7SR220 Settings Guide
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Description Range Default
81-4
Under/Over frequency stage 4 operated
Combination of ( BO1, BO2, BO3,
BO4, BO5, BO6, BO7, BO8, BO9,
BO10, BO11, BO12, BO13, BO14,
L1, L2, L3, L4, L5, L6, L7, L8, L9,
L10, L11, L12, L13, L14, V1, V2,
V3, V4, V5, V6, V7, V8, V9, V10,
V11, V12, V13, V14, V15, V16 )
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81-5
Under/Over frequency stage 5 operated
Combination of ( BO1, BO2, BO3,
BO4, BO5, BO6, BO7, BO8, BO9,
BO10, BO11, BO12, BO13, BO14,
L1, L2, L3, L4, L5, L6, L7, L8, L9,
L10, L11, L12, L13, L14, V1, V2,
V3, V4, V5, V6, V7, V8, V9, V10,
V11, V12, V13, V14, V15, V16 )
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81-6
Under/Over frequency stage 6 operated
Combination of ( BO1, BO2, BO3,
BO4, BO5, BO6, BO7, BO8, BO9,
BO10, BO11, BO12, BO13, BO14,
L1, L2, L3, L4, L5, L6, L7, L8, L9,
L10, L11, L12, L13, L14, V1, V2,
V3, V4, V5, V6, V7, V8, V9, V10,
V11, V12, V13, V14, V15, V16 )
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60CTS
CT Supervision element operated
Combination of ( BO1, BO2, BO3,
BO4, BO5, BO6, BO7, BO8, BO9,
BO10, BO11, BO12, BO13, BO14,
L1, L2, L3, L4, L5, L6, L7, L8, L9,
L10, L11, L12, L13, L14, V1, V2,
V3, V4, V5, V6, V7, V8, V9, V10,
V11, V12, V13, V14, V15, V16 )
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60CTS-I Combination of ( BO1, BO2, BO3,
BO4, BO5, BO6, BO7, BO8, BO9,
BO10, BO11, BO12, BO13, BO14,
L1, L2, L3, L4, L5, L6, L7, L8, L9,
L10, L11, L12, L13, L14, V1, V2,
V3, V4, V5, V6, V7, V8, V9, V10,
V11, V12, V13, V14, V15, V16 )
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46BC
46 Broken Conductor element operated
Combination of ( BO1, BO2, BO3,
BO4, BO5, BO6, BO7, BO8, BO9,
BO10, BO11, BO12, BO13, BO14,
L1, L2, L3, L4, L5, L6, L7, L8, L9,
L10, L11, L12, L13, L14, V1, V2,
V3, V4, V5, V6, V7, V8, V9, V10,
V11, V12, V13, V14, V15, V16 )
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74TCS-1
Trip Circuit 1 fail operated
Combination of ( BO1, BO2, BO3,
BO4, BO5, BO6, BO7, BO8, BO9,
BO10, BO11, BO12, BO13, BO14,
L1, L2, L3, L4, L5, L6, L7, L8, L9,
L10, L11, L12, L13, L14, V1, V2,
V3, V4, V5, V6, V7, V8, V9, V10,
V11, V12, V13, V14, V15, V16 )
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74TCS-2
Trip Circuit 2 fail operated
Combination of ( BO1, BO2, BO3,
BO4, BO5, BO6, BO7, BO8, BO9,
BO10, BO11, BO12, BO13, BO14,
L1, L2, L3, L4, L5, L6, L7, L8, L9,
L10, L11, L12, L13, L14, V1, V2,
V3, V4, V5, V6, V7, V8, V9, V10,
V11, V12, V13, V14, V15, V16 )
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74TCS-3
Trip Circuit 3 fail operated
Combination of ( BO1, BO2, BO3,
BO4, BO5, BO6, BO7, BO8, BO9,
BO10, BO11, BO12, BO13, BO14,
L1, L2, L3, L4, L5, L6, L7, L8, L9,
L10, L11, L12, L13, L14, V1, V2,
V3, V4, V5, V6, V7, V8, V9, V10,
V11, V12, V13, V14, V15, V16 )
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