Parallel non-interrupted power supply system

Abstract

The invention relates to a parallel type uninterruptible power supply system which is connected with a power supply and a load, wherein, a first connector of a power distribution circuit, a second connector of a plurality of uninterruptible power supplies and a third connector of a plurality of transmission lines are respectively provided with a plurality of first conductive structures and a plurality of second conductive structures; when the second conductive structure of the third connector and the second conductive structure of the first connector or the second conductive structure of the first connector are separated, the second conductive structures are first mutually separated, which makes that pull-down lines of the corresponding uninterruptible power supplies generate trigger signals to a controller and stop the operation of the uninterruptible power supplies and causes that the third connector is separated from the first connector or the second connector safely, and the corresponding uninterruptible power supplies are maintained or replaced. The parallel type uninterruptible power supply system can maintain and replace failure uninterruptible power supplies safely and have the effect that another uninterruptible power supply can still supply power, thereby having great industrial value.

Description

technical field [0001] The invention relates to an uninterruptible power supply system, in particular to a parallel uninterruptible power supply system. Background technique [0002] An Uninterruptible Power Supply (UPS) is a device connected between a power supply and a load. The power supply may be direct commercial AC power supply or converted alternating current (AC). The main purpose of the uninterruptible power supply is to store the electric energy in the battery in advance when the power supply is normal. normal operation of the load. [0003] In order to protect important electronic devices more effectively and safely, uninterruptible power supply systems have been widely used to ensure the normal operation of various electronic devices. Among them, the online parallel uninterruptible power supply system is the best choice. [0004] see figure 1 , which is a schematic structural diagram of a known parallel uninterruptible power supply system. like figure 1 As...

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Problems solved by technology

[0015] The object of the present invention is to provide a parallel uninterruptible power supply system, which has a plurality of first conductors respectively through the first connector of the power distribution circuit, the second connector of the uninterruptible power supply and the third connector of the transmission line. A plurality of second conductive structures whose structure and length are shorter than the first conductive structure, when the connector of the transmission line is separated from the second conductive structure in the connector of the power distribution circuit or the uninterruptible power supply, the corresponding transmission line The pull-down circuit of the uninterruptible power supply will generate a trigger signal to the controller to stop the operation of the uninterruptible power supply, so that the transmission line can be safely separated from the power distribution circuit or uninterruptible power supply, and the corresponding uninterruptible power supply will be repaired and replaced. Power supply to solve the problem that when the traditional uninterruptible power supply system is repairing the uninterruptible power supply, the load is directly provided by the output of the bypass loop and cannot be protected by any uninterruptible power supply, and the traditional uninterruptible power supply system When using a non-fuse switch, all live terminals must be cut off to make the wiring connected to the fault uninterruptible power supply uncharged, and the cost of the non-fuse switch is high and takes up space.

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