Cutler-Hammer Digitrip RMS 510, Инструкция по эксплуатации

Страница: 76 / 180

Page 1 6
l.l.
29-8858
I
Notes: A1 : Wiring to be twisted pair of AWG No. 1 4
to AWG No. 20.
Route Zone Interlocking wiring sepa-
3200 A
)
M a i n
Z 1
rate from power conductors.
1 600 A
)
Q)
2i
1
N
N
Q)
c
2
0
N
"'
Q)
c:
0
N
3
200 A
)
0.5 Sec
1 200 A
Feeder
0.3 Sec
400 A
Branch
0.1 Sec
1 00 A
Z2
Z3
Fig. A. 1 Typical Zone Interlocking (Ground Fault Pro­
tection)
M 1
0. 1 Sec 0 . 1 Sec
M2
DO NOT GROUND any Zone Interlock
Wiring.
A2: The maximum distance between first
and last zone is 250 feet (1 1 0 m).
A3: A Maximum of 20 breakers may be con­
nected in parallel in one Zone.
Legend
= Common (Ungrounded)
= Short Delay Output Signal
to Higher Level Zone
= Short Delay I nput Signal
from Lower Level Zone
= Ground Output Signal
to Higher Level Zone
= Ground Input Signal
from Lower Level Zone
/c
ault at Location 2
2
0.5 Sec
F21
F22
F23
0.1 Sec
0 . 1 Sec
0 . 1 Sec
Fig. A.2 Typical Zone Interlocking Connections with Two Main Breakers (M1, M2) and a Tie Breaker (T) (Short Delay
Protection)
Effective May 1 997
www
. ElectricalPartManuals
. com