Protective Elements
393
MRU4
DOK-HB-MRU4-2E
Generator Neutral
27TN / VX meas H3 pickup
(undervoltage )
59N pickup (overvoltage )
Third Harmonic
N
e
u
tr
a
l V
ol
ta
g
e
3rd harmonic during normal operation
3rd harmonic during a fault
0%
100%
59
59N
&
t
T
0
t
T
0
27TN
>1
Logics
prevents faulty tripping during dead system / generator standstill
Neutral voltage (depending on
fault location)
Neutral voltage during normal
operation
59N
27TN
Generator Terminals
10% - 100%
0%-20%
Fundamental
59N
100%
27TN
Trip
Содержание High PROTEC MRU4
Страница 1: ...Manual Voltage Relay MRU4 Software Version 3 0 b DOK HB MRU4 2E Revision B English...
Страница 51: ...Installation and Connection Ethernet RJ45 Terminals 51 MRU4 DOK HB MRU4 2E 1 8 TxD TxD RxD n c n c RxD n c n c...
Страница 64: ...Navigation Operation Navigation Operation 64 MRU4 DOK HB MRU4 2E 1 2 3 5 7 6 8 10 9...