CN104394253A - Transformer substation telephone channel testing device - Google Patents
Transformer substation telephone channel testing device Download PDFInfo
- Publication number
- CN104394253A CN104394253A CN201410611725.4A CN201410611725A CN104394253A CN 104394253 A CN104394253 A CN 104394253A CN 201410611725 A CN201410611725 A CN 201410611725A CN 104394253 A CN104394253 A CN 104394253A
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- circuit
- relay
- power supply
- telephone channel
- bridge rectifier
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Abstract
The invention relates to a transformer substation telephone channel testing device comprising: a monostable circuit, a gate circuit, a voice circuit, a power supply for supplying power and a relay for controlling on and off of a telephone channel. The monostable circuit includes two monostable multivibrators connected in series, a counter and an operation amplifier are connected in series at the side of the two monostable multivibrators, and the operation amplifier is also connected to said monostable multivibrators. The gate circuit includes a bridge rectifier circuit and an optoelectronic coupling circuit connected in series, wherein another bridge rectifier circuit is connected at the side of the optoelectronic coupling circuit, and the bridge rectifier circuit is connected to the relay. The voice circuit is further connected at one side where the relay is connected to the power supply, and two RJ11 telephone ports are connected at the other side. The power supply is further connected to said relay, said monostable multivibrators and said counter. According to the application, the defect that a failure of telephone scheduling cannot be found in time is corrected, communication workers can be arranged in time to handle the failure, the reliability of grid scheduling is effectively improved, and a foundation is laid for great grid services.
Description
Technical field
The present invention relates to a kind of in order to test the whether unobstructed transformer station's telephone channel testing apparatus of far-end telephone channel on duty.
Background technology
Transformer station had people on duty in the past, and basic employing Communication Personnel's every morning all engages one time in control room transformer station's number, if obstructed with regard to arranging attendant to keep in repair in time, guaranteed that dispatching telephone is in upstate at any time.The 35kV that current electrical network is administrative and above transformer station belong to unattended substation substantially, transformer station is once need the operation such as circuit breaker, isolating switch, need dimension behaviour team personnel to arrive substation field to operate, operational order all adopts transformer station's dispatching telephone to assign, and dispatching telephone has real-time recording function.Because present transformer station belongs to unattended mostly, whether dispatching telephone is normal cannot grasp in real time concerning Communication Personnel.For guaranteeing that phone can be used at any time, must test every day.
Summary of the invention
The object of the invention is to propose a kind of whether normally doing telephone channel test accurately, guarantee transformer station's telephone channel testing apparatus that dispatching telephone passage is good for use.
The object of the present invention is achieved like this: transformer station's telephone channel testing apparatus, and it comprises monostable circuit, gate circuit, sound circuit, and the relay of the power supply of power supply and control telephone channel break-make.Described monostable circuit comprises the one-shot multivibrator of two series connection, and at two series connection of one-shot multivibrator side counter, operational amplifiers, operational amplifier is also connected with aforementioned one-shot multivibrator.Gate circuit comprises bridge rectifier and the photoelectric coupling circuit of series connection, connects another bridge rectifier in photoelectric coupling circuit side, and this bridge rectifier is connected with relay.Relay and power supply connection side are also connected with sound circuit, and another side is connected with RJ11 telephony interface.Described power supply is also connected with aforementioned relay, one-shot multivibrator sum counter.
Owing to implementing technique scheme, the application's convenient operating maintenance, the equipment that do not affect normally runs.Once for practical application, non-Timeliness coverage defect after can effectively solving dispatching telephone fault, arranges Communication Personnel to keep in repair in time, effectively raises the reliability of dispatching of power netwoks, for electrical network good service lays the foundation.Also improve grid equipment safety operation level simultaneously, ensure that power network safety operation.
Accompanying drawing illustrates: concrete structure of the present invention is provided by following drawings and Examples:
Tu1Shi transformer station telephone channel testing apparatus circuit diagram.
Embodiment:
The present invention by the restriction of following embodiment, can not determine concrete execution mode according to technical scheme of the present invention and actual conditions.
Embodiment: as shown in Figure 1, transformer station's telephone channel testing apparatus is installed in phone front end to be measured, and it comprises monostable circuit, gate circuit, sound circuit, and the relay of the power supply of power supply and control telephone channel break-make.Described monostable circuit comprises the one-shot multivibrator of two series connection, and at two series connection of one-shot multivibrator side counter, operational amplifiers, operational amplifier is also connected with aforementioned one-shot multivibrator.Gate circuit comprises bridge rectifier and the photoelectric coupling circuit of series connection, connects another bridge rectifier in photoelectric coupling circuit side, and this bridge rectifier is connected with relay.Relay and power supply connection side are also connected with sound circuit, and another side is connected with RJ11 telephony interface.Described power supply is also connected with aforementioned relay, one-shot multivibrator sum counter.
Counter, be connected between operational amplifier with telephone channel toggle switch.
During use, by dialing the telephone number of telephone channel to be measured, counter enters ring response times counting, and monostable trigger-action circuit stops exporting pulse, relay closes, be communicated with phone to be measured, when after call response to be measured, ortho states replied by monostable trigger-action circuit, exports pulse, sound circuit works, and represents that telephone channel is unimpeded.
Above technical characteristic constitutes most preferred embodiment of the present invention, and it has stronger adaptability and best implementation result, can increase and decrease inessential technical characteristic according to actual needs, meet the needs of different situations.
Claims (2)
1. transformer station's telephone channel testing apparatus, it comprises monostable circuit, gate circuit, sound circuit, and the relay of the power supply of power supply and control telephone channel break-make, described monostable circuit comprises the one-shot multivibrator of two series connection, at two one-shot multivibrator side series connection counters, operational amplifier, operational amplifier is also connected with aforementioned one-shot multivibrator, gate circuit comprises bridge rectifier and the photoelectric coupling circuit of series connection, another bridge rectifier is connected in photoelectric coupling circuit side, this bridge rectifier is connected with relay, electrical equipment and power supply connection side are also connected with sound circuit, another side is connected with RJ11 telephony interface, described power supply also with aforementioned relay, one-shot multivibrator sum counter is connected.
2. transformer station as claimed in claim 1 telephone channel testing apparatus, is characterized in that: counter, be connected between operational amplifier with telephone channel toggle switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410611725.4A CN104394253A (en) | 2014-11-05 | 2014-11-05 | Transformer substation telephone channel testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410611725.4A CN104394253A (en) | 2014-11-05 | 2014-11-05 | Transformer substation telephone channel testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104394253A true CN104394253A (en) | 2015-03-04 |
Family
ID=52612088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410611725.4A Pending CN104394253A (en) | 2014-11-05 | 2014-11-05 | Transformer substation telephone channel testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104394253A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1337116A (en) * | 1999-01-20 | 2002-02-20 | 奥克德内有限公司 | Testing of telephone lines |
| US7224793B1 (en) * | 1998-09-17 | 2007-05-29 | Philips Electronics North America Corp. | Communication set with detection of set function and line condition |
| CN204190818U (en) * | 2014-11-05 | 2015-03-04 | 国家电网公司 | Transformer station's telephone channel testing apparatus |
-
2014
- 2014-11-05 CN CN201410611725.4A patent/CN104394253A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7224793B1 (en) * | 1998-09-17 | 2007-05-29 | Philips Electronics North America Corp. | Communication set with detection of set function and line condition |
| CN1337116A (en) * | 1999-01-20 | 2002-02-20 | 奥克德内有限公司 | Testing of telephone lines |
| CN204190818U (en) * | 2014-11-05 | 2015-03-04 | 国家电网公司 | Transformer station's telephone channel testing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |