CN104062513A - Secondary phase detecting instrument and method - Google Patents
Secondary phase detecting instrument and method Download PDFInfo
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- CN104062513A CN104062513A CN201410214362.0A CN201410214362A CN104062513A CN 104062513 A CN104062513 A CN 104062513A CN 201410214362 A CN201410214362 A CN 201410214362A CN 104062513 A CN104062513 A CN 104062513A
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Abstract
The invention discloses a secondary phase detecting instrument and method. The secondary phase detecting instrument comprises a low-voltage PT (Potential Transformer) module set, an A/D module, a master control MCU (Microprogrammed Control Unit) module, a human-computer interaction module and a power module; when in use, six lines of which the voltages are to be checked are connected to corresponding interfaces, the phase is started to be checked after powering until successfully checking the phase, any artificial interference is not needed during phase checking, and therefore, the phase checking operation is simple; in addition, the phase checking can be accurately carried out by acquiring the voltage within 20m under a cycle, so that time for waiting in the whole phase checking process is short, and as a result, the phase checking efficiency is greatly raised; finally the intelligent detection of a three-phase electrical phase sequence at any voltage grade can be performed under the existing artificial phase checking hardware condition, and therefore, the applicable scope is wide.
Description
Technical field
The invention belongs to three-phase phase sequence judgement, especially a kind of secondary nuclear phase instrument and nuclear-phase method.
Background technology
Secondary nuclear phase is the regular operation of electric system maintainer.Transformer or voltage transformer (VT) complete install or overhaul after, transformer or changed after voltage transformer (VT) changed after inside and outside wiring or wiring group, power circuit or cable connection variation or trend change, with cyclization or when relevant secondary circuit overhauls side by side etc. under situation, all must carry out three-phase circuit phasing, be nuclear phase test, consistent to guarantee the power supply three-phase phase-sequence that different electrical power point provides.Whether nuclear phase test is exactly to examine to need the phase sequence of cyclization or two power-supply systems arranged side by side (or transformer, voltage transformer (VT)) consistent, correct.
For 380V system, generally carry out phasing with multimeter; For 10-35KV neutral point isolated neutral system, generally carry out phasing with special high-pressure phasing bar; For 110kv and above solidly earthed neutral system, generally all adopt secondary nuclear-phase method to judge that whether phase place is correct.
What current secondary nuclear phase generally adopted is the method for on-the-spot artificial cognition, needs size, the phase place of the voltage of artificial hanging wire, two systems of measurement, then makes the judgement whether phase place is consistent, and it exists following problem:
Nuclear phase process need is opened work ticket, does safety practice, need to coordinate operations staff to operate, therefore the stand-by period very long, greatly reduce the work efficiency of relay protection class; If generation misphase again carries out secondary phasing after once adjusting phase place, the required stand-by period is longer for a long time, and requires higher to operating personnel's experience; In manual phasing process, many factors causes having wrong possibility, once secondary phasing mistake will cause heavy losses and impact to equipment and electrical network.
Summary of the invention
Goal of the invention: provide a kind of secondary nuclear phase instrument and nuclear-phase method, the problems referred to above that exist to solve prior art.
Technical scheme: a kind of secondary nuclear phase instrument, comprising:
Low pressure PT module group, within being converted to the electric pressure for the treatment of core the electric pressure of A/D modular converter permission access;
A/D module, is connected with described low pressure PT module group, completes voltage signal conversion to digital quantity by analog quantity, the voltage to be measured that provides digital quantity to represent for main control MCU module;
Main control MCU module, for calculating nuclear phase parameter, judging nuclear phase logic, and processes nuclear phase result;
Human-computer interaction module, uses touch display screen, is connected with main control MCU module, also preserves, starts the signal of nuclear phase, in real time display instrument running status, each voltage swing and fault solution for receiving the instrument key parameter of input;
Power module is above-mentioned each module for power supply.
Described power module adopts dual power supply pattern: in high voltage grade or low voltage grade situation, system is passed through powered battery; In 380V system, power module can be got arbitrary phase from access six phase power leads of this instrument, is other module for power supply of this instrument after transformation rectifying and voltage-stabilizing.
Adopt above-mentioned secondary nuclear phase instrument to carry out the method for nuclear phase, comprise the steps:
Each functional module of S1, wiring, energising initialization, system is carried out self and is detected, and ensures that communication, input arrange and can normally work;
The nuclear phase parameter that S2, reception user arrange, comprise: nuclear phase precision, in-phase voltage difference upper limit, non-in-phase voltage difference lower limit, non-in-phase voltage difference upper limit, treat core voltage nominal value, treat core voltage nominal value lower limit, and treat the core voltage nominal value upper limit;
S3, sample and be calculated as follows parameter: A phase voltage U
a, B phase voltage U
b, C phase voltage U
c, I phase voltage U
i, II phase voltage U
iI, III phase voltage U
iII, A phase and I mutually between line voltage U
aI, A phase and II mutually between line voltage U
aII, A phase and III mutually between line voltage U
aIII, B phase and I mutually between line voltage U
bI, B phase and II mutually between line voltage U
bII, B phase and III mutually between line voltage U
bIII, C phase and I mutually between line voltage U
cI, C phase and II mutually between line voltage U
cII, and line voltage U between C phase and III phase
cIII;
S4, phase voltage fault get rid of: what arrange according to user treats the core voltage nominal value upper limit and lower limit, for 6 phase voltage U
i(i=A, B, C, I, II, III):
When they all meet U
base1≤ U
i≤ U
base2time, forward step S5 to; Otherwise output fault is got rid of suggestion to touch display screen, waits for the instruction of inputting by touch display screen; Fault is returned according to the continuation nuclear phase instruction receiving after getting rid of, execution step S1;
S5, definite difference on the frequency for the treatment of core both sides voltage: calculate A phase voltage frequency f
a, I phase voltage frequency f
i, A phase and I phase voltage difference on the frequency Δ f, above 3 parameters of output, to touch display screen, if difference on the frequency is less than preset value, are carried out next step, on the contrary prompting fault, adopting uses the same method determines whether the frequency of B phase and C phase meets the requirements;
S6, phase place are appraised and decided: when treating that core both end voltage frequency is consistent, enough hour of phase differential, and
satisfy condition
time, think
output nuclear phase result and solution are to touch display screen; If wiring is wrong, shows mistake by touch display screen, and perform step S1 nuclear phase again; If nuclear phase is entirely true, nuclear phase finishes, wherein, and x
1, x
2=A, B, C; y
1, y
2=I, II, III.
Beneficial effect: in use, only 6 tunnels need be treated to core voltage circuit access corresponding interface, automatically start nuclear phase after power transmission, until nuclear phase success, middle without Human disturbance, therefore nuclear phase is simple to operate; In addition, owing to only need to gathering just correct nuclear phase of voltage swing in one-period 20ms, therefore the time of whole nuclear phase process need wait is very short, greatly improved nuclear phase efficiency; Finally, can realize under the hardware condition of existing artificial nuclear phase, the Intelligent Measurement of the three-phase phase sequence to free voltage grade, applied widely.
Brief description of the drawings
Fig. 1 is nuclear phase schematic diagram of the present invention.
Fig. 2 is structured flowchart of the present invention.
Fig. 3 is nuclear phase process schematic diagram of the present invention.
Fig. 4 is the overall flow figure of nuclear-phase method of the present invention.
Fig. 5 is nuclear phase processing scheme figure of the present invention.
Embodiment
As depicted in figs. 1 and 2, the present invention includes acquiescence phase sequence three-phase voltage connection jaws and three-phase connection jaws, touch display screen, the protection of instrumentation shell for the treatment of core.Wherein, I, II, III are the three-phase connection jaws for the treatment of core, i.e. the three-phase of phase sequence the unknown; A, B, C be treat and three-phase connection jaws, phase sequence is known or can be made as known three-phase connection jaws; Man Machine Interface is touch display screen, directly hand touch the key parameter of input change instrument and preserve, hand touches and selects to start to start nuclear phase etc., display instrument running status, each voltage swing and last solution in real time simultaneously.
Inside schematic diagram as shown in Figure 2, mainly comprises 5 large functional modules: low pressure PT module group, A/D module, MCU main control module, human-computer interaction module and power module.
Wherein, low pressure PT module group, secondary side is the voltage transformer (VT) of regulation low pressure, for the conversion of electric pressure, within the electric pressure for the treatment of core being converted to the electric pressure of A/D modular converter permission access.According to the designing requirement of this instrument, select the low pressure PT of 6 380V/5V specification types, 380V can directly access this instrument, and higher electric pressure directly accesses this instrument after the PT secondary side standard 100V being equipped with, therefore this instrument can be realized under the hardware condition of existing artificial nuclear phase, the phase sequence Intelligent Measurement of the three-phase electricity to free voltage grade.6 low pressure PT module composition low pressure PT module groups, respectively by treat core three-phase and treat and three-phase totally six groups of voltages convert regulation low pressure to simultaneously, a side joint high pressure of its mesolow PT is treated core circuit, secondary side joint voltage A/D module input.
A/D module, simulating signal converts digital signal module to, completes voltage signal conversion to digital quantity by analog quantity, represents for main control MCU module provides the digital quantity of voltage swing to be measured.A/D module is made up of dedicated convert chip and auxiliary circuit thereof, receives the low-voltage analog signal from low pressure PT module group secondary side, and output digit signals sends main control MCU module to.
Main control MCU module, built-in nuclear phase program, described nuclear phase program is the core of this patent of invention, completes the major functions such as nuclear phase calculation of parameter, the judgement of nuclear phase logic, nuclear phase result treatment.Also there are the functions such as the demonstration of support, storage.
Man Machine Interface, i.e. touch display screen, directly hand touch the key parameter of input change instrument and preserve, hand touches and selects to start to start nuclear phase etc., display instrument running status, each voltage swing and last solution in real time simultaneously.
Power module, from access six phase power leads of this instrument, getting arbitrary phase, is other module for power supply of this instrument after transformation rectifying and voltage-stabilizing, without independent Power supply in addition, both reduce instrument volume, solved again the cumbersome problem of outdoor independent configuration power supply.
The detailed process of main control MCU module calculation of parameter and judgement is as follows:
First this instrument can detect and treats core and band and whether have phase shortage or other faults.Basis for estimation is: if having a phase voltage size be zero or lower than other symmetrical phase voltages 70% and more than, be open-phase fault or other catastrophic failures, power-off in time maintenance.
If without open-phase fault, and think and treat and side three-phase phase-sequence is correct phase sequence, treat core side and treat and the phase voltage of side between difference be only likely one of 6 kinds of situations of Fig. 5, main control MCU module is according to the information of voltage of six phases that collect, carry out nuclear phase, nuclear phase step is specific as follows:
S1, initialization system: after system boot, first program needs initialization, and system self is detected, guarantee that the functions such as communication, input arrange are normal;
S2, reception nuclear phase parameter: comprise nuclear phase precision K (system default value is 1000), K
xy1(system default value is 0.98), K
xy2(system default value is 1.04), in-phase voltage difference upper limit U
set1(system default value is 1V), non-in-phase voltage difference lower limit U
set2(system default value is 375V), non-in-phase voltage difference upper limit U
set3(system default value is 415V), treats core voltage nominal value U
base(system default value is 220V), treats core voltage nominal value lower limit U
base1(system default value is 250V), treats core voltage nominal value upper limit U
base2(system default value is 200V);
S3, voltage sample also carry out following calculation of parameter: A phase voltage U
a, B phase voltage U
b, C phase voltage U
c, I phase voltage U
i, II phase voltage U
iI, III phase voltage U
iII, line voltage U between A phase and I phase
aI, line voltage U between A phase and II phase
aII, line voltage U between A phase and III phase
aIII, line voltage U between B phase and I phase
bI, line voltage U between B phase and II phase
bII, line voltage U between B phase and III phase
bIII, line voltage U between C phase and I phase
cI, line voltage U between C phase and II phase
cII, line voltage U between C phase and III phase
cIII, A phase voltage frequency f
a, I phase voltage frequency f
i, A phase voltage frequency and I phase voltage difference on the frequency Δ f;
S4, phase voltage fault get rid of: what arrange according to user treats core voltage nominal value upper limit U
base2and lower limit U
base1, for 6 phase voltage U
i(i=A, B, C, I, II, III), when they all meet U
base1≤ U
i≤ U
base2time, carry out the 5th) step, otherwise output fault is got rid of suggestion to man-machine interaction window, waits for man-machine interaction window input instruction.After nuclear phase personnel fix a breakdown, input continues nuclear phase instruction.System is subject to continuing returning to execution S1 after nuclear phase instruction;
S5, treat that core both sides electric voltage frequency is poor and determine: calculate A phase voltage frequency f
a, I phase voltage frequency f
i, A phase and I phase voltage difference on the frequency Δ f, above 3 parameters of output are to touch-screen display module;
S6, phase place are appraised and decided: when treating that core both end voltage frequency is consistent, enough hour of phase differential, and 9 phase voltage U
xy(x=A, B, C; Y=I, II, III) satisfied relation of equal quantity will be one of situation of 6 kinds of relation of equal quantity shown in Fig. 5 (consider the error that may exist in sample path and in computation process, when
(x
1, x
2=A, B, C; y
1, y
2=I, II, III) satisfy condition
time, think
output nuclear phase result and processing advise to human-computer interaction module, if wiring is wrong, prompting nuclear phase staff corrects, and nuclear phase again, carries out the 1st) step; If nuclear phase is entirely true, nuclear phase finishes.
As shown in Figure 4, nuclear-phase method of the present invention is as follows:
In the situation that core three-phase is treated in guarantee and treat that also three-phase side isolating switch all disconnects power-off, respectively line is accessed to the corresponding interface of this intelligent nuclear phase meter, instrument acquiescence is treated the access of core three-phase I, II, III tri-interfaces, treats also three-phase access A, B, C tri-interfaces.After wiring, the energising of both sides breaker closing, now power module is started working, for other each modules provide work required electric pressure.
Main control MCU is started working, and enters initial phase.In wherein initialized, have man-machine interaction initialization and A/D module initialization.Initial phase does not start A/D conversion and data transmission.If desired revise key parameter, changed in human-computer interaction interface input by operating personnel, and determine and preserve.If press default conditions, can directly skip parameter modification, directly select to start to detect phase sequence.Whole phase sequence testing process has been detected automatically by main control MCU entirely, and process as described above, middle without manual operation.Owing to only needing to detect the voltage of a sinusoidal cycles 20ms, testing process needed wait time is very short, has detected the rear phase sequence result automatically detecting in touch display screen demonstration, and has provided visual correct grid-connected connection plan.Ending phase must be taken out stitches after both sides breaker open operation definite safety again.
In the present invention, for nuclear phase precision is further improved, introduce nuclear phase precision K, by in-phase voltage difference linear amplification in proportion, the in-phase voltage difference after amplification still must be less than or equal to non-in-phase voltage difference.
From above finding out: the present invention is simple to operate, operating personnel only need, by treating that the circuit of core both sides accesses the corresponding interface of instrument, just can start nuclear phase automatically after power transmission, until nuclear phase success is middle without Human disturbance; Nuclear phase quick and precisely, only need to gather just accurate nuclear phase of voltage swing in one-period 20ms, therefore the time of whole nuclear phase process need wait is very short, has greatly improved nuclear phase efficiency; Low and the unsafe artificial nuclear phase operation of existing complexity, efficiency can be replaced completely, and the Intelligent nuclear phase of the three-phase phase sequence to free voltage grade can be realized under the hardware condition of existing artificial nuclear phase.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple equivalents to technical scheme of the present invention, these equivalents all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
Claims (4)
1. a secondary nuclear phase instrument, is characterized in that, comprising:
Low pressure P T module group, within being converted to the electric pressure for the treatment of core the electric pressure of A/D modular converter permission access;
A/0 module, is connected with described low pressure P T module group, completes voltage signal conversion to digital quantity by analog quantity, the voltage to be measured that provides digital quantity to represent for master control M C U module;
Master control M C U module, for calculating nuclear phase parameter, judging nuclear phase logic, and processes nuclear phase result;
Human-computer interaction module, uses touch display screen, is connected with master control M C U module, also preserves, starts the signal of nuclear phase, in real time display instrument running status, each voltage swing and fault solution for receiving the instrument key parameter of input;
Power module is above-mentioned each module for power supply.
2. secondary nuclear phase instrument as claimed in claim 1, is characterized in that, described power module adopts dual power supply pattern: in voltage levels or low-voltage-grade situation, system is passed through powered battery; In 380V system, power module can be got arbitrary phase from access six phase power leads of this instrument, is other module for power supply of this instrument after transformation rectifying and voltage-stabilizing.
3. adopt secondary nuclear phase instrument described in claim 1 or 2 to carry out a method for nuclear phase, it is characterized in that, comprise the steps:
Each functional module of S1, wiring, energising initialization, system is carried out self and is detected, and ensures that communication, input arrange and can normally work;
The nuclear phase parameter that S2, reception user arrange, comprise: nuclear phase precision, in-phase voltage difference upper limit, non-in-phase voltage difference lower limit, non-in-phase voltage difference upper limit, treat core voltage nominal value, treat core voltage nominal value lower limit, and treat the core voltage nominal value upper limit;
S3, sample and be calculated as follows parameter: A phase voltage U
a, B phase voltage U
b, C phase voltage U
c, I phase voltage U
i, II phase voltage U
iI, III phase voltage U
iII, A phase and I mutually between line voltage U
aI, A phase with
iIline voltage U mutually
aII, A phase with
iIIline voltage U mutually
aIII, B phase and I mutually between line voltage U
bI, B phase with
iIline voltage U mutually
bII, B phase with
iIIline voltage U mutually
bIII, C phase and I mutually between line voltage U
cI, C phase with
iIline voltage U mutually
cII, and C phase with
iIIline voltage U mutually
cIII;
S4, phase voltage fault get rid of: what arrange according to user treats the core voltage nominal value upper limit and lower limit, for 6 phase voltage U
i(i=A, B, C, I, TT, III):
When they all meet U
base1≤ U
i≤ U
base2time, forward step S5 to; Otherwise output fault is got rid of suggestion to touch display screen, waits for the instruction of inputting by touch display screen; Fault is returned according to the continuation nuclear phase instruction receiving after getting rid of, execution step S1;
S5, definite difference on the frequency for the treatment of core both sides voltage: calculate A phase voltage frequency f
a, I phase voltage frequency f
i, A phase and I phase voltage difference on the frequency Δ f, above 3 parameters of output, to touch display screen, if difference on the frequency is less than preset value, are carried out next step, on the contrary prompting fault, adopting uses the same method determines whether the frequency of B phase and C phase meets the requirements;
S6, phase place are appraised and decided: when treating that core both end voltage frequency is consistent, enough hour of phase differential, and U
x1y1u
x2y2k satisfies condition
xy1≤ | U
x1y1-U
x2y2|≤K
xy2time, think U
x1y1=U
x2y2, output nuclear phase result and solution are to touch display screen; If wiring is wrong, shows mistake by touch display screen, and perform step S1 nuclear phase again; If nuclear phase is entirely true, nuclear phase finishes, wherein, and x
1, x
2=A, B, C; y
1, y
2=I, II, III.
4. nuclear-phase method as claimed in claim 3, is characterized in that, also comprises:
Step S0, detect whether have phase shortage or other faults: if having a phase voltage size be zero or lower than other symmetrical phase voltages 70% and more than, be open-phase fault or other catastrophic failures.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104360174A (en) * | 2014-12-05 | 2015-02-18 | 国家电网公司 | Secondary automatic nuclear phase device of ring main unit |
| CN104569629A (en) * | 2015-02-03 | 2015-04-29 | 孙超 | Phase sequence tester of low-voltage cables |
| CN105334402A (en) * | 2015-11-20 | 2016-02-17 | 国网上海市电力公司 | Online low-voltage nuclear phase device and nuclear phase method thereof |
| CN106771679A (en) * | 2016-12-20 | 2017-05-31 | 国网山东省电力公司威海供电公司 | The secondary phase checking device of combined instrument transformer |
| CN106841780A (en) * | 2016-12-30 | 2017-06-13 | 易瓦特科技股份公司 | Long-range nuclear-phase method and device |
| CN108196139A (en) * | 2018-01-19 | 2018-06-22 | 山东钢铁集团日照有限公司 | A kind of grid-connected nuclear-phase method of small power generation unit |
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| CN108445308A (en) * | 2018-03-13 | 2018-08-24 | 广东里田电力工业有限公司 | A kind of novel phase checking device with voice prompt |
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| CN110196359A (en) * | 2019-06-17 | 2019-09-03 | 湖北工业大学 | The nuclear phase exception localization method of low-voltage distribution system |
| CN110726884A (en) * | 2019-11-21 | 2020-01-24 | 国网福建省电力有限公司 | Remote phase checking instrument based on charged indicator and phase checking method |
| CN110854924A (en) * | 2019-11-04 | 2020-02-28 | 中国能源建设集团华东电力试验研究院有限公司 | One-time voltage-on synchronous phase-checking linkage switching inspection system and inspection method for electrical system |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050174076A1 (en) * | 2004-02-09 | 2005-08-11 | Nippon Yusoki Co., Ltd. | Inverter control apparatus and inverter control method |
| JP2006194766A (en) * | 2005-01-14 | 2006-07-27 | Toyo Electric Mfg Co Ltd | Initial phase detector |
| CN201811998U (en) * | 2010-09-14 | 2011-04-27 | 徐国治 | Three-phase alternating current (AC) phase sequence detecting device |
| CN102279323A (en) * | 2011-04-29 | 2011-12-14 | 河南省电力公司鹤壁供电公司 | Secondary accurate phasing method for intelligent transformer station |
| CN202494728U (en) * | 2012-03-07 | 2012-10-17 | 中国十九冶集团有限公司 | Low-voltage phase checking device |
| CN103018580A (en) * | 2013-01-06 | 2013-04-03 | 漳州科华技术有限责任公司 | Method and device for detecting vector transformation of three-phase power phase sequence |
| CN103018623A (en) * | 2012-12-18 | 2013-04-03 | 辽宁省电力有限公司辽阳供电公司 | Method for automatically adjusting phase sequence wiring error |
| CN203416047U (en) * | 2013-07-05 | 2014-01-29 | 国家电网公司 | Double bus closing monitoring and control integration apparatus |
| CN103595037A (en) * | 2013-10-22 | 2014-02-19 | 澳柯玛股份有限公司 | Three-phase alternating current phase sequence error correction device |
-
2014
- 2014-05-20 CN CN201410214362.0A patent/CN104062513B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050174076A1 (en) * | 2004-02-09 | 2005-08-11 | Nippon Yusoki Co., Ltd. | Inverter control apparatus and inverter control method |
| JP2006194766A (en) * | 2005-01-14 | 2006-07-27 | Toyo Electric Mfg Co Ltd | Initial phase detector |
| CN201811998U (en) * | 2010-09-14 | 2011-04-27 | 徐国治 | Three-phase alternating current (AC) phase sequence detecting device |
| CN102279323A (en) * | 2011-04-29 | 2011-12-14 | 河南省电力公司鹤壁供电公司 | Secondary accurate phasing method for intelligent transformer station |
| CN202494728U (en) * | 2012-03-07 | 2012-10-17 | 中国十九冶集团有限公司 | Low-voltage phase checking device |
| CN103018623A (en) * | 2012-12-18 | 2013-04-03 | 辽宁省电力有限公司辽阳供电公司 | Method for automatically adjusting phase sequence wiring error |
| CN103018580A (en) * | 2013-01-06 | 2013-04-03 | 漳州科华技术有限责任公司 | Method and device for detecting vector transformation of three-phase power phase sequence |
| CN203416047U (en) * | 2013-07-05 | 2014-01-29 | 国家电网公司 | Double bus closing monitoring and control integration apparatus |
| CN103595037A (en) * | 2013-10-22 | 2014-02-19 | 澳柯玛股份有限公司 | Three-phase alternating current phase sequence error correction device |
Non-Patent Citations (3)
| Title |
|---|
| 苏文博: "关于发电机组启动时核相方法的研究", 《电力自动化与仪表》 * |
| 陈强等: "快速便捷的核相方法在热电厂的应用", 《莱钢科技》 * |
| 魏丽芳等: "新设备启动试运中采用不同核相方法必要性的探讨", 《华中电力》 * |
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| CN104569629A (en) * | 2015-02-03 | 2015-04-29 | 孙超 | Phase sequence tester of low-voltage cables |
| CN105334402A (en) * | 2015-11-20 | 2016-02-17 | 国网上海市电力公司 | Online low-voltage nuclear phase device and nuclear phase method thereof |
| CN106771679A (en) * | 2016-12-20 | 2017-05-31 | 国网山东省电力公司威海供电公司 | The secondary phase checking device of combined instrument transformer |
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| CN110196359A (en) * | 2019-06-17 | 2019-09-03 | 湖北工业大学 | The nuclear phase exception localization method of low-voltage distribution system |
| CN110854924A (en) * | 2019-11-04 | 2020-02-28 | 中国能源建设集团华东电力试验研究院有限公司 | One-time voltage-on synchronous phase-checking linkage switching inspection system and inspection method for electrical system |
| CN110854924B (en) * | 2019-11-04 | 2021-03-30 | 中国能源建设集团华东电力试验研究院有限公司 | One-time voltage-on synchronous phase-checking linkage switching inspection system and inspection method for electrical system |
| CN110726884A (en) * | 2019-11-21 | 2020-01-24 | 国网福建省电力有限公司 | Remote phase checking instrument based on charged indicator and phase checking method |
| CN111864559A (en) * | 2020-06-30 | 2020-10-30 | 国网辽宁省电力有限公司营口供电公司 | 400-volt bypass switch, nuclear phase current and voltage monitoring device and using method |
| CN111864559B (en) * | 2020-06-30 | 2023-11-07 | 国网辽宁省电力有限公司营口供电公司 | 400-volt bypass switch and nuclear phase current and voltage monitoring device and application method |
| 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 |
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