RAIG/RXIG - Overcurrent relay and protection
The current measuring relay type RXIG is a static, instantaneous ac current relay which can be used as over- or undercurrent protection. The instantaneous and time delayed overcurrent protections with RXIG are used in a number of different applications, such as:
- Short-circuit protection
- Earth-fault protection
- Capacitor bank unbalance protection
- Generator interturn short-circuit protection
- Blockable overcurrent relays for busbar protection
- Special applications, such as blocking of tap changer regulation
There are three versions of RXIG available:
- RXIG 21 with straight frequency characteristic
- RXIG 22 which has reduced sensitivity to higher frequencies
- RXIG 28 with extra low ac power consumption
The overcurrent protections RAIG are built-up based upon the overcurrent relay RXIG 2. RAIG is available in several versions, with and without time-lag relay and with different duty on trip outputs.
Main features
- Test switch and trip indication included as standard
- Version with heavy- and medium-duty trip output
- Total setting range of 2,5 mA to 45 A
- High reset ratio enables a setting close to maximum service values
- High continuous current carrying capacity
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