CD Automation REVO REVEX3PH, Руководство пользователя

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56
REVEX
3PH from 120A to 210A
User’s manual
Caution: High speed fuses are used only for the thyristor protection and can not be used to
protect the installation.
Caution: The warranty of thyristor is null if no proper fuses are used. See tab.
Warning: When it is supply, the Thyristor unit is subject to dangerous voltage, don’t open the
Fuse-holder module and don’t touch the electric equipments.
Internal Fuse
The thyristor unit have internal fuse extrarapid at low I²t for the thyristor protection of against the short-circuits.
The Fuses must have I²t 20% less than thyristor’s I²t. The warranty of thyristor is null if no proper fuses are used.
Type Fuse Code
Current
(A
RMS
)
Vac
Fuse I
2
t value
Suggested A2s
(at 500V)*
Fuse I
2
t value
Suggested A2s
(at 660V)
Quantity for
each phase
120 FU2055920.180 180 660 14280 20400 1
150 FU2055920.200 200 660 17500 25000 1
180 FU2055920.250 250 660 30800 44000 1
210 FU2055920.315 315 660 53900 77000 1
*
I
2
t are multiplied for K value in function of Vac at
500V K is equal to 0,7 (ex:20400 X 0,7 = 14280).
At 660Vsc K is equal to 1.
16
1.2
1.0
0.8
0.6
0.4
0.2
200 400 600 800
0.7
500
Vac
K
(Line voltage)