CN104065156B

CN104065156B - A kind of input wires device that intersects in parallel of 2N power-supply system

Info

Publication number: CN104065156B
Application number: CN201410154100.XA
Authority: CN
Inventors: 杜狄松; 阮长根; 程鸣辉
Original assignee: Huaxin Consulting Co Ltd
Current assignee: Huaxin Consulting Co Ltd
Priority date: 2014-04-17
Filing date: 2014-04-17
Publication date: 2017-01-04
Anticipated expiration: 2034-04-17
Also published as: CN104065156A

Abstract

The invention discloses the input wires device that intersects in parallel of a kind of 2N power-supply system, including a UPS input screen, the 2nd UPS input screen, first low join switch, second low join switch, the first power supply and second source, it is respectively equipped with an ATS automatic transfer switch and the 2nd ATS automatic transfer switch in oneth UPS input screen and the 2nd UPS input screen, oneth UPS input screen and the first power supply are connected, 2nd UPS input screen is connected with second source, and the first power supply is connected with load with second source simultaneously.The intersection input wires device in parallel of 2N power-supply system can be greatly decreased and switch and the configuration quantity of cable low joining, and improves switch and the utilization rate of cable, cost-effective, practical.

Description

A kind of input wires device that intersects in parallel of 2N power-supply system

Technical field

The present invention relates to the termination of a kind of 2N power-supply system, refer in particular to the input wires device that intersects in parallel of a kind of 2N power-supply system.

Background technology

In Constructing data center designs, GB50174-2008 " electronic information system machine rooms design specification " power supply of A stage load is required be: two power supplys are powered and two power supplys should not be damaged simultaneously." TIA-942 standard " also specifies: there be power supply and the cooling distribution path of multiple work in the data center of a rank 4.In the data center of a rank 4, at least two path is normal, and infrastructure provides a higher Fault Tolerance.

For meeting domestic or international standard, related personnel uses a kind of 2N power-supply system building form at ordinary times, provides the uninterrupted alternating current power supply of high reliability for A level (rank 4 of TIA942 standard) data center.This 2N power-supply system needs to be overlapped completely self-contained ups power system by two and (includes two sets independent UPS input screen, two overlap independent UPS main frame, two overlap independent UPS cutout screen, the multiple-connected battery group etc. that two sets are independent) form a set of 2N ups power system, provide two-way uninterrupted power source for visual plant.

Vital power supply importation as above-mentioned 2N ups power system, general people are set to the input of active and standby double route by often overlapping UPS input screen, power for ups system after using two-way switching switch switching, the most a set of UPS input screen needs by two the most active and standby low-voltage distribution switches, the cable route the most active and standby by two-way inputs as power supply, by powering for ups system after two-way switching switch switching.In above-mentioned 2N ups system, completely self-contained two set UPS input screens, it would be desirable to four tunnel higher level's low-voltage distribution switches, four road cable routes, input as alternating current power supply.But under system normal operation, the low power system capacity joining switch and four road cable route only carryings 25% of this four tunnels higher level, significantly increase project construction cost.

China Patent Publication No. CN102881494A, publication date on January 16th, 2013, discloses the mode of connection of a kind of double control switch in the patent of invention of entitled " mode of connection of a kind of double control switch ".The mode of connection of described double control switch, including: (1) live wire accesses A and controls the 1st interface of switch, and by power line, A control switch, B is controlled switch and be together in series, and reconnects the 1st connection jaws of control equipment；(2) the 2nd connection jaws of zero line access control equipment；(3) when the 2nd connection jaws during A controls the plug-in strip incision A control switch of switch or the 3rd connection jaws, B control the 2nd connection jaws in the plug-in strip incision B control switch of switch or the 3rd connection jaws, then control equipment is opened；(4) when the plug-in strip of A control switch disconnects the 2nd connection jaws or the 3rd connection jaws, the plug-in strip of B control switch disconnect the 2nd connection jaws or the 3rd connection jaws, then closing control apparatus.This invention efficiently solve have only to 2 power lines can be with control circuit, it is possible to prevent the technical problem of power supply short circuit, save installing engineering cost.Being disadvantageous in that, this different design closes the design to data center feed of two power supplys of national standard requirement.

Summary of the invention

It is an object of the invention to overcome the shortcoming that in prior art, the termination of 2N power-supply system is inefficient, relatively costly, the input wires device that intersects in parallel of a kind of 2N power-supply system is provided, this device can reduce low join switch and the configuration quantity of cable, effectively save cost.

It is an object of the invention to be achieved by following technical proposals:

nullA kind of input wires device that intersects in parallel of 2N power-supply system，Including a UPS input screen、2nd UPS input screen、First low joins switch、Second low joins switch、First power supply and second source，It is respectively equipped with an ATS automatic transfer switch and the 2nd ATS automatic transfer switch in oneth UPS input screen and the 2nd UPS input screen，Oneth ATS automatic transfer switch includes No. 1 input terminal and No. 2 input terminals，2nd ATS automatic transfer switch includes No. 3 input terminals and No. 4 input terminals，No. 1 input terminal and No. 3 input terminals are all connected by the low switch of joining of cable and first，No. 2 input terminals and No. 4 input terminals are all connected by the low switch of joining of cable and second，Oneth UPS input screen and the first power supply are connected，2nd UPS input screen is connected with second source，First power supply is connected with load with second source simultaneously.

First low joins switch and the second low switch of joining is the most active and standby low to join switch.When normally working, two UPS input screens all band semi-load.Oneth UPS input screen by first low join switch or second low join switch power supply, simultaneously the 2nd UPS input screen also by first low join switch or second low join switch power supply.When two low one of switch faults of joining, a UPS input screen and the 2nd UPS input screen all automatically switch to another low switch of joining and power.The low number of cables switched between UPS input screen of joining is needed for power supply full capacity the 50% of number of cables, and the low quantity joining switch decreases 50%, improves switch and the utilization rate of cable.

As a kind of preferred version, it is connected also by cable between No. 1 input terminal and No. 3 input terminals, is connected also by cable between No. 2 input terminals and No. 4 input terminals.

Cable between oneth UPS input screen and the 2nd UPS input screen is cross-connecting cable.When certain power failure, band is carried whole load by one of them UPS input screen, assume that No. 1 UPS input screen band carries whole loads, its primary No. 1 input terminal will be combined power supply by the first low switch of joining with No. 2 primary No. 3 input terminals of UPS input screen, and now No. 2 primary No. 3 input terminals of UPS input screen are also powered by the first low switch of joining.

As a kind of preferred version, an ATS automatic transfer switch and the 2nd ATS automatic transfer switch are single-pole double-throw switch (SPDT).Single-pole double-throw switch (SPDT) motility is preferable, failure rate is low.

The invention has the beneficial effects as follows, the intersection input wires device in parallel of 2N power-supply system can be greatly decreased and switch and the configuration quantity of cable low joining, and improves switch and the utilization rate of cable, cost-effective, practical.

Accompanying drawing explanation

Fig. 1 is the wiring schematic diagram of 2N power-supply system prior art；

Fig. 2 is a kind of wiring schematic diagram of the present invention.

Wherein: 1, first low joins switch, 2, second low joins switch, the 3, the oneth UPS input screen, 4, the 2nd UPS input screen, 5, an ATS automatic transfer switch, the 6, the 2nd ATS automatic transfer switch, 7, No. 1 input terminal, 8, No. 2 input terminals, 9, No. 3 input terminals, 10, No. 4 input terminals, the 11, first power supply, 12, second source, 13, load.

Detailed description of the invention

With embodiment, the present invention is further described below in conjunction with the accompanying drawings.

Embodiment: the input wires device that intersects in parallel of a kind of 2N power-supply system, its wiring schematic diagram is as shown in Figure 2, join that switch 1, second is low joins switch the 2, first power supply and second source including UPS input screen the 3, a 2nd UPS input screen 4, first is low, being respectively equipped with ATS automatic transfer switch 5 and a 2nd ATS automatic transfer switch 6 in oneth UPS input screen and the 2nd UPS input screen, an ATS automatic transfer switch and the 2nd ATS automatic transfer switch are single-pole double-throw switch (SPDT).Oneth ATS automatic transfer switch includes No. 1 input terminal 7 and No. 2 input terminals 8,2nd ATS automatic transfer switch includes No. 3 input terminals 9 and No. 4 input terminals 10, No. 1 input terminal and No. 3 input terminals are all connected by the low switch of joining of cable and first, No. 2 input terminals and No. 4 input terminals are all connected by the low switch of joining of cable and second, oneth UPS input screen and the first power supply 11 are connected, 2nd UPS input screen is connected with second source 12, and the first power supply is connected with load 13 with second source simultaneously.It is connected also by cable between No. 1 input terminal and No. 3 input terminals, is connected also by cable between No. 2 input terminals and No. 4 input terminals.

The wiring schematic diagram of 2N power-supply system prior art joins switch as it is shown in figure 1, include that four higher levels are low, two UPS input screens, four road cables routes, two set power supplys, a load.When routine work, four low joins switch and four road cables routes, two-way semi-load, and two-way is unloaded.When rear class uninterruptible power system fault, a switch and a road cable route are fully loaded, and three roads are unloaded.Its low switch no-load ratio of joining is high, and cabling requirements is more, inefficient.

This device first is low joins switch and the second low switch of joining is the most active and standby low to join switch.When normally working, two UPS input screens all band semi-load.Oneth UPS input screen by first low join switch or second low join switch power supply, simultaneously the 2nd UPS input screen also by first low join switch or second low join switch power supply.When two low one of switch faults of joining, a UPS input screen and the 2nd UPS input screen all automatically switch to lead a low switch of joining to power.The low number of cables switched between UPS input screen of joining is needed for power supply full capacity the 50% of number of cables, and the low quantity joining switch decreases 50%, improves switch and the utilization rate of cable.When certain power failure, band is carried whole load by one of them UPS input screen, assume that No. 1 UPS input screen band carries whole loads, its primary No. 1 input terminal will be combined power supply by the first low switch of joining with No. 2 primary No. 3 input terminals of UPS input screen, and now No. 2 primary No. 3 input terminals of UPS input screen are also powered by the first low switch of joining.

Claims

null1. the input wires device that intersects in parallel of a 2N power-supply system，It is characterized in that，Including a UPS input screen、2nd UPS input screen、First low joins switch、Second low joins switch、First power supply and second source，It is respectively equipped with an ATS automatic transfer switch and the 2nd ATS automatic transfer switch in oneth UPS input screen and the 2nd UPS input screen，Oneth ATS automatic transfer switch includes No. 1 input terminal and No. 2 input terminals，2nd ATS automatic transfer switch includes No. 3 input terminals and No. 4 input terminals，No. 1 input terminal and No. 3 input terminals are all connected by the low switch of joining of cable and first，No. 2 input terminals and No. 4 input terminals are all connected by the low switch of joining of cable and second，Oneth UPS input screen and the first power supply are connected，2nd UPS input screen is connected with second source，First power supply is connected with load with second source simultaneously；It is connected also by cable between No. 1 input terminal and No. 3 input terminals, is connected also by cable between No. 2 input terminals and No. 4 input terminals；When second source fault, oneth UPS input screen band carries whole loads, No. 1 input terminal of the oneth ATS automatic transfer switch is combined power supply by the first low No. 3 input terminals joining switch and the 2nd ATS automatic transfer switch, and No. 3 input terminals of the 2nd ATS automatic transfer switch are also powered by the first low switch of joining；When the first power failure, 2nd UPS input screen band carries whole loads, No. 4 input terminals of the 2nd ATS automatic transfer switch are combined power supply by the second low No. 2 input terminals joining switch and an ATS automatic transfer switch, and now No. 2 input terminals of an ATS automatic transfer switch are also powered by the second low switch of joining.
The input wires device that intersects in parallel of a kind of 2N power-supply system the most according to claim 1, is characterized in that, an ATS automatic transfer switch and the 2nd ATS automatic transfer switch are single-pole double-throw switch (SPDT).