Dual Power Transfer Switch

A dual power conversion and switching technology, applied in the direction of electric switches, circuits, electrical components, etc., can solve problems such as server damage, zero-ground voltage rise, data loss, etc., and achieve satisfactory technical results

Active Publication Date: 2018-06-08
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the conversion process of the power supply, the neutral line will have a temporary disconnection like other phase lines, which will cause fluctuations in the voltage of some power consumption settings and thus cause impact and loss
For example, in the application of uninterruptible power supply for data centers powered by combined ATSE and UPS, the short-term disconnection of the neutral wire will increase the neutral ground voltage of the UPS and cause the server to restart, resulting in serious consequences such as data loss or server damage.

Method used

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

[0024] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those having ordinary skill in the art to which the present disclosure belongs. "First", "second" and similar words used in the specification and claims of the present disclosure do not indicate any sequence, quantity or importance, but are only used to distinguish different components. Likewise, words like "a" or "one...

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Abstract

The application relates to a double-power-source change-over switch which comprises a load-side phase line pole, a first phase line switch, a second phase line switch, a load-side neutral pole, a first neutral line switch, and a second neutral line switch. When the first phase line switch and the second phase line switch are switched off, at least one of the first neutral line switch and the second neutral line switch is switched on. When a second power source starts power supply, the second neutral line switch is switched on earlier than the second phase line switch, and the first neutral line switch is switched off just before the second phase line switch is switched on. When a first power source starts power supply, the first neutral line switch is switched on earlier than the first phase line switch, and the second neutral line switch is switched off just before the first phase line switch is switched on. The double-power-source change-over switch is applicable to an occasion with strict requirement for continuous power supply.

Description

technical field [0001] This application designs a dual power transfer switch, especially a dual power transfer switch involving overlapping neutral lines. Background technique [0002] The dual power transfer switch was born in response to the requirement of continuity of power supply. As people's requirements for power supply continuity, safety, and reliability continue to deepen, the application of dual power transfer switches is becoming more and more extensive. Such as hotels, theaters and other important public places where people are concentrated, the interruption of power supply will cause chaos and even endanger the lives of guests. Relevant industry standards stipulate that its power distribution system must have emergency power supply. Another example is the data center, where the loss of power supply voltage means the loss of data. People use dual power transfer switch and UPS uninterruptible power supply combination to ensure the continuity of its power supply...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/26
CPCH01H9/26
Inventor 刘振忠
Owner SCHNEIDER ELECTRIC IND SAS
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