Three-phase voltage controller with industrial power supply

A three-phase voltage and controller technology, which is applied in the direction of electrical components, output power conversion devices, irreversible AC power input conversion to DC power output, etc., can solve the problem of high output voltage, controller failure, industrial controller The power supply module burns out and other problems

Inactive Publication Date: 2014-01-01
广州普瑞电力控制系统设备有限公司
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AI Technical Summary

Problems solved by technology

The output voltage is too high due to the fact that the secondary output leads of the two PTs do not distinguish the direction of the phase in normal engineering wiring.
Then when the AC voltage output is too high, the power supply module of the industrial controller will burn out and the controller will not work normally, which may cause major property losses

Method used

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Embodiment Construction

[0011] In order to make the technical means, creative features, work flow, and use methods of the present invention achieve the purpose and effect easily understood, the present invention will be further described below in conjunction with specific embodiments.

[0012] A three-phase voltage controller for industrial power supply, including the following parts: (1) Two-way bridge stack rectification, the main function is to rectify the three-phase voltage, as the input terminal of the three-phase voltage of the whole part, the four outlet interfaces are respectively : A, B1, B2, C, A represents the A-phase voltage of the three-phase voltage, B1 and B2 represent the B-phase voltage of the three-phase voltage, C represents the C-phase voltage of the three-phase voltage, and the output after rectification is direct voltage HV1+, HV2+ , HV1-, HV2-; (2) MOS tube drive control circuit, metal oxide semiconductor structure transistors are referred to as MOS tubes, part of the function ...

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Abstract

The invention discloses a three-phase voltage controller with industrial power supply. The three-phase voltage controller with the industrial power supply comprises double bridge rectifying circuits (1), an MOS tube drive and control circuit (2) and a direct-current output portion (3). According to the three-phase voltage controller with the industrial power supply, secondary output voltage of a voltage transformer is detected, when the secondary output voltage exceeds normal output voltage, corresponding MOS pipelines are disconnected to achieve the purpose that output voltage is normal, and the problem that due to the fact that two wires arranged on the same ground are wrongly arranged in the process that four wires are changed to three phases after three-phase voltage is changed, voltage is overhigh can be generally solved.

Description

technical field [0001] In particular, the present invention relates to a three-phase voltage controller for industrial power supply. Background technique [0002] The process of taking power from high-voltage three-phase is the process of changing the four-wire output after two PT steps down to three-wire. The process of changing four-wire into three-wire is mainly to connect one wire of the secondary output of the two PTs respectively. Get up and get grounded. Because the secondary output leads of the two PTs do not distinguish the direction of the phase in normal engineering wiring, the output voltage will be too high. Then, when the AC voltage output is too high, the power supply module of the industrial controller will burn out and the controller cannot work normally, which may cause major property losses. Contents of the invention [0003] The technical problem solved by the present invention is to provide a three-phase voltage controller for industrial power supply...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/06H02M1/32
Inventor 汤玉峰
Owner 广州普瑞电力控制系统设备有限公司
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