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Rated power (VA)
Number of phase (single phase or three phase)
Frequency (Hz)
Primary winding:
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Input rated voltage (Vrms)
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Intermediate taps, if needed (Vrms)
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If three phase, vector group (delta, wye, or other)
Secondary winding(s):
(All the data are needed for
each secondary winding:)
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Full load output voltage (Vrms)
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Full load current (Irms)
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Intermediate taps, if needed (usually current is calculated on
the base of the highest output voltage)
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If three phase, vector group (delta, wye, or other)
Additional information:
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Full load regulation
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Isolation voltage
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Earth screen
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Intermittance (if lower than 100%)
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type of terminations (specify type, size, position.)
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Protection (IP, NEMA classification)
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Isolation class (I, II, III)
Environment information:
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Ambient temperature (ºC or ºF)
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Temperature class (A,B,E,F,H according to IEC standards)
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Cooling system (natural air –AN-, forced cooling –AF-)
Phisical and mechanical information:
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Max dimensions (width, depth, height)
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Pasticular mounting conditions
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Construction type (open, enclosed, sealed)
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Special marking requests (logo, hazardous labels)
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