Woodward LS-5 v2 Series - Page 249

Fig. 128: Decoupling overvoltage (example)
The following values are treated similar:
• Overvoltage level 1 (╚═▷ “4.3.1.7 System A Overvoltage (Level 1 & 2) ANSI# 59”)
• Overvoltage level 2 (╚═▷ “4.3.1.7 System A Overvoltage (Level 1 & 2) ANSI# 59”)
•
Undervoltage level 1 (╚═▷ “4.3.1.8 System A Undervoltage (Level 1 & 2) ANSI# 27”)
• Undervoltage level 2 (╚═▷ “4.3.1.8 System A Undervoltage (Level 1 & 2) ANSI# 27”)
• Overfrequency(╚═▷ “4.3.1.3 Phase Shift”)
• Underfrequency (╚═▷ “4.3.1.6 System A Underfrequency (Level 1 & 2) ANSI# 81U”)
Fig. 129: Decoupling voltage increase (example)
•
Voltage increase (╚═▷ “4.3.1.8 System A Undervoltage (Level 1 & 2) ANSI# 27”)
Fig. 130: Decoupling phase shift (example)
The following values are treated similar:
• Phase shift 3-phase (╚═▷ “4.3.1.3 Phase Shift”)
• Phase shift 1-phase (╚═▷ “4.3.1.3 Phase Shift”)
•
Df/dt (╚═▷ “4.3.1.3 Phase Shift”)
249LS-5 v2 Series37650
5 Operation
5.2 Front Panel Access
Released