A-016
HYW3
Series Intelligent Universal Circuit Breaker
C
T
e
rm
in
a
l p
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w
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r d
is
tr
ib
u
tio
n
D
In
d
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ia
l c
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tr
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p
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te
c
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E
p
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A
P
rim
a
ry
p
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d
is
tr
ib
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tio
n
B
S
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c
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d
a
ry
d
is
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A
Primary power distribution
F
G
P
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H
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ts
Figure 5 High-voltage fuse compatibility
Figure 6 Express inverse time limit 2 (general purpose)
Figure 7 Asymmetric grounding protection
Figure 8 Leakage protection (external leakage transformer)
3.1 Current setting value Ir and tolerance of the release
Table 4
Long time delay
Short time delay
Instantaneous
Grounding fault
Ir
Tolerance
Isd
Tolerance
Ii
Tolerance
Ig
Tolerance
(0.4
～
1)In+OFF
±10%
(1.5
～
15)Ir+OFF
±10%
(1.0
～
20)Ir+OFF
±15%
(0.2
～
1.0)In+OFF
±10%
Note: When three sections of protection are available at the same time, the setting values cannot cross, and Ir < Isd < Ii.
