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Boost and protection device of auto transformer

An autotransformer, protection device technology, applied in emergency protection circuit devices, transformers, variable transformers, etc., can solve problems such as damage to equipment

Inactive Publication Date: 2016-02-24
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] From the above analysis, it can be seen that if the autotransformer is used in a circuit to increase the voltage, there is a potential danger of damage to the equipment due to an unlimited increase in voltage.

Method used

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  • Boost and protection device of auto transformer
  • Boost and protection device of auto transformer
  • Boost and protection device of auto transformer

Examples

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Embodiment Construction

[0024] figure 2 , image 3 It shows the step-up and protection device of the autotransformer, including the autotransformer B with taps, including the step-up circuit: the live wire and the neutral wire of the 220V AC power supply are respectively connected to the live wire terminal and the neutral wire terminal, and the live wire terminals are sequentially The power switch K and the input fuse BX1 are connected in series to the tap of the autotransformer B, one end A of the main coil AX of the autotransformer B is connected to one end of the output fuse BX2, and the other end of the output fuse BX2 is connected to a The load voltage output terminal, the neutral line terminal is connected to the other end X of the main coil AX of the autotransformer B through a wire, the other end X of the main coil AX is connected to another load voltage output terminal through a wire, and the voltmeter V is connected in series Between the two load voltage output terminals; the above-mentio...

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PUM

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Abstract

A boost and protection device of an auto transformer relates to a voltage rise and protection device. According to a boost circuit, the fire wire and the zero line of a 220V AC power supply are respectively connected to a fire wire terminal and a zero line terminal, the fire wire terminal is sequentially connected with a power supply switch and an input fuse tube in series and then is connected to a tap of the auto transformer B, one end of a main coil of the auto transformer is connected with one end of an output fuse tube, the other end of the output fuse tube is connected with a load voltage output terminal, the zero line terminal is connected with the other end of the main coil, the other end of the main coil is connected with another load voltage output terminal, and a voltmeter is connected in series between the two load voltage output terminals. The boost circuit is disposed in a box body, a movable contact a is disposed on a hand-held rotating column, the hand-held rotating column can be rotationally disposed on the box body, and the box body is provided with a voltage indication dial and a boost limit mechanism. The boost and protection device adopts the auto transformer to achieve a voltage rise and performs limit protection of the voltage rise, and has the advantages of less investment, high practicality and the like.

Description

technical field [0001] The invention relates to a voltage boosting device, in particular to a voltage boosting device using an autotransformer and a voltage boosting protection device. Background technique [0002] In the same capacity, autotransformers are popular because of their small size, light weight, easy operation, and continuously adjustable voltage, and are used by many instruments and circuits for debugging. Traditionally, people usually use an autotransformer as a step-down device. [0003] figure 1 It shows the circuit structure of the autotransformer B used as a step-down device. In the figure, the AC power supply U1 (generally 220V) is input from terminals ① and ②, and connected to the primary side A-X of B through the switch K and the fuse BX; B The secondary side a-x outputs the load voltage U2 through the terminals ③ and ④. [0004] exist figure 1 Among them, the zero line terminals X and x of the primary and secondary sides are on the same line, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/12H02H7/055H01F29/02
CPCH02M5/12H01F29/025H02H7/055
Inventor 陈凌冯运刘睿
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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