CN202153632U - Automatic reclosing power supply protector of communication system - Google Patents
Automatic reclosing power supply protector of communication system Download PDFInfo
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- CN202153632U CN202153632U CN2011202563949U CN201120256394U CN202153632U CN 202153632 U CN202153632 U CN 202153632U CN 2011202563949 U CN2011202563949 U CN 2011202563949U CN 201120256394 U CN201120256394 U CN 201120256394U CN 202153632 U CN202153632 U CN 202153632U
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- communication system
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Abstract
The utility model discloses an automatic reclosing power supply protector of a communication system, comprising a detection unit used for detecting AC power supply signals and a control processor used for controlling breaking/closing according to a detection result, wherein the detection unit is connected with an AC power supply and comprises a voltage transformer, a current transformer and an electric leakage sensor, and the voltage transformer, the current transformer and the electric leakage sensor are parallelly connected; and the control processor is respectively connected with the voltage transformer, the current transformer and the electric leakage sensor. The protector has an automatic reclosing function, can improve operation and maintenance efficiency and can reduce maintenance cost. The protector is low in power consumption, energy saving and environmental friendly. Besides, the protector is also provided with an intelligent interface, so power supply situations of a device can be remotely monitored and controlled, and no person needs to be on site to manually switch on the power supply.
Description
Technical field
The utility model belongs to the electronic communication field, relates to a kind of communication system automatic reclosing power supply protector.
Background technology
In the GSM, mobile base station or outdoor active equipment (like RRU, repeater etc.) is prime air switch or earth leakage circuit-breaker meeting trip protection when faults such as experience thunderbolt, overcurrent, overvoltage, surge, electric leakage.Because the remote unattended operation in most of places, the on-site manual of need sending someone after facilities air switch or the earth leakage circuit-breaker tripping operation recovers, and has increased maintenance cost greatly.The power down of equipment causes call drop, and telephone traffic reduces, and customer complaint increases.There is following shortcoming in the electric leakage air switch of base station use at present:
A, because outdoor equipment itself institute is intrinsic, distribute extensively, poor working environment, for maintenance has brought a series of problem;
B, production, household electricity excessively cause line voltage, electrical current fluctuations very big, cause that air switch, leakage switch trip phenomenon often occur;
C, thunderstorm weather because the base station riding position is higher, very easily receive effects of lightning;
Can not close a floodgate again automatically after d, air switch, the leakage switch tripping operation, need manual work to close a floodgate one by one.
The utility model content
The utility model technical problem to be solved is: a kind of communication system automatic reclosing power supply protector is provided, and this protector can automatic closing, need not to operate manually.
For solving the problems of the technologies described above, the utility model adopts following technical scheme.
A kind of communication system automatic reclosing power supply protector comprises in order to the detecting unit that detects ac supply signal with in order to the processor controls according to testing result control disconnection/combined floodgate; Said detecting unit links to each other with AC power, comprises voltage transformer, current transformer and the electricity leakage sensor of parallel connection; Said processor controls links to each other with said voltage transformer, current transformer and electricity leakage sensor respectively.
As a kind of preferred version of the utility model, said protector also comprises the accessory power supply in order to auxiliary power supply that links to each other with AC power, and said accessory power supply links to each other with said processor controls.
As the another kind of preferred version of the utility model, said protector also comprises the relay that links to each other with said processor controls.
Another preferred version as the utility model; Said protector is provided with external interface, and said external interface comprises in order to the three-phase input end of incoming transport power supply, in order to the three-phase output end of output AC electricity, in order to the indication port of display working condition, in order to what the protector operating state was set port, COM1 in order to communicate by letter with remote equipment is set.
As another preferred version of the utility model, said protector links to each other with the operating state display of outside through the indication port.
As another preferred version of the utility model, said protector links to each other with the operating state controller of outside through port is set.
As another preferred version of the utility model, said protector links to each other with the watch-dog of outside through COM1.
The beneficial effect of the utility model is: the utlity model has the automatic reclosing function, can improve O&M efficient, reduce maintenance cost, and low in energy consumption, energy-conserving and environment-protective; Have intelligence interface in addition, but the electric power thus supplied of remote supervisory and control(ling) equipment; Need not the staff closes a floodgate to on-site manual.
Description of drawings
Fig. 1 is the application sketch map of the described communication system automatic reclosing of the utility model power supply protector in the communication electric power system;
Fig. 2 is the external interface sketch map of the described communication system automatic reclosing of the utility model power supply protector;
Fig. 3 is the internal structure sketch map of the described communication system automatic reclosing of the utility model power supply protector.
Embodiment
The described communication system automatic reclosing of the utility model power supply protector be a kind of be widely used in transmitting electricity with supply line on effective anti-accident measures device.Promptly when circuit broke down, after relaying protection made circuit breaker trip, the automatic reclosing power supply protector made circuit breaker close again behind short time interval.In most of the cases; Line fault is temporary (like thunderbolt, windburn etc.), and the insulation property of circuit behind the circuit breaker trip (insulator and air gap) can be restored, and overlapping once more can be successful; And then can continue power supply, significantly improve the reliability of power system power supply.
Below in conjunction with accompanying drawing the embodiment of the utility model is done further explain.
Embodiment one
Present embodiment provides a kind of communication system automatic reclosing power supply protector, and is as shown in Figure 1, and this communication system automatic reclosing power supply protector is arranged between AC power and the traffic load.
As shown in Figure 2, the external interface of communication system automatic reclosing power supply protector comprises three-phase input end, three-phase output end, and the indication port is provided with port and COM1 (being the RS232 port).
As shown in Figure 3; Communication system automatic reclosing power supply protector comprises the current transformer that links to each other with AC power; The voltage transformer that links to each other with AC power, the electricity leakage sensor that links to each other with AC power, the accessory power supply that links to each other with AC power; Processor controls, relay (being to control on/off).The peripheral components of communication system automatic reclosing power supply protector comprises the operating state display, operating state controller, watch-dog.
Said accessory power supply, voltage transformer, current transformer, electricity leakage sensor all link to each other with processor controls; With thinking that processor controls provides reference signals such as accessory power supply, mutual induction of voltage signal, electric current mutual inductance signal and electric leakage signal, supply processor controls to judge that according to reference signal actual conditions make the processing of whether closing a floodgate and determine.The automatic reclosing power supply protector links to each other with the operating state display through the indication port, in order to directly to demonstrate the operating state of automatic reclosing power supply protector.The automatic reclosing power supply protector links to each other with the operating state controller through port is set, in order to realize the control to the automatic reclosing power supply protector.The automatic reclosing power supply protector links to each other with watch-dog through the RS232 port, in order to realize remote monitoring function.
Said AC power is the power supply of three-phase/two phases/single-phase compatibility, and is arbitrary relatively when leakage current exceeds standard, and processor controls all can be made the trip protection action.
Carry out the combined floodgate condition before communication system automatic reclosing power supply protector powers on and detect, testing conditions comprises:
1, input overvoltage: voltage transformer detects AC power input overvoltage;
2, input under voltage: voltage transformer detects AC power input under voltage;
3, output phase line shorted to earth: current transformer detects AC power output overcurrent or short circuit;
4, input zero line open circuit (optional): the input zero line that current transformer detects AC power breaks off;
When above-mentioned any condition did not meet, processor controls all can not made feed motion, and processor controls is just understood automatic closing when having only above-mentioned condition all to satisfy, and continues cycle detection then.
The protection project process prescription of the utility model is following:
Overvoltage protection: after the mains input voltage surpasses 270V ± 10V and continued to reach 3 seconds, the leakage switch trip protection, the overvoltage malfunction indicator lamp above the panel is bright.In the 105V-265V scope is arrived in the city power recovery and after continuing for 30 seconds, the overvoltage trouble shooting, the overvoltage indicator light extinguishes, if system does not have then automatic reclosing power supply protector automatic reclosing of other faults again.
Under-voltage protection: when the mains input voltage less than 100V ± 10V and after continuing to reach 3 seconds, the leakage switch trip protection, the under-voltage indicator light above the panel is bright.In the 105V-265V scope is arrived in the city power recovery and after continuing for 30 seconds, under-voltage trouble shooting, under-voltage indicator light extinguishes, if system does not have then automatic reclosing power supply protector automatic reclosing of other faults again.
Earth leakage protective: when electricity leakage sensor detects arbitrary leakage current relatively above 200mA, trip protection; In leakage current returns to the 150mA scope and after continuing for 30 seconds, leak current fault is removed, if system does not have then automatic reclosing power supply protector automatic reclosing of other faults again.
Overcurrent protection: when system's output current was provided with a little for 3 seconds greater than overcurrent after, system's trip protection, overcurrent/short circuit indicator light is long bright.The automatic reclosing power supply protector can carry out reclosing after 30 seconds attempts.After overcurrent was removed, the automatic reclosing power supply protector can continue operate as normal.
Short-circuit protection: when system's output current during greater than 50A, system can be in 50 milliseconds trip protection, this moment overcurrent/short circuit indicator light flicker, the protector self-locking.Have only unshorting fault (deenergization, after waiting a moment opening power) the again automatic reclosing power supply protector of laying equal stress on after the starting system to close a floodgate once more.
The zero line open-circuit-protection: the input zero line that detects AC power when current transformer breaks off, and trip protection is answered by system, damages because of the neutral point potential shift to protect back level equipment.
The important technological parameters of the utility model is:
Rated voltage (line voltage): 380V, 50Hz;
Operating voltage range (phase voltage): 154～297V, 50Hz;
The every phase of rated current: 100A/;
Residue operating current: 200mA ± 50;
Residue non-operating current: 150mA;
Earth leakage protective operate time :≤100ms;
Carrying out the combined floodgate condition before powering on detects: when the phase ground short circuit appears in output, when perhaps importing phenomenons such as overvoltage/undervoltage occur, do not close a floodgate cycle detection.
Overvoltage protection voltage (phase voltage): 297V, 275V, the 253V third gear is adjustable;
Operate time: 2～10s;
Strong overcurrent/short circuit current protection: 2In;
Operate time :≤(30～100mS);
The self-healing requirement
Automatic reclosing number of times: No. 3 reclosings (number of times can be set) after the earth leakage protective;
The automatic reclosing time: 30 seconds/30 minutes/1 hour (can be set blanking time);
Generally speaking, line fault tripping operation back reclosing is fast more, and effect is good more.The minimum time interval that reclosing allows (circuit breaker trip is to the closed once more time of contact of breaker) receives the breaker operator mechanical action time, the arc extinguishing that opens circuit deionizes the time and the restriction of fault point air deionization time, is generally 0.15～0.5 second.
Consider communication system power characteristics of power supply, trip protection when system detects leakage current and is above standard is delayed time and is carried out the reclosing first time after 30 seconds; If unsuccessful reclosing (still earth leakage protective) is then delayed time and was carried out the reclosing second time in 30 minutes for the first time; If unsuccessful reclosing then delay time and carried out reclosing for the third time in 1 hour for the second time; Still fail if close a floodgate for the third time then the reclosing action is no longer carried out in system's locking.If once close a floodgate successfully arbitrarily, then next fault is again from counting for the first time.The electric leakage indicator light was long bright during reclosing after the earth leakage protective was delayed, and buzzer continues short ring; Electric leakage indicator light flicker after the electric leakage self-locking has only the leak current fault of eliminating this moment and restarts system's (turn off power supply, after waiting a moment opening power) again, could close a floodgate once more.
Single-phase, the two-phase of the utility model input power supply, three-phase can be compatible, and the scope of application is wide; And have the automatic reclosing function, can improve O&M efficient, reduce maintenance cost, low in energy consumption, energy-conserving and environment-protective.The main switch of base station power protector adopts energy-saving type pulse ac contactor, it only adhesive with discharge the moment consumed power, and when keeping and break off consumed power hardly, than traditional A.C. contactor economize on electricity 99%.The utility model can be protected and automatic reclosing according to the electricity consumption situation through intelligent system controlled by computer automatically; Can also the multiple electric fault of using of online complete detection, the historical failure inquiry can also be carried out, and type and the number of times that breaks down can be inquired about.In addition, the utility model can also carry out numerical diagnostic, and early warning is accurate, reports to the police, protects faster, more accurate.
The utility model is the apparatus for protecting power supply that aims at mobile base station or the system development of outdoor active equipment dynamic, have automatic reclosing, lightning protection, earth leakage protective, short circuit/overcurrent protection, overvoltage/under-voltage protection, zero line break off protection, power on before functions such as the detection of combined floodgate condition, fault information reporting; Realize the automatic trip when breaking down of supplying power, stop that after fault disappeared, automatic closing was given power devices to power devices; Have intelligence interface, but the electric power thus supplied of remote supervisory and control(ling) equipment; Need not the staff and close a floodgate to on-site manual, is the ideal source protective device of unattended operation equipment such as mobile base station, RRU, repeater.The utility model can be widely used in earth leakage protective is required high; The field that needs automatic closing after the protection is like unattended base stations such as telecommunications, Netcom's PHS base station, satellite earth receiving station, microwave repeater station, environment friendly system air monitoring station, meteorological telemetry station, energy conduit telemetry stations.
Here description of the utility model and application is illustrative, is not to want the scope of the utility model is limited in the above-described embodiments.Here the distortion of the embodiment that is disclosed and change are possible, and the replacement of embodiment is known with the various parts of equivalence for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation of spirit that does not break away from the utility model or substantive characteristics, and the utility model can be with other forms, structure, layout, ratio, and realize with other elements, material and parts.
Claims (7)
1. communication system automatic reclosing power supply protector is characterized in that: said protector comprises in order to the detecting unit that detects ac supply signal with in order to the processor controls according to testing result control disconnection/combined floodgate; Said detecting unit links to each other with AC power, comprises voltage transformer, current transformer and the electricity leakage sensor of parallel connection; Said processor controls links to each other with said voltage transformer, current transformer and electricity leakage sensor respectively.
2. communication system automatic reclosing power supply protector according to claim 1 is characterized in that: said protector also comprises the accessory power supply in order to auxiliary power supply that links to each other with AC power, and said accessory power supply links to each other with said processor controls.
3. communication system automatic reclosing power supply protector according to claim 1 is characterized in that: said protector also comprises the relay that links to each other with said processor controls.
4. communication system automatic reclosing power supply protector according to claim 1; It is characterized in that: said protector is provided with external interface, and said external interface comprises in order to the three-phase input end of incoming transport power supply, in order to the three-phase output end of output AC electricity, in order to the indication port of display working condition, in order to what the protector operating state was set port, COM1 in order to communicate by letter with remote equipment is set.
5. communication system automatic reclosing power supply protector according to claim 4 is characterized in that: said protector links to each other with the operating state display of outside through the indication port.
6. communication system automatic reclosing power supply protector according to claim 4 is characterized in that: said protector links to each other with the operating state controller of outside through port is set.
7. communication system automatic reclosing power supply protector according to claim 4 is characterized in that: said protector links to each other with the watch-dog of outside through COM1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202563949U CN202153632U (en) | 2011-07-20 | 2011-07-20 | Automatic reclosing power supply protector of communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202563949U CN202153632U (en) | 2011-07-20 | 2011-07-20 | Automatic reclosing power supply protector of communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202153632U true CN202153632U (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202563949U Expired - Fee Related CN202153632U (en) | 2011-07-20 | 2011-07-20 | Automatic reclosing power supply protector of communication system |
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| Country | Link |
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| CN (1) | CN202153632U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159873A (en) * | 2015-03-10 | 2016-11-23 | 江苏苏益电器股份有限公司 | A kind of condition for validity evaluator of residual current circuit breaker automatic reclosing |
| CN107887882A (en) * | 2017-11-14 | 2018-04-06 | 盐田国际集装箱码头有限公司 | A kind of high pressure powers off automatic recovery device |
-
2011
- 2011-07-20 CN CN2011202563949U patent/CN202153632U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159873A (en) * | 2015-03-10 | 2016-11-23 | 江苏苏益电器股份有限公司 | A kind of condition for validity evaluator of residual current circuit breaker automatic reclosing |
| CN107887882A (en) * | 2017-11-14 | 2018-04-06 | 盐田国际集装箱码头有限公司 | A kind of high pressure powers off automatic recovery device |
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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: 20120229 Termination date: 20190720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |