Title:
OPEN-LOOP/CLOSED-LOOP CONTROL OF THE SECONDARY VOLTAGE OF LOCAL MAINS SYSTEM TRANSFORMERS BY THE USE OF MAINS-COMMUTATED INVERTERS
Document Type and Number:
WIPO Patent Application WO/2011/127906
Kind Code:
A3
Abstract:
A local mains system transformer or circuit for an electrical distribution transformer for open-loop and/or closed-loop control of the voltage range for each phase for the low-voltage level, with a distribution transformer being followed by at least one additional transformer having at least one primary winding and one secondary winding, with the secondary being connected in series with the phase of the distribution transformer, and with the windings on the primary being controllable by means of a device having a voltage and/or frequency which can be adapted continuously during operation.
Inventors:
HAUSSEL WERNER (DE)
LEHMANN KLAUS (DE)
LEHMANN KLAUS (DE)
Application Number:
PCT/DE2011/000393
Publication Date:
April 26, 2012
Filing Date:
April 13, 2011
Export Citation:
Assignee:
EBERLE GMBH & CO KG A (DE)
HAUSSEL WERNER (DE)
LEHMANN KLAUS (DE)
HAUSSEL WERNER (DE)
LEHMANN KLAUS (DE)
International Classes:
G05F1/24
Foreign References:
| US5355295A | 1994-10-11 | |||
| US5771161A | 1998-06-23 | |||
| JP2000172351A | 2000-06-23 | |||
| US6144191A | 2000-11-07 |
Attorney, Agent or Firm:
SCHUHMANN, Albrecht (Allersberger Str. 185, Nürnberg, DE)
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