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RXHL 401 and
RAHL 401
Compact current relay and
protection assemblies
1MRK 509 062-BEN
Issued: February 2000
Status: New
Data subject to change without notice
Features
Three phase compact current relay for:
• Phase overcurrent protection, three
stages
• Earth-fault overcurrent protection, three
stages
• Phase and earth fault overcurrent protec-
tion functions with
-
Three stages, the first stage has select-
able time delay; definite or inverse. The
second and the third stage have definite
time delay
-
Logic for detection and clearance of
intermittent faults
• General characteristics for the relay
-
There are two groups of parameters set-
table and readable through the HMI
-
The dialog with the relay can be made in
English or Swedish
- There are two binary inputs for blocking
or enabling of selected functions. The
binary inputs can also be used for
change of setting groups
- There are five binary output relays,
which can be independently configured
for the different protection functions
- Service values (primary/secondary) and
disturbance information can be pre-
sented through the HMI
- Start, trip can be presented through the
HMI
- The relay has self-supervision with out-
put error signal
- Testing of the output relays and opera-
tion of the binary inputs can be per-
formed through the HMI
General
Compact current
relay RXHL 401
The compact current relay RXHL 401 has a
wide application range from main to back-up
protection for feeders and lines, transformers,
capacitor banks, electric boilers as well as for
generators and motors.
