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Controllable switching multi-gear output intelligent transformer apparatus

A technology for output transformers and transformers, which can be applied to conversion equipment that can be converted to DC without intermediate conversion, and can solve the problems of increased risk, large workload, and long time in testing.

Inactive Publication Date: 2016-10-12
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When it is necessary to conduct multiple electrical tests with different voltage levels, the above process must be repeated many times, which makes the test preparation process time-consuming and heavy workload
In addition, every time the wiring is replaced, the wiring needs to be rechecked. As the number of times increases, the hidden danger of wiring errors also increases, and the risk of testing also increases.

Method used

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  • Controllable switching multi-gear output intelligent transformer apparatus
  • Controllable switching multi-gear output intelligent transformer apparatus
  • Controllable switching multi-gear output intelligent transformer apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] see figure 1 , which is a schematic diagram of Embodiment 1 of the controllable switching multi-speed output transformer device provided by the present invention.

[0049] The multi-gear output transformer device with controllable switching provided in this embodiment includes: a transformer 100 and an array type electric control contactor 200;

[0050] The array type electric control contactor 200 includes a plurality of three-phase contactors;

[0051] The primary winding of the transformer 100 includes taps, or the secondary winding of the transformer 100 includes taps, or both the primary winding and the secondary winding of the transformer 100 include taps;

[0052] The primary winding and secondary winding of the transformer 100 are interchangeable; that is, the input and output terminals of the transformer 100 can be interchangeable, the primary winding can be connected to a power supply, and conversely, the secondary winding can also be connected to a power sup...

Embodiment 2

[0061] see figure 2 , which is a schematic diagram of Embodiment 2 of the controllable switching multi-speed output transformer device provided by the present invention.

[0062] In the controllable switching multi-level output transformer device provided in this embodiment, when the primary winding of the transformer includes taps, the number of taps of the primary winding is one or more than two;

[0063] When the secondary winding of the transformer includes taps, the number of taps of the secondary winding is one or more than two.

[0064] It can be understood that whether the transformer is provided with taps on the primary winding or on the secondary winding can be selected according to actual needs. In addition, the number of taps to be set can also be selected and set according to needs, which is not specifically limited in the present invention.

[0065] In addition, the transformer device provided in this embodiment is also equipped with a voltage and current moni...

Embodiment 3

[0080] see image 3 , which is a schematic diagram of the third embodiment of the controllable switching multi-speed output transformer device provided by the present invention.

[0081] In this embodiment, the primary winding includes one tap as an example for introduction.

[0082] When the primary winding of the transformer includes a tap, the primary winding includes three terminals, namely: a first end, a tap end, and a second end; the array type electric control contactor includes: a first three-phase contact S7 and the second three-phase contactor S6;

[0083] Such as image 3 As shown, both the primary winding and the secondary winding include three phases, the three-phase primary windings have the same connection relationship, and the three-phase secondary windings have the same connection relationship.

[0084] The first end of the primary winding of each phase refers to the red 800, the tap end refers to the blue 600, and the second end refers to the black 0.

...

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Abstract

The invention discloses a controllable switching multi-gear output intelligent transformer apparatus. The controllable switching multi-gear output intelligent transformer apparatus comprises a transformer and an array type electric control contactor, wherein the primary winding of the transformer comprises one or more than two taps, or the secondary winding of the transformer comprises one or more than two taps, or the primary winding and the secondary winding of the transformer both comprise taps; the primary winding and the secondary winding of the transformer can be interconvertible; primary winding and the secondary winding of the transformer both comprise three phases; the transformer apparatus comprises an input end and an output end; the input end is connected with the primary winding through one or more three-phase contactors while the output end is connected with the secondary winding through one or more three-phase contactors; the array type electric control contactor receives an external voltage level switching instruction and executes a contactor action which is corresponding to the voltage level switching instruction so as to switch the combination of the input end and the output end of the transformer apparatus. The apparatus can output multi-gear voltages; the power supply voltage can be subjected to voltage boosting and voltage drop of different levels; and requirements of multiple kinds of test objects can be satisfied.

Description

technical field [0001] The invention relates to the technical field of electrical equipment, in particular to a multi-gear output intelligent transformer device with controllable switching. Background technique [0002] In high-voltage electrical tests, it is often necessary to use a test transformer to step up or step down the power supply voltage to meet the high-voltage level requirements of the tested product. If the type of test is different or the type of tested product is different, the required test voltage is different. Therefore, it is necessary to set multiple transformers with different transformation ratios, or to set the secondary winding output of a single transformer. [0003] However, in the two methods used in the prior art, when wiring during the test, it is necessary to select a corresponding voltage gear or a single test transformer according to the test voltage, and then manually connect and check. When it is necessary to conduct multiple electrical t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/12
CPCH02M5/12
Inventor 朱纯张国强王小松汪强熊织明肖峰彭祥邓国标华晨王贤李盈盈季方刘波
Owner STATE GRID CORP OF CHINA