ABB ACH580-31, Руководство по оборудованию

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·
(430 V)
2
600 kVA
= 22.19 mohm Z
k
= z
k
·
U
N
2
S
N
= 0.072
m
·
0.398
ohm
km
= 67.66 mohm
R
c
= 170
m · 0.082
ohm
km
= 13.94 mohm X
c
= 170
=
410 V
2 · (67.66 mohm)
2
+ (22.19 mohm + 13.94 mohm)
2
I
k2-ph
= 2.7 kA
The calculated short-circuit current 2.7 kA is higher than the minimum short-circuit
current of the drive aR fuse type 170M3817 (900 A). -> The 690 V aR fuse (Bussmann
170M3817) can be used.
Fuses (UL)
The UL Listed fuses in this manual are required for branch circuit protection and
required per NEC. The drives are suitable for use on a circuit capable of delivering
not more than 100 kA symmetrical amperes (rms) at 480 V maximum when
protected by the fuses described below.
ABB recommends Class T fuses listed below. Also allowed are UL Listed 248-8
Class J fast acting, time delay, and high speed fuses, 248-4 Class CC fast acting
fuses and 248-17 Class CF fast acting and time delay fuses of the same nominal
voltage and current rating.
Refer to notes below the tables.
UL (one fuse per phase) Input current ACH580-
31-…
UL class Bussmann
type
Voltage rating Nominal cur-
rent
V A A
3-phase Un = 480 V
T JJS-15 600 15 7.0 07A6-4
T JJS-20 600 20 9.0 012A-4
T JJS-25 600 25 12.0 014A-4
T JJS-35 600 35 17.0 023A-4
T JJS-40 600 40 24 027A-4
T JJS-50 600 50 29 034A-4
T JJS-60 600 60 34 044A-4
T JJS-80 600 80 44 052A-4
T JJS-90 600 90 54 065A-4
T JJS-110 600 110 66 077A-4
T JJS-150 600 150 82 096A-4
T JJS-200 600 200 111 124A-4
182 Technical data