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Variac type non-contact shift voltage-reduction power saver for low-voltage lighting

A self-coupling, transformer-type technology, applied in the direction of transformer/inductor coil/winding/connection, transformer, variable transformer, etc., can solve the problems of inability to switch frequently, easy to spark, short service life, etc.

Inactive Publication Date: 2013-11-27
XUCHANG YULONG POWER GENERATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a self-coupling voltage regulating transformer type non-contact step-down step-down power saver, so as to solve the problems of easy ignition, short service life and inability to switch frequently in the existing contact switches. question

Method used

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  • Variac type non-contact shift voltage-reduction power saver for low-voltage lighting

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Embodiment Construction

[0011] The invention is composed of an auto-coupling voltage-regulating transformer, multiple groups of anti-parallel thyristors, a circuit breaker and a control circuit. The coil of the auto-coupling voltage-regulating transformer can be divided into 4 to 8 sections, and the coils of the second to N sections are connected in parallel with a group of thyristors. (k6), 4≤N≤8, and the end of each coil is connected to a group of non-contact switches composed of anti-parallel thyristors, the other end of these non-contact switches and the other end of the load are directly connected to the other end of the power supply an input terminal. The autotransformer appears in the form of a transformer when the thyristor k5 is turned off and the thyristor k6 is turned on; when k5 is turned on and k6 is turned off, it appears in the form of an autovoltage regulator. The anti-parallel thyristor k5 and k6 are interlocked by the control circuit

[0012] (1) The control realizes the non-contac...

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Abstract

The invention discloses a variac type non-contact shift voltage-reduction power saver for lighting power conservation, which consists of a variac, a plurality of groups of anti-parallel thyristors, acircuit breaker and a control circuit, wherein two groups of anti-parallel thyristors are subjected to interlocked control and realize the non-contact switching of an energy-saving state and a non-energy-saving state, other groups of anti-parallel thyristors are taken as non-contact tapping switches connected with taps of a variac coil, and the aims of step voltage regulation and voltage stabilization can be achieved by controlling the conduction of different thyristors through the control circuit. The power saver has reasonable structure, control circuit and control program, avoids the circulation phenomenon during the voltage shifting, and controls the exciting current of the variac during the voltage shifting to be a minimum. The power saver has the advantages of sine waves as output current, non-contact switching, no circulation, small exciting current and the like.

Description

technical field [0001] The invention relates to a non-contact step-down voltage saver, in particular to a non-contact step-down voltage saver for lighting power saving. Background technique [0002] Due to the fluctuation of the grid voltage, the voltage borne by the lighting circuit is often higher than the rated voltage, especially when the grid load is low, the phenomenon of the over-rated voltage of the lighting circuit is more serious. Excessive voltage will not only increase power loss, but also greatly shorten the life of the electric light source. Reducing and stabilizing the voltage of the lighting circuit can achieve the purpose of saving electricity and prolonging the life of the electric light source. [0003] The currently used lighting section uses a contact switch when shifting the voltage. When shifting, the circuit excitation current is large, easy to spark, and the service life is short, so it is not suitable for frequent switching. [0004] The use of no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02H01F29/02H01F27/28
Inventor 张伟张志杰高爽
Owner XUCHANG YULONG POWER GENERATION