Rockwell Automation 1395 Digital DC Drive - Manual (Page 73)

Publication 2361-5.01 July 1998
Drive Specifications A-5
Circuit Breaker Settings The 1250A DC drive has a 1200A N-frame circuit breaker with a
1200A plug. The circuit breaker should be set as shown in the
following diagram.
Figure 5
Recommended Circuit Breaker Settings (1250A DC Drive)
The 1650A DC drive has a 1600A R-frame circuit breaker with a
1600A plug. The circuit breaker should be set as shown in the
following diagram.
Figure 6
Recommended Circuit Breaker Settings (1650A DC Drive)
The 3000A DC drive has a 3000A SPB-frame circuit breaker. The
circuit breaker should be set as shown in the following diagram.
Figure 7
Recommended Circuit Breaker Settings (3000A DC Drive)
9vtv‡ vƒÃSHTÃSh‡vtÃQyˆt
5
6
7
8
4
3
2
Short Delay
Pickup • x Ir
Engaged
Remove
In = Ir
Push
to
Trip
Digitrip RMS
Trip Unit
9vtv‡ vƒÃSHTÃSh‡vtÃQyˆt
5
6
7
8
4
3
2
Short Delay
Pickup • x Ir
Engaged
Remove
In = Ir
Push
to
Trip
Digitrip RMS
Trip Unit
Long Delay
Setting (I
R
)
1 x I
n
= I
R
Long Delay
Time
7 Sec
At
6 x I
R
Inst
Setting
2.5 x I
n
Breaker Trips
At 6T
Test Amps
3 I
n
Test
Trip Reset
Unit Status