L&T Electrical & Automation OMEGA, Manual

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3) Mechanical Interlock :
Mechanical Interlock is used for interlocking breakers as per the desired control
scheme. It can interlock up to three Omega ACBs of Fixed/Draw-out/Mixed version. The breakers can be
interlocked in Vertical or Horizontal configuration.
Cable length:
2/3/5 meter, minimum radius at cable bend: 70mm
O - Breaker Open I - Breaker Closed
Possible mounting arrangements:
Type of Interlock
Two Incomers &
One Standby
(2 I/C + 1 S/B)
Two Incomers &
One BusCoupler
(2 I/C +1 B/C)
Three Incomers
(3 I/C)
Two Incomers
(2 I/C)
Interlocks Possible Schematic Diagram Typical Circuit
G
A
B
A B
C
G
A B
C
A
B
C
G
G
G
75 Accessories
4 ) T e r m i n a l A d a p t o r s :
OMEGA ACBs offer wide variety of terminal adaptors for both Fixed & Draw-out versions. Terminal Adaptors
facilitate ease of termination of both Copper & Aluminium busbars.
F r a m e - 1 : 4 0 0 - 2 0 0 0 A
F r a m e - 1 : 2 5 0 0 A , F r a m e - 2 : 4 0 0 - 3 2 0 0 A ,
All dimensions are in mm
For ordering cat nos please refer page no.80
Fr-1 400-2000A Vertical / Horizontal
Configuration
65
Height Frame size
Termination side dimensions (T)
Hole
distance
Thickness
No. of
holes
27 15 2
76 Accessories
Fr-1
Fr-2
2500A
400 - 3200A
Vertical
Vertical / Horizontal
C o n f i g u r a t i o n
98
98
H e i g h t F r a m e s i z e
T e r m i n a t i o n s i d e d i m e n s i o n s ( T )
Hole distance Thickness No. of holes
27 20 3
All dimensions are in mm
For ordering cat nos please refer page no.80
15
65
T
27
C
T
19
20
98
27
T
22
Fr-2 4000A Vertical
150
F r a m e - 2 : 4 0 0 0 A
C o n f i g u r a t i o n H e i g h t / W i d t h F r a m e s i z e
T e r m i n a t i o n s i d e d i m e n s i o n s ( T )
Hole distance Thickness No. of holes
27 3
All dimensions are in mm
For ordering cat nos please refer page no.80
Fr-2 4000A 100 Horizontal
15
0
T
21
27
20 27 20 5
Configuration
Vertical
Horizontal
32
32
23
27
100
T
Terminal Adaptors for Draw-out Version: