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Isolating transformer for printing machine
Phase
Number
Three phases
Capacity
500VA-1000KVA
Input
voltage
660V 440V 380V 220V
Output
voltage
1140V 690V
660V 480V 460V 440V 415V 400V 380V 220V 208V 200V 127V 110V 100V 48V 36V 24V
12V 6.3V
Accuracy
of Output voltage
±1%
Voltage
varitation
≤1.5%
Output
waveform distortion
No distortion (compared with the input
waveform)
Insulation
class
The class of
F,H and HC are optional. Commonly H
class
Temperature:180 degrees
Work
efficiency
Self-type≥99% Induction type(Isolation type)≥95%
Applicable
frequency
50/60Hz
Connection
method
Y/△ Any
combination
(Autotransformer / Isolating Transformer)
Overload
capacity
The rated
load of over 1.2 times for 4 hours is allowed. ( Full load for a long time is allowed)
Noise
≤35dB (Within one meter)
Temperature
rise
≤60℃
Insulation
resistance
≥150MΩ
Electrical
strength
3000VAC/1min
Design
life
20 years
Workplace
Non-corrosive gases and conductive dust
Safety
standards
The Product
meets the international standards of the VDE0550, IEC439, JB5555 and GB226.
Cooling
method
Fan cooling
Stocking situation
380V/220V/220V
10-100KVA
Standard models are in stock;
All specifications are standardized production;
The price is quite reasonable.