ABB 15VHK500 - Page 12

IB
6.2
.
7.7
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1
Page
12
AM
ASEA
BROWN
BOVERI
e
>
<
s
a
> <
7
I Q
> <
1 3
1 6
>
<
1 4
0 4
> <
0 3
Q
2
>
<
0 1
REAR
VIEW
OF
0
«
SECONDARY
DISCONNECTS
15
a
.
13
S
'
V
Y
16
V
139
J
v
v
5
13
LEGEND
9
a
—
Auxiliary
Switch
Contact Ctoaed
When
Breaker
to
Closed
.
b
—
Auxiliary
Switch
Contact
Open
When Breaker
to
dosed
.
LCb
—
Latch
Check
Switch
Contact
Closed
When
Breaker
Operating
Mechanism
to
Reset
LSa
—
Limit
Switch
Contact
Open
When
Springs
Are
Discharged
.
Closed
When
Springs
Are
Charged
.
LSb
—
Limit
Switch
Contact
Closed
When
Springs
Are
Discharged
.
Open
When
Springs
Are
Charged
.
TC
—
Shunt
Trip
CoH
.
X
—
Closing
Latch
Release
Coil
.
Y
—
Control
Relay
Lockout
Coll
.
Ya
—
Normally
Open
Control
Relay
Contact
Yb
—
Normally
Closed
Control
Relay
Contact
.
TB
—
Terminal Block Point
MU
—
Motor Lead
.
CE
—
Coti
Lead
End
.
C
1
,
C
2
—
Terminal
Jumper
{
Control
Device
)
.
—
Female
Secondary
Disconnect
Contact
.
UV
—
Undervoitage
Trip
Device
.
UVb
—
Normally
Closed
Undervoitage
Trip
Device
Contact
69
—
Permissive
Control
Switch
.
BL
—
Blocking
Lever
Switch
(
Open
When
Ground
Switch
Is Locked
In
Ground
Position
)
.
.
±
.
i
.
I
115
6
106
125
TB
1
5
iSb
Y
*
~
I
b
T
2
T
5
J
8
1
»
CE
1
11
fl
14
•
)
6
6
177
CE
2
107
302
70
TB
6
x
°
10
s
A
A
02
14
6
Fig
.
9
—
Typical
DC
Schematic
Diagram
of Control
Circuit
Courtesy of NationalSwitchgear.com