Coupling Device for Voltage Type VG1200
Coupling Device for measuring of voltages up to 1200 V with NA-Box UFR1002IP
Product description
In order to achieve higher efficiencies and to reduce line losses, inverters with a higher output voltage than the usual 3AC 400 V are often used in large on-site generation systems.
So that the grid and system protection can monitor this high voltage, it must be reduced. This is usually done with voltage converters. With the VG1200 coupling device, an ohmic voltage divider is available that takes on this task. In conjunction with the VG1200 coupling device, the UFR1002IP can measure voltages of up to 1200 V. The display in the UFR1002IP is scalable. This means that the voltages at the input of the VG1200 are displayed and the limits for protection against over- and undervoltage are set accordingly. Both devices together meet the requirements of VDE-AR-N 4110 (feeding into the medium-voltage grid).
- Measuring of voltage up to 1200 V
- Measuring tolerance ≤ 1,2% of nominal voltage (of UFR1002IP)
- No voltage converters required
- Display of the correct voltage on the UFR1002IP (scalable)
- No supply voltage required
- Housing V6, 105 mm wide
Technical Data
Measurement
3 AC + N
Nominal voltage Un L-N
250...690 V
Nominal voltage Un L-L
440...1200 V
Measuring range
0...1,25 Un (continously)
Measuring tolerance UFR1200IP + VG1200
≤ 1,2% of nominal voltage (of UFR1002IP)
Frequency range
AC 45...65 Hz
Overvoltage category
III
Pollution degree
2
Protection category
II (with UFR1002IP)
Rated impulse voltage
10,5 kV
Basic isolation
L1, L2, L3, N
Reinforced isolation
Electronics - Housing
Internal resistance Ri
1,8 MOhm / measuring channel
Residual current (single error)
<0,9 mA @1500 VL-L
Permissible ambient temperature
-20°C…+55°C
Dimensions H x W x D
Design V6: 90x 105 x 58 [mm], Fitting height 55 mm
Attachment
35 mm standard rail according DIN EN 60 715 or screws M4
Protection housing / terminals
IP 30 / IP 20
Weightt
approx. 200 g
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