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3–6
Regenerative Brake Operation
Regenerative Brake
Sizing
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This is the peak current the 1336 REGEN Package can return
to the AC utility. For any regenerative application, the peak
AC current calculated in Step 8 (
current calculated in Step 9 (
rated current of the 1336 REGEN Package, the 1336 REGEN
Package will be operating at its overload region for some
portion of the application cycle.
The 1336 REGEN Package can operate for 1 minute at an
overload of 150% of rated current. At 140% of rated current,
overload time is approximately 77 seconds. Shown below are
the allowable operating times over a range of rated currents.
160
150
140
130
120
110
100
1
10
Overload Time (Seconds)
Figure 3.2 — 1336 REGEN Overload Rating
10. Calculate the overload current for your application (
To calculate the overload current for your application (
divide the peak AC current calculated in Step 8 (
rated current of the 1336 REGEN Package you plan to use.
I
=
I
PK
1
————
I
RATED
I
Where
= The nameplate current of the 1336 REGEN
RATED
Remember
must be less than 150% of the 1336 REGEN
I
PK
Package you plan to use.
See page 3-8 for information on paralleling regenerative
brakes.
), must be less than the peak
I
1
). Because
is greater than the
I
I
OL
1
100
1000
I
PK
) by the
I
1
Package
10000
).
),
I
PK
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