Typical 38Kv Vcp-W "Dc" And "Ac" Control Schematics - Eaton Cutler-Hammer VCP-W Instructions For Installation, Operation And Maintenance

Page 22
BREAKER DC CONTROL SCHEMATIC
P
SPRING
WL
CHARGED
INDICATING
LIGHT
1
LS1
bb
M
PS2
24
N
BREAKER AC CONTROL SCHEMATIC
1
SPRING
WL
CHARGED
INDICATING
LIGHT
2
1
LS1
bb
M
PS2
24
2
CS – Breaker Control Switch – close
C
CS – Breaker Control Switch – trip
T
Y – Anti Pump Relay
SR – Spring Release Coil (Close Coil)
M – Spring Charging Motor
ST – Shunt Trip
PR – Protective Relay
– Secondary Disconnect
Figure 5-6 Typical 38kV VCP-W "DC" and "AC" Control Schematics
8796C76H01
CS
GL
C
2 4
5
7
Y
Y
b
SR
b
LC
PS1 Y LS2 LS2
bb aa
6
20
21
8796C76H02
CS
GL
C
4
5
7
Y
b
Y
b
SR
b
LC
PSI Y LS2 LS2
aa
bb
6
21
20
CS
RL PR
T
6
7 8 9 10 3
a
ST
a b a b b
1
a
18 17 15 22
16
19
CS
RL PR
T
9
6 8 10
7
AC (+)
CAP TRIP DEV
a
a
AC (-)
ST a b
1
a
18 17 15
16 19
OPERATION
LS1 Open until springs
aa are fully charged
LS1 Closed until springs
bb are fully charged
LS2 Open until springs
aa are fully charged
LS2 Closed until springs
bb are fully charged
LC Open until mechanism
is reset
PS1 Open in all except between
'Test' and 'Connected' positions
PS2 Closed in all except between
'Test' and 'Connected' positions
I.B. 3A74792H04
U1 U2 U3 U4 U5 U6 U7
a b a b a b
11
U24 U23 U22 U21 U20 U19 U18
AUXILIARY SWITCH #2 OPTIONAL
UV
14
OPTIONS
12
a
ST
2
13
CUSTOMER MUST FURNISH
a THIS "a" CONTACT FROM
AUXILIARY SWITCH WHEN
SECOND TRIP COIL OPTION
IS CHOSEN AND MAKE THE
APPROPRIATE CONNECTIONS.
U1 U2 U3 U4
a b a
11
U24 U23 U22 U21
AUXILIARY SWITCH #2 OPTIONAL
UV
11
3
14
UV
12
b b
14
a
FOR AC UV
ST
TRIP ONLY
2
22
13
CUSTOMER MUST FURNISH
a THIS "a" CONTACT FROM
AUXILIARY SWITCH WHEN
SECOND TRIP COIL OPTION
IS CHOSEN AND MAKE THE
APPROPRIATE CONNECTIONS.
SWITCH TERMINAL
'C' and 'NC'
Brown Switch
'C' and 'NO'
'C' and 'NC'
Black Switch
'C' and 'NO'
'C' and 'NO'
'C' and 'NC'
'C' and 'NO'
U8 U9 U10
a b a b
U17 U16 U15
U5 U6 U7 U8 U9 U10
a
b b a b a b
U20 U19 U18 U17 U16 U15
OPTIONS
Effective 7/97