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Automatic switching method for emergency power supply and two-way working power supplies of diesel generator

A technology for diesel generators and working power supplies, applied in emergency power supply arrangements, circuit devices, electrical components, etc., can solve the problems of low reliability, large safety hazards, and large one-time investment in microcomputer protection and monitoring units, so as to avoid misoperation, Improve reliability and save one-time investment

Inactive Publication Date: 2015-09-16
SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is: in view of the above situation, provide a kind of automatic switching method of diesel generator emergency power supply and two-way working power supply, in order to solve the low reliability, misoperation, large potential safety hazard and microcomputer protection monitoring unit that exist in the manual switching mode There are problems such as large investment at one time, refusal or misoperation, low reliability, etc.

Method used

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  • Automatic switching method for emergency power supply and two-way working power supplies of diesel generator
  • Automatic switching method for emergency power supply and two-way working power supplies of diesel generator

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Embodiment Construction

[0014] Attached below Figure 1-2 The present invention will be further described in detail with specific embodiments.

[0015] figure 1 It is the control schematic diagram of the present invention. The present invention is composed of the following parts: dual power supply automatic switching switch 1, which is used for automatic switching of two working power supplies; the first fuse 2 and the first fuse 3, which are used for the protection of the control circuit; electronic monitoring relay 4, It is used for the voltage detection of the two-way working power supply. When the two-way working power supply loses power, a control signal is input to the PLC control system 19, and the PLC control system acts on the diesel generator 17 to start; the first transfer switch 5 is used to select The automatic or manual control mode of the first AC contactor 13 and the second AC contactor 14; the second transfer switch 6 is used to select the automatic or manual control mode of the th...

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Abstract

The present invention discloses an automatic switching method for an emergency power supply and two-way working power supplies of a diesel generator, which is suitable for the power supply of a special important first level load. According to the method, 2 AC contactors are arranged on an outlet side of an automatic switching switch of the two-way working power supplies, 2 AC contactors are arranged on the circuit breaker side of the outlet of the diesel generator, two sections of the power distribution bus line are separately connected to the working power supply and the emergency power supply, and the interlocking control is performed for 2 groups of AC contactors through a control system, such that the automatic switching between the emergency power supply and the two way working power supplies of the diesel generator can be achieved, which solves the problem of the reliability of the power supply for the special important first level load.

Description

technical field [0001] The invention relates to an automatic switching method between an emergency power supply of a diesel generator and two working power supplies, which is suitable for the power supply of a particularly important primary load, and can realize that the emergency power supply is automatically switched on when the two working power supplies of the load are completely cut off. The emergency power supply automatically exits when the power supply of one road is restored, which is a technical measure to solve the problem of reliable power supply for particularly important primary loads. Background technique [0002] For some 380 / 220V voltage level power supply and distribution systems, there is usually a particularly important primary load. For this part of the power load, in addition to being powered by two power sources, an emergency power supply should be added. When a diesel generator is used as the emergency power supply, the emergency power supply should b...

Claims

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Application Information

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IPC IPC(8): H02J9/08
Inventor 何亮
Owner SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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