CN207354054U - The electric power system of online power equipment monitoring system - Google Patents
The electric power system of online power equipment monitoring system Download PDFInfo
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- CN207354054U CN207354054U CN201721530675.2U CN201721530675U CN207354054U CN 207354054 U CN207354054 U CN 207354054U CN 201721530675 U CN201721530675 U CN 201721530675U CN 207354054 U CN207354054 U CN 207354054U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 26
- 230000005611 electricity Effects 0.000 claims abstract description 12
- 230000006698 induction Effects 0.000 claims abstract description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 19
- 229910052710 silicon Inorganic materials 0.000 claims description 19
- 239000010703 silicon Substances 0.000 claims description 19
- 239000003381 stabilizer Substances 0.000 claims description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 230000001052 transient effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 101100365087 Arabidopsis thaliana SCRA gene Proteins 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 101150105073 SCR1 gene Proteins 0.000 description 1
- 101100134054 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) NTG1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
A kind of electric power system of online power equipment monitoring system provided by the utility model, including：Taking can mutual inductor CT1, rectification circuit Z1, overvoltage crowbar, the first power circuit, second source circuit, stand-by power supply and process circuit；It is described take can the both ends of induction coil of mutual inductor CT1 be connected respectively with the positive input terminal and negative input end of rectification circuit Z1,The positive output end of rectification circuit Z1 is connected with the input terminal of the first power circuit,The negative output terminal ground connection of rectification circuit Z1,The first power circuit output 12V DC electricity,Input terminal of the output terminal of first power circuit also with second source circuit is connected,The second source circuit output 5V direct currents,The input terminal of the stand-by power supply is connected with the output terminal of second source circuit,The output terminal of the stand-by power supply is connected with process circuit point,The stand-by power supply is also communicated to connect with process circuit,The overvoltage crowbar is arranged at the path between rectification circuit and the first power circuit,The control output end of the process circuit is also connected with overvoltage crowbar,Two kinds of stable DCs can be exported.
Description
Technical field
It the utility model is related to a kind of electric power system, more particularly to a kind of power supply system of online power equipment monitoring system
System.
Background technology
With the development that social production is lived, people are higher and higher for the stability requirement of electric system, therefore, in order to
Ensure each stable equipment operation in electric system, it is necessary to the equipment in electric system, such as transmission line of electricity, breaker, absolutely
Edge etc. carries out status data monitoring, and in the prior art, monitoring for power equipment is mainly using online, using various biographies
Sensor monitoring data, are then uploaded to monitoring host computer by microprocessor, come for the detecting system of power equipment in substation
To say, its electricity consumption can also have certain guarantee in stability and diversity, but for more remote place, it is existing
Power supply unit is then poor there are stability, and output is single, it is difficult to meet the needs of modern monitoring system, it is poor to be additionally, since stability,
O＆M worker is needed to overhaul often, so as to additionally increase human cost.
Therefore, in order to solve the above-mentioned technical problem, there is an urgent need for propose a kind of new electric power system.
Utility model content
In view of this, the electric power system of a kind of online power equipment monitoring system provided by the utility model, can be
The direct current of the offer 12V and 5V of line monitoring system, so as to meet the power demands such as modern each sensor of monitoring system, and
And electric power system itself can realize good protection, so that it is guaranteed that effectively improving the steady of itself while electrical equipment is safe
It is qualitative, avoid because extra human cost caused by power maintenance.
A kind of electric power system of online power equipment monitoring system provided by the utility model, including：Taking can mutual inductor
CT1, rectification circuit Z1, overvoltage crowbar, the first power circuit, second source circuit, stand-by power supply and process circuit；
It is described take can mutual inductor CT1 induction coil the both ends positive input terminal and negative input end with rectification circuit Z1 respectively
Connection, the positive output end of rectification circuit Z1 are connected with the input terminal of the first power circuit, the negative output termination of rectification circuit Z1
Ground, the first power circuit output 12V DC electricity, the output terminal of first power circuit are also defeated with second source circuit
Enter end connection, the second source circuit output 5V direct currents, the input terminal of the stand-by power supply is defeated with second source circuit
Outlet connects, and the output terminal of the stand-by power supply is electrically connected with process circuit, the stand-by power supply also with process circuit communication link
Connect, the overvoltage crowbar is arranged at the path between rectification circuit and the first power circuit, the control of the process circuit
Output terminal is also connected with overvoltage crowbar.
Further, first power circuit includes capacitance C1, resistance R4, resistance R5, voltage-stabiliser tube DW1, capacitance C2, three poles
Pipe Q2 and triode Q3；
The collector of the triode Q3 is connected to the positive output end of rectification circuit Z1, and the emitter of triode Q3 is as
The output terminal of one power circuit, the base stage of triode Q3 are grounded by capacitance C2, and the collector of triode Q2 is connected to triode
The collector of Q3, the emitter of triode Q2 are grounded by resistance R5, and the emitter of triode Q2 is also attached to triode Q3's
Collector, the base stage of triode Q2 are connected to the collector of triode Q3 and the positive output end of rectification circuit Z1 by resistance R4
Between points of common connection, the base stage of triode Q2 is also attached to the anode of voltage-stabiliser tube DW1, the plus earth of voltage-stabiliser tube DW1, three
Points of common connection between the collector of pole pipe Q3 and the positive output end of rectification circuit Z1 is grounded by capacitance C1.
Further, the second source circuit is power supply chip LM2596 chips.
Further, the overvoltage crowbar include diode D1, resistance R1, resistance R2, triode Q1, resistance R3, can
Control silicon SCR1, relay J1, triode Q4 and resistance R6；
The anode of the diode D1 is connected to the positive output end of rectification circuit Z1, and the cathode of diode D1 passes through resistance R1
Ground connection, one end of resistance R2 are connected to the cathode of diode D1, and the other end is connected to the base stage of triode Q1, triode Q1's
Emitter is connected to the points of common connection between the anode of diode D1 and the positive output end of rectification circuit Z1, the collection of triode Q1
Electrode is grounded by resistance R3, and the control pole of controllable silicon SCR 1 is connected to the collector of triode Q1, the cathode of controllable silicon SCR 1
The points of common connection being connected between the emitter of triode Q1 and the anode of diode D1, the anode of controllable silicon SCR 1 by after
The normally closed switch J1-K1 ground connection of electric appliance J1, the collector of triode Q4 connect 5V power supplys, and the emitter of triode Q4 passes through resistance
R6 is connected with one end of the coil of relay J1, the other end ground connection of the coil of relay J1, the base stage of triode Q4 and processing
The control output end connection of circuit；
Wherein, diode D1 is Zener diode, and triode Q1 is PNP type triode.
Further, the stand-by power supply includes battery management circuit and lithium battery, and the power supply of the battery management circuit is defeated
Enter end to be connected with the output terminal of the first power circuit, battery management circuit is connected with lithium battery, the electricity of the battery management circuit
Source output terminal is connected to the input terminal of second source circuit, and the battery management circuit is also communicated to connect with process circuit.
Further, the rectification circuit Z1 is the whole bridge rectifier circuit of four diode compositions.
Further, it is described take can mutual inductor CT1 induction coil both ends between be additionally provided with two-way transient state and suppress two poles
Pipe TVS1.
The beneficial effects of the utility model：Can be the offer 12V and 5V of on-line monitoring system by the utility model
Direct current, so as to meet the power demands such as modern each sensor of monitoring system, moreover, electric power system itself can be realized
Good protection, so that it is guaranteed that effectively improving the stability of itself while electrical equipment is safe, avoids because power maintenance institute
The extra human cost brought.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and examples：
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the circuit diagram of the utility model.
Fig. 3 is the control principle drawing of relay.
Embodiment
Further description is made to the utility model below in conjunction with Figure of description, as shown in the figure：
A kind of electric power system of online power equipment monitoring system provided by the utility model, including：Taking can mutual inductor
CT1, rectification circuit Z1, overvoltage crowbar, the first power circuit, second source circuit, stand-by power supply and process circuit；
It is described take can mutual inductor CT1 induction coil the both ends positive input terminal and negative input end with rectification circuit Z1 respectively
Connection, the positive output end of rectification circuit Z1 are connected with the input terminal of the first power circuit, the negative output termination of rectification circuit Z1
Ground, the first power circuit output 12V DC electricity, the output terminal of first power circuit are also defeated with second source circuit
Enter end connection, the second source circuit output 5V direct currents, the input terminal of the stand-by power supply is defeated with second source circuit
Outlet connects, and the output terminal of the stand-by power supply is electrically connected with process circuit, the stand-by power supply also with process circuit communication link
Connect, the overvoltage crowbar is arranged at the path between rectification circuit and the first power circuit, the control of the process circuit
Output terminal is also connected with overvoltage crowbar, wherein, process circuit uses existing microcontroller, such as STM32 series monolithics,
89C51 series monolithics etc., the dimension specification that those skilled in the art pass through selected microcontroller and microcontroller
Circuit between process circuit and a circuit can be achieved to build, not in this to go forth, by the utility model, can be
The direct current of the offer 12V and 5V of line monitoring system, so as to meet the power demands such as modern each sensor of monitoring system, and
And electric power system itself can realize good protection, so that it is guaranteed that effectively improving the steady of itself while electrical equipment is safe
It is qualitative, avoid because extra human cost caused by power maintenance；Wherein, the rectification circuit Z1 forms for four diodes
Whole bridge rectifier circuit.
In the present embodiment, first power circuit includes capacitance C1, resistance R4, resistance R5, voltage-stabiliser tube DW1, capacitance
C2, triode Q2 and triode Q3；
The collector of the triode Q3 is connected to the positive output end of rectification circuit Z1, and the emitter of triode Q3 is as
The output terminal of one power circuit, the base stage of triode Q3 are grounded by capacitance C2, and the collector of triode Q2 is connected to triode
The collector of Q3, the emitter of triode Q2 are grounded by resistance R5, and the emitter of triode Q2 is also attached to triode Q3's
Collector, the base stage of triode Q2 are connected to the collector of triode Q3 and the positive output end of rectification circuit Z1 by resistance R4
Between points of common connection, the base stage of triode Q2 is also attached to the anode of voltage-stabiliser tube DW1, the plus earth of voltage-stabiliser tube DW1, three
Points of common connection between the collector of pole pipe Q3 and the positive output end of rectification circuit Z1 is grounded by capacitance C1；Wherein, capacitance
For filtering out exchange clutter, voltage clamp can be acted in 12V by voltage-stabiliser tube DW1 and resistance R4, fuel oil passes through triode
The conducting output 12V DC electricity of Q3 and Q2.
In the present embodiment, the second source circuit is power supply chip LM2596 chips, and certainly, LM2596 chips also wrap
Peripheral circuit is included, as shown in Fig. 2, wherein, peripheral circuit includes voltage-stabiliser tube DW2, inductance L1 and capacitance C3, it specifically connects
Binding structure is as shown in Fig. 2, pass through said structure, you can exports stable 5V direct currents.
In the present embodiment, the overvoltage crowbar includes diode D1, resistance R1, resistance R2, triode Q1, resistance
R3, controllable silicon SCR 1, relay J1, triode Q4 and resistance R6；
The anode of the diode D1 is connected to the positive output end of rectification circuit Z1, and the cathode of diode D1 passes through resistance R1
Ground connection, one end of resistance R2 are connected to the cathode of diode D1, and the other end is connected to the base stage of triode Q1, triode Q1's
Emitter is connected to the points of common connection between the anode of diode D1 and the positive output end of rectification circuit Z1, the collection of triode Q1
Electrode is grounded by resistance R3, and the control pole of controllable silicon SCR 1 is connected to the collector of triode Q1, the cathode of controllable silicon SCR 1
The points of common connection being connected between the emitter of triode Q1 and the anode of diode D1, the anode of controllable silicon SCR 1 by after
The normally closed switch J1-K1 ground connection of electric appliance J1, the collector of triode Q4 connect 5V power supplys, and the emitter of triode Q4 passes through resistance
R6 is connected with one end of the coil of relay J1, the other end ground connection of the coil of relay J1, the base stage of triode Q4 and processing
The control output end connection of circuit；
Wherein, diode D1 is Zener diode, and triode Q1 is PNP type triode；When the electricity of rectification circuit Z1 outputs
When pressing through high, diode D1 is breakdown, and triode Q1 must be conducted at this time, also, the control pole of controllable silicon SCR 1 obtain it is electric so as to
So that 1 triggering and conducting of controllable silicon SCR, i.e. to follow-up short circuit after the conducting of controllable silicon SCR 1, so as to play good protection
Effect, also, to ensure that controllable silicon SCR 1 has constantly in the case of forward voltage for the trigger characteristic of controllable silicon SCR 1, if
Need to reply, then turned on by processing circuit controls triode Q4, relay J1 obtains electric, its normally closed switch J1-K1 disconnections so that
1 place circuit of controllable silicon SCR disconnects, and controllable silicon SCR 1 is ended, you can replys the work of this electric power system, inputs and control to process circuit
Order processed can be set a 4G module or GPRS modules, pass through above-mentioned knot by remotely realizing at process circuit
Structure, can play a good protective effect electric power system, lift stability, the reliability of whole electric power system.
In the present embodiment, the stand-by power supply includes battery management circuit and lithium battery, the electricity of the battery management circuit
Source input terminal is connected with the output terminal of the first power circuit, and battery management circuit is connected with lithium battery, the battery management circuit
Power output end be connected to the input terminal of second source circuit, the battery management circuit is also communicated to connect with process circuit,
The battery management circuit uses existing battery management chip, such as the MAX1758 chips of MAXIM companies and its periphery
The management of charging and discharging circuit that circuit is formed, and with input detection, over-current over-voltage protection etc., carried out so as to fulfill to lithium battery
Good management, also, when battery management circuit detects no signal power source input, then starting storage battery is powered,
And battery management circuit sends fault-signal to process circuit, process circuit is uploaded by 4G modules and alarmed；Pass through this knot
Structure so that electric power system can have lasting power supply, ensure that monitoring data will not interrupt.
In the present embodiment,.It is described take can mutual inductor CT1 induction coil both ends between be additionally provided with two-way transient state and suppress
Diode TVS1, by this structure, can prevent the impact of the instantaneous large-current of transmission line of electricity, so that and overvoltage crowbar
Form double shielding effect.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those of ordinary skill in the art that, can be to this
The technical solution technical scheme is modified or replaced equivalently of utility model, without departing from the objective and model of technical solutions of the utility model
Enclose, it should all cover among the right of the utility model.
Claims (7)
- A kind of 1. electric power system of online power equipment monitoring system, it is characterised in that：Including：Taking can mutual inductor CT1, rectified current Road Z1, overvoltage crowbar, the first power circuit, second source circuit, stand-by power supply and process circuit；It is described take can positive input terminal and negative input end of the both ends respectively with rectification circuit Z1 of induction coil of mutual inductor CT1 connect Connect, the positive output end of rectification circuit Z1 is connected with the input terminal of the first power circuit, the negative output terminal ground connection of rectification circuit Z1, institute State the first power circuit output 12V DC electricity, the input terminal of the output terminal of first power circuit also with second source circuit Connection, the second source circuit output 5V direct currents, the input terminal of the stand-by power supply and the output terminal of second source circuit Connection, the output terminal of the stand-by power supply are electrically connected with process circuit, and the stand-by power supply is also communicated to connect with process circuit, institute State the path that overvoltage crowbar is arranged between rectification circuit and the first power circuit, the control output end of the process circuit Also it is connected with overvoltage crowbar.
- 2. the electric power system of online power equipment monitoring system according to claim 1, it is characterised in that：First power supply Circuit includes capacitance C1, resistance R4, resistance R5, voltage-stabiliser tube DW1, capacitance C2, triode Q2 and triode Q3；The collector of the triode Q3 is connected to the positive output end of rectification circuit Z1, and the emitter of triode Q3 is as the first electricity The output terminal of source circuit, the base stage of triode Q3 are grounded by capacitance C2, and the collector of triode Q2 is connected to triode Q3's Collector, the emitter of triode Q2 are grounded by resistance R5, and the emitter of triode Q2 is also attached to the current collection of triode Q3 Pole, the base stage of triode Q2 are connected to by resistance R4 between the collector of triode Q3 and the positive output end of rectification circuit Z1 Points of common connection, the base stage of triode Q2 are also attached to the anode of voltage-stabiliser tube DW1, the plus earth of voltage-stabiliser tube DW1, triode Q3 Collector and rectification circuit Z1 positive output end between points of common connection be grounded by capacitance C1.
- 3. the electric power system of online power equipment monitoring system according to claim 1, it is characterised in that：The second source Circuit is power supply chip LM2596 chips.
- 4. the electric power system of online power equipment monitoring system according to claim 1, it is characterised in that：The overvoltage protection Circuit include diode D1, resistance R1, resistance R2, triode Q1, resistance R3, controllable silicon SCR 1, relay J1, triode Q4 with And resistance R6；The anode of the diode D1 is connected to the positive output end of rectification circuit Z1, and the cathode of diode D1 is connect by resistance R1 Ground, one end of resistance R2 are connected to the cathode of diode D1, and the other end is connected to the base stage of triode Q1, the transmitting of triode Q1 Pole is connected to the points of common connection between the anode of diode D1 and the positive output end of rectification circuit Z1, the collector of triode Q1 It is grounded by resistance R3, the control pole of controllable silicon SCR 1 is connected to the collector of triode Q1, the cathode connection of controllable silicon SCR 1 Points of common connection between the emitter of triode Q1 and the anode of diode D1, the anode of controllable silicon SCR 1 pass through relay The normally closed switch J1-K1 ground connection of J1, the collector of triode Q4 connect 5V power supplys, the emitter of triode Q4 by resistance R6 with after One end connection of the coil of electric appliance J1, the other end ground connection of the coil of relay J1, the base stage of triode Q4 and process circuit Control output end connects；Wherein, diode D1 is Zener diode, and triode Q1 is PNP type triode.
- 5. the electric power system of online power equipment monitoring system according to claim 4, it is characterised in that：The stand-by power supply Including battery management circuit and lithium battery, the output terminal of the power input of the battery management circuit and the first power circuit connects Connect, battery management circuit is connected with lithium battery, and the power output end of the battery management circuit is connected to second source circuit Input terminal, the battery management circuit are also communicated to connect with process circuit.
- 6. the electric power system of online power equipment monitoring system according to claim 1, it is characterised in that：The rectification circuit Z1 is the whole bridge rectifier circuit of four diode compositions.
- 7. the electric power system of online power equipment monitoring system according to claim 1, it is characterised in that：Described take can mutual inductance Two-way Transient Suppression Diode TVS1 is additionally provided between the both ends of the induction coil of device CT1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721530675.2U CN207354054U (en) | 2017-11-15 | 2017-11-15 | The electric power system of online power equipment monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721530675.2U CN207354054U (en) | 2017-11-15 | 2017-11-15 | The electric power system of online power equipment monitoring system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736567A (en) * | 2018-06-29 | 2018-11-02 | 国家电网有限公司 | Power supply system for electric power monitoring |
| CN110672909A (en) * | 2019-10-31 | 2020-01-10 | 国家电网有限公司 | OPGW (optical fiber composite overhead ground wire) line live indication power-off prompting system based on induction power taking |
| CN110707764A (en) * | 2019-10-31 | 2020-01-17 | 国家电网有限公司 | Induction power taking system for OPGW monitoring |
| CN112865027A (en) * | 2020-12-31 | 2021-05-28 | 国家电网有限公司 | Direct current power supply system for power monitoring |
| CN113452153A (en) * | 2021-07-28 | 2021-09-28 | 国家电网有限公司 | Online energy-taking and power-supplying system for ground wire of overhead transmission line |
-
2017
- 2017-11-15 CN CN201721530675.2U patent/CN207354054U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736567A (en) * | 2018-06-29 | 2018-11-02 | 国家电网有限公司 | Power supply system for electric power monitoring |
| CN108736567B (en) * | 2018-06-29 | 2024-02-09 | 国家电网有限公司 | Power supply system for power monitoring |
| CN110672909A (en) * | 2019-10-31 | 2020-01-10 | 国家电网有限公司 | OPGW (optical fiber composite overhead ground wire) line live indication power-off prompting system based on induction power taking |
| CN110707764A (en) * | 2019-10-31 | 2020-01-17 | 国家电网有限公司 | Induction power taking system for OPGW monitoring |
| CN110707764B (en) * | 2019-10-31 | 2021-12-07 | 国家电网有限公司 | Induction power taking system for OPGW monitoring |
| CN110672909B (en) * | 2019-10-31 | 2022-04-12 | 国家电网有限公司 | OPGW (optical fiber composite overhead ground wire) line live indication power-off prompting system based on induction power taking |
| CN112865027A (en) * | 2020-12-31 | 2021-05-28 | 国家电网有限公司 | Direct current power supply system for power monitoring |
| CN112865027B (en) * | 2020-12-31 | 2023-02-24 | 国家电网有限公司 | Direct current power supply system for power monitoring |
| CN113452153A (en) * | 2021-07-28 | 2021-09-28 | 国家电网有限公司 | Online energy-taking and power-supplying system for ground wire of overhead transmission line |
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