Hitachi Relion 650 Series Technical Manual page 90

Section 9
Control
Table 45:
Load Type
Capacitor, (coupled)
reactor, transmission
line, power cable
(Coupled)
transformer
Example 2; If LOADTYPE = "Power transformer" or "Coupled transformer", InputSelect = "Load1",
LD1CLANL1 = 90°, LD1CLANL2 = 120° and LD1CLANL3 = ‑60°, then L3 will be first to close and the
target instants are as shown in
IEC21000971 V1 EN-US
Figure 39:
84
Handling of Close commands for different load types
CloseStrategySrc
(any)
Internal only
External control
External only
External/ block
External/bypass
Figure
LD1CLANL1 = 90°
LD1CLANL2 = 120°
LD1CLANL3 = -60°
-60°
120°
90°
Energizing
instant L3
Reference
point
Target energization instants for all three phases
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EXTSTGY Closing Targets taken from
(any) CloseTargetL1
CloseTargetL2-L1 ,
CloseTargetL3-L1
(any) CloseTargetL1
CloseTargetL2-L1 ,
CloseTargetL3-L1
0 CloseTargetL1
CloseTargetL2-L1 ,
CloseTargetL3-L1
1 LDxCLANL1,
LDxCLANL2,
LDxCLANL3
(any) LDxCLANL1,
LDxCLANL2,
LDxCLANL3
0
1 LDxCLANL1,
LDxCLANL2,
LDxCLANL3
0
1 LDxCLANL1,
LDxCLANL2,
LDxCLANL3
39.
― Phase L1
― Phase L2
― Phase L3
Energizing
instant L2
Energizing
instant L1
1MRK 511 557-UEN Rev. A
Type of operation
Controlled closing
Controlled closing
Controlled closing
Controlled closing
Controlled closing
No switching/
Operation blocked
Controlled closing
Uncontrolled closing/
Operation bypassed
Controlled closing
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