CN203871888U - Communication electricity-using apparatus of transformer station integrated power supply - Google Patents
Communication electricity-using apparatus of transformer station integrated power supply Download PDFInfo
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- CN203871888U CN203871888U CN201420222075.XU CN201420222075U CN203871888U CN 203871888 U CN203871888 U CN 203871888U CN 201420222075 U CN201420222075 U CN 201420222075U CN 203871888 U CN203871888 U CN 203871888U
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Abstract
Provided is a communication electricity-using apparatus of a transformer station integrated power supply. The communication electricity-using apparatus comprises a communication device power supply bus, a power supply device, a DC transformation power device, and diodes. The diodes comprise a first diode and a second diode. The positive pole of the first diode is connected with the positive pole of the power supply device. The negative pole of the first diode is connected with the communication device power supply bus. The negative pole of the second diode is connected with the negative pole of the power supply device. The positive pole of the second diode is connected with the communication device power supply bus. In the above transformer station integrated power communication structure, when short circuit or overload occurs to a certain communication device, the output voltage of the DC transformation power device is decreased sharply and the voltage of the power supply device is more than the output voltage of the DC transformation power device. Thus, the power supply device discharges to stabilize voltage on a communication device bus and provide instantaneous disconnection tripping current for an air switch in a fault loop. Therefore, the fault loop is disconnected; a fault range is prevented from being expanded to influence the normal operation of other communication device; and the safety and reliability of communication-used electricity in a transformation station are improved.
Description
Technical field
The utility model relates to substation equipment configuring technical field, particularly relates to a kind of transformer station integrated power supply communication power device.
Background technology
Communication is the nerve of electrical network, is related to the safe operation of whole electrical network and effectively management.At present, the integration power-supply system that transformer station adopts is to take transforming plant DC power supply as core, DC power supply is combined into one with DC transformating power with communicating by letter, for traffic load provides power supply.
In transformer station's integrated power supply by conversion equipment by be converted to-48V of 110V/220V direct current direct current, for all traffic loads provide power supply.When certain communication equipment loop is short-circuited or transships, communication equipment power supply buses cannot provide enough impulse currents to realize the timely cut-out of fault loop, air switch tripping in time, the voltage drop that causes communication equipment power supply buses, other apparatus of load that are connected with communication equipment power supply buses are restarted, affect other communication device works, expanded fault coverage.
Utility model content
Based on this, while being necessary to break down for communication equipment, communication equipment power supply buses voltage drop, the problem that cannot provide enough impulse currents to realize the timely cut-out of fault loop, provides a kind of transformer station integrated power supply communication power device.
Transformer station's integrated power supply communication power device, comprises communication equipment power supply buses, also comprises:
For fault loop provides instantaneous trip electric current, with the electric supply installation of tripping air switch;
Be connected the DC transformating power device of Bing Dui transformer station integrated power supply rectifier cubice output voltage step-down with described communication equipment power supply buses;
Diode, comprise the first diode and the second diode, described the first diode cathode is connected with described electric supply installation is anodal, and negative pole accesses described communication equipment power supply buses, described the second diode cathode is connected with described electric supply installation negative pole, the described communication equipment electricity consumption bus of anodal access.
In an embodiment, described DC transformating power device comprises DC/DC transducer therein.
Therein in an embodiment, described DC/DC transducer comprises electromagnetic interface filter, inverter, output isolator and current rectifying and wave filtering circuit, described electromagnetic interface filter, inverter, output isolator are connected successively with current rectifying and wave filtering circuit, described electromagnetic interface filter is connected with described transformer station integrated power supply rectifier cubice, and described current rectifying and wave filtering circuit is connected with described communication equipment power supply buses.
Therein in an embodiment, described electric supply installation comprises 24 joint storage batterys of the series connection in transformer station's integrated power supply batteries, every joint battery tension is 2V, the positive pole of the first segment storage battery of 24 joint storage batterys of described series connection is connected with described the first diode cathode, and the negative pole of the final section storage battery of 24 joint storage batterys of described series connection is connected with described the second diode cathode.
In an embodiment, also comprise communication equipment therein, described communication equipment adopts earth-free supply power mode, and is connected with described communication equipment electricity consumption bus.
Therein in an embodiment, also comprise respectively the electric parameter of described electric supply installation and described DC transformating power device is monitored, and monitor message being sent to the supervising device of monitor terminal, described supervising device is connected with described DC transformating power device with described electric supply installation respectively.
Therein in an embodiment, described supervising device comprises electric supply installation on-line monitoring unit, DC transformating power device on-line monitoring unit and intellectual monitoring processing unit, described electric supply installation on-line monitoring unit is connected with described electric supply installation, described DC transformating power device on-line monitoring unit is connected with described DC transformating power device, and described electric supply installation on-line monitoring unit and described DC transformating power device on-line monitoring unit are sent to monitoring information respectively described intellectual monitoring processing unit.
Above-mentioned transformer station integrated power supply communication power device, when certain communication equipment is short-circuited or transships, DC transformating power device output voltage sharply declines, electric supply installation voltage is higher than DC transformating power device output voltage, electric supply installation electric discharge, voltage on communication equipment bus is surely held, and provide hit drop-away current for the air switch of fault loop, disjunction fault loop, avoid fault coverage to expand, affect other communication equipments and normally move, improved the safety and reliability of transformer substation communication electricity consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation of transformer station's integrated power supply communication power device of an execution mode;
Fig. 2 is the structural representation of DC/DC transducer of the transformer station integrated power supply communication power device of an execution mode.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.In accompanying drawing, provided preferred embodiment of the present utility model.But the utility model can be realized in many different forms, be not limited to embodiment described herein.On the contrary, providing the object of these embodiment is to make to the understanding of disclosure of the present utility model more thoroughly comprehensively.
It should be noted that, when element is called as " being fixed on " another element, can directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may have centering elements simultaneously.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology of using are herein identical with the implication that belongs to the common understanding of those skilled in the art of the present utility model with scientific terminology.The term using in specification of the present utility model herein, just in order to describe the object of specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
Refer to Fig. 1, a kind of transformer station integrated power supply communication power device, comprises electric supply installation 110, DC transformating power device 120, diode 130 and communication equipment power supply buses 140.
Diode 130 comprises the first diode 132 and the second diode 134, the first diode 132 is anodal to be connected with electric supply installation 110 is anodal, negative pole access communications equipment power supply buses 140, the second diode 134 negative poles are connected with electric supply installation 110 negative poles, anodal access communications equipment power supply buses 140.Communication equipment 150 is access communications equipment power supply buses 140 respectively, forms current supply circuit with the first diode 132, electric supply installation 110 and the second diode 134.
Be appreciated that, the first diode 132 and the second diode 134 adopt the diode of the overcurrent amount matching with electric supply installation 110 output currents, to guarantee that electric supply installation 110 output currents can pass through the first diode 132 and the second diode 134, the electric supply installation 110 of tripping air switch (not shown).
Communication equipment 150 is connected with communication equipment power supply buses 140; between communication equipment 150 and communication equipment power supply buses 140, be provided with air switch; when certain communication equipment 150 is short-circuited or transships, air switch tripping is protected communication equipment 150 and current supply circuit.
Need be appreciated that air switch is a kind ofly to only have short circuit or seriously transship phenomenon, air switch forms a kind of switch will tripping in loop, and air switch tripping operation has two necessary conditions: electric current and duration.Varying in size of drop-away current, air switch needed duration of tripping is also different.Usually, air switch can trip 3～5 times of rated current time remaining 20ms～40ms times.
In the present embodiment, under communication equipment 150 normal operation, electric supply installation 110 voltages are lower than DC transformating power device 120 output voltages, by DC transformating power device 120, provide power supply for communication equipment 150.When certain communication equipment 150 is short-circuited or transships, DC transformating power device 120 output voltages sharply decline, electric supply installation 110 voltages are higher than DC transformating power device 120 output voltages, electric supply installation 110 electric discharges, voltage on communication equipment power supply buses 140 is surely held, and hit drop-away current is provided, tripping air switch, avoids fault coverage to expand.After communication equipment 150 trouble shootings, DC transformating power device 120 output voltages recover, and higher than electric supply installation 110 voltages, electric supply installation 110 stops electric discharge, continues as communication equipment 150 power supply is provided by DC transformating power device 120.
Above-mentioned transformer station integrated power supply communication structure, when certain communication equipment 150 is short-circuited or transships, DC transformating power device 120 output voltages sharply decline, electric supply installation 110 voltages are higher than DC transformating power device 120 output voltages, electric supply installation 110 electric discharges, voltage on communication equipment power supply buses 140 is surely held, and provide hit drop-away current for the air switch of fault loop, disjunction fault loop, avoid fault coverage other communication equipments that widen one's influence normally to move, improved the safety and reliability of transformer substation communication electricity consumption.
In addition, the first diode 132 and the second diode 134 have unilateal conduction characteristic, namely with the positive pole from diode, the direction to negative pole flows through electric current only, DC transformating power device 120 can, to electric supply installation 110 chargings, further not improve the safety and reliability of transformer station's integrated power supply communication power device.
In an embodiment, DC transformating power device 120 comprises DC chopped-wave (Direct Current/Direct Current, DC/DC) transducer therein.DC/DC transducer can regulate output voltage.In transformer station's integrated power supply, by rectifier cubice 160, alternating current is converted to direct current, in the present embodiment, be that 380V is exchanged to the direct current output that input is converted to 110V/220V.
According to international standard and national standard, high pressure need to be converted to low pressure, be communication equipment 150 power supplies, so DC/DC transducer can be realized this function, and then the normal operation of assurance transformer substation communication equipment, other supply power modes such as storage battery need not be set, simplify the structure, saved operating cost.
Therein in an embodiment, DC/DC transducer comprises electromagnetic interference (Electromagnetic Interference, EMI) filter 122, inverter 124, output isolator 126 and current rectifying and wave filtering circuit 128, electromagnetic interface filter 122, inverter 124, output isolator 126 are connected successively with current rectifying and wave filtering circuit 128, electromagnetic interface filter 122Yu transformer station integrated power supply rectifier cubice 160 connects, and current rectifying and wave filtering circuit 128 is connected with communication equipment power supply buses 140.So, high pressure can be converted to low pressure, for communication equipment 150 power supplies, guarantee the normal operation of communication equipment 150.
Refer to Fig. 1, therein in an embodiment, electric supply installation 110 comprises 24 joint storage batterys of the series connection in transformer station's integrated power supply batteries, the positive pole of the first segment storage battery 122 of 24 joint storage batterys of described series connection is connected with described the first diode 132 positive poles, and the negative poles of the final section storage battery 124 of 24 joint storage batterys of described series connection are connected with described the second diode 134 negative poles.
Transformer station's integrated power supply (220V/110V) comprises batteries and rectifier cubice 160, and rectifier cubice 160 is converted to direct current by alternating current, and for station provides power supply with equipment, when breaking down, batteries provides power supply for standing with equipment.
Usually, transformer substation communication power supply is direct current 48V, therefore, chooses the 24 joint storage batterys of connecting in transformer station's integrated power supply storage battery, every joint 2V, the batteries that composition nominal voltage is 48V.Certainly, in other embodiments, the quantity of storage battery and voltage swing can be determined according to the specification of communication equipment power supply.At first segment storage battery 122 and final section storage battery 124, drawing wire is connected with diode 130.The positive pole of first segment storage battery 122 is connected with the first diode 132 positive poles, and the negative pole of final section storage battery 124 is connected with the second diode 134 negative poles.
The batteries of transformer station's integrated power supply, by DC charging motor screen, charged, then by transformer station's integrated power supply rectifier cubice 160 distribution, exported, if DC transformating power device 120 output voltages charge to transformer station's integrated power supply batteries, reduce reliability and the fail safe of system, and increased system loss.
So, choose the 24 joint storage batterys of connecting in transformer station's integrated power supply storage battery communication power supply is provided, batteries in Ke Jiang transformer station integrated power supply makes full use of, electric supply installation need not be set separately, batteries for example, for communication equipment 150 fault loop provide instantaneous trip electric current, simplify the structure, reduced manufacturing cost and operating cost.
In addition, fault loop during not only for generation communication equipment 150 fault provides instantaneous trip electric current, also having avoided DC transformating power device 120 output voltages is that the integrated batteries of transformer station is charged, and has improved the reliability and security of transformer station's integration power-supply system.
In an embodiment, transformer station's integrated power supply communication power device also comprises communication equipment 150 therein, and communication equipment 150 adopts earth-free supply power mode, and is connected with communication equipment power supply buses 140.So, when Yu transformer station integrated power supply is shared batteries, do not increase the operation risk of transformer station's integration power-supply system, improved the reliability of transformer station's integrated power supply communication power device.It should be noted that, earth-free supply power mode refers to that both positive and negative polarity is all earth-free, the supply power mode that voltage suspends.
Therein in an embodiment, transformer station's integrated power supply communication power device also comprises respectively to be monitored electric supply installation 110 and the electric parameter of described DC transformating power device 120, and monitor message being sent to the supervising device (not shown) of monitor terminal, described supervising device is connected with described DC transformating power device 120 with described electric supply installation 110 respectively.
Supervising device can be monitored the information such as the voltage, electric current of electric supply installation 110 in real time, and after monitor message is processed, is sent to monitor terminal; Supervising device is also monitored the electric parameters such as the input voltage, input current, output voltage, output current, load condition, power factor (PF) of DC transformating power device 120, and monitor message is sent to monitor terminal.Whether in addition, monitor terminal also can send monitoring alarm, break down, and take measures so that monitor staff learns.
For example, supervising device monitors electric supply installation 110 and starts electric discharge, monitor message is sent to monitor terminal, and monitor terminal sends monitoring alarm, and prompting troubleshooting, so that monitor staff takes measures.
Therein in an embodiment, supervising device comprises electric supply installation on-line monitoring unit, DC transformating power device on-line monitoring unit and intellectual monitoring processing unit, described electric supply installation on-line monitoring unit is connected with described electric supply installation 110, described DC transformating power device on-line monitoring unit is connected with described DC transformating power device 120, and described electric supply installation on-line monitoring unit and described DC transformating power device monitoring unit are sent to monitoring information respectively intellectual monitoring processing unit.
Electric supply installation on-line monitoring unit is monitored the electric parameter of electric supply installation 110, DC transformating power device on-line monitoring unit is monitored the electric parameter of DC transformating power device 120, and monitoring information is sent to intellectual monitoring processing unit focuses on and analyze, then be sent to monitoring terminal, send monitoring alarm, prompting troubleshooting.So, reliability and the intelligent level of transformer station's integrated power supply have been improved.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (7)
1.Yi Zhong transformer station integrated power supply communication power device, comprises communication equipment power supply buses, it is characterized in that, also comprises:
For fault loop provides instantaneous trip electric current, with the electric supply installation of tripping air switch;
Be connected the DC transformating power device of Bing Dui transformer station integrated power supply rectifier cubice output voltage step-down with described communication equipment power supply buses;
Diode, comprise the first diode and the second diode, described the first diode cathode is connected with described electric supply installation is anodal, and negative pole accesses described communication equipment power supply buses, described the second diode cathode is connected with described electric supply installation negative pole, the described communication equipment electricity consumption bus of anodal access.
2. transformer station according to claim 1 integrated power supply communication power device, is characterized in that, described DC transformating power device comprises DC/DC transducer.
3. transformer station according to claim 2 integrated power supply communication power device, it is characterized in that, described DC/DC transducer comprises electromagnetic interface filter, inverter, output isolator and current rectifying and wave filtering circuit, described electromagnetic interface filter, inverter, output isolator are connected successively with current rectifying and wave filtering circuit, described electromagnetic interface filter is connected with described transformer station integrated power supply rectifier cubice, and described current rectifying and wave filtering circuit is connected with described communication equipment power supply buses.
4. transformer station according to claim 1 integrated power supply communication power device, it is characterized in that, described electric supply installation comprises 24 joint storage batterys of the series connection in transformer station's integrated power supply batteries, every joint battery tension is 2V, the positive pole of the first segment storage battery of 24 joint storage batterys of described series connection is connected with described the first diode cathode, and the negative pole of the final section storage battery of 24 joint storage batterys of described series connection is connected with described the second diode cathode.
5. transformer station according to claim 4 integrated power supply communication power device, is characterized in that, also comprise communication equipment, described communication equipment adopts earth-free supply power mode, and is connected with described communication equipment electricity consumption bus.
6. transformer station according to claim 1 integrated power supply communication power device, it is characterized in that, also comprise respectively the electric parameter of described electric supply installation and described DC transformating power device is monitored, and monitor message being sent to the supervising device of monitor terminal, described supervising device is connected with described DC transformating power device with described electric supply installation respectively.
7. transformer station according to claim 6 integrated power supply communication power device, it is characterized in that, described supervising device comprises electric supply installation on-line monitoring unit, DC transformating power device on-line monitoring unit and intellectual monitoring processing unit, described electric supply installation on-line monitoring unit is connected with described electric supply installation, described DC transformating power device on-line monitoring unit is connected with described DC transformating power device, described electric supply installation on-line monitoring unit and described DC transformating power device on-line monitoring unit are sent to monitoring information respectively described intellectual monitoring processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420222075.XU CN203871888U (en) | 2014-04-30 | 2014-04-30 | Communication electricity-using apparatus of transformer station integrated power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420222075.XU CN203871888U (en) | 2014-04-30 | 2014-04-30 | Communication electricity-using apparatus of transformer station integrated power supply |
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| CN203871888U true CN203871888U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420222075.XU Expired - Fee Related CN203871888U (en) | 2014-04-30 | 2014-04-30 | Communication electricity-using apparatus of transformer station integrated power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928964A (en) * | 2014-04-30 | 2014-07-16 | 中国能源建设集团广东省电力设计研究院 | Transformer substation integrated power source communication power utilization device |
| CN106026355A (en) * | 2016-05-30 | 2016-10-12 | 河南昊方通信工程技术有限公司 | Direct current power supply system for communication |
-
2014
- 2014-04-30 CN CN201420222075.XU patent/CN203871888U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928964A (en) * | 2014-04-30 | 2014-07-16 | 中国能源建设集团广东省电力设计研究院 | Transformer substation integrated power source communication power utilization device |
| CN103928964B (en) * | 2014-04-30 | 2015-11-18 | 中国能源建设集团广东省电力设计研究院有限公司 | Transformer station's integrated power supply communication power device |
| CN106026355A (en) * | 2016-05-30 | 2016-10-12 | 河南昊方通信工程技术有限公司 | Direct current power supply system for communication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
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| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: Guangdong Electric Power Design Institute of CEEC |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20210430 |