CN203951258U - Accident emergency power supply circuit - Google Patents
Accident emergency power supply circuit Download PDFInfo
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- CN203951258U CN203951258U CN201420350783.1U CN201420350783U CN203951258U CN 203951258 U CN203951258 U CN 203951258U CN 201420350783 U CN201420350783 U CN 201420350783U CN 203951258 U CN203951258 U CN 203951258U
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- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
Propose a kind of accident emergency power supply circuit, belonged to circuit design technique field.Described accident emergency power supply circuit comprises diesel generating set, work PC A section, work PC B section, security personnel PC A section, security personnel PC B section, the first to 11 switch and cable; Wherein: the gate out switch that the 6th switch is described diesel generating set; Second switch and the 3rd switch are respectively the working power feeder switch of security personnel PC A section and security personnel PC B section, and working power is respectively from work PC A section and work PC B section; The first switch and the 4th switch are respectively the stand-by power supply feeder switch of security personnel PC B section and security personnel PC A section, and stand-by power supply is respectively from work PC A section and work PC B section; The 5th switch and minion are closed the electric power incoming line switch of the diesel generating set that is respectively security personnel's PC A section and B section; The 8th switch and the 9th switch are respectively work and the stand-by power supply inlet wire diverter switch of security personnel PC A section and security personnel PC B section; The tenth switch and the 11 switch are respectively work, for subsequent use and diesel generating set electric power incoming line diverter switch of security personnel PC A section and security personnel PC B section.The simple and reliable property of wiring of this programme is high.
Description
Technical field
The utility model relates to circuit design technique field, especially designs a kind of accident emergency power supply circuit.
Background technology
Regulation according to " thermal power plant station service designing technique specifies " 3.0.6 article: " there is power cut of whole factory or in the time that monoblock loses station service; for the safety that ensures unit is stopped transport; later can very fast resetting; or in order to prevent from jeopardizing the reasons such as personal safety, the load that need to proceed power supply in the time having a power failure is accident protective load ".Capacity is 200MW and above unit, and AC safety watl power supply should be set.The accident emergency power supply of the large unit station service electrical system of unit system setting adopts diesel engine generator as emergency power supply more.
Conventional accident emergency power supply circuit as shown in Figure 1.Described circuit comprises diesel generating set 1, work PC A section 2, work PC B section 3, security personnel PC A section 4, security personnel PC B section 5, switch 11-14, switch 21-27 and the cable that above-mentioned components and parts are connected.Wherein, switch 24 is the gate out switch of diesel generating set 1; Switch 11,14 is respectively the working power feeder switch of security personnel's PC A section 4 and B section 5, and power supply is respectively from work PC A section 2 and B section 3; Switch 12 and 13 is respectively the stand-by power supply feeder switch of security personnel's PC B section 5 and A section 4, and stand-by power supply is respectively from work PC A section 2 and B section 3; Switch 23 and 25 is respectively the diesel engine generator electric power incoming line switch of security personnel's PC A section 4 and B section 5; Switch 21 and 27 is respectively the working power service entrance switch of security personnel's PC A section 4 and B section 5; Switch 22 and 26 is respectively the stand-by power supply service entrance switch of security personnel's PC A section 4 and B section 5.The connected mode of each components and parts as shown in Figure 1, repeats no more here.
The shortcoming of conventional accident emergency power supply circuit is: use switch more, probability of failure is large, and the possibility of the PC section dead electricity that causes ensuring public security is larger, wiring more complicated each other.
Utility model content
In order to solve the above-mentioned problems in the prior art, the utility model proposes a kind of new accident emergency power supply circuit, the simple and reliable property of wiring is high.
For this reason, the utility model proposes a kind of accident emergency power supply circuit, described accident emergency power supply circuit comprises diesel generating set, work PC A section, work PC B section, security personnel PC A section, security personnel PC B section, the first to 11 switch and cable; Wherein: the gate out switch that the 6th switch is described diesel generating set; Second switch and the 3rd switch are respectively the working power feeder switch of security personnel PC A section and security personnel PC B section, and working power is respectively from work PC A section and work PC B section; The first switch and the 4th switch are respectively the stand-by power supply feeder switch of security personnel PC B section and security personnel PC A section, and stand-by power supply is respectively from work PC A section and work PC B section; The 5th switch and minion are closed the electric power incoming line switch of the diesel generating set that is respectively security personnel's PC A section and B section; The 8th switch and the 9th switch are respectively work and the stand-by power supply inlet wire diverter switch of security personnel PC A section and security personnel PC B section; The tenth switch and the 11 switch are respectively work, for subsequent use and diesel generating set electric power incoming line diverter switch of security personnel PC A section and security personnel PC B section; Described diesel generating set is connected to the 6th switch, the 6th switch is connected to the 5th switch and minion is closed, the 5th switch is connected to the tenth switch, the tenth switch is connected to security personnel's PC A section and the 8th switch, the 8th switch is connected to second switch and the 4th switch, second switch is connected to work PC A section, and the 4th switch is connected to work PC B section; Minion is closed and is connected to the 11 switch, and the 11 switch is connected to security personnel's PC B section and the 9th switch, and the 9th switch is connected to the 3rd switch and the first switch, and the 3rd switch is connected to work PC B section, and the first switch is connected to work PC A section.
According to an aspect of the present utility model, it is the switch of single-pole single-throw(SPST type that described first to fourth switch and the 5th closes to minion, described the 8th switch and the 9th switch are the switch of single-pole double throw type, and the tenth switch and the 11 switch are each is the switch of two single-pole double throw types of parallel connection, wherein a switch in the tenth switch comprises the first fixed contact and the one or two moving contact, and another switch comprises the second fixed contact and the three or four moving contact, a switch in the 11 switch comprises the first fixed contact and the one or two moving contact, and another switch comprises the second fixed contact and the three or four moving contact, described diesel generating set is connected to the first end of the 6th switch, the second end of the 6th switch connects the first end of the 5th switch, the second end of the 5th switch connects the first moving contact of the tenth switch, the first fixed contact of the tenth switch is connected to the second fixed contact of the tenth switch, the second fixed contact of the tenth switch is connected to security personnel PC A section, the 4th moving contact of the tenth switch is connected to the fixed contact of the 8th switch, the second moving contact of the 8th switch is connected with the first end of second switch, the second end of second switch is connected to work PC A section, the first moving contact of the 8th switch is connected to the first end of the 4th switch, the second end of the 4th switch is connected to work PC B section, the second end of the 6th switch is also connected to the first end that minion is closed, the second end that minion is closed connects the first moving contact of the 11 switch, the first fixed contact of the 11 switch is connected to the second fixed contact of the 11 switch, the second fixed contact of the 11 switch is connected to security personnel PC B section, the 4th moving contact of the 11 switch is connected to the fixed contact of the 9th switch, the second moving contact of the 9th switch is connected with the first end of moving three switches, the second end of the 3rd switch is connected to work PC B section, the first moving contact of the 9th switch is connected to the first end of the first switch, the second end of the first switch is connected to work PC A section.
According to an aspect of the present utility model, the 8th to 11 switches are automatic transfer switch; And described in be connected to the direct or indirect connection by described cable.
Brief description of the drawings
Fig. 1 is the schematic diagram of accident emergency power supply circuit in prior art;
Fig. 2 is the schematic diagram of the accident emergency power supply circuit that the utility model proposes.
Embodiment
In the circuit diagram of Fig. 1 and Fig. 2, identical Reference numeral represents identical components and parts.As shown in Figure 2, the described accident emergency power supply circuit the utility model proposes comprises diesel generating set 1, work PC A section 2, work PC B section 3, security personnel PCA section 4, security personnel PC B section 5, switch 31-34,41-43,51,52,61,62 and cable that above-mentioned components and parts are connected.
Wherein, switch 42 is the gate out switch of diesel generating set 1; Switch 32 and 33 is respectively the working power feeder switch of security personnel's PC A section 4 and B section 5, and working power is respectively from work PC A section 2 and B section 3; Switch 31 and 34 is respectively the stand-by power supply feeder switch of security personnel's PC B section 5 and A section 4, and stand-by power supply is respectively from work PC A section 2 and B section 3; Switch 41 and 43 is respectively the electric power incoming line switch of the diesel generating set 1 of security personnel's PC A section 4 and B section 5; Switch 51 and 52 is respectively work and the stand-by power supply inlet wire diverter switch of security personnel's PC A section 4 and B section 5, the power supply of PC section of making to ensure public security switches between working power and stand-by power supply, and (break-before-make) switched in realization series connection, in one embodiment, switch 51 and 52 is ATS automatic transfer switch; Switch 61 and 62 is respectively security personnel PC A section 4 and the work of B section 5, for subsequent use and diesel generating set electric power incoming line diverter switch, the power supply of PC section of making to ensure public security switches between working power, stand-by power supply and diesel generation electromechanical source, and realization switch (make-before-break) in parallel, in one embodiment, switch 61 and 62 is ACTS automatic transfer switch.
As shown in Figure 1, described switch 31-34, 41-43 is the switch of single-pole single-throw(SPST type, described switch 51 and 52 is the switch of single-pole double throw type, switch 61 and 62 is the switch of two single-pole double throw types of parallel connection, a switch (switch of keeping right in Fig. 2 switch 61) in switch 61 comprises the first fixed contact and the one or two moving contact, another switch (switch keeping left in switch 61) comprises the second fixed contact and the three or four moving contact, a switch (switch keeping left in switch 62) in switch 62 comprises the first fixed contact and the one or two moving contact, another switch (switch of keeping right in switch 62) comprises the second fixed contact and the three or four moving contact.Specifically the connected mode of circuit is introduced below with reference to Fig. 1.
Described diesel generating set 1 is connected to the first end of switch 42, the first end of the second end connecting valve 41 of switch 42, the first moving contact of the second end connecting valve 61 of switch 41, the first fixed contact of switch 61 is connected to the second fixed contact of switch 61, the second fixed contact of switch 61 is connected to security personnel PC A section 4, the 4th moving contact of switch 61 is connected to the fixed contact of switch 51, the second moving contact of switch 51 is connected with the first end of switch 32, the second end of switch 32 is connected to work PC A section 2, the first moving contact of switch 51 is connected to the first end of switch 34, the second end of switch 34 is connected to work PC B section 3,
The second end of switch 42 is also connected to the first end of switch 43, the first moving contact of the second end connecting valve 62 of switch 43, the first fixed contact of switch 62 is connected to the second fixed contact of switch 62, the second fixed contact of switch 62 is connected to security personnel PC B section 5, the 4th moving contact of switch 62 is connected to the fixed contact of switch 52, the second moving contact of switch 52 is connected with the first end of switch 33, the second end of switch 33 is connected to work PC B section, the first moving contact of switch 52 is connected to the first end of switch 31, and the second end of switch 31 is connected to work PC A section 2.
Mentioned above be connected to the direct or indirect connection by cable.
As can be seen here, with respect to prior art, the utility model has reduced number of switches, and the simple and reliable property of wiring is high, can realize by two diverter switches the switching of three-way power.Simultaneously; above-mentioned embodiment is only example; not as the restriction to the utility model protection range; the basic function possessing just to describing it such as the switch of single-pole single-throw(SPST mentioned above, single-pole double throw type; those skilled in the art can adopt any other mode to realize; in addition, the automatic transfer switch of above enumerating also can use the switch of other types to realize, and is not limited to mode mentioned above.Those skilled in the art can revise or adjust above-mentioned execution mode according to actual conditions, in concrete practical application.
Claims (3)
1. an accident emergency power supply circuit, is characterized in that:
Described accident emergency power supply circuit comprises diesel generating set, work PC A section, work PC B section, security personnel PC A section, security personnel PC B section, the first to 11 switch and cable; Wherein:
The gate out switch that the 6th switch is described diesel generating set; Second switch and the 3rd switch are respectively the working power feeder switch of security personnel PC A section and security personnel PC B section, and working power is respectively from work PC A section and work PC B section; The first switch and the 4th switch are respectively the stand-by power supply feeder switch of security personnel PC B section and security personnel PC A section, and stand-by power supply is respectively from work PC A section and work PC B section; The 5th switch and minion are closed the electric power incoming line switch of the diesel generating set that is respectively security personnel's PC A section and B section; The 8th switch and the 9th switch are respectively work and the stand-by power supply inlet wire diverter switch of security personnel PC A section and security personnel PC B section; The tenth switch and the 11 switch are respectively work, for subsequent use and diesel generating set electric power incoming line diverter switch of security personnel PC A section and security personnel PC B section;
Described diesel generating set is connected to the 6th switch, the 6th switch is connected to the 5th switch and minion is closed, the 5th switch is connected to the tenth switch, the tenth switch is connected to security personnel's PC A section and the 8th switch, the 8th switch is connected to second switch and the 4th switch, second switch is connected to work PC A section, and the 4th switch is connected to work PC B section; Minion is closed and is connected to the 11 switch, and the 11 switch is connected to security personnel's PC B section and the 9th switch, and the 9th switch is connected to the 3rd switch and the first switch, and the 3rd switch is connected to work PC B section, and the first switch is connected to work PC A section.
2. accident emergency power supply circuit according to claim 1, is characterized in that:
First to fourth switch and the 5th closes the switch for single-pole single-throw(SPST type to minion, and described the 8th switch and the 9th switch are the switch of single-pole double throw type, and the tenth switch and the 11 switch are each is the switch of two single-pole double throw types of parallel connection; Wherein a switch in the tenth switch comprises the first fixed contact and the one or two moving contact, and another switch comprises the second fixed contact and the three or four moving contact; A switch in the 11 switch comprises the first fixed contact and the one or two moving contact, and another switch comprises the second fixed contact and the three or four moving contact;
Described diesel generating set is connected to the first end of the 6th switch, the second end of the 6th switch connects the first end of the 5th switch, the second end of the 5th switch connects the first moving contact of the tenth switch, the first fixed contact of the tenth switch is connected to the second fixed contact of the tenth switch, the second fixed contact of the tenth switch is connected to security personnel PC A section, the 4th moving contact of the tenth switch is connected to the fixed contact of the 8th switch, the second moving contact of the 8th switch is connected with the first end of second switch, the second end of second switch is connected to work PC A section, the first moving contact of the 8th switch is connected to the first end of the 4th switch, the second end of the 4th switch is connected to work PC B section,
The second end of the 6th switch is also connected to the first end that minion is closed, the second end that minion is closed connects the first moving contact of the 11 switch, the first fixed contact of the 11 switch is connected to the second fixed contact of the 11 switch, the second fixed contact of the 11 switch is connected to security personnel PC B section, the 4th moving contact of the 11 switch is connected to the fixed contact of the 9th switch, the second moving contact of the 9th switch is connected with the first end of moving three switches, the second end of the 3rd switch is connected to work PC B section, the first moving contact of the 9th switch is connected to the first end of the first switch, the second end of the first switch is connected to work PC A section.
3. accident emergency power supply circuit according to claim 1 and 2, is characterized in that:
The 8th to 11 switches are automatic transfer switch; And
The described direct or indirect connection being connected to by described cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420350783.1U CN203951258U (en) | 2014-06-26 | 2014-06-26 | Accident emergency power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420350783.1U CN203951258U (en) | 2014-06-26 | 2014-06-26 | Accident emergency power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203951258U true CN203951258U (en) | 2014-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420350783.1U Expired - Fee Related CN203951258U (en) | 2014-06-26 | 2014-06-26 | Accident emergency power supply circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN203951258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184206A (en) * | 2014-06-26 | 2014-12-03 | 内蒙古电力勘测设计院有限责任公司 | Accident security power supply circuit and switch method thereof |
-
2014
- 2014-06-26 CN CN201420350783.1U patent/CN203951258U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184206A (en) * | 2014-06-26 | 2014-12-03 | 内蒙古电力勘测设计院有限责任公司 | Accident security power supply circuit and switch method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |