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ISOLATION-TRANSFORMER
High Voltage DC Isolation Transformers
High Voltage DC Isolation Transformers are
used to provide AC power to circuits that are
operated at a DC voltage for either polarity above
ground potential. All units are conservatively
designed for continuous operation with high
reliability. Low internal losses eliminate the need for
external cooling in ambient temperatures up to 40
degrees Celsius. Electrostatic shields (one or more)
are provided to reduce voltage stresses and low
voltage coupled noise. Each transformer is
constructed of high quality dielectric materials and
processed to assure long life.
FEATURES
Epoxy encapsulated.
Three single phase units can be arranged for
three phase operation.
Conservative design with high quality dielectric
materials.
Custom available single or three phase units
available for OEM applications.
BENEFITS
Epoxy insulated units meet UL94V-0 flame retardance
specifications.
Low capacitance reduces stored energy at high voltage.
Epoxy eliminates need for oil insulation.
Compact size reduces weight compared to comparable
oil insulated units.
Double shielding reduces ground coupling noise.
Low internal losses eliminates the need for external
cooling.
APPLICATIONS
Testing of insulating liquids in:
Ion implant systems.
Industrial lasers.
Modular systems.
Desposition systems.
Electron beam lithography systems.
Electron beam welding systems.
Medical lasers.
High voltage power supplies.
All types of accelerators.
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TECHNICAL SPECIFICATIONS
The following must be specified when choosing an isolation transformer:
● Isolation Voltage – DC reference voltage with respect to ground at which the equipment will operate.
● Rated kVA – Maximum continuous kVA rating of transformer (after adjustment for harmonics is taken into account).
● Input Voltage – Voltage near ground potential.
● Output Voltage – Voltage above ground reference by the value of DC isolation voltage.
Catalog Number
DC
Isolation
Voltage
kV*
Power
Ratings
kVA
Input
Voltage
V
Output
Voltage
V
Frequency
Hz
Dimensions
L x W x H
inches
Weight
Lbs.
IT25-05E-A-A
25
0.5
115
115
60
7 x 4¾ x 6½
18
IT50-1E-A-A
50
1.0
115
115
50/60
10⅞ x 7⅞ x 14
65
IT50-1E-B-B
50
1.0
220
220
50/60
10⅞ x 7⅞ x 14
65
IT50-1E-AB-A
50
1.0
110 or
220
115
50/60
10⅞ x 7⅞ x 17½
65
IT100-1E-A-A
100
1.0
115
115
50/60
10⅞ x 7⅞ x 17½
65
IT100-1E-B-B
100
1.0
220
220
50/60
10⅞ x 7⅞ x 17½
65
IT100-1E-AB-A
100
1.0
110 or
220
115
50/60
16 x 11½ x 17½
65
IT50-5E-A-A
50
5.0
120
120
50/60
16 x 11½ x 17½
200
IT50-5E-B-B
50
5.0
220
220
50/60
16 x 11½ x 20
200
IT100-5E-BC-AJ
100
5.0
120 or
240
208 or
220
50/60
16 x 11½ x 20
200
IT100-5E-B-B
100
5.0
220
220
50/60
16 x 11½ x 20
200
IT100-5E-AC-AB
100
5.0
115 or
208
115 or
220
50/60
16 x 11½ x 20
200
* Negative rating. Consult factory for positive rating.
ADDITIONAL BENEFITS
● Simplified installation and mounting due to small size and low weight.
● Less stored energy.
● Flame retardant materials meet NFPA, SEMICON, and other regulation.
● Extended tracking and puncture path.
● More durable/longer life due to high dielectric strength of cast epoxy.
● No exposed windings to attract dust/dirt and cause flashovers.
● Shield constructions helps elimintate stress on high voltage windings caused by system transients.