CN104065156A

CN104065156A - Parallel cross input wiring device of 2N power supply system

Info

Publication number: CN104065156A
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: 2014-09-24
Anticipated expiration: 2034-04-17
Also published as: CN104065156B

Abstract

The invention discloses a parallel cross input wiring device of a 2N power supply system. The parallel cross input wiring device of the 2N power supply system comprises a first UPS input screen, a second UPS input screen, a first low-configuration switch, a second low-configuration switch, a first power supply and a second power supply, a first ATS automatic transfer switch is arranged in the first UPS input screen, a second ATS automatic transfer switch is arranged in the second UPS input screen, the first UPS input screen is connected with the first power supply, the second UPS input screen is connected with the second power supply, and the first power supply and the second power supply are simultaneously connected with a load. The parallel cross input wiring device of the 2N power supply system is capable of greatly reducing the configuration number of each of the low-configuration switches and cables, enables the switch and cable use ratio to be improved, enables the cost to be saved and is strong in practicability.

Description

A kind of parallel connection intersection input wires device of 2N power-supply system

Technical field

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

Background technology

In Constructing data center design, GB50174-2008 < < electronic information system machine rooms design specification > > to the power supply requirement of A stage load is: two Power supplies and two power supplys should not be damaged simultaneously.In < < TIA-942 standard > >, also stipulate: there be power supply and the cooling distribution path of a plurality of work in the data center of a rank 4.In the data center of a rank 4, at least two paths are 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, and for A level (rank 4 of TIA942 standard), data center provides the uninterrupted AC power of high reliability.This 2N power-supply system need to by two covers completely independently ups power system (comprise the independent UPS input screen of two covers, the independent UPS main frame of two covers, the independent UPS cutout screen of two covers, two overlap independently multiple-connected battery group etc.) form a set of 2N ups power system, for visual plant provides two-way uninterrupted power supply.

Vital power supply importation as above-mentioned 2N ups power system, the general every cover of people UPS input screen is set to active and standby double route input, it after adopting two-way diverter switch to switch, is ups system power supply, be that a set of UPS input screen need to be by two active and standby low-voltage distribution switches each other, by two-way each other active and standby cable route as power supply, input, after switching by two-way diverter switch for ups system is powered.In above-mentioned 2N ups system, completely independently two cover UPS input screens, will need four tunnel higher level's low-voltage distribution switches, and four road cable routes, input as AC power.But under system normal operation, Gai Si road higher level is low to be joined switch Ji Si road cable route and only carries 25% power system capacity, has increased greatly project construction cost.

China Patent Publication No. CN102881494A, in open day on January 16th, 2013, name is called the mode of connection that discloses a kind of double control switch in the patent of invention of " a kind of mode of connection of double control switch ".The mode of connection of described double control switch, comprising: the 1st interface of (1) live wire access A control switch, and by power line, A control switch, B control switch are together in series, then connect the 1st connection jaws of control appliance; (2) the 2nd of zero line access control equipment the connection jaws; (3), when the 2nd connection jaws in the plug-in strip incision B control switch of the 2nd connection jaws in the plug-in strip incision A of A control switch control switch or the 3rd connection jaws, B control switch or the 3rd connection jaws, open control appliance; (4) when the plug-in strip that disconnects the 2nd connection jaws or the 3rd connection jaws, B control switch when the plug-in strip of A control switch disconnects the 2nd connection jaws or the 3rd connection jaws, closing control apparatus.This invention has only effectively solved and to have needed 2 power lines can control circuit, and can prevent the technical problem of power supply short circuit, has saved installing engineering cost.Weak point is, this different design closes the design to data center feed of two power supplys that national standard requires.

Summary of the invention

The object of the invention is to overcome the shortcoming that termination efficiency is lower, cost is higher of 2N power-supply system in prior art, a kind of parallel connection intersection input wires device of 2N power-supply system is provided, this device can reduce low configuration quantity of joining switch and cable, effectively cost-saving.

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

A kind of parallel connection intersection input wires device of 2N power-supply system, comprise a UPS input screen, the 2nd UPS input screen, the first low switch of joining, the second low switch of joining, the first power supply and second source, in the one UPS input screen and the 2nd UPS input screen, be respectively equipped with an ATS automatic transfer switch and the 2nd ATS automatic transfer switch, the one ATS automatic transfer switch comprises No. 1 input terminal and No. 2 input terminals, the 2nd ATS automatic transfer switch comprises No. 3 input terminals and No. 4 input terminals, No. 1 input terminal is all connected with the first low switch of joining by cable with No. 3 input terminals, No. 2 input terminal is all connected with the second low switch of joining by cable with No. 4 input terminals, the one UPS input screen is connected with the first power supply, the 2nd UPS input screen is connected with second source, the first power supply is connected with load with second source simultaneously.

First lowly joins switch and the second low switch of joining is the active and standby each other low switch of joining.During normal work, two UPS input screens are all with semi-load.The one UPS input screen is lowly joined switch or the second low switch of joining is powered by first, and the 2nd UPS input screen is also lowly joined switch or the second low switch of joining is powered by first simultaneously.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.Low number of cables of joining between switch and UPS input screen is 50% of the required number of cables of power supply full capacity, and low quantity of joining switch also reduced 50%, has improved the utilance of switch and cable.

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

Cable between the one UPS input screen and the 2nd UPS input screen is cross-connecting cable.When certain power failure, one of them UPS input screen will be with and carry all loads, suppose that No. 1 UPS input screen band carries whole loads, its primary No. 1 input terminal will lowly be joined switch and No. 2 primary No. 3 input terminals of UPS input screen are combined power supply by first, 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) flexibility is better, failure rate is low.

The invention has the beneficial effects as follows, the parallel connection intersection input wires device of 2N power-supply system can significantly reduce low configuration quantity of joining switch and cable, has improved the utilance of switch and cable, cost-saving, 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, the first low switch of joining, the 2, second low switch of joining, the 3, the one 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 terminals, 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.

Embodiment

Below in conjunction with drawings and Examples, the present invention is further described.

Embodiment: a kind of parallel connection intersection input wires device of 2N power-supply system, its wiring schematic diagram as shown in Figure 2, comprise a UPS input screen 3, low low switch 2, the first power supply and the second source of joining of switch 1, second of joining of the 2nd UPS input screen 4, first, in the one UPS input screen and the 2nd UPS input screen, be respectively equipped with an ATS automatic transfer switch 5 and the 2nd ATS automatic transfer switch 6, the one ATS automatic transfer switchs and the 2nd ATS automatic transfer switch and be single-pole double-throw switch (SPDT).The one ATS automatic transfer switch comprises No. 1 input terminal 7 and No. 2 input terminals 8, the 2nd ATS automatic transfer switch comprises No. 3 input terminals 9 and No. 4 input terminals 10, No. 1 input terminal is all connected with the first low switch of joining by cable with No. 3 input terminals, No. 2 input terminal is all connected with the second low switch of joining by cable with No. 4 input terminals, the one UPS input screen is connected with the first power supply 11, the 2nd UPS input screen is connected with second source 12, and the first power supply is connected with load 13 with second source simultaneously.Between No. 1 input terminal and No. 3 input terminals, also by cable, be connected, between No. 2 input terminals and No. 4 input terminals, also by cable, be connected.

The wiring schematic diagram of 2N power-supply system prior art as shown in Figure 1, comprises four low switches of joining of higher level, two UPS input screens, four road cable routes, two cover power supplys, a load.When routine work, four low switch Ji Si road cable routes of joining, two-way semi-load, two-way is unloaded.When rear class uninterruptible power system fault, a switch Ji Yi road cable route is fully loaded, and three roads are unloaded.Its low switch no-load ratio of joining is high, and cable demand is more, and efficiency is lower.

This installs first and lowly joins switch and the second low switch of joining is the active and standby each other low switch of joining.During normal work, two UPS input screens are all with semi-load.The one UPS input screen is lowly joined switch or the second low switch of joining is powered by first, and the 2nd UPS input screen is also lowly joined switch or the second low switch of joining is powered by first simultaneously.When two low one of switch faults of joining, a UPS input screen and the 2nd UPS input screen all automatically switch to low switch of joining of neck and power.Low number of cables of joining between switch and UPS input screen is 50% of the required number of cables of power supply full capacity, and low quantity of joining switch also reduced 50%, has improved the utilance of switch and cable.When certain power failure, one of them UPS input screen will be with and carry all loads, suppose that No. 1 UPS input screen band carries whole loads, its primary No. 1 input terminal will lowly be joined switch and No. 2 primary No. 3 input terminals of UPS input screen are combined power supply by first, and now No. 2 primary No. 3 input terminals of UPS input screen are also powered by the first low switch of joining.

Claims

1. the parallel connection of a 2N power-supply system intersects input wires device, it is characterized in that, comprise a UPS input screen, the 2nd UPS input screen, the first low switch of joining, the second low switch of joining, the first power supply and second source, in the one UPS input screen and the 2nd UPS input screen, be respectively equipped with an ATS automatic transfer switch and the 2nd ATS automatic transfer switch, the one ATS automatic transfer switch comprises No. 1 input terminal and No. 2 input terminals, the 2nd ATS automatic transfer switch comprises No. 3 input terminals and No. 4 input terminals, No. 1 input terminal is all connected with the first low switch of joining by cable with No. 3 input terminals, No. 2 input terminal is all connected with the second low switch of joining by cable with No. 4 input terminals, the one UPS input screen is connected with the first power supply, the 2nd UPS input screen is connected with second source, the first power supply is connected with load with second source simultaneously.

2. the parallel connection of a 2N power-supply system intersection input wires device, is characterized in that, between No. 1 input terminal and No. 3 input terminals, also by cable, is connected, and between No. 2 input terminals and No. 4 input terminals, also by cable, is connected.

3. the parallel connection of a kind of 2N power-supply system according to claim 1 and 2 intersection input wires device, is characterized in that, an ATS automatic transfer switch and the 2nd ATS automatic transfer switch are single-pole double-throw switch (SPDT).