Hitachi SM 6145, Installation Operation & Maintenance

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STS USASecondary Surge Suppressors USSP)
Copyright SM 6145, Rev. 23, March 2019 1-3
T5 (GND)
-0201
T2
+
_
+
_
-0101
T4
T3
T1
T2 T4
T1 T3
+
+
_
_
-0101
-0201
T6 (GND)
USGA PART NO. N451552
USSP-11 (-0501, 0502,
0503, 0504, 0513, 0514,
0515, 0516)
USSP-10 (-0505, 0506,
0507, 0508, 0517,
0518, 0519, 0520)
+
+
_
_
T2 T4
T1 T3
USSP-10 (-0509, 0510,
0511, 0512, 0521,
0522, 0523, 0524)
+
+
_
_
T5
(GND)
-0201
T2
T1
T4
T3
-0201
T6 (GND)
USSP-21 (-0525)
+
+
+ +
_
_
_
_
USSP-20 (-0526)
T2
T1
T4
T3
T2
T4
T1 T3
USSP-20 (-0527)
T2
T1
T8
T7
-0401
USSP-30 (-0528)
T2
T8
T1
T7
T9
-0401
-0401
USSP-31 (-0529)
-0101
-0101
U
S0
10
5.
00
01
.0
0
Figure 1-2. USG-A Lightning Arrestor Schematic Diagram