Parameters Of The Sentron Circuit Breakers (Primary Protection Function) - Siemens SENTRON VL Series System Manual

8.5.10

Parameters of the SENTRON circuit breakers (primary protection function)

The table below contains the parameters of the SENTRON circuit breakers (primary
protection function):
Table 8- 10 Parameters of the SENTRON circuit breakers (primary protection function)
Description
Active parameter set
Time lag class (SENTRON VL
LCD ETU40M only)
Overload parameter I parameter set A
R
(PS A)
Time-lag class t PS A
R
Short-circuit protection instantaneous I
PS A
Short-circuit protection delayed I
Delay time for short-circuit protection t
PS A
Overload protection neutral conductor
I PS A (WL)
N
Overload protection neutral conductor I
(VL)
Ground-fault protection I
g
Delay time for ground-fault protection t
PS A
Ground fault alarm I PS A
g2
Delay time for ground fault alarm t
I t characteristic for overload protection
4
PS A
I t characteristic for delayed short-circuit
2
protection PS A
I t characteristic for ground-fault
2
protection PS A
Thermal memory PS A
Phase loss sensitivity PS A
Cooling time constant PS A
Overload parameter I
R
parameter set B (PS B)
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
Data
point
370
331
333
335
336
i
PS A 337
sd
338
sd
334
365
N
PS A 339
340
g
341
PS A 342
g2
345
343
344
346
347
348
349
Source Source Format
WL VL
ETU ETU Format
(370)
— ETU Format
(331)
ETU ETU unsigned
ETU ETU unsigned
ETU ETU unsigned
ETU ETU unsigned
ETU ETU unsigned
ETU — unsigned
— ETU unsigned c
ETU ETU unsigned
ETU ETU unsigned
ETU — unsigned
ETU — unsigned
ETU — Format
(345)
ETU ETU Format
(343)
ETU ETU Format
(344)
ETU ETU Format
(346)
ETU — Format
(347)
ETU — unsigned
ETU — unsigned
8.5 Function classes
Length Scaling Contained in
(bits)
1 —
8 0
16 0
int
16 – 1
int
16 1 /
int 0 (VL)
16 1 /
int 0 (VL)
16 –3
int
16 0
int
8 0
har
16 0
int
16 – 3
int
16 0
int
16 – 3
int
1 —
1 —
1 —
1 —
1 —
16 0
int
16 0
int
Data library
DS.Byte
DS129.65
DS129.68
DS129.4
DS129.8
DS129.10
DS129.12
DS129.14
DS129.6
DS129.66
DS129.16
DS129.18
DS129.20
DS129.22
DS129.26
DS129.24
DS129.25
DS129.27
DS129.28
DS129.30
DS129.32
191