CN216056470U - Bypass ATS power supply system - Google Patents

Abstract

The utility model provides a bypass ATS power supply system, includes ATS, main input power, reserve input power, main input switch, reserve input switch, bypass maintenance switch and output switch, the ATS includes ATS automatic transfer switch and controller, main input power warp main input switch connects ATS automatic transfer switch's end commonly used, reserve input power warp reserve input switch connects ATS automatic transfer switch's reserve end, ATS automatic transfer switch's output warp output switch connects the load, the controller is based on main input power with reserve input power's state control often used end with the break-make of reserve end, bypass maintenance switch connects main input power with the load or connect reserve input power with the load. The utility model can be quickly switched to the bypass to ensure the load power supply when the ATS fails, and has simple structure and simple and convenient operation.

Description

Bypass ATS power supply system

Technical Field

The utility model relates to the field of power supplies, in particular to a bypass ATS power supply system.

Background

In data centers in the banking industry, the telecommunication industry, the financial industry, the internet industry, public transportation control and important industrial application scenes, important electric equipment such as servers and networks and the like need to be subjected to electric energy distribution, accurate monitoring and management. The method has extremely high requirements on the quality of electric energy and the reliability of a power supply. Data centers are particularly true for reliability and continuity of power supply. Therefore, in these application scenarios, a multi-path power supply mode is adopted, which has multiple power supply modes such as a mains supply, an oil engine power supply, a UPS power supply, and the like.

However, existing bypass ATS power systems either fail to provide power to the load in the event of a fault, or are expensive, bulky, and difficult to operate.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the present invention is to provide a bypass ATS power supply system that has a simple structure and is easy and convenient to operate, and can be quickly switched to a bypass to ensure load power supply, in order to overcome the above-mentioned drawbacks of the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a bypass ATS power supply system is constructed, and the bypass ATS power supply system comprises an ATS, a main input power supply, a standby input power supply, a main input switch, a standby input switch, a bypass maintenance switch and an output switch, wherein the ATS comprises an ATS automatic transfer switch and a controller, the main input power supply is connected with the main input switch, the standby input power supply is connected with the standby end of the ATS automatic transfer switch, the output end of the ATS automatic transfer switch is connected with a load through the output switch, the controller controls the state of the main input power supply and the standby input power supply to control the on-off of the common end and the standby end of the ATS automatic transfer switch, and the bypass maintenance switch is connected with the main input power supply and the load or is connected with the standby input power supply and the load.

In the bypass ATS power supply system according to the present invention, the bypass maintenance switch includes a main bypass maintenance switch and a backup bypass maintenance switch, the main bypass maintenance switch connects the main input power source and the load, and the backup bypass maintenance switch connects the backup input power source and the load.

In the bypass ATS power supply system according to the present invention, the main bypass maintenance switch and the standby bypass maintenance switch include two circuit breakers and are respectively configured with the same opening position lock.

In the bypass ATS power supply system, the main bypass maintenance switch and the standby bypass maintenance switch comprise two circuit breaker plugging bases and a circuit breaker body.

In the bypass ATS power supply system, the main bypass maintenance switch and the standby bypass maintenance switch comprise two circuit breaker plugging bases and two circuit breaker bodies.

In the bypass ATS power supply system of the present invention, the bypass ATS power supply system further includes a display screen and a cabinet.

In the bypass ATS power supply system, the display screen is arranged on the first layer of the cabinet, the main bypass maintenance switch, the main input switch, the standby input switch and the standby bypass maintenance switch are sequentially arranged on the second layer of the cabinet side by side, the ATS automatic change-over switch and the controller are arranged on the third layer of the cabinet side by side, and the output switch is arranged on the fourth layer of the cabinet.

In the bypass ATS power supply system of the present invention, the main input switch, the backup input switch, and the output switch are circuit breakers.

In the bypass ATS power supply system according to the present invention, the circuit breaker includes a molded case circuit breaker, a frame circuit breaker, or a micro circuit breaker.

The bypass ATS power supply system can be quickly switched to the bypass to ensure the load power supply when the ATS has a fault by simply arranging the bypass maintenance switch, and has simple structure and simple and convenient operation.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a circuit schematic of a first preferred embodiment of the bypass ATS power supply system of the present invention;

FIG. 2 is a schematic structural diagram of a second preferred embodiment of the bypass ATS power supply system of the present invention;

FIG. 3 is a schematic layout of the bypass ATS power system of FIG. 2 with the cabinet open;

fig. 4 is a front view of the bypass ATS power supply system shown in fig. 2 with the cabinet open.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Fig. 1 is a circuit schematic of a first preferred embodiment of the bypass ATS power supply system of the present invention. As shown in fig. 1, the bypass ATS power supply system of the present invention includes an ATS 3, a main input power source 1, a backup input power source 2, a main input switch S1, a backup input switch S2, a main bypass service switch S3, a backup bypass service switch S4, and an output switch S5. The ATS 3 includes an ATS automatic transfer switch 31 and a controller 32 (see fig. 2). The main input power source 1 is typically mains power. The backup input power source 2 may be a utility/diesel generator/other power source. The main input power source 1 is connected to the common terminal of the ATS automatic transfer switch 31 through the main input switch S1, and the backup input power source 2 is connected to the backup terminal of the ATS automatic transfer switch 31 through the backup input switch S2. The output end of the ATS automatic transfer switch 31 is connected to a load through the output switch S5. The controller 32 controls the on/off of the normal terminal and the standby terminal of the ATS automatic transfer switch 31 based on the states of the main input power supply 1 and the standby input power supply 2. The main bypass service switch S3 connects the main input power source 1 and the load, and the backup bypass service switch S4 connects the backup input power source 2 and the load.

As shown in fig. 1, in the normal operating condition of the bypass ATS power supply system, the main input switch S1 and the backup input switch S2 are both closed, and the output switch S5 is also closed. The primary bypass service switch S3 and the backup bypass service switch S4 are both open. At this time, the current of the main input power 1 flows into the common terminal of the ATS automatic transfer switch 31 through the main input switch S1, and the current of the backup input power 2 flows into the backup terminal of the ATS automatic transfer switch 31 through the backup input switch S2. At this time, the controller 32 detects that the states of the main input power supply 1 and the standby input power supply 2 are both a power-on state, and sets the common terminal of the ATS automatic transfer switch 31 to be on and the standby terminal of the ATS automatic transfer switch 31 to be off according to a default setting. Thus, the current of the main input power source 1 supplies power to the load through the main input switch S1 and the output switch S5. And when the controller 32 detects that the state of the main input power supply 1 is a power-off state and the state of the standby input power supply 2 is a power-on state, the common terminal of the ATS automatic transfer switch 31 is set to be off according to default setting, and the standby terminal of the ATS automatic transfer switch 31 is set to be on. At this time, the current of the standby input power source 2 supplies power to the load through the standby input switch S2 and the output switch S5. This is the condition when the system is operating normally.

If power is still to be guaranteed when the ATS 3 fails, then the main bypass service switch S3 and the backup bypass service switch S4 are needed. In this case, the output switch S5 is first turned off, the main input switch S1 is then turned off, and the backup input switch S2 is then turned off. The entire ATS 3 stops working and no longer supplies power to the back-end load. In order to quickly recover power supply, it is necessary to determine whether the main input power supply 1 and the standby input power supply 2 are powered. The main input power source 1 may be used first, i.e., the main bypass service switch S3 may be closed. At this time, the current of the main input power source 1 supplies power to the load through the main bypass service switch S3 and the output switch S5. If the current of the main input power source 1 is not stable, the main bypass maintenance switch S3 may be opened first, and then the standby bypass maintenance switch S4 may be closed. The current from the backup input power source 2 now powers the load through the backup bypass service switch S4 and the output switch S5. After the above operations are completed. The ATS is in a complete isolation state with the main input power supply 1, the standby input power supply 2 and the load station, so that the ATS can be overhauled or replaced, and the ATS system can be timely restored to a normal working state. If the potential safety hazard exists in the process of worrying about power utilization, the main bypass maintenance switch S3 or the standby bypass maintenance switch S4 can be used for temporarily supplying power to the load, and unified treatment is performed when the whole system is maintained, so that the time for maintaining faults is greatly saved by the aid of the design scheme, and the economic benefits of enterprise operation are improved.

When the ATS fault is repaired and the normal work can be confirmed, the uninterrupted switching of the power supply can be carried out through the following operation steps. It is first determined whether the current power supply is the main input power supply 1 through the main bypass service switch S3 or the backup input power supply 2 through the bypass service switch S4. If the main input power supply 1 supplies power through the main bypass maintenance switch S3 and the normal power supply condition is to be recovered, the following operation steps need to be completed, firstly, the standby input switch S2, the standby bypass maintenance switch S4 and the output switch S5 are ensured to be in the open state, then, the main input switch S1 is closed, at this time, the current of the main input power supply 1 flows into the common end of the ATS automatic transfer switch 31 through the main input switch S1, the controller 32 detects that the state of the main input power supply 1 at the common end of the ATS automatic transfer switch 31 is normal, the controller controls the main input power supply 1 to be closed, the current of the main input power supply 1 flows to the upper end of the output switch S5 through the main input switch S1, and at this time, the output switch S5 is closed. At this time, the current of the main input power source 1 is supplied to the load through the main input switch S1 and the main bypass service switch S3 in parallel. After the load output is stabilized, the main bypass service switch S3 is opened and the backup input switch S2 is closed to supply power to the load normally. Similarly, if the standby input power supply 2 is used for supplying power, the description will not be repeated.

Of course, in a simplified implementation of the present invention, only the main bypass service switch S3 or the backup bypass service switch S4 may be provided, and the same principles as described above will not be repeated here.

The bypass ATS power supply system can be quickly switched to the bypass to ensure the load power supply when the ATS has a fault by simply arranging the bypass maintenance switch, and has simple structure and simple and convenient operation.

In a preferred embodiment of the present invention, the main bypass service switch S3 and the standby bypass service switch S4 include two circuit breakers and are respectively configured with the same opening position lock. The main input switch S1, the spare input switch S2 and the output switch S5 are circuit breakers, that is, S1-S5 are all circuit breakers, which are preferably pluggable or withdrawable circuit breakers, and have completely consistent specifications, so that they have an interchange function, and thus, if a fault occurs in a circuit breaker body, the power supply system can be rapidly restored to power supply by replacing the circuit breaker body.

Preferably, the circuit breaker includes a molded case circuit breaker, a frame circuit breaker, or a micro circuit breaker. Preferably, the first and second liquid crystal materials are,

examples of circuit breakers are used for the main input switch S1, the backup input switch S2, the main bypass service switch S3, the backup bypass service switch S4, and the output switch S5, as further described below.

During normal operation, under normal operating conditions of the bypass ATS power supply system, circuit breakers S1, S2, and S5 are closed. The breaker S3 is opened and locked in the open position and the breaker S4 is opened and locked in the open position. When the controller 32 detects that the states of the main input power supply 1 and the standby input power supply 2 are both a power-on state, it sets the common terminal of the ATS automatic transfer switch 31 to be on according to a default setting, and sets the standby terminal of the ATS automatic transfer switch 31 to be off. And when the controller 32 detects that the state of the main input power supply 1 is a power-off state and the state of the standby input power supply 2 is a power-on state, the common terminal of the ATS automatic transfer switch 31 is set to be off according to default setting, and the standby terminal of the ATS automatic transfer switch 31 is set to be on.

If power supply is still to be guaranteed when the ATS 3 fails, then breakers S3 and S4 are needed. At this time, breaker S5 is opened first, breaker S1 is opened, and breaker S2 is opened. The entire ATS 3 stops working and no longer supplies power to the back-end load. When the main input power source 1 is used first, the opening position lock of the breaker S3 is opened, and the switch of the breaker S3 is closed. At this time, the current of the main input power source 1 supplies power to the load through the main bypass service switch S3 and the output switch S5. If the current of the main input power source 1 is not stable, the switch of the breaker S3 can be opened first, and the breaker S3 can be locked by using the opening position lock of the breaker S3, and then the opening position lock of the breaker S4 can be opened, and the switch of the breaker S4 can be closed. The current from the backup input power source 2 now powers the load through the backup bypass service switch S4 and the output switch S5.

When the ATS fault is repaired and the normal work can be confirmed, the uninterrupted switching of the power supply can be carried out through the following operation steps. If the main input power source 1 is powered through the breaker S3, it is first determined that the switches of breakers S2, S4 and S5 are in the open state, and then the switch of breaker S1 is closed. At this time, the current of the main input power 1 flows into the common terminal of the ATS automatic transfer switch 31 through the breaker S1, the controller 32 detects that the state of the main input power 1 at the common terminal of the ATS automatic transfer switch 31 is normal, and controls it to be closed, and the current of the main input power 1 flows to the upper end of the breaker S5 through the breaker S1, and at this time, the breaker S5 is closed. At this time, the current of the main input power source 1 is connected in parallel to the breaker S1 and the breaker S3 to supply power to the load. After the load output is stable, the switch of the breaker S3 is opened and the opening position lock is locked to prevent misoperation, and then the breaker S2 is closed to normally supply power to the load. Similarly, if the standby input power supply 2 is used for supplying power, the description will not be repeated.

It should be noted that in the above operation, the breakers S3 and S4 can only be closed at one time, and the two switches of the breakers S3 and S4 are strictly closed at the same time. The following can be adopted to ensure operational safety. First, warning signs and advice guidance signs for the operation steps are attached beside the switches of the breakers S3 and S4, and are limited to professional operation. Secondly, the two switches S3 and S4 are respectively provided with an opening position lock. The brake position lock is the same key lock uniformly configured by a switch manufacturer, and is characterized in that a breaker can be switched on only by inserting a key when switching on, and the key can be pulled out when switching off. The two switches of the circuit breakers S3 and S4 are provided with 2 identical key locks, one key is removed, only one key is arranged on the switch, and the key is inserted into the switch when the switch needs to be switched on, so that the two switches can be prevented from being switched on simultaneously.

In a preferred embodiment of the present invention, the main bypass service switch S3 and the standby bypass service switch S4 include two circuit breaker plugging bases and two circuit breaker bodies. Therefore, the breaker bodies of the breakers S3 and S4 can be directly pulled out and stored. When the ATS normally runs, the circuit breaker bodies of the circuit breakers S3 and S4 are pulled out for storage, and when the ATS needs to be used, the circuit breakers S3 and S4 are directly inserted into the circuit breaker base for operation.

In a preferred embodiment of the present invention, the main bypass service switch S3 and the standby bypass service switch S4 include two circuit breaker plugging bases and a circuit breaker body. Thus, when the main bypass maintenance switch S3 or the standby bypass maintenance switch S4 is needed to transmit power, the circuit breaker is only required to be locally inserted into a circuit breaker plugging base which needs to be switched on, and therefore purchasing cost can be reduced, and misoperation can be prevented.

The bypass ATS power supply system can be quickly switched to the bypass to ensure the load power supply when the ATS has a fault by simply arranging the bypass maintenance switch, and has simple structure and simple and convenient operation. By adopting different power supplies and suitable switches, the bypass ATS power supply system has wide current coverage range of 100-6300A, can meet the power consumption requirements of different capacities, and has more switch selectivity.

Fig. 2 is a schematic structural diagram of a bypass ATS power supply system according to a second preferred embodiment of the present invention. Fig. 3 is a schematic layout of the bypass ATS power supply system of fig. 2 with the cabinet open. Fig. 4 is a front view of the bypass ATS power supply system shown in fig. 2 with the cabinet open. As shown in fig. 2-4, in the preferred embodiment, the bypass ATS power supply system includes an ATS 3, a main input power supply 1, a backup input power supply 2, a main input switch S1, a backup input switch S2, a main bypass service switch S3, a backup bypass service switch S4, an output switch S5, a display screen PM, and a cabinet 4. The ATS 3 includes an ATS automatic transfer switch 31 and a controller 32. The main input power source 1 is connected to the common terminal of the ATS automatic transfer switch 31 through the main input switch S1, and the backup input power source 2 is connected to the backup terminal of the ATS automatic transfer switch 31 through the backup input switch S2. The output end of the ATS automatic transfer switch 31 is connected to a load through the output switch S5. The controller 32 controls the on/off of the normal terminal and the standby terminal of the ATS automatic transfer switch 31 based on the states of the main input power supply 1 and the standby input power supply 2. The main bypass service switch S3 connects the main input power source 1 and the load, and the backup bypass service switch S4 connects the backup input power source 2 and the load.

In the preferred embodiment, the main input switch S1, the backup input switch S2, the main bypass service switch S3, the backup bypass service switch S4, and the output switch S5 are all circuit breakers. The ATS 3 can adopt a plug-in ATS or a fixed ATS.

As shown in fig. 2 to 4, the display screen PM is disposed on the first floor of the cabinet 4, the main bypass maintenance switch S3, the main input switch S1, the standby input switch S2 and the standby bypass maintenance switch S4 are sequentially disposed on the second floor of the cabinet 4 side by side, the ATS automatic transfer switch 31 and the controller 32 are disposed on the third floor of the cabinet 4 side by side, and the output switch S5 is disposed on the fourth floor of the cabinet 4. And the main bypass maintenance switch S3 and the standby bypass maintenance switch S4 are both provided with a brake separating position lock K. Of course, in other preferred embodiments of the present invention, the location of the various electronic devices described above may be altered. Of course, in other preferred embodiments of the present invention, the main input switch S1, the standby input switch S2, the main bypass service switch S3, the standby bypass service switch S4, and the output switch S5 may also employ other suitable switching devices, and the bypass ATS power supply system may not include a cabinet.

While the utility model has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from its scope. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. A bypass ATS power supply system is characterized by comprising an ATS, a main input power supply, a standby input power supply, a main input switch, a standby input switch, a bypass maintenance switch and an output switch, the ATS comprises an ATS automatic transfer switch and a controller, the main input power supply is connected with the common end of the ATS automatic transfer switch through the main input switch, the standby input power supply is connected with the standby end of the ATS automatic transfer switch through the standby input switch, the output end of the ATS automatic transfer switch is connected with a load through the output switch, the controller controls the on-off of the common end and the standby end of the ATS automatic transfer switch based on the states of the main input power supply and the standby input power supply, the bypass service switch connects the primary input power source and the load or connects the backup input power source and the load.

2. The bypass-ATS power supply system of claim 1, wherein the bypass service switch includes a main bypass service switch and a backup bypass service switch, the main bypass service switch connecting the main input power source and the load, the backup bypass service switch connecting the backup input power source and the load.

3. The bypass ATS power supply system according to claim 2, wherein the main bypass service switch and the backup bypass service switch include two circuit breakers and are each configured with the same opening position lock.

4. The bypass-ATS power supply system of claim 2, wherein the primary bypass service switch and the backup bypass service switch include two circuit breaker plug bases and one circuit breaker body.

5. The bypass-ATS power supply system of claim 2, wherein the primary bypass service switch and the backup bypass service switch include two circuit breaker plug bases and two circuit breaker bodies.

6. The bypass-ATS power supply system of claim 2, wherein the bypass-ATS power supply system further includes a display screen and a cabinet.

7. The bypass-ATS power supply system according to claim 6, wherein the display screen is disposed on a first floor of the cabinet, the main bypass maintenance switch, the main input switch, the standby input switch and the standby bypass maintenance switch are sequentially disposed side by side on a second floor of the cabinet, the ATS automatic transfer switch and the controller are disposed side by side on a third floor of the cabinet, and the output switch is disposed on a fourth floor of the cabinet.

8. The bypass-ATS power supply system according to claim 1, wherein the primary input switch, the backup input switch, and the output switch are circuit breakers.

9. The bypass ATS power supply system of claim 8, wherein the circuit breaker includes a molded case circuit breaker, a frame circuit breaker, or a miniature circuit breaker.

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