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Isolated voltage regulating transformer

A voltage regulating transformer and isolation technology, applied in the direction of transformers, variable transformers, variable inductors, etc., can solve the problem of unsafe output terminals, achieve a wide range of applications, and achieve the effect of electrical isolation

Inactive Publication Date: 2006-01-04
常传忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two defects in this kind of voltage regulating transformer: one is that the input and output ends have common wiring, and when the common line of the input end is connected to the live wire, the output end is not safe to the ground regardless of the voltage level; the other is that in some tests and experiments, it is required The circuit under test is electrically isolated from the power supply, and the contact voltage regulating transformer cannot meet this requirement

Method used

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Embodiment Construction

[0008] Now referring to accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, in conjunction with the embodiment, the isolated voltage regulating transformer of the present invention is described in detail as follows: The isolated voltage regulating transformer of the present invention relates to multi-winding and multi-tap mutual coupling It is composed of three parts: transformer, relay group and relay control circuit. The multi-winding and multi-tap mutual coupling transformer involves four independent windings, and the primary winding is used to connect to a 220V power supply, which is shown in Figure 3 with an input power plug 1 . The housing 2 is the housing support of the isolated voltage regulating transformer of the present invention. On the front panel of the housing 2, a power supply voltage meter 3 representing the power supply voltage and an output voltage meter 4 representing the output voltage are arranged, and an output voltage meter 4 is al...

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Abstract

An isolated slide transformer includes transformer of multiwinding-mutual coupling which is composed of four independer windings with the primary winding being connected to 220V power, the secondary winding being the unit, decade and hundred winding for providing the unit, decade and hundred numberical value of output voltage; the relay which will be in three sets of the unit, decade and hundred and to be connected with corresponding taps of winding separately and the control circuit which can control on-and-off of three sets of relays separately. The output voltage at output end can select the voltage value in three steps of the unit, decade and hundred and the relay can cooperate with transformer tap to realize the regulation of output voltage.

Description

Technical field: [0001] The invention relates to a voltage regulating transformer and a voltage regulating method thereof, in particular to an isolated voltage regulating transformer whose input end and output end are isolated. Background technique: [0002] Commonly used voltage regulating transformers use contact autotransformers inside. By adjusting the position of the sliding head, the number of turns of the secondary loop coil is changed, so as to achieve the purpose of output voltage regulation. There are two defects in this kind of voltage regulating transformer: one is that the input and output ends have common wiring, and when the common line of the input end is connected to the live wire, the output end is not safe to the ground regardless of the voltage level; the other is that in some tests and experiments, it is required The circuit under test is electrically isolated from the power supply, and the contact voltage regulating transformer cannot meet this require...

Claims

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Application Information

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IPC IPC(8): H01F29/02
Inventor 常传忠
Owner 常传忠