ABB Switzerland Ltd
REG 316*4 1MRB520049-Uen / Rev. B
4-8
Settings for a solidly grounded system:
I = 0.25 I
N
= 0.25 A
(The setting I = 0.1·I
N
is usually chosen for a impedance
grounded system.)
Stabilising resistor
R
U
I
S
³
=
=
D
W
60
0 25
240
.
Chosen
R
S
= 300
W
Check of the overvoltage at maximum fault current
A
000
,
100
01
.
0
02
.
0
1000
3
x
x
2
I
3
I
0
sys
sys
N
1
F
=
+
´
=
+
=
I
A
2
100 000
1
1000
100
=
=
,
,
D
U
i
= R
S
I
2
= 300 x 100 = 30,000 V
U
U
U
U
k
i
k
max
(
)
=
-
2 2
D
V
905
,
6
)
200
000
,
30
(
200
2
2
=
-
=
Since this value exceeds the permissible maximum peak value
of 2,000 V, a non-linear resistor must be connected across the
circulating current circuit to limit the voltage. Shorting contacts
may also be necessary.
C.t specification:
Rated currents
1000/1 A
Winding resistance
R
2
£
5
W
Knee-point voltage
U
k
= 200 V
Magnetising current
I
2m
£
2% I
2N
i.e. I
2m
£
0.02 A
at U
2
= 60 V
The c.t’s must conform to British Standard 3938, Class X.
The c.t’s should also:
·
have evenly distributed secondary windings on a toroidal
core (i.e. to minimise the secondary leakage flux)
·
not have any winding correction.
Summary of Contents for REG316 4 Series
Page 4: ......
Page 6: ......
Page 90: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 52 ...
Page 96: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 58 ...
Page 108: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 70 ...
Page 116: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 78 ...
Page 142: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 104 ...
Page 148: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 110 ...
Page 154: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 116 ...
Page 176: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 138 ...
Page 182: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 144 ...
Page 190: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 152 ...
Page 216: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 178 ...
Page 234: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 196 ...
Page 256: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 218 ...
Page 330: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 292 ...
Page 338: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 300 ...
Page 342: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 304 ...
Page 348: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 310 ...
Page 352: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 314 ...
Page 356: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 318 ...
Page 360: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 322 ...
Page 366: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 328 ...
Page 370: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 332 ...
Page 374: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 336 ...
Page 388: ...ABB Switzerland Ltd REG 316 4 1MRB520049 Uen Rev F 3 350 ...
Page 427: ...REG 316 4 1MRB520049 Uen Rev B ABB Switzerland Ltd 4 29 Fig 4 13 Locus of the load angle d 90 ...
Page 444: ......
Page 626: ......
Page 628: ......
Page 684: ......
Page 688: ......
Page 802: ......
Page 810: ......
Page 824: ......
Page 825: ......
Page 826: ......
Page 827: ......
Page 828: ......
Page 829: ......
Page 830: ......
Page 831: ......
Page 832: ......
Page 833: ......
Page 834: ......
Page 835: ......
Page 836: ......
Page 837: ......
Page 838: ......
Page 839: ......
Page 840: ......
Page 841: ......
Page 842: ......
Page 843: ......
Page 844: ......
Page 845: ......
Page 846: ......
Page 847: ......
Page 848: ......
Page 849: ......
Page 850: ......
Page 851: ......
Page 852: ......
Page 853: ......
Page 854: ......
Page 855: ......
Page 856: ......
Page 857: ......
Page 858: ......
Page 859: ......
Page 860: ......
Page 861: ......
Page 862: ......
Page 863: ......
Page 864: ......
Page 865: ......
Page 866: ......
Page 867: ......
Page 868: ......
Page 869: ......
Page 870: ......
Page 871: ......
Page 872: ......
Page 873: ......
Page 874: ......
Page 875: ......
Page 876: ......
Page 877: ......
Page 878: ......
Page 879: ......
Page 880: ......
Page 881: ......
Page 882: ......
Page 883: ......
Page 884: ......
Page 885: ......
Page 886: ......
Page 887: ......
Page 888: ......
Page 889: ......
Page 890: ......
Page 891: ......
Page 892: ......
Page 893: ......
Page 894: ......
Page 895: ......
Page 896: ......
Page 897: ......
Page 898: ......
Page 899: ......
Page 900: ......
Page 901: ......
Page 902: ......
Page 903: ......
Page 904: ......
Page 905: ......
Page 906: ......
Page 907: ......
Page 908: ......
Page 909: ......
Page 910: ......
Page 911: ......
Page 912: ......
Page 913: ......
Page 914: ......
Page 915: ......
Page 916: ......
Page 917: ......
Page 918: ......
Page 919: ......
Page 920: ......
Page 921: ......
Page 922: ......
Page 923: ......
Page 924: ......
Page 925: ......
Page 926: ......
Page 927: ......
Page 928: ......
Page 929: ......
Page 930: ......
Page 931: ......
Page 932: ......
Page 933: ......
Page 934: ......
Page 935: ......
Page 936: ......
Page 937: ......
Page 938: ......
Page 939: ......
Page 940: ......
Page 941: ......
Page 942: ......
Page 943: ......
Page 944: ......
Page 945: ......
Page 946: ......
Page 947: ......
Page 948: ......
Page 949: ......
Page 950: ......
Page 951: ......
Page 952: ......
Page 953: ......
Page 954: ......
Page 955: ......
Page 956: ......
Page 957: ......
Page 958: ......
Page 959: ......
Page 960: ......
Page 961: ......
Page 962: ......
Page 963: ......
Page 964: ......
Page 965: ......
Page 966: ......
Page 967: ......
Page 968: ......
Page 969: ......
Page 970: ......
Page 971: ......
Page 972: ......
Page 974: ......
Page 976: ......