Non-Volatile Memory - ABB RELION 620 Series Technical Manual

1MAC504801-IB E
3.8
620 series ANSI
Technical Manual
Name Type
PDNSPTOC1 rat. FLOAT32
I2/I1
Frequency FLOAT32
Frequency FLOAT32
gradient
Conductance Yo FLOAT32
Susceptance Yo FLOAT32
Angle VG - IG FLOAT32
Angle VBC - IA FLOAT32
Angle VCA - IB FLOAT32
Angle VAB - IC FLOAT32
Angle VG2 - IG2 FLOAT32
Angle VBC2 - IA2 FLOAT32
Angle VCA2 - IB2 FLOAT32
Angle VAB2 - IC2 FLOAT32

Non-volatile memory

In addition to the setting values, the protection relay can store some data in the non-volatile
memory.
• Up to 1024 events are stored. The stored events are visible in LHMI and WHMI only
• Recorded data
• Fault records (up to 128)
• Maximum demands
• Circuit breaker condition monitoring
• Latched alarm and trip LEDs' statuses
Values (Range) Unit
0.00...999.99 %
30.00...80.00 Hz
-10.00...10.00 Hz/s
-1000.00...1000.0 mS
0
-1000.00...1000.0 mS
0
-180.00...180.00 deg
-180.00...180.00 deg
-180.00...180.00 deg
-180.00...180.00 deg
-180.00...180.00 deg
-180.00...180.00 deg
-180.00...180.00 deg
-180.00...180.00 deg
Section 3
Basic functions
Description
PDNSPTOC1 ratio
I2/I1 ratio I2/I1
Frequency
Frequency
gradient
Conductance Yo
Susceptance Yo
Angle residual
voltage - residual
current
Angle phase B to
phase C voltage -
phase A current
Angle phase C to
phase A voltage -
phase B current
Angle phase A to
phase B voltage -
phase C current
Angle residual
voltage - residual
current (b)
Angle phase B to
phase C voltage -
phase A current (b)
Angle phase C to
phase A voltage -
phase B current (b)
Angle phase A to
phase B voltage -
phase C current (b)
87