High potential/HV transformer 30 kVDC isolating volt.

Datasheet as PDF



High potential - high voltage transformer

BV 2378005a

Customer’s demand

In our nuclear-physical lab several ion sources ionise nuclear fission products. For this purpose we built up a 30 kV high voltage platform. The tentative devices like a Penning trap mass spectrometer need a power supply that is at a potential of 30 kV above earth. The whole power is 20 kVA in three phase connection.


We build a 30 kVDC isolating transformer with vector group Dy5n. Like this it’s also possible to operate large monophase unbalanced loads. The high voltage separation is done by a vacuum potting with epoxy resin. The field force during operation is max. 3 kV/mm so the delectric doesn’t polarise too much and is only slightly stressed.

Technical data

BV 2378005a

Power: 20 kVA
Isolating voltage: 30 kVDC
Primary: 3 x 400 V
Secondary: 3 x 400 V
Dimensions: 740 x 430 x 665  mm

Alternative BV 2870001

Power: 25 kVA
Isolating voltage: 35 kVDC
Primary: 3 x 400 V
Secondary: 3 x 400 V
Dimensions: 790 x 430 x 665 mm

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