CN205786876U - A kind of general phase-difference type switch cabinet phasing device - Google Patents
A kind of general phase-difference type switch cabinet phasing device Download PDFInfo
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- CN205786876U CN205786876U CN201620698644.7U CN201620698644U CN205786876U CN 205786876 U CN205786876 U CN 205786876U CN 201620698644 U CN201620698644 U CN 201620698644U CN 205786876 U CN205786876 U CN 205786876U
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Abstract
This utility model relates to a kind of general phase-difference type switch cabinet phasing device, is mainly made up of signal processing circuit, microprocessor, battery, on-off circuit, power supply indicator, two charged display lamps of circuit, homophase display lamp and out-phase display lamp.Battery provides electric power for phase checking device, and the charged display lamp of circuit is used for showing that tested phase is the most charged；Signal processing circuit, is made up of two identical signal acquiring systems, and each signal acquiring system is in series by voltage nuclear phase terminal, amplitude limiter circuit, comparator.Two signal acquiring systems gather the phase contrast of two tested phases respectively and deliver to microprocessor and judge: if two tested phases are homophase, then homophase display lamp is bright；If two tested phases are out-phase, then out-phase display lamp is bright.This high-tension switch cabinet phase checking device, nuclear phase precision, efficiency are high；Nuclear phase result is not affected by high pressure belt point display model and capacitance difference；Compatible strong, the nuclear phase between different manufacturers, different electric capacity can be realized；And volume is little, it is convenient for carrying.
Description
Technical field
This utility model relates to nuclear phase technology, a kind of high-tension switch cabinet nuclear phase assay device.
Background technology
In the operation of actual electric power, newly-built, renovating and enlarging after electric substation and transmission line of electricity, and at line maintenance
Complete and before user's power transmission, it is necessary to carry out three-phase circuit nuclear phase test, to guarantee that transmission line of electricity phase sequence and user's three-phase are born
Carry required phase sequence consistent.Current nuclear phase test, is essentially confined to traditional voltage differential, and this kind of test method, two
In the case of bar line voltage distribution is essentially identical, can accurately check out phase place, i.e. minimum with phase time voltage difference, typically recognize
For close to null value, and during out-phase, voltage difference is bigger.But, when two lines road voltage difference, even if with phase time voltage difference
The biggest, therefore, the method for this voltage differential nuclear phase, it is impossible to judge homophase or out-phase.Especially apply in reality
In, owing to capacitance type sensor capacitance is different, the magnitude of voltage being coupled out can not be fully achieved unanimously.So, use tradition
High-tension switch cabinet nuclear phase is tested by voltage differential, there are the serious problems of easily erroneous judgement.
Summary of the invention
For the shortcoming overcoming the test of voltage differential nuclear phase to exist, the purpose of this utility model is: provide a kind of height to press off
Close new equipment-----the phase-difference type high-tension switch cabinet phase checking device of cabinet nuclear phase test, with the accuracy of guarantee test result, can
By property.
The high-tension switch cabinet phase checking device of the present invention, including: signal processing circuit, microprocessor, battery, on-off circuit,
Power supply indicator, two the charged display lamps of circuit, homophase display lamp, out-phase display lamps.Battery provides electric power for phase checking device, presses
Whether lower Switching Power Supply display lamp display device has electricity, charged display lamp to show that tested phase is the most charged, if charged, lamp is bright, letter
Number tested phase phase contrast of Acquisition Circuit collection two is also delivered to microprocessor and is judged, if two tested phases are homophase, and homophase
Display lamp is bright, if two tested phases are out-phase, out-phase display lamp is bright.
Described signal processing circuit, has two identical signal acquiring systems, and each signal acquiring system is by voltage core
Phase terminal, amplitude limiter circuit, comparator are in series.Two identical signal acquiring systems are gathered by voltage nuclear phase terminal respectively
Two tested phases, voltage nuclear phase terminal contacts with the outfan of tested high-tension line capacitance sensor, is coupled out and has certain phase
Position relation frequency is the voltage signal of power frequency, by the amplitude limiter circuit integrated chip of outsourcing (amplitude limiter circuit be) having certain phase
The voltage waveform signal of position relation takes out, and after delivering to comparator (comparator is the integrated chip of outsourcing) shaping, be simultaneously sent to
Inverter circuit (inverter circuit is outsourcing chip) can obtain the phase contrast of two measured circuits.
Described microprocessor, preferable microprocessor chip be withCortex is 32 8-digit microcontrollers of kernel,
It is applied to Industry Control and needs the field of rich communication interface. and cost just corresponds to 8 traditional 8-digit microcontrollers, adds
Chip has many system-level peripheral functionality, as I/O port, EBI (external bus interface), Timer, UART, SPI, I2C, PWM,
ADC, WatchDog Timer and under-voltage detection, such that it is able to reduce system peripherals component number, save circuit board space and be
System cost.
Using method of the present utility model is:
When carrying out high-tension switch cabinet nuclear phase: first by two electrodes (two that on panel, CH1 and CH2 passage extracts respectively
Line) insert the nuclear phase hole that on different switch cabinet panel, potential indicator (i.e. indicating the device that each phase is the most charged) is corresponding respectively
In, another electrode ground connection.After being plugged line, by ON/OFF shift knob, phasing tester is started working, nuclear phase hole nuclear phase terminal) with
The outfan contact of tested high-tension line capacitance sensor, is coupled out on nuclear phase hole and has certain phase relation (frequency is work
Frequently) voltage signal, when there is electricity first via high-pressure side, the CH1 display lamp below CH1 is bright；When there is electricity the second high-pressure side, tunnel,
Below CH2, CH2 display lamp is bright.Signal processing circuit gathers the phase contrast of CH1 and CH2, is then sent by phase contrast (pulse signal)
It is acquired to microprocessor, phase contrast can be calculated by acquisition pulse width, when two-way high-pressure side indicates with phase time homophase
Lamp is bright, and when two-way high-pressure side out-phase, out-phase display lamp is bright.
The beneficial effects of the utility model are:
1,5V rechargeable type lithium battery is used to be powered, low in energy consumption, longevity of service；
2, volume is little, is convenient for carrying；
3, nuclear phase precision is high, and speed is fast；
4, nuclear phase result is not affected by high pressure belt point display model and capacitance difference；
5, compatible strong, the nuclear phase between different manufacturers, different electric capacity can be realized.
Below in conjunction with the accompanying drawings and embodiment, this utility model is illustrated.
Accompanying drawing explanation
Fig. 1. the schematic block circuit diagram of the present embodiment high-tension switch cabinet phase checking device
Fig. 2. the schematic block circuit diagram of the signal processing circuit of the present embodiment
Fig. 3. the product design front view of the high-tension switch cabinet phase checking device of the present embodiment
Detailed description of the invention
Embodiment one phase-difference type high-tension switch cabinet phase checking device
Fig. 1 is the circuit structure theory diagram of the high-tension switch cabinet phase checking device of the present embodiment.This device is mainly by signal
Process circuit, microprocessor, battery, on-off circuit, power supply indicator, two the charged display lamps of circuit, homophase display lamp, out-phase
Display lamp is constituted.
Signal processing circuit gathers voltage input-terminal A and the phase contrast of voltage input-terminal B, then by phase contrast (arteries and veins
Rush signal) deliver to microprocessor and be acquired, phase contrast can be calculated by acquisition pulse width, when two-way high-pressure side homophase
Time, " homophase " display lamp is bright: when two-way high-pressure side out-phase, " out-phase " display lamp is bright.
The three of standard p-wires in use, are inserted the voltage input-terminal of phasing tester by the device of the present embodiment respectively
A, ground terminal, voltage input-terminal B three jacks in, the other three head of p-wire inserts the band point needing nuclear phase respectively
In the jack of display and the earth.After being plugged line, by shift knob, power supply indicator is bright-and phasing tester starts working, and works as the first via
When there is electricity high-pressure side, the charged display lamp of circuit a is bright；When there is electricity the second high-pressure side, tunnel, the charged display lamp of circuit b is bright.
Fig. 2 is the schematic block circuit diagram of the signal processing circuit of the present embodiment
The signal processing circuit of the present embodiment, has two identical signal acquiring systems, each signal acquiring system by
Voltage nuclear phase terminal, amplitude limiter circuit, comparator are in series.Two identical signal acquiring systems are respectively by voltage nuclear phase end
Son gathers two tested phases, and voltage nuclear phase terminal contacts with the outfan of tested high-tension line capacitance sensor, is coupled out and has
Certain phase relation frequency is the voltage signal of power frequency, by the amplitude limiter circuit integrated chip of outsourcing (amplitude limiter circuit be) having
The voltage waveform signal of certain phase relation takes out, and after delivering to comparator (comparator is the integrated chip of outsourcing) shaping, simultaneously
Deliver to NAND circuit (inverter circuit is outsourcing chip) and the phase contrast of two measured circuits can be obtained.
Fig. 3 is the front view of the product-high-tension switch cabinet nuclear phase instrument of the present embodiment.
" CH1, CH2 ": phase is surveyed in jack reception,
" ground connection ": receive big ground,
" CH1 display lamp ": display lamp bright expression passage 1 is charged,
" homophase display lamp ": connect two of display lamp bright expression CH1 and CH2 are same phase,
" CH2 display lamp ": display lamp bright expression passage 2 is charged,
" out-phase display lamp ": connect two of display lamp bright expression CH1 and CH2 are not homophase,
" power lights ": opening of device display lamp is bright, represents that device battery has electricity,
" under-voltage ": display lamp bright expression battery electric power is not enough, needs charging,
" charge ": display lamp bright expression equipment charge circuit connects, and charges,
" having been filled with ": display lamp bright expression charging complete, battery electric power is sufficient,
" ON/OFF ": shift knob, carries out facility switching machine switching.
Claims (2)
1. a general phase-difference type switch cabinet phasing device, it is characterised in that: mainly by signal processing circuit, microprocessor,
Battery, on-off circuit, power supply indicator, two charged display lamps of circuit, homophase display lamp and out-phase display lamp are constituted；Battery is
Phase checking device provides electric power；The charged display lamp of circuit is used for showing that tested phase is the most charged；
Described signal processing circuit, has two identical signal acquiring systems, and each signal acquiring system is by voltage nuclear phase end
Son, amplitude limiter circuit, comparator are in series；Two identical signal acquiring systems gather two by voltage nuclear phase terminal respectively
Tested phase, voltage nuclear phase terminal contacts with the outfan of tested high-tension line capacitance sensor, is coupled out and has a phase bit pass
Be frequency be the voltage signal of power frequency, by amplitude limiter circuit, the voltage waveform signal with certain phase relation is taken out, and send
After comparator shaping, it is simultaneously sent to NAND circuit and i.e. obtains the phase contrast of two measured circuits.
The most general phase-difference type switch cabinet phasing device, it is characterised in that: described microprocessor, its
Chip be with32 8-digit microcontrollers for kernel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620698644.7U CN205786876U (en) | 2016-06-27 | 2016-06-27 | A kind of general phase-difference type switch cabinet phasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620698644.7U CN205786876U (en) | 2016-06-27 | 2016-06-27 | A kind of general phase-difference type switch cabinet phasing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205786876U true CN205786876U (en) | 2016-12-07 |
Family
ID=58126179
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|---|---|---|---|
| CN201620698644.7U Expired - Fee Related CN205786876U (en) | 2016-06-27 | 2016-06-27 | A kind of general phase-difference type switch cabinet phasing device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108303595A (en) * | 2018-03-14 | 2018-07-20 | 云南电网有限责任公司电力科学研究院 | A kind of neutral point capacitive current testing methods based on alien frequencies phase current, apparatus and system |
| CN108333438A (en) * | 2018-03-14 | 2018-07-27 | 云南电网有限责任公司电力科学研究院 | A kind of test method of capacitance current, apparatus and system |
| CN108535528A (en) * | 2018-03-14 | 2018-09-14 | 云南电网有限责任公司电力科学研究院 | A kind of neutral point capacitive current testing methods based on frequency sweep method, apparatus and system |
| CN108548982A (en) * | 2018-03-14 | 2018-09-18 | 云南电网有限责任公司电力科学研究院 | A kind of test method of capacitance current, apparatus and system |
| CN108548983A (en) * | 2018-03-14 | 2018-09-18 | 云南电网有限责任公司电力科学研究院 | A kind of test method of capacitance current, apparatus and system |
| CN108646125A (en) * | 2018-03-14 | 2018-10-12 | 云南电网有限责任公司电力科学研究院 | A kind of test method of capacitance current, apparatus and system |
| CN109001533A (en) * | 2018-07-11 | 2018-12-14 | 国网湖南省电力有限公司 | Switchgear is to phase method |
| CN109449908A (en) * | 2018-12-12 | 2019-03-08 | 武汉泰可电气股份有限公司 | Lightening surge preventing HV live displaying nuclear phase blocking device and system |
| CN112051448A (en) * | 2020-10-21 | 2020-12-08 | 国网新疆电力有限公司乌鲁木齐供电公司 | Intelligent multi-path voltage phase checking instrument for transformer substation and control method thereof |
| CN112051459A (en) * | 2020-08-31 | 2020-12-08 | 国网北京市电力公司 | Phase checking method and charged display with double phase checking functions |
| CN112946513A (en) * | 2021-02-03 | 2021-06-11 | 山东钢铁股份有限公司 | Phase checking method for power supply of transformer substation |
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2016
- 2016-06-27 CN CN201620698644.7U patent/CN205786876U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108548983B (en) * | 2018-03-14 | 2020-02-07 | 云南电网有限责任公司电力科学研究院 | Method, device and system for testing capacitance current |
| CN108535528A (en) * | 2018-03-14 | 2018-09-14 | 云南电网有限责任公司电力科学研究院 | A kind of neutral point capacitive current testing methods based on frequency sweep method, apparatus and system |
| CN108646125B (en) * | 2018-03-14 | 2020-02-07 | 云南电网有限责任公司电力科学研究院 | Method, device and system for testing capacitance current |
| CN108548982B (en) * | 2018-03-14 | 2020-03-10 | 云南电网有限责任公司电力科学研究院 | Method, device and system for testing capacitance current |
| CN108548983A (en) * | 2018-03-14 | 2018-09-18 | 云南电网有限责任公司电力科学研究院 | A kind of test method of capacitance current, apparatus and system |
| CN108646125A (en) * | 2018-03-14 | 2018-10-12 | 云南电网有限责任公司电力科学研究院 | A kind of test method of capacitance current, apparatus and system |
| CN108303595A (en) * | 2018-03-14 | 2018-07-20 | 云南电网有限责任公司电力科学研究院 | A kind of neutral point capacitive current testing methods based on alien frequencies phase current, apparatus and system |
| CN108303595B (en) * | 2018-03-14 | 2020-04-10 | 云南电网有限责任公司电力科学研究院 | Capacitive current testing method, device and system based on pilot frequency phase current |
| CN108333438B (en) * | 2018-03-14 | 2020-04-10 | 云南电网有限责任公司电力科学研究院 | Method, device and system for testing capacitance current |
| CN108333438A (en) * | 2018-03-14 | 2018-07-27 | 云南电网有限责任公司电力科学研究院 | A kind of test method of capacitance current, apparatus and system |
| CN108548982A (en) * | 2018-03-14 | 2018-09-18 | 云南电网有限责任公司电力科学研究院 | A kind of test method of capacitance current, apparatus and system |
| CN109001533A (en) * | 2018-07-11 | 2018-12-14 | 国网湖南省电力有限公司 | Switchgear is to phase method |
| CN109449908A (en) * | 2018-12-12 | 2019-03-08 | 武汉泰可电气股份有限公司 | Lightening surge preventing HV live displaying nuclear phase blocking device and system |
| CN112051459B (en) * | 2020-08-31 | 2024-01-02 | 国网北京市电力公司 | Nuclear phase method and electrified display with dual nuclear phase function |
| CN112051459A (en) * | 2020-08-31 | 2020-12-08 | 国网北京市电力公司 | Phase checking method and charged display with double phase checking functions |
| CN112051448A (en) * | 2020-10-21 | 2020-12-08 | 国网新疆电力有限公司乌鲁木齐供电公司 | Intelligent multi-path voltage phase checking instrument for transformer substation and control method thereof |
| CN112051448B (en) * | 2020-10-21 | 2023-06-06 | 国网新疆电力有限公司乌鲁木齐供电公司 | Intelligent multi-path voltage phase detector for transformer substation and control method thereof |
| CN112946513A (en) * | 2021-02-03 | 2021-06-11 | 山东钢铁股份有限公司 | Phase checking method for power supply of transformer substation |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20161207 Termination date: 20180627 |
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| CF01 | Termination of patent right due to non-payment of annual fee |