Hitachi Relion 650 Series Technical Manual page 88

Section 9
Control
Contact separation
IEC21000970 V1 EN-US
Figure 38:
Controlled closing operation with user-defined/ external target angles based on load type
For controlled closing on any load type, the target points for current making in each phase are
usually defined by the settings that are described in
Table 44:
Interface
CloseTargetL1
CloseTargetL2-L1
CloseTargetL3-L1
LD1CLANL1
LD1CLANL2
LD1CLANL3
LD2CLANL1
LD2CLANL2
LD2CLANL3
Table continues on next page
82
OpenTargetL1 = 60°
OpenTargetL2-L1 = -120°
OpenTargetL3-L1 = 90°
-120°
90°
60°
instant L2
Reference
point
Target contact separation instants for all three phases
Interfaces for defining controlled closing targets
Type
Setting
Setting
Setting
Input
Input
Input
Input
Input
Input
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― Phase L1
― Phase L2
― Phase L3
Constant separation
instant L3
Contact separation
instant L1
Table 44.
Description
Current making target in electrical degrees relative to a
positive-going reference voltage zero crossing, for phase L1
Current making target in electrical degrees relative to
CloseTargetL1, for phase L2
Current making target in electrical degrees relative to
CloseTargetL1, for phase L3
External (channel 1) current making target for phase L1, in
electrical degrees relative to a positive-going reference
voltage zero crossing
External (channel 1) current making target for phase L2, in
electrical degrees relative to LD1CLANL1
External (channel 1) current making target for phase L3, in
electrical degrees relative to LD1CLANL1
External (channel 2) current making target for phase L1, in
electrical degrees relative to a positive-going reference
voltage zero crossing
External (channel 2) current making target for phase L2, in
electrical degrees relative to LD2CLANL1
External (channel 2) current making target for phase L3, in
electrical degrees relative to LD2CLANL1
1MRK 511 557-UEN Rev. A
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