XN2-2 Mains Decoupling Relay (XN22)

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Product number: XN22

Configuration

The relay XN2 of the easy PROFESSIONAL LINE is a universal mains decoupling relay and contains the protective functions required for the mains parallel operation of power stations:

  • Over- and undervoltage protection
  • Over- and underfrequency protection
  • Phase sequence supervision
  • in addition, for the XN2-1: vector surge (fast decoupling of the generator in case of mains failure)
  • in addition, for the XN2-2: df/dt (fast decoupling of the generator via frequency gradient supervision)

2 Wire System Connection XN2
Connecting two-wire system (1∿ 50 … 60 Hz, 60 … 400 V), DIP-switch setting Y

3 Wire System Connection XN2
Connecting three-wire system (3∿ 50 … 60 Hz, 60 … 400 V), DIP-switch setting Δ

4 Wire System Connection XN2
Connecting four-wire system (3/N∿ 50 … 60 Hz, 60 … 400 V), DIP-switch setting Y or Δ

Protection Settings

Parameter Setting Range
V< 75% … 100% × V n (cont.)
V> 100% … 125% × V n (cont.)
f< 97.5% … 100% × f n (cont.)
f> 100% … 102.5% × f n (cont.)
Vector surge tripping ΔΘ or df/dt supervision 1 … 22° el. or 0.5 … 3 Hz/s
tv 5 s (fixed)
Switching hysteresis for V<, V> 3%, 10%
Switching hysteresis for f<, f> 0.25% (fixed)
Blocking voltage VB< 20% … 70% × V n (cont.)

Auxiliary Voltage

Voltage supply via wide-range power supply unit:

Auxiliary voltage range

50 … 750 V DC or

36 … 520 V AC (f = 35 … 78 Hz)

Power consumption

approx. 4 W (terminals A1 and A3)

  • Fast DIN rail mounting    easy and fast mounting
  • Sealable plastic covers    safe (see if anybody has broken the seal)
  • Super easy settings via front buttons    fast without computer
  • LED and output relays fault indication    easy to find out what has happened
  • Compact form factor    fits in small spaces
  • IT security    no way to attack via Ethernet
  • Robust and reliable    well proven reliable quality
  • Wide Range Power Supply    don’t worry about available supply voltage
  • Integrated Self-Test Procedure (via button)    fast and easy checks: relays, LEDs
  • For all relays except XD1-G and except XRI...: optional interface adapter XRS1 (order code XRS1A or XRS1*);

    for all XRI... [except XD1-G]: optional adapter RS485 to USB (order code RSC2485USB1):

      easy doing high precision settings via Windows ® PC software »Smart view«

  • Interconnection of renewable energies (DER – distributed energy resources) to the public grid.

  • Over- / Undervoltage protection.

  • Protection of High, Medium and Low Voltage feeders against overvoltage (insulation damage) and undervoltage.

  • Frequency based protection: Over-/Underfrequency supervision

    Load shedding by ROCOF

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