ABB REU615, Руководство по эксплуатации продукта

Страница: 34 / 60

Table 48. Load shedding (LSHDPFRQ)
Characteristic Value
Operation accuracy f< ±10 mHz
df/dt ±100 mHz/s (in range |df/dt| < 5 Hz/s)
± 2.0% of the set value (in range 5 Hz/
s < |df/dt| < 15 Hz/s)
f< < 80 ms
df/dt < 120 ms
Reset time
< 150 ms
Operate time accuracy ±1.0% of the set value or ±30 ms
Table 49. Load shedding (LSHDPFRQ) main settings
Parameter Function Value (Range) Step
Load shed mode LSHDPFRQ Freq<
Freq< AND df/dt
Freq< OR df/dt -
Restore mode LSHDPFRQ Disabled
Auto
Manual -
Start value Freq LSHDPFRQ 0.800...1.200 x Fn 0.001
Start value df/dt LSHDPFRQ -0.200...-0.005 x Fn 0.005
Operate Tm Freq LSHDPFRQ 80...200000 ms 10
Operate Tm df/dt LSHDPFRQ 120...200000 ms 10
Restore start Val LSHDPFRQ 0.800...1.200 x Fn 0.001
Restore delay time LSHDPFRQ 80...200000 ms 10
Voltage Protection and Control 1MRS757058 D
REU615
Product version: 4.0
34 ABB