CN202957654U - Electricity-interference-resistant control loop of alternating current low voltage electric comprehensive automatic system - Google Patents
Electricity-interference-resistant control loop of alternating current low voltage electric comprehensive automatic system Download PDFInfo
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- CN202957654U CN202957654U CN 201220664262 CN201220664262U CN202957654U CN 202957654 U CN202957654 U CN 202957654U CN 201220664262 CN201220664262 CN 201220664262 CN 201220664262 U CN201220664262 U CN 201220664262U CN 202957654 U CN202957654 U CN 202957654U
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- circuit breaker
- power supply
- contactor
- uninterrupted power
- control loop
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Abstract
The utility model relates to an electric control loop, in particular to an electricity-interference-resistant control loop of an alternating current low voltage electric comprehensive automatic system. Two uninterruptible power supplies are connected in parallel, the input end of a first uninterruptible power supply is connected with a first contactor and a first circuit breaker which are connected in series through an eighth circuit breaker and then connected with first 380 V voltage. The input end of a second uninterruptible power supply is connected with a second contactor and a second circuit breaker which are connected in series through a ninth circuit breaker and then connected with second 380 V voltage. The first contactor and the second contactor are connected in parallel, and the first circuit breaker and the second circuit breaker are connected in parallel. The output end of the first uninterruptible power supply is connected with a control cabinet busbar of the electric comprehensive automatic system through a fifth circuit breaker, and the output end of the second uninterruptible power supply is connected with a control cabinet busbar source of the electric comprehensive automatic system through a fifth circuit breaker. The control loop can work normally and prevents system contactor trip caused by disturbance of an external power supply system.
Description
Technical field
The utility model relates to a kind of electric control loop, specifically a kind of low voltage alternating electric complex automatic system voltage shock avoiding control loop.
Background technology
Existing low voltage alternating electric complex automatic system is field of metallurgy electric control system commonly used, because existing low voltage alternating electric complex automatic system does not possess many uninterrupted power supplys, the two-way civil power can preferably not automatically switch, externally in the situation of loss of power, the deterioration of power supply quality, switching, can't guarantee the control loop normal operation, low voltage AC contactor easily occurs to thread off and trip accident, affects production safety.
The utility model content
Technical problem to be solved in the utility model is, overcome the shortcoming of prior art, a kind of electrical integrated automation system voltage shock avoiding control loop is provided, can guarantees the control loop normal operation, prevent from threading off and tripping operation because the external power source system disturbance causes the system contactor.
The technical scheme that the utility model solves the total problem of above technology is:
Low voltage alternating electric complex automatic system voltage shock avoiding control loop, comprise uninterrupted power supply, circuit breaker and contactor, and uninterrupted power supply is provided with two, and two uninterrupted power supply parallel connections all are connected to battery pack on two uninterrupted power supplys; Connect a 380V voltage after the first contactor that the input of the first uninterrupted power supply is connected by the 8th circuit breaker connection and the first circuit breaker; Connect the 2nd 380V voltage after the second contactor that the input of the second uninterrupted power supply is connected by the 9th circuit breaker connection and the second circuit breaker; The first contactor and the second contactor parallel connection, the first circuit breaker and the second circuit breaker parallel connection; The output of the first uninterrupted power supply is connected to electrical integrated automation system control cabinet busbar by the 5th circuit breaker, and the output of the second uninterrupted power supply is connected to electrical integrated automation system control cabinet busbar source by the 6th circuit breaker.
The technical scheme that the utility model further limits is:
Aforesaid low voltage alternating electric complex automatic system voltage shock avoiding control loop, the live wire of control cubicle busbar and zero line are by the 7th circuit breaker mother.
The beneficial effects of the utility model are: two uninterrupted power supply parallel operation operations of the utility model, the two-way civil power preferably automatically switches, externally in the situation of loss of power, the deterioration of power supply quality, switching, can guarantee the control loop normal operation, low voltage AC contactor is not threaded off, trip accident.
The accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Embodiment
The present embodiment provides a kind of low voltage alternating electric complex automatic system voltage shock avoiding control loop, circuit as shown in Figure 1, comprises uninterrupted power supply, circuit breaker and contactor, and uninterrupted power supply is provided with two, two uninterrupted power supply parallel connections, all be connected to battery pack on two uninterrupted power supplys; Connect a 380V voltage after the first contactor KM1 that the input of the first uninterrupted power supply UPS1 is connected by the 8th circuit breaker Q 8 connections and the first circuit breaker Q 1; Connect the 2nd 380V voltage after the second contactor KM2 that the input of the second uninterrupted power supply UPS2 is connected by the 9th circuit breaker Q 9 connections and the second circuit breaker Q 2; The first contactor KM1 and the second contactor KM2 parallel connection, the first circuit breaker Q 1 and the second circuit breaker Q 2 parallel connections; The output of the first uninterrupted power supply UPS1 is connected to electrical integrated automation system control cabinet busbar by the 5th circuit breaker Q 5, and the output of the second uninterrupted power supply UPS2 is connected to electrical integrated automation system control cabinet busbar source by the 6th circuit breaker Q 6.The live wire of control cubicle busbar and zero line are by the 7th circuit breaker Q 7 mothers.
For guaranteeing reliability of operation, the classification power supply is taked in the control loop power supply, and low tension switch coordinates step by step, and the UPS state is communicated by letter and accessed in real time the electrical integrated automation system by the third party.
Two uninterrupted power supply parallel operation operations of the utility model, the two-way civil power preferably automatically switches, and externally in the situation of loss of power, the deterioration of power supply quality, switching, can guarantee the control loop normal operation, and low voltage AC contactor is not threaded off, trip accident.
In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (2)
1. low voltage alternating electric complex automatic system voltage shock avoiding control loop, it is characterized in that: comprise uninterrupted power supply, circuit breaker and contactor, described uninterrupted power supply is provided with two, and two uninterrupted power supply parallel connections all are connected to battery pack on two uninterrupted power supplys; Connect a 380V voltage after the first contactor (KM1) that the input of the first uninterrupted power supply (UPS1) is connected by the 8th circuit breaker (Q8) connection and the first circuit breaker (Q1); Connect the 2nd 380V voltage after the second contactor (KM2) that the input of the second uninterrupted power supply (UPS2) is connected by the 9th circuit breaker (Q9) connection and the second circuit breaker (Q2); Described the first contactor (KM1) and the second contactor (KM2) parallel connection, described the first circuit breaker (Q1) and the second circuit breaker (Q2) parallel connection; The output of described the first uninterrupted power supply (UPS1) is connected to electrical integrated automation system control cabinet busbar by the 5th circuit breaker (Q5), and the output of described the second uninterrupted power supply (UPS2) is connected to electrical integrated automation system control cabinet busbar source by the 6th circuit breaker (Q6).
2. low voltage alternating electric complex automatic system voltage shock avoiding control loop as claimed in claim 1 is characterized in that: the live wire of described control cubicle busbar and zero line are by the 7th circuit breaker (Q7) mother.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664262 CN202957654U (en) | 2012-12-05 | 2012-12-05 | Electricity-interference-resistant control loop of alternating current low voltage electric comprehensive automatic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664262 CN202957654U (en) | 2012-12-05 | 2012-12-05 | Electricity-interference-resistant control loop of alternating current low voltage electric comprehensive automatic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202957654U true CN202957654U (en) | 2013-05-29 |
Family
ID=48463206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220664262 Expired - Lifetime CN202957654U (en) | 2012-12-05 | 2012-12-05 | Electricity-interference-resistant control loop of alternating current low voltage electric comprehensive automatic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202957654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810916A (en) * | 2014-01-24 | 2015-07-29 | 上海华林工业气体有限公司 | UPS wiring circuit used in HYCO factory |
-
2012
- 2012-12-05 CN CN 201220664262 patent/CN202957654U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810916A (en) * | 2014-01-24 | 2015-07-29 | 上海华林工业气体有限公司 | UPS wiring circuit used in HYCO factory |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130529 |