Voltage Transformers
EN MRA4 04/09
Page 51
1
X?.
2
3
4
5
6
7
8
L1
L2
L3
V12
V23
V31
VL1
VL2
VL3
L1
L3
L2
N
VL2' VL3'
V12'
V23'
V31'
VL1'
n
VE'
Three-phase voltage measurement - wiring of the measurement inputs: "star-
connection"
Measurement of the residual voltage VE via auxilliary windings (e-n) "open delta"
e
MRA, MCA => terminal marking X4.
MRN4, MRU4, MRF4 => terminal marking X3.
VE
VL3/
VL31
VL2/
VL23
VL1/
VL12
Connection example Clockwise Rotating Field
Summary of Contents for SEG HighPROTEC MRA4
Page 1: ...MRA4 HighPROTEC Feeder Protection Device Manual DOK HB MRA4E...
Page 3: ...Order Code EN MRA4 04 09 Page 3...
Page 59: ...Navigation Operation Navigation Operation EN MRA4 04 09 Page 59 1 4 2 3 5 7 6 8 9...
Page 378: ...PQS Power Protection Module ANSI 32 37 Page 378 EN MRA4 04 09 P P Q P Q P Q Q Q P S S...
Page 379: ...PQS Power Protection Module ANSI 32 37 EN MRA4 04 09 Page 379 Pr Q P Q P Qr...