resp. EDS474-12 operating manual.
Function
The measuring current transformers have to be connected to the
evaluator EDS473-12 resp. EDS474-12 via 2 wires with a minimum
cross section of 0.75 mm2. The maximum cable length is 40 m.
All live conductors of the system to be monitored except the PE
have to be passed through the CT.
Different versions
There are different versions of measuring current transformers
with different sizes and enclosures. All measuring current trans-
formers consist of a special magnetic core and a winding built
into a plastic enclosure.
●W1-35/8000 and W10/8000 are circular type measuring
current transformers,
●WS50x80/8000 and WS20x30/8000 are split-core type
measuring current transformers,
●W10/8000-6 is a mounting angle with six included W10/
8000 ready for installation in built-in distributors.
Installation and connection.
Installation
Fixing directly on the cable with cable ties or screw mounting. Do
not connect the CT fixing parts with magnetically closed circuits.
Avoid the installation in proximity of strong magnetic fields.
Measuring current transformers not conneted to an evaluator
must be short-circuited (terminals k, l) via a bridge (min. 1.5 mm2)
and connected to PE.
Prior to installation and before work activities are
carried out on the connecting cables, make sure that
the mains power is disconnected.
Failure to comply with this safety information may
cause electric shock to personnel.
Furthermore, substantial damage to the electrical in-
stallation and destruction of the device might occur.
W1-35/8000 ... WS20x30/8000
108008 / 08.03
Deutsch English
2108008 / 08.03
W1-35/8000 ... WS20x30/8000
Dimension diagrams
Figure 1: Dimension diagrams, dimensions in mm;
A = 6 x connecting cable, length approx. 2 m
Dimensions (mm), weight (g)
Maßbilder
Abb. 1: Maßbilder, alle Maße in mm;
A = 6 x Anschlusskabel ca 2 m lang
Abmessungen (mm), Gewichte (g)
Typ
Type ABCD
EGewicht
Weight
W10/8000 37 2000 - - 10 80
W10/8000-6 - 2000 - - - 650
W1-35/8000 100 79 26 48,5 35 250
WS20x30/8000 20 30 51 89 111 1000
WS50x80/8000 50 80 78 114 145 1100
W1-35/8000
WS20x30/8000 W10/8000-6
W10/8000
WS50x80/8000
3
108008 / 08.03
W1-35/8000 ... WS20x30/8000
Cable routing through the measuring current transformer
Figure2: Cable routing
Schematic diagram
Connection
1. Install the measuring current transformers by connecting
the two wires to the EDS473 or EDS474 under considera-
tion of the technical data (in particular the cable lengths).
2. Short-circuit the measuring current transformers which
are not being used by connecting the contacts S1(k) and
S2 (l) to PE.
3. Pass the conductors to be monitored through the measu-
ring current transformer observing that:
– the PE must not be led through the transformer while
measurements of the residual current are carried out.
– the conductor is to be passed through the measuring
current transformer symmetrically at a right angle.
4. Always use a common terminal strip for the S2 (l) connec-
tions of the measuring current transformers. Consider the
max. cable lenght of 25 cm between terminal strip and
EDS47x-12.
Mögliche Leitungsführung durch den Messstromwandler
Abb. 2: Leitungsführung
Prinzipschaltbild Messstromwandler
Anschluss
1. Schließen Sie die Messstromwandler mit zwei Anschluss-
drähten an das EDS473 oder EDS474 an. Beachten Sie
dabei die Angaben in den technischen Daten (insbeson-
dere die Leitungslängen).
2. Schließen Sie nicht benutzte Messstromwandler kurz. Ver-
binden Sie dazu die Kontakte S1(k) und S2 (l) mit PE.
3. Führen Sie die zu überwachenden Leiter durch den Mess-
stromwandler. Beachten Sie dabei:
– Der PE darf nicht durch den Messstromwandler geführt
werden.
– Leiter möglichst symmetrisch und rechtwinklig durch
den Messstromwandler führen.
4. S2 (l)-Anschlüsse der Messstromwandler immer über eine
gemeinsame Klemmleiste anschließen. Maximale Lei-
tungslänge zwischen Klemmleiste und EDS47x-12: 25 cm
PE L1 L2 L3
N
PE L1 L2 L3
N
PE L+ L- L1 L2 L3
4108008 / 08.03
W1-35/8000 ... WS20x30/8000
Wiring diagram (example)
Figure 3: Connection to EDS473/EDS474
Commissioning
1. Prior to commissioning, check proper connection of the
transformer
2. If an EDS473 or an EDS474 signals a fault immediately after
commissioning, check the operating circuit and the con-
nected loads upstream the devices for insulation faults.
Standards
DIN EN 60044-1:2001-11
Measuring current transformers - Part 1: Current transformers
(IEC 60044-1:1999 + A1:2000); German version EN 60044-1:1999 +
A1:2000
It is recommended to carry out a functional test using a
genuine earth fault, e.g. via a suitable resistance.
Anschlussschaltbild (Beispiel)
Abb. 3: Anschluss an EDS473/EDS474
Inbetriebnahme
1. Kontrollieren Sie vor der Inbetriebnahme den ordnungs-
gemäßen Anschluss des Messstromwandlers.
2. Meldet das EDS473 bzw. EDS474 bei der Inbetriebnahme
sofort einen Fehler, so überprüfen Sie den nachgeschalte-
ten Betriebsstromkreis und daran angeschlossene Ver-
braucher auf Isolationsfehler.
Normen
DIN EN 60044-1:2001-11
Messwandler - Teil 1: Stromwandler (IEC 60044-1:1999 +
A1:2000); Deutsche Fassung EN 60044-1:1999 + A1:2000
Führen Sie eine Funktionsprüfung mittels eines echten
Erdschlusses durch, ggf. über einen dafür geeigneten
Widerstand.
5
108008 / 08.03
W1-35/8000 ... WS20x30/8000
Technical data
Insulation coordination according to IEC 60664-1:
Rated voltage Um................................................................................................................AC 630 V
Rated impulse voltage/pollution degree................................................................................ 6 kV/3
Measuring circuit
Rated transformation ratio................................................................................................... 8000 / 1
Rated transformation ratio............................................................................................. 1 A /125 µA
Rated burden ...........................................................................................................................24 kΩ
Max. rated primary current ...........................................................................................................1 A
Min. rated primary current........................................................................................................ 1 mA
Nominal power..................................................................................................................0.375 mW
Nominal frequency.........................................................................................................50 ... 400 Hz
Internal resistance ....................................................................................................... 500 ... 800 Ω
Secondary overvoltage protection with suppressor diode P6KE6V8CP...................................6.8 V
Accuracy class...................................................................................................................................5
Rated continuous thermal current................................................................................................6A
Rated short-time thermal current...................................................................................0.75 kA /1 s
Dynamic rated current................................................................................................4.2 kA / 30 ms
General data
Standard ..........................................................................................................................IEC60044-1
Shock resistance acc. to IEC 60068-2-27 (built-in) ..................................................... 15 g /11 ms
Bumping IEC60068-2-29 (during transport)................................................................ 40 g / 6 ms
Vibration resistance IEC 60068-2-6 (built-in).....................................................1 g / 10 ... 150 Hz
Vibration resistance IEC 60068-2-6 (Device out of service) .................................2g / 10 ... 150 Hz
Ambient temperature, during operation............................................................... -10 °C ... +55 °C
Ambient temperature, during storage .................................................................. -40 °C ... +70 °C
Climatic category acc. to DIN IEC60721-3-3 ..............................................................................3K5
Operating mode .............................................................................................. continuous operation
Position........................................................................................................................... any position
Connection................................................................................................................ screw terminals
Connection rigid, flexible............................................................................0,2 ... 4 / 0,2 ... 2,5 mm2
Connection flexible with connector sleeve, without/with plastic sleeve .............. 0.25 ... 2.5 mm2
Conductor sizes (AWG) ...........................................................................................................24-12
Type of connection to the measuring current transformer
Single wires ≥ 0.75 mm2.................................................................................................. up to1m
Single wires, twisted ≥ 0.75 mm2..................................................................................up to 10 m
Screened cable ≥ 0.6 mm2 (single-ended connection to PE) e.g. JY(ST)Y 2 x 0.6 ......up to 40 m
Degree of protection according to DIN EN 60529.......................................................................IP40
Protection class, terminals (DIN EN 60529)................................................................................IP20
Screw mounting............................................................................................................................M5
Flammability class............................................................................................................... UL94V-0
Ordering details
Technische Daten
Isolationskoordination nach IEC 60664-1:
Bemessungsspannung Um..................................................................................................AC 630 V
Bemessungs-Stoßspannung/Verschmutzungsgrad..............................................................6 kV/3
Messkreis
Nennübersetzungsverhältnis................................................................................................8000 / 1
Nennübersetzungsverhältnis kn.....................................................................................1 A /125 µA
Nennbürde.............................................................................................................................. 24 kΩ
Primärnennstrom max ..................................................................................................................1 A
Primärnennstrom min...............................................................................................................1 mA
Nennleistung..................................................................................................................... 0,375 mW
Nennfrequenz ................................................................................................................ 50 ... 400 Hz
Innenwiderstand..........................................................................................................500 ... 800 Ω
Sekundärer Überspannungsschutz mit Suppressordiode P6KE6V8CP .....................................6,8 V
Genauigkeitsklasse ...........................................................................................................................5
Thermischer Bemessungs Dauerstrom .........................................................................................6 A
Thermischer Bemessungs Kurzzeitstrom........................................................................0,75 kA/1 s
Dynamischer Bemessungsstrom..................................................................................4,2 kA/30 ms
Allgemeine Daten
Norm ................................................................................................................................IEC60044-1
Schockfestigkeit IEC60068-2-27 (Eingebaut) .............................................................15 g / 11 ms
Dauerschocken IEC60068-2-29 (Transport).................................................................. 40 g / 6 ms
Schwingungsbeanspruchung IEC 60068-2-6 (Eingebaut)..................................1 g / 10 ... 150 Hz
Schwingungsbeanspruchung IEC 60068-2-6 (Gerät außer Betrieb) ...................2g / 10 ... 150 Hz
Umgebungstemperatur, bei Betrieb..................................................................... -10 °C ... +55 °C
Umgebungstemperatur, bei Lagerung................................................................. -40 °C ... +70 °C
Klimaklasse nach DIN IEC60721-3-3 ..........................................................................................3K5
Betriebsart .....................................................................................................................Dauerbetrieb
Einbaulage .............................................................................................................................beliebig
Anschlussart...........................................................................................................Schraubklemmen
Anschlussvermögen Starr / flexibel ...........................................................0,2 ... 4 / 0,2 ... 2,5 mm2
Anschlussvermögen Flexibel mit Aderendhülse, ohne/mit Kunststoffhülse........ 0,25 ... 2,5 mm2
Leitergrößen (AWG).................................................................................................................24-12
Anschlussleitung zum Messstromwandler........................................................................................
Einzeldrähte ≥0,75 mm²......................................................................................................bis 1 m
Einzeldrähte verdrillt ≥0,75 mm²......................................................................................bis 1 0 m
Schirmleitung ≥0,6 mm² (Schirm einseitig an PE) z.B. JY(ST)Y 2 x 0,6 ...........................bis 40 m
Schutzart Einbauten (DIN EN 60529)..........................................................................................IP40
Schutzart Klemmen (DIN EN 60529) ..........................................................................................IP20
Schraubbefestigung.......................................................................................................................M5
Entflammbarkeitsklasse.......................................................................................................UL94V-0
Bestellangaben
Typ /Type
Innendurchmesser
Internal diameter
(mm)
Art.-Nr. / Art. No.
W10/8000 10 B 911 759
W1-35/8000 35 B 911 756
WS20x30/8000 20x30 B 911 764
WS50x80/8000 50x80 B 911 757
W10/8000-6 10 B 911 900
6108008 / 08.03
W1-35/8000 ... WS20x30/8000
Dipl.-Ing. W. Bender GmbH & Co.KG Tel.: +49 (0)6401-807-0 E-Mail: [email protected]
Londorfer Str. 65 •35305 Grünberg Fax: +49 (0)6401-807-259 Internet: http://www.bender-de.com
Postfach 1161 •35301 Grünberg
Alle Rechte vorbehalten.
Nachdruck und Vervielfältigung
nur mit Genehmigung des Herausgebers.
Technische Änderungen vorbehalten!
All rights reserved.
Reprinting and duplicating
only by permission of publisher.
Right to technical modifications reserved!
©2003 BENDER Germany

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