Woodward HighPROTEC MRU4-2 G Series, Руководство пользователя

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2.3.2 df/dt: ROCOF (Rate-of-Change-of-Frequency) Protection Settings
df/dt . Mode [Device planning]
use ROCOF Protection Module, general operation
mode.
This setting is fixed according to the G99
requirements and cannot be modified.
Fixed
setting!
df/dt . Function [Protection Para / Set 1…4 / Intercon-Prot / Mains
Decouplg / df/dt]
• Set 1: active
• Set 2: active
• Set 3: active
• Set 4: active
Permanent activation or deactivation of the
module.
This setting is fixed according to the G99
requirements and cannot be modified.
Fixed
setting!
df/dt . df/dt [Protection Para / Set 1…4 / Intercon-Prot / Mains
Decouplg / df/dt]
• Set 1: 1.00 Hz/s
• Set 2: 1.00 Hz/s
• Set 3: 1.00 Hz/s
• Set 4: 1.00 Hz/s
Measured value (calculated): Rate-of-frequency-
change.
This setting is fixed according to the G99
requirements and cannot be modified.
Fixed
setting!
df/dt . t-df/dt [Protection Para / Set 1…4 / Intercon-Prot / Mains
Decouplg / df/dt]
• Set 1: 0.50 s
• Set 2: 0.50 s
• Set 3: 0.50 s
• Set 4: 0.50 s
Trip delay df/dt.
This setting is fixed according to the G99
requirements and cannot be modified.
Fixed
setting!
22 MRU4 MRU4-3.6-EN-G99
2 G99-Specific Protection Settings
2.3.2 df/dt: ROCOF (Rate-of-Change-of-Frequency) Protection Settings