ComAp NPU - Example: Evaluation of under Voltage Protection

NPU, SW Version 1.8, ©ComAp, September 2003
NPU-1.8r2.PDF 11
Example: Evaluation of under voltage protection
t[s]
U[V]
A15
A18
< A18
B4
L2
L1
A16
t[s]
Relay RE3
Close
Open
Relay RE2
t[s]
Close
Open
t[s]
U[V]
A15
B3
B3
< A18
B3B3 A18
A18
B3
L2
L1
A16
t[s]
Relay RE4
Close
Open
Relay RE1
t[s]
Close
Open