CN202634060U - Duplex communication power supply system for transformer station - Google Patents
Duplex communication power supply system for transformer station Download PDFInfo
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- CN202634060U CN202634060U CN 201220167673 CN201220167673U CN202634060U CN 202634060 U CN202634060 U CN 202634060U CN 201220167673 CN201220167673 CN 201220167673 CN 201220167673 U CN201220167673 U CN 201220167673U CN 202634060 U CN202634060 U CN 202634060U
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- 238000004891 communication Methods 0.000 title claims abstract description 14
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000011664 signaling Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The duplex communication power supply system for a transformer station comprising two groups of 220V DC positive and negative busbars, wherein each group of DC positive and negative busbars is connected with the same circuit; the positive and negative input ends of a UPS power supply are respectively connected with the DC positive and negative busbars; the positive pole of a 220V storage battery group is connected with the DC positive and negative busbars after being in tandem connection with a diode D7 and a diode D8 successively; the negative pole of the storage battery group is connected with the DC positive and negative busbars through a first double-pole switch; a diode D9 and a diode D8 are connected with the diode D7 and the diode D8 in tandem connection in parallel after being in tandem connection; the output end of each phase of the output ends of three phases of an AC contactor with 220VAC or 380V AC is introduced by connecting with the positive pole of the storage battery group through a rectifier and onediode; and the negative output end of the rectifier is connected with the negative pole of the storage battery group. The duplex communication power supply system for a transformer station is integrated with various power supplies, such as AC power supply, DC power supply and UPS communication power supplies, and has the advantages of saving cost for investment and being low in workload for maintenance.
Description
Technical field
The utility model relates to comprehensive DC power system, and particularly transformer station's machine room is used power-supply system with the transformer station's machine room that integrates power supplys such as direct current, interchange, UPS (inversion), communication.
Background technology
Existing transformer station with the operation principle of direct-current signaling power-supply system, ups power system, AC power supply system respectively like Fig. 1, Fig. 2 and shown in Figure 3.
Among Fig. 1, direct current positive bus L+ and direct current negative busbar L-externally export the 48V direct current and supply the direct-current signaling system to use.Among Fig. 2,220V or 380V alternating current connect rectifier through triple-pole switch, and rectifier output end connects the 220V batteries.Fig. 3 illustrates, the annexation of a phase of three-phase inverter.220V or 380V exchange through A.C. contactor and triple-pole switch output AC.
Existing transformer station can only work alone with interchange, UPS, direct-current signaling power-supply system, and maintenance workload is big, it is dumb to operate, cost of investment and maintenance cost are higher.
The utility model content
The purpose of the utility model provides a kind of transformer station that integrates power supplys such as the stream of standing erectly entirely, interchange, UPS (inversion), communication and uses the duplex communication power-supply system.
This novel purpose is achieved in that a kind of transformer station uses the duplex communication power-supply system, comprises ups power, the direct current positive bus L+ of 220V and direct current negative busbar L-, and the direct current positive bus L+ of said 220V and direct current negative busbar L-are two groups; Be connected with the 3rd double-pole switch DK3 between two groups of direct current positive bus L+ and the direct current negative busbar L-; And be connected identical power circuit on every group of direct current positive bus L+ and the direct current negative busbar L-: the positive and negative input of said ups power connects direct current positive bus L+ and direct current negative busbar L-respectively; Be connected to the anodal and diode D9 positive pole of diode D7 behind the anodal serial connection insurance of the 220V batteries E1 RT1 in order; It is anodal that diode D7 negative pole meets diode D6; It is anodal that diode D9 negative pole is connected to diode D8; Diode D6 negative pole and diode D8 negative pole all are connected to the first input contact of the first double-pole switch DK1; The negative pole of batteries E1 is connected to the second input contact of the first double-pole switch DK1, and first, second output contact of the first double-pole switch DK1 is connected to direct current positive bus L+ and direct current negative busbar L-respectively, and the positive and negative input of DC converter is connected to direct current positive bus L+ and direct current negative busbar L-respectively; Above-mentioned DC converter is the 220V/48V DC converter.
Also be connected with AC power on above-mentioned every group of direct current positive bus L+ and the direct current negative busbar L-: the A.C. contactor input is connected 220V or 380V AC power; Each phase output terminal all is connected with a rectifier ZLQ through a triple-pole switch in the three-phase output end of A.C. contactor; It is anodal that the positive output end of this rectifier ZLQ is connected to diode D1; It is anodal that diode D1 negative pole is connected to diode D7, and the negative output terminal of this rectifier ZLQ is connected to the second input contact of the first double-pole switch DK1.
Above-mentioned diode D1 model is 2CZ50A/800V, and diode D6 ~ D9 model is 2CZ300A/800V.
The beneficial effect of the utility model is:
1, design in strict accordance with the power department relevant regulations, power supplys such as the stream of will standing erectly entirely, interchange, UPS (inversion), communication adopt integrated design, integrated configuration, integrated monitoring.
According to Sichuan Province Power Co., Ltd " valve controlled sealed lead-acid accumulator operation and service regulations " 4.5.8 regulation; Two group storage batteries should not adopt the mode of parallel running; If in the time of must adopting parallel running; Then should go into diode (2CZ200A/800V), utilize the characteristic of diode to reduce the circulation that produces in the parallel running process in batteries inlet serial connection; According to " preventing the detailed rules for the implementation of direct current system accident measure " 3.2.2 regulation, dc bus forbids to throw off batteries in the operation of normal operation and change operational mode; And " Sichuan Province Power Co., Ltd electrical network equipment technology standard " 2.12 regulations.
2, reduced cost of investment.
3, maintenance workload and maintenance cost have been reduced.
This is novel to have advantages such as cost is low, flexible operation, intelligent level is high, performance is safe and reliable, and native system mainly is applicable to large-scale and the ultra-large type communications equipment room.
Description of drawings
Fig. 1, Fig. 2, Fig. 3 are respectively the circuit diagrams of existing direct-current signaling power supply, ups power and AC power.
Fig. 4 is this novel circuit diagram.
Embodiment
Fig. 4 illustrates, this novel ups power that comprises, and the direct current positive bus L+ of 220V and direct current negative busbar L-, the direct current positive bus L+ of said 220V and direct current negative busbar L-are two groups; Be connected with the 3rd double-pole switch DK3 between two groups of direct current positive bus L+ and the direct current negative busbar L-; And be connected identical power circuit on every group of direct current positive bus L+ and the direct current negative busbar L-: the positive and negative input of said ups power connects direct current positive bus L+ and direct current negative busbar L-respectively; Be connected to the anodal and diode D9 positive pole of diode D7 behind the anodal serial connection insurance of the 220V batteries E1 RT1 in order; It is anodal that diode D7 negative pole meets diode D6; It is anodal that diode D9 negative pole is connected to diode D8; Diode D6 negative pole and diode D8 negative pole all are connected to the first input contact of the first double-pole switch DK1; The negative pole of batteries E1 is connected to the second input contact of the first double-pole switch DK1, and first, second output contact of the first double-pole switch DK1 is connected to direct current positive bus L+ and direct current negative busbar L-respectively, and the positive and negative input of DC converter is connected to direct current positive bus L+ and direct current negative busbar L-respectively; Above-mentioned DC converter is the 220V/48V DC converter.DC converter adopts existing 220V/48V DC-DC converter.
Also be connected with AC power on every group of direct current positive bus L+ and the direct current negative busbar L-: the A.C. contactor input is connected 220V or 380V AC power; Each phase output terminal all is connected with a rectifier ZLQ through a triple-pole switch in the three-phase output end of A.C. contactor; It is anodal that the positive output end of this rectifier ZLQ is connected to diode D1; It is anodal that diode D1 negative pole is connected to diode D7, and the negative output terminal of this rectifier ZLQ is connected to the second input contact of the first double-pole switch DK1.Among Fig. 4, be connected with discharge loop on each group dc bus.
Diode D1 to D5 model is 2CZ50A/800V, and D6 to D13 model is 2CZ300A/800V.
The concrete operation principle of native system is following:
When 1, two cover power supplys worked independently, the DK1 that closes, DK2 broke off DK3.
2, be equipped with fault or batteries E1 need make capacity test the time when first suit, the DK3 that closes earlier, DK1 is broken off in the back.
3, be equipped with fault or batteries E2 need make capacity test the time when second suit, the DK1 that closes earlier, DK2 is broken off in the back.
4, both sectional operations of I, II section bus, paired running in short-term again, but the both isolated operations of two covering devices, parallel running in short-term again, flexibility is higher.
Claims (3)
1. a transformer station uses the duplex communication power-supply system, comprise, and ups power, the direct current positive bus L+ of 220V and direct current negative busbar L-is characterized in that, the direct current positive bus L+ of said 220V and direct current negative busbar L-are two groups; Be connected with the 3rd double-pole switch DK3 between two groups of direct current positive bus L+ and the direct current negative busbar L-; And be connected identical power circuit on every group of direct current positive bus L+ and the direct current negative busbar L-: the positive and negative input of said ups power connects direct current positive bus L+ and direct current negative busbar L-respectively; Be connected to the anodal and diode D9 positive pole of diode D7 behind the anodal serial connection insurance of the 220V batteries E1 RT1 in order; It is anodal that diode D7 negative pole meets diode D6; It is anodal that diode D9 negative pole is connected to diode D8; Diode D6 negative pole and diode D8 negative pole all are connected to the first input contact of the first double-pole switch DK1; The negative pole of batteries E1 is connected to the second input contact of the first double-pole switch DK1, and first, second output contact of the first double-pole switch DK1 is connected to direct current positive bus L+ and direct current negative busbar L-respectively, and the positive and negative input of DC converter is connected to direct current positive bus L+ and direct current negative busbar L-respectively; Above-mentioned DC converter is the 220V/48V DC converter.
2. use the duplex communication power-supply system according to the described transformer station of claim 1; It is characterized in that; Also be connected with AC power on said every group of direct current positive bus L+ and the direct current negative busbar L-: the A.C. contactor input is connected 220V or 380V AC power; Each phase output terminal all is connected with a rectifier ZLQ through a triple-pole switch in the three-phase output end of A.C. contactor; It is anodal that the positive output end of this rectifier ZLQ is connected to diode D1, and it is anodal that diode D1 negative pole is connected to diode D7, and the negative output terminal of this rectifier ZLQ is connected to the second input contact of the first double-pole switch DK1.
3. use the duplex communication power-supply system according to the described transformer station of claim 2, it is characterized in that, said diode D1 model is 2CZ50A/800V, and diode D6 ~ D9 model is 2CZ300A/800V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220167673 CN202634060U (en) | 2012-04-19 | 2012-04-19 | Duplex communication power supply system for transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220167673 CN202634060U (en) | 2012-04-19 | 2012-04-19 | Duplex communication power supply system for transformer station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202634060U true CN202634060U (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220167673 Expired - Lifetime CN202634060U (en) | 2012-04-19 | 2012-04-19 | Duplex communication power supply system for transformer station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202634060U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607012A (en) * | 2013-11-26 | 2014-02-26 | 国家电网公司 | Special direct-current input power supply for inverter |
| CN105896518A (en) * | 2016-06-03 | 2016-08-24 | 中国联合网络通信集团有限公司 | Power supply system |
-
2012
- 2012-04-19 CN CN 201220167673 patent/CN202634060U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607012A (en) * | 2013-11-26 | 2014-02-26 | 国家电网公司 | Special direct-current input power supply for inverter |
| CN105896518A (en) * | 2016-06-03 | 2016-08-24 | 中国联合网络通信集团有限公司 | Power supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20131226 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131226 Address after: 628000, Binhe Road, Nanhe dam, Sichuan, Guangyuan, 59 Patentee after: Guangyuan Electric Power Bureau of Sichuan Electric Power Company Patentee after: State Grid Corporation of China Address before: 628000, Binhe Road, Nanhe dam, Sichuan, Guangyuan, 59 Patentee before: Guangyuan Electric Power Bureau of Sichuan Electric Power Company |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |