The JU
series small and lightweight thyristor regulators for
single-phase loads are characterized with high panel
installation density.
Two control systems, a
phase-angle firing system and a zero-cross firing
system, are built in and can be changed by remote
contacts signal. |
|
 |
|
Phase |
Single-phase |
|
Rated current |
10, 20,
30, 50, 75, 100, 150, 200, 250, 300, 400, 500,
750, 1000A (to be specified) |
|
Rated voltage |
100, 110,
120, 200, 220, 240, 380, 400, 440VAC (to be
specified) |
|
Rated frequency |
50/60Hz
(automatic change) |
|
Allowable frequency fluctuation |
±2Hz of
rated frequency (±1Hz for performance
guarantee) |
|
Working temperature range |
-10 to
55°C (0 to 50°C for performance
guarantee) |
|
Input signal |
Selectable
on terminals of 4 to 20mADC (internal resistance
100 ), 1 to 5VDC (internal resistance 25k), ON-OFF contact signal, and Resistance
signal (10k, manual) |
|
Output range |
0 to 98%
of rated voltage |
|
Minimum load current |
0.5A or
more (at 98% output of rated voltage) |
|
Applicable load |
Resistive
load, inductive load (primary side control of
transformer, phase-angle firing system
only) |
|
Output control system |
Phase-angle firing/zero-cross firing
(selectable depended on models) |
|
Over-current protection |
Thyristor
gate-off (120% or more of rated current, on
built-in or external CT) |
|
Cooling system |
Natural
cooling for 150A or less of rated current Built-in
cooling fan for 200A or more |
|
Other functions |
Soft-start, soft-up/down (1 to 20 seconds),
soft-start at power failure recovery |
|
Dimension |
H150 x W70
x D165mm (for 10A, 20A)
H352 x W60 x D190mm
(for 35A to 75A)
H325 x W128 x D190mm (for 100A
to 250A)
H495 x W128 x D230mm (for 300A to
500A)
H495 x W260 x D350mm (for 750A,
1000A) |
|
Weight |
About 2kg
for 10A, 20A, about 3kg for 30 to 75A, about 7kg
for 100 to 250A, about 12kg for 300 to 500A, about
35kg for 750A, 1000A |
|
 |
|
