CD Automation Revo M 2PH, Руководство пользователя

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CD Automation srl REVO M User’s Manual
CD-Eng-REVO-M-2PH-30-40A-Thyristors-Units
43
20 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
Spare Part
Current
(ARMS)
I²T at
500Vac
*
(A² sec.)
Vac
Max Power
Lost (W)
030 FU1451/40A 40 525 660 8
035 FU1451/50A 50 1260 660 9
040 FU1451/50A 50 1260 660 9
* I
2
T are multiplied for K value in function of Vac at 500V K is equal
to 0,7 (750 X 0,7 = 525 1800 X 0,7 =1260).
At 660Vsc K is equal to 1.
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.
20.1 Fuses Replacement
Open the Fuse-Holder Pull out the fuse