CN203932700U - A kind of High-Voltage Electrical Appliances control cubicle state indicating device - Google Patents
A kind of High-Voltage Electrical Appliances control cubicle state indicating device Download PDFInfo
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- CN203932700U CN203932700U CN201420332765.0U CN201420332765U CN203932700U CN 203932700 U CN203932700 U CN 203932700U CN 201420332765 U CN201420332765 U CN 201420332765U CN 203932700 U CN203932700 U CN 203932700U
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Abstract
The utility model relates to a kind of High-Voltage Electrical Appliances control cubicle state indicating device, comprise microprocessor, the input of described microprocessor connects warm and humid control unit, telecommunication circuit, switching value signal connector and three-phase power-supply circuit, described switching value signal connector output connecting analog indicating member, described three-phase power-supply circuit output connects electrification in high voltage indicating circuit, simulation indicating member and electrification in high voltage indicating circuit directly obtain index signal from switching value signal connector, avoid time delay, be not also subject to the impact of microprocessor work state.Simulation indicating member and electrification in high voltage indicating circuit directly obtain index signal from switching value signal connector, avoid time delay, are not also subject to the impact of microprocessor work state.
Description
Technical field
The utility model relates to a kind of state indicating device, particularly a kind of state indicating device for High-Voltage Electrical Appliances control cubicle.
Background technology
According to the requirement of State Grid's industry " five is anti-", on market, occurred that charged, the switch tool position of all kinds of High-Voltage Electrical Appliances control cubicles indicated and safety interlock system (equipment).These equipment are multi-functional, the automation equipment of dynamic analog indication, collection primary circuit simulation drawing, circuit breaker position, on off state, grounding switch position, spring energy-storage state, electrification in high voltage indication, the multiple functions such as electrification in high voltage locking and digital display temperature moisture measurement value and control are in one, and provide temperature, humidity etc. show and control function, RS485 communication interface is provided, also can coordinate with associative operation control loop and all kinds of anti-misoperation electromagnetic lock, realize the misoperation of forced blocking switch cubicle operating handle and protective door, have and prevent charged minute, close earthed switch (disconnecting link), prevent mistakenly entering charged chamber, improve the safe related function performance of electrical switchgear, there are three anti-functions, and coordinate the electrification in high voltage transducer of relevant voltage grade, charged indication applicable to indoor all kinds of high-tension apparatuses, live locking state " LOCK " when red of high-tension apparatus for example, quiescing, unlocking condition " UNLOCK " green light, allows operation.
But, existing High-Voltage Electrical Appliances control cubicle state indicating device, conventionally be all the signal that the microprocessor basis in this device receives, again to indicating circuit output index signal, there is time delay with virtual condition in the indication of indicating circuit like this, and when microprocessor breaks down or crash, the work of indicating circuit also can be affected.
Utility model content
The purpose of this utility model is to provide a kind of for High-Voltage Electrical Appliances control cubicle state indicating device, simulation indicating member and electrification in high voltage indicating circuit directly obtain index signal from switching value signal connector, avoid time delay, be not also subject to the impact of microprocessor work state.
For solving the problems of the technologies described above, the utility model provides a kind of state indicating device for High-Voltage Electrical Appliances control cubicle, comprise microprocessor, the input of described microprocessor connects warm and humid control unit, telecommunication circuit, switching value signal connector and three-phase power-supply circuit, described switching value signal connector output connecting analog indicating member, described three-phase power-supply circuit output connects electrification in high voltage indicating circuit, simulation indicating member and electrification in high voltage indicating circuit directly obtain index signal from switching value signal connector, avoid time delay, be not subject to the impact of microprocessor work state yet.
Wherein, described simulation indicating member comprises circuit-breaker status indicating circuit, spring energy-storage indicating circuit, handcart position indicating circuit and earthing switch blade position indicating circuit, and each indicating circuit is indicated respectively various states.
Wherein, described three-phase power-supply circuit comprises three power taking unit, the first comparator and the second comparing unit, the output of described power taking unit connects the reverse input end of the first comparator through resistance R 1, described the first comparator positive input connects the first reference signal through resistance R 2, described the first comparator output terminal connects the reverse input end of the second comparator through resistance R 3, the second comparator positive input connects the second reference signal through resistance R 4, the output of described the second comparator is the output of three-phase power-supply circuit, the output of power taking unit is relatively obtained to index signal through two-stage, improved pointing accuracy.
Wherein, described power taking unit comprises rectifier and optocoupler, described rectifier input connects to exchange to be held, the positive pole of described rectifier connects the anode of optocoupler, and the negative pole of described rectifier connects the negative electrode of optocoupler, and the collector electrode of described optocoupler connects power Vcc through resistance R 5, the transmitting of described optocoupler is the output of power taking unit very, by rectifier, convert AC signal to direct current signal, and isolate by optocoupler, improve antijamming capability.
Wherein, described power taking unit also comprises the first filter and the second filter, and described the first filter is arranged on rectifier input, and described the second filter is arranged on rectifier output end, reduces noise jamming, improves precision.
Wherein, described rectifier input piezo-resistance R in parallel
l, realize overvoltage protection; Described rectifier output end parallel voltage-stabilizing diode D
w, restriction rectifier output voltage amplitude.
Wherein, described three-phase power-supply circuit also comprises the 3rd filter, and described the 3rd filter connects the output of power taking unit, filtering clutter signal.
The utility model compared with the existing technology has the following advantages and effect: simulation indicating member and electrification in high voltage indicating circuit directly obtain index signal from switching value signal connector, avoid time delay, are not also subject to the impact of microprocessor work state.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of state indicating device for High-Voltage Electrical Appliances control cubicle of the utility model.
Fig. 2 is the circuit diagram of three-phase power-supply circuit in Fig. 1.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, following examples are to explanation of the present utility model and the utility model is not limited to following examples.
As shown in Figure 1, the High-Voltage Electrical Appliances control cubicle state indicating device that the utility model provides, comprise microprocessor 10, the input of microprocessor 10 connects warm and humid control unit 30, telecommunication circuit 40, switching value signal connector 20 and three-phase power-supply circuit 50, microprocessor 10 is high speed embedded type CPU, has the advantages such as precision is high, antijamming capability strong, data acquisition fast operation.Switching value signal connector 20 output connecting analog indicating members 35, three-phase power-supply circuit 50 outputs connect electrification in high voltage indicating circuit 51, simulation indicating member 35 and electrification in high voltage indicating circuit 51 directly obtain index signal from switching value signal connector 20, avoid indicating time delay, be not subject to the impact of microprocessor work state yet, improved pointing accuracy, and simulated indicating member 35 for execute-in-place design, clear display, image, directly perceived.In addition, in electrification in high voltage indicating circuit 51, adopt high brightness LED as indicator light, long service life, guarantee the stable of operation, electrification in high voltage locking can prevent between mistakenly entering into charged and misoperation occurs, under the abnormal conditions of system generation single-phase earthing or phase shortage, guarantee reliable locking, there is high fail safe.Simulation indicating member 35 generally comprises circuit-breaker status indicating circuit 31, spring energy-storage indicating circuit 32, handcart position indicating circuit 33 and earthing switch blade position indicating circuit 34.
As shown in Figure 2, three-phase power-supply circuit 50 comprises the every phase power taking from three-phase alternating current respectively of three power taking unit 52, the first comparator 53 and 54, three power taking unit 52 of the second comparing unit.The output of power taking unit 52 connects the reverse input end of the first comparator 53 through resistance R 1, the first comparator 53 positive inputs connect the first reference signal Vr1 through resistance R 2, the first comparator 53 outputs connect the reverse input end of the second comparator 54 through resistance R 3, the second comparator 54 positive inputs connect the second reference signal Vr2 through resistance R 4, the output of the second comparator 54 is the output of three-phase power-supply circuit 50, the output of power taking unit 52 is relatively obtained to index signal through two-stage, improved pointing accuracy.For filtering clutter signal, three-phase power-supply circuit 50 is provided with the 3rd filter 55 that is connected to 52 outputs of power taking unit.
Each power taking unit 52 comprises rectifier 521 and optocoupler 522, the advantages such as rectifier 521 inputs receive the sampled signal of electrification in high voltage transducer (not shown)s, and supporting electrification in high voltage transducer has that creep distance is large, mechanical strength is high, resistance to electric arc ability strong, high impact-resistant, high chemical defence and thermal endurance, fabulous dimensional stability, partial discharge are little.The output cathode of rectifier 521 connects the anode of optocoupler 522, and the output negative pole of described rectifier 521 connects the negative electrode of optocoupler 522, and the collector electrode of described optocoupler 522 connects power Vcc through resistance R 5, and the transmitting of described optocoupler 522 is the output of power taking unit 52 very.By rectifier 521, convert AC signal to direct current signal, and isolate by optocoupler, improve antijamming capability.Power taking unit 52 also comprises that the first filter 523 and the second filter 524, the first filters 523 are arranged on rectifier 521 inputs, and the second filter 524 is arranged on rectifier 521 outputs.Rectifier 521 inputs piezo-resistance R in parallel
l, described rectifier 521 output parallel voltage-stabilizing diode D
w, reduce noise jamming, improve precision.
In addition, it should be noted that, the specific embodiment described in this specification, the shape of its parts and components, institute's title of being named etc. can be different.All equivalence or simple change of doing according to described structure, feature and the principle of the utility model patent design, are included in the protection range of the utility model patent.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, all should belong to protection range of the present utility model.
Claims (7)
1. a High-Voltage Electrical Appliances control cubicle state indicating device, comprise microprocessor (10), the input of described microprocessor (10) connects warm and humid control unit (30), telecommunication circuit (40), switching value signal connector (20) and three-phase power-supply circuit (50), it is characterized in that, described switching value signal connector (20) output connecting analog indicating member (35), described three-phase power-supply circuit (50) output connects electrification in high voltage indicating circuit (51).
2. High-Voltage Electrical Appliances control cubicle state indicating device according to claim 1, it is characterized in that, described simulation indicating member (35) comprises circuit-breaker status indicating circuit (31), spring energy-storage indicating circuit (32), handcart position indicating circuit (33) and earthing switch blade position indicating circuit (34).
3. High-Voltage Electrical Appliances control cubicle state indicating device according to claim 1, it is characterized in that, described three-phase power-supply circuit (50) comprises three power taking unit (52), the first comparator (53) and the second comparing unit (54), the output of described power taking unit (52) connects the reverse input end of the first comparator (53) through resistance (R1), described the first comparator (53) positive input connects the first reference signal (Vr1) through resistance (R2), described the first comparator (53) output connects the reverse input end of the second comparator (54) through resistance (R3), the second comparator (54) positive input connects the second reference signal (Vr2) through resistance (R4), the output of described the second comparator (54) is the output of three-phase power-supply circuit (50).
4. High-Voltage Electrical Appliances control cubicle state indicating device according to claim 3, it is characterized in that, described power taking unit (52) comprises rectifier (521) and optocoupler (522), described rectifier (521) input connects to exchange to be held, the positive pole of described rectifier (521) connects the anode of optocoupler (522), the negative pole of described rectifier (521) connects the negative electrode of optocoupler (522), the collector electrode of described optocoupler (522) connects power supply (Vcc) through resistance (R5), and the transmitting of described optocoupler (522) is the output of power taking unit (52) very.
5. High-Voltage Electrical Appliances control cubicle state indicating device according to claim 4, it is characterized in that, described power taking unit (52) also comprises the first filter (523) and the second filter (524), described the first filter (523) is arranged on rectifier (521) input, and described the second filter (524) is arranged on rectifier (521) output.
6. High-Voltage Electrical Appliances control cubicle state indicating device according to claim 5, is characterized in that, described rectifier (521) input piezo-resistance (R in parallel
l), described rectifier (521) output parallel voltage-stabilizing diode (D
w).
7. High-Voltage Electrical Appliances control cubicle state indicating device according to claim 3, it is characterized in that, described three-phase power-supply circuit (50) also comprises the 3rd filter (55), and described the 3rd filter (55) connects power taking unit (52) output.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420332765.0U CN203932700U (en) | 2014-06-20 | 2014-06-20 | A kind of High-Voltage Electrical Appliances control cubicle state indicating device |
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| CN201420332765.0U CN203932700U (en) | 2014-06-20 | 2014-06-20 | A kind of High-Voltage Electrical Appliances control cubicle state indicating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958649A (en) * | 2016-06-16 | 2016-09-21 | 江苏电科电气设备有限公司 | Intelligent five-prevention closedown system of medium-voltage loop network switchgear |
-
2014
- 2014-06-20 CN CN201420332765.0U patent/CN203932700U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958649A (en) * | 2016-06-16 | 2016-09-21 | 江苏电科电气设备有限公司 | Intelligent five-prevention closedown system of medium-voltage loop network switchgear |
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