Product overview
EL34xx
30
Version: 1.5
WARNING
WARNING Risk of electric shock!
The complete wiring of the EL34xx must be protected against accidental contact and equipped with associ-
ated warnings! The insulation should be designed for the maximum conductor voltage of the system to be
measured!
The EL34xx allows a maximum voltage of 480 V for normal operating conditions. The conductor voltage on
the current side must not exceed this value! For higher voltages, an intermediate transformer stage should
be used!
An EL34xx is equipped with a protection impedance of typically 1.2 MΩ on the voltage measurement side. If
the neutral conductor is not connected and only one connection on the side of the voltage measurement is
live, the resulting voltage against earth in a 3-phase system with a phase-to-phase voltage of 400 V
AC
is
230 V
AC
. This should also be measured on the side of the current measurement using a multimeter with an
internal resistance of 10 MΩ, which does not represent an insulation fault.
Connection cable for current transformers
Please note the following minimum power values for current transformers to be connected:
Rated secondary transformer current
1 A
1 A
1 A
1 A
5 A
5 A
5 A
5 A
Cross-section
0.5 mm²
1 mm²
1.5 mm²
2.5 mm²
0.5 mm²
1 mm²
1.5 mm²
2.5 mm²
1 m
0.3
0.2
0.2
0.2
2.4
1.3
0.9
0.6
2 m
0.4
0.3
0.3
0.2
4.6
2.4
1.7
1.1
3 m
0.5
0.3
0.3
0.3
6.8
3.5
2.4
1.5
4 m
0.6
0.4
0.3
0.3
9.0
4.6
3.1
2.0
5 m
0.6
0.4
0.3
0.3
11.2
5.7
3.9
2.4
10 m
1.1
0.6
0.5
0.4
22.2
11.2
7.5
4.6
20 m
2.0
1.1
0.8
0.6
44.2
22.2
14.9
9.0
30 m
2.8
1.5
1.1
0.7
66.2
33.2
22.2
13.4
40 m
3.7
2.0
1.4
0.9
88.2
44.2
29.5
17.8
50 m
4.6
2.4
1.7
1.1
110.2
55.2
36.9
22.2
100 m
9.0
4.6
3.1
2.0
220.2
110.2
73.5
44.2
Cable length
Minimum operating load in VA for current transformers with copper cables and 80 °C
operating temperature
Additional measuring devices in the current circuit
Please note that the addition of additional measuring devices (e.g. ammeters) in the current circuit can lead
to a significant increase in the total apparent power.
Furthermore, connection I
N
of the EL34xx must represent a star point for the three secondary windings.
Additional measuring devices therefore have to be potential-free and must be wired accordingly.
Содержание EL34 Series
Страница 1: ...Documentation EL34xx 3 phase energy and power measurement terminals 1 5 2019 09 05 Version Date ...
Страница 2: ......
Страница 52: ...Mounting and wiring EL34xx 52 Version 1 5 Fig 35 Other installation positions ...
Страница 58: ...Mounting and wiring EL34xx 58 Version 1 5 EL3453 LEDs and connection Fig 40 EL3453 LED s ...
Страница 92: ...Commissioning EL34xx 92 Version 1 5 Fig 86 Incorrect driver settings for the Ethernet port ...
Страница 103: ...Commissioning EL34xx 103 Version 1 5 Fig 105 EtherCAT terminal in the TwinCAT tree left TwinCAT 2 right TwinCAT 3 ...
Страница 130: ...Commissioning EL34xx 130 Version 1 5 Fig 147 Process Data tab SM3 EL3443 ...
Страница 131: ...Commissioning EL34xx 131 Version 1 5 Fig 148 Process Data tab SM3 EL3453 ...
Страница 132: ...Commissioning EL34xx 132 Version 1 5 Fig 149 Process Data tab SM3 EL3483 ...
Страница 160: ...Commissioning EL34xx 160 Version 1 5 Index F802 PMX Guard Settings ...
Страница 183: ...Commissioning EL34xx 183 Version 1 5 Index F802 PMX Guard Settings ...
Страница 205: ...Commissioning EL34xx 205 Version 1 5 Index 1C13 TxPDO assign ...
Страница 214: ...Commissioning EL34xx 214 Version 1 5 Index F802 PMX Guard Settings ...
Страница 242: ...Commissioning EL34xx 242 Version 1 5 Index 1C13 TxPDO assign ...
Страница 259: ...Application examples EL34xx 259 Version 1 5 7 Application examples ...