Coupling Device for Voltage Type VG1200

Coupling Device for measuring of voltages up to 1200 V with NA-Box UFR1002

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Product description

 

Available 4th quarter of 2022

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 VG1200IP 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
  • Max. error 2 %
  • No voltage converters required
  • Display of the correct voltage on the UFR1002IP (scalable)
  • No supply voltage required
  • Housing V4, 70 mm wide

 

Technical Data

Measurement

.......

3AC + 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 accuracy UFR + VG

.......

< ±2%

 

Frequency range

.......

AC 45...65 Hz

 

Overvoltage category

.......

III

 

Pollution degree

.......

2

 

Protection category

.......

II (with UFR1002IP)

 

Rated impulse voltage

.......

16 kV

 

Isolation coordination

.......

Electronics-Housing = 20 mm, reinforced isolation
Phase-Phase = 11,5 mm, basic isolation
Phase-Neutral = 8,0 mm basic isolation

 

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 V4: 90x 70 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

 

Downloads

Datasheet