ABB REF615 J User Manual

If CB failure mode is set to the "Breaker status" mode, the resetting logic requires
that the circuit breaker is in the open condition. If the CB failure mode setting is set
to "Both", the logic resets when any of the above criteria is fulfilled.
Also the activation of the BLOCK input resets the function.
AND
AND
AND
Timer 2 elapsed
From Timer
2
Timer 1 elapsed
From Timer
1
TON
150.0
ms
AND
CB failure mode ”Current”
CB failure mode ”Breaker
status
”
POSCLOSE
CB failure trip mode
“
1 out of 4"
I
0
>
From Level detector
2
I >
From Level detector
1
AND
Set
Reset
Enable
t
imer
BLOCK
AND
OR
CB failure trip mode
“
2
out of 4"
I
0
>
From Level detector
2
I >
From Level detector
1
AND
OR
Start latching mode
”
Level sensitive”
AND
START
GUID-61D73737-798D-4BA3-9CF2-56D57719B03D V3 EN
Figure 286: Start logic
Timer 1
Once activated, the timer runs until the set Retrip time value has elapsed. The time
characteristic is according to DT. When the operation timer has reached the value
set with Retrip time, the retrip logic is activated. A typical setting is 0 - 50 ms.
Timer 2
Once activated, the timer runs until the set CB failure delay value has elapsed. The
time characteristic is according to DT. When the operation timer has reached the
set maximum time value CB failure delay, the backup trip logic is activated. The
value of this setting is made as low as possible at the same time as any unwanted
operation is avoided. A typical setting is 90 - 150 ms, which is also dependent on
the retrip timer.
Section 5 1YHT530004D05 D
Protection related functions
544 615 series
Technical Manual

ABB REF615 J Specifications

General

Type	Feeder Protection Relay
Nominal Frequency	50/60 Hz
Rated Current	1 A / 5 A
Binary Outputs	Up to 8
Communication Protocols	IEC 61850, Modbus, DNP3
Mounting	Flush mounting
Protection Functions	Overcurrent, Earth fault, Under/Over voltage
Operating Temperature	-25°C to +55°C
Ingress Protection	IP54
Weight	Approximately 1.5 kg