The following COMBIFLEX® units are suitable for the protection of transformers:
RXEDK/RAEDK
Time-over/undervoltage relay and protection assemblies
RXHL/RAHL
Compact overcurrent relays RXHL 4xx and line protection RAHL 4xx
RXIDG/RAIDG
Earth-fault relay and protection assemblies for EHV and HV systems
RXIDK/RAIDK
Time-overcurrent/earth-relay and protection assemblies
RXLK/RALK
Transformer and generator time-overexcitation relay and protection assemblies
RXVK/RAVK
Thermal overcurrent relay and protection assemblies
RXZK/RAZK
Impedance relay and protection assemblies