CN104505863A - A method for determining and adjusting wireless phase detection - Google Patents
A method for determining and adjusting wireless phase detection Download PDFInfo
- Publication number
- CN104505863A CN104505863A CN201410673665.9A CN201410673665A CN104505863A CN 104505863 A CN104505863 A CN 104505863A CN 201410673665 A CN201410673665 A CN 201410673665A CN 104505863 A CN104505863 A CN 104505863A
- Authority
- CN
- China
- Prior art keywords
- advanced
- phase
- ultrasonic
- sequence
- main transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/40—Synchronising a generator for connection to a network or to another generator
- H02J3/44—Synchronising a generator for connection to a network or to another generator with means for ensuring correct phase sequence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/18—Indicating phase sequence; Indicating synchronism
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a method for determining and adjusting wireless phase detection. A 60-degree phase difference is formed during wireless phase detection. The phase angle appears during phase detection, it should be checked that whether one of the incoming power supply lines AB, BC or CA at the high voltage side of a main transformer at a primary level is inversely connected, and then the AB, BC or CA at the high voltage side are exchanged. Since the phase sequence at a low voltage side becomes opposite to a previous phase sequence after the exchange of the AB, BC or CA at the high voltage side, it is necessary to adjust and check, by turning on the current and voltage, the current and voltage at a secondary side of all piece of substation equipment, wherein all outgoing lines of the AB, BC or CA are exchanged with each other, and the implementation details of the distance protection, measurement and control as well as inspection of a metrology phasor diagram of all 10 KV outgoing lines should depend on on-site actual situations. A 30-degree phase difference is formed during wireless phase detection, and the phase angle appears during phase detection due to inconsistent polarities at the high voltage side of the main transformer. The status of the polarity of the main power transformer at the primary level should be checked and adjusted accordingly on the basis of actual situations.
Description
Technical field
The present invention relates to a kind of method judging and adjust wireless nuclear phase.
Background technology
Electric equipment on new will be incorporated into the power networks or loop-net operation needs several necessary condition: 1, same electric pressure; 2, same phase sequence; 3, same period.The basic step of problem of this wherein electric pressure is clear, and can be undertaken monitoring and comparing by voltage transformer, and the problem of phase sequence then needs the method doing high-voltage nuclear phase test or voltage transformer secondary nuclear phase to solve.In practical application, high-voltage nuclear phase application many, wherein relatively safety and be high-voltage radio nuclear phase instrument simply and effectively, nuclear phase angular difference can be judged by wireless core phase instrument.In actual application, nuclear phase A-A ', A-B ', A-C ' are carried out to three-phase voltage and occurs 0 °, 120 °, 240 ° respectively, nuclear phase B-A ', B-B ', B-C ' also occur 0 °, 120 °, 240 ° respectively, nuclear phase C-A ', C-B ', C-C ' can occur 0 °, 120 °, 240 ° equally respectively, run into such situation, phase place is relatively good judgement then, and 0 ° of angle is then same-phase, also can directly judge conclusion and adjustment phase place according to phase diagram.But the actual nuclear phase middle period can run into all the other problems, such as nuclear phase A-A ', A-B ', A-C ' differ 60 °, 180 °, 300 ° or nuclear phase A-A ', A-B ', A-C ' differs 30 °, 150 °, 270 °, the just bad of such nuclear phase angular difference has judged, all cannot occur that 0 ° of angle is decided to be same-phase and phasing because how to adjust.Run into the data of this type of nuclear phase, bring very large difficulty can to the judgement of on-the-spot high-voltage nuclear phase test, situation that is incorrect for this type of phase sequence or that cannot proofread correctly cannot judge problem.
Summary of the invention
The invention provides a kind of method judging and adjust wireless nuclear phase, it can to in high-voltage radio nuclear phase, and the abnormal data of generation is analyzed, and situation that is incorrect for phase sequence or that cannot proofread carries out judging and providing Adjusted Option.
Present invention employs following technical scheme: a kind of judgement and adjust the method for wireless nuclear phase, it comprises the following steps:
One, deterministic process
When following test data provides test result be:
The advanced C ' of B ' 60 ° of C 60 ° before the advanced A ' of A 60 ° of B ultrasonic
The advanced A ' of C ' 180 ° of C 180 ° before the advanced B ' of A 180 ° of B ultrasonic
The advanced B ' of A ' 300 ° of C 300 ° before the advanced C ' of A 300 ° of B ultrasonic,
Wireless nuclear phase produces 60 ° of phase differences, its determination methods is: occur this phase angle in nuclear phase process, low-pressure side cannot adjust, survey power supply phase upper level main transformer high voltage side lead-in supply line AB, whether which has connect instead BC or CA, then by high-pressure side AB, BC or CA intermodulation, due to high-pressure side AB, after BC or CA intermodulation, the phase sequence of low-pressure side can be contrary with former phase sequence, so need full substation facilities secondary side current, Voltage Cortrol, through-flow logical pressure test checks, the AB of all outlets, BC or CA intermodulation adjusts, step-down voltage cable adjustment used, in addition to No. 1 main transformer, No. 2 main transformer hexagonal figure test, high and low pressure side is protected, observing and controlling, metering current voltage phasor-diagram checks, the protection of 35KV interval, observing and controlling, metering phasor diagram check, all 10KV outgoing line interval protections, observing and controlling, metering phasor diagram check, implementation detail is fixed by the actual conditions at scene,
When following test data provides test result be:
The advanced C ' of B ' 30 ° of C 30 ° before the advanced A ' of A 30 ° of B ultrasonic
The advanced A ' of C ' 150 ° of C 150 ° before the advanced B ' of A 150 ° of B ultrasonic
The advanced B ' of A ' 270 ° of C 270 ° before the advanced C ' of A 270 ° of B ultrasonic
Wireless nuclear phase produces 30 ° of phase differences, and its determination methods is occur this phase angle in nuclear phase process, causes because main transformer high-pressure side polarity group is inconsistent, surveys the polarity group situation of upper level power supply main transformer, adjusts for actual conditions;
Two, method of adjustment:
I, when actual nuclear phase data are: during the advanced A ' of A 0 °, the advanced B ' of the advanced C ' of B ' 120 °, C 240 °, A 240 ° before B ultrasonic, C ' 0 ° before B ultrasonic, the advanced C ' of the advanced A ' of C 120 °, A 120 °, A ' 240 ° before B ultrasonic, during the advanced B ' of C 0 °, A phase phase sequence is correct, and B, C phase phase sequence is incorrect, and its Adjusted Option is: B, C exchange;
II, when actual nuclear phase data are: the advanced A ' of A 240 °, B ' 0 ° before B ultrasonic, the advanced B ' of the advanced C ' of C 120 °, A 120 °, C ' 240 ° before B ultrasonic, the advanced A ' of C 0 °, the advanced C ' of A 0 °, before B ultrasonic during A ' 120 ° during the advanced B ' of C 240 °, B phase phase sequence is correct, A, C phase phase sequence is incorrect, and its Adjusted Option is: A, C exchange;
III, when actual nuclear phase data are: the advanced A ' of A 120 °, the advanced B ' of the advanced C ' of B ' 240 °, C 0 °, A 0 ° before B ultrasonic, C ' 120 ° before B ultrasonic, the advanced C ' of the advanced A ' of C 240 °, A 240 °, A ' 0 ° before B ultrasonic, the advanced B ' of C 120 °, C phase phase sequence is correct, and A, B phase phase sequence is incorrect, and its Adjusted Option is: A, B exchange;
IV, when actual nuclear phase data are: the advanced A ' of A 120 °, the advanced C ' of B ' 120 °, C 120 ° before B ultrasonic, the advanced B ' of A 240 °, the advanced C ' of the advanced A ' of C ' 240 °, C 240 °, A 0 ° before B ultrasonic, A ' 0 ° before B ultrasonic, the advanced B ' of C 0 °, A, B, C phase phase sequence is all incorrect, and its Adjusted Option is: C ' adjusts to B phase position, A ' adjusts to C phase position, and B ' adjusts to A phase position;
V, when actual nuclear phase data are: the advanced A ' of A 240 °, the advanced C ' of B ' 240 °, C 240 ° before B ultrasonic, the advanced B ' of A 0 °, the advanced C ' of the advanced A ' of C ' 0 °, C 0 °, A 120 ° before B ultrasonic, A ' 120 ° before B ultrasonic, the advanced B ' of C 120 °, A, B, C phase phase sequence is all incorrect, and its Adjusted Option is: C ' adjusts to A phase position, A ' adjusts to B phase position, and B ' adjusts to C phase position;
VI, when actual nuclear phase data are: the advanced A ' of A 60 °, the advanced C ' of B ' 60 °, C 60 ° before B ultrasonic, the advanced B ' of A 180 °, the advanced A ' of C ' 180 °, C 180 ° before B ultrasonic, the advanced C ' of A 300 °, the advanced B ' of A ' 300 °, C 300 ° before B ultrasonic, A, B, C three-phase phase-sequence is all incorrect, and its Adjusted Option is: low-pressure side cannot adjust, main transformer high voltage side lead-in, AB intermodulation, BC intermodulation, CA intermodulation, fixed by the actual conditions at scene;
VII, when actual nuclear phase data are: the advanced A ' of A 30 °, the advanced B ' of the advanced C ' of B ' 30 °, C 30 °, A 150 ° before B ultrasonic, C ' 150 ° before B ultrasonic, the advanced C ' of the advanced A ' of C 150 °, A 270 °, A ' 270 ° before B ultrasonic, the advanced B ' of C 270 °, A, B, C phase phase sequence is all incorrect, and its Adjusted Option is: cause because main transformer high-pressure side polarity group is inconsistent, surveys the polarity group situation of upper level main transformer.
The present invention has following beneficial effect: after have employed above technical scheme, the present invention judges phase sequence accurately by high-voltage nuclear phase phase sequence adjustment form, can avoid electrical network looped network, because of Problem of phase sequence, large equipment fault occurs, and accelerate testing crew in real work and accurately judge the time at Problem of phase sequence place, improve the accuracy rate of judging phase order, trouble-shoots direction is provided to the Adjusted Option occurred after phase sequence mistake, and gives adjustment suggestion.
Accompanying drawing explanation
Fig. 1 to be the wireless nuclear phase phase difference of the present invention be vectogram of 60 °.
Fig. 2 is the wiring group of the main transformer of 35kV electric substation of the present invention is the vectogram of YNd11.
Fig. 3 is the wiring group of the main transformer of 35kV electric substation of the present invention is the vectogram of Yy.
Fig. 4 be Fig. 3 YNd11 of the present invention overlapping with Fig. 4 Yy after vectogram.
Fig. 5 is that the present invention works as the anti-vectogram of later low-pressure side of high-pressure side AB.
Fig. 6 is that the present invention works as the anti-vectogram of the actual low-pressure side in later scene of high-pressure side AB.
Fig. 7 to be the wireless nuclear phase phase difference of the present invention be vectogram of 30 °.
Fig. 8 is 35 kilovolts of Gu high change primary system figure in the embodiment of the present invention.
Embodiment
The invention provides a kind of method judging and adjust wireless nuclear phase, it comprises the following steps:
One, deterministic process
When following test data provides test result be:
The advanced C ' of B ' 60 ° of C 60 ° before the advanced A ' of A 60 ° of B ultrasonic
The advanced A ' of C ' 180 ° of C 180 ° before the advanced B ' of A 180 ° of B ultrasonic
The advanced B ' of A ' 300 ° of C 300 ° before the advanced C ' of A 300 ° of B ultrasonic,
Wireless nuclear phase produces 60 ° of phase differences, the vectogram of 60 ° of phase differences is shown in Fig. 1, its determination methods is: occur this phase angle in nuclear phase process, low-pressure side cannot adjust, survey power supply phase upper level main transformer high voltage side lead-in supply line AB, whether which has connect instead BC or CA, then by high-pressure side AB, BC or CA intermodulation, due to high-pressure side AB, after BC or CA intermodulation, the phase sequence of low-pressure side can be contrary with former phase sequence, so need full substation facilities secondary side current, Voltage Cortrol, through-flow logical pressure test checks, the AB of all outlets, BC or CA intermodulation adjusts, step-down voltage cable adjustment used, in addition to No. 1 main transformer, No. 2 main transformer hexagonal figure test, high and low pressure side is protected, observing and controlling, metering current voltage phasor-diagram checks, the protection of 35KV interval, observing and controlling, metering phasor diagram check, all 10KV outgoing line interval protections, observing and controlling, the inspection of metering phasor diagram, implementation detail is fixed by the actual conditions at scene, analyze the reason of appearance 60 ° of phase differences: the wiring group of the main transformer of 35kV electric substation is YNd11, the vectogram of YNd11 is shown in Fig. 2, if the phase sequence of 35kV circuit access is correct, when high-pressure side A phase points to 12 orientation, low-pressure side should be 11 orientation, and as AB or BC of 35kV circuit access or after CA phase sequence connect instead, there will be following vectogram: be exemplified as high-pressure side AB and connect instead, because a phase of on-the-spot low-pressure side is actual think b phase, the b of on-the-spot low-pressure side is actual thinks a phase.
Can find out after high-pressure side A, B have connected instead by the vectogram of Fig. 2, Fig. 5 and Fig. 6, the position of actual low-pressure side A, B, C just in time differs 60 degree with the position of original low-pressure side A, B, C.
When following test data provides test result be:
The advanced C ' of B ' 30 ° of C 30 ° before the advanced A ' of A 30 ° of B ultrasonic
The advanced A ' of C ' 150 ° of C 150 ° before the advanced B ' of A 150 ° of B ultrasonic
The advanced B ' of A ' 270 ° of C 270 ° before the advanced C ' of A 270 ° of B ultrasonic
Wireless nuclear phase 30 ° of phase differences, the vectogram of 30 ° of phase differences is shown in Fig. 7, can find out that the position of actual low-pressure side A, B, C just in time differs 30 degree with the position of original low-pressure side A, B, C after high-pressure side polarity group is not corresponding by the vectogram of Fig. 3 and Fig. 5, see Fig. 4, its determination methods is occur this phase angle in nuclear phase process, cause because main transformer high-pressure side polarity group is inconsistent, survey the polarity group situation of upper level power supply main transformer, adjust for actual conditions;
Two, method of adjustment:
I, when actual nuclear phase data are: during the advanced A ' of A 0 °, the advanced B ' of the advanced C ' of B ' 120 °, C 240 °, A 240 ° before B ultrasonic, C ' 0 ° before B ultrasonic, the advanced C ' of the advanced A ' of C 120 °, A 120 °, A ' 240 ° before B ultrasonic, during the advanced B ' of C 0 °, A phase phase sequence is correct, and B, C phase phase sequence is incorrect, and its Adjusted Option is: B, C exchange;
II, when actual nuclear phase data are: the advanced A ' of A 240 °, B ' 0 ° before B ultrasonic, the advanced B ' of the advanced C ' of C 120 °, A 120 °, C ' 240 ° before B ultrasonic, the advanced A ' of C 0 °, the advanced C ' of A 0 °, before B ultrasonic during A ' 120 ° during the advanced B ' of C 240 °, B phase phase sequence is correct, A, C phase phase sequence is incorrect, and its Adjusted Option is: A, C exchange;
III, when actual nuclear phase data are: the advanced A ' of A 120 °, the advanced B ' of the advanced C ' of B ' 240 °, C 0 °, A 0 ° before B ultrasonic, C ' 120 ° before B ultrasonic, the advanced C ' of the advanced A ' of C 240 °, A 240 °, A ' 0 ° before B ultrasonic, the advanced B ' of C 120 °, C phase phase sequence is correct, and A, B phase phase sequence is incorrect, and its Adjusted Option is: A, B exchange;
IV, when actual nuclear phase data are: the advanced A ' of A 120 °, the advanced C ' of B ' 120 °, C 120 ° before B ultrasonic, the advanced B ' of A 240 °, the advanced C ' of the advanced A ' of C ' 240 °, C 240 °, A 0 ° before B ultrasonic, A ' 0 ° before B ultrasonic, the advanced B ' of C 0 °, A, B, C phase phase sequence is all incorrect, and its Adjusted Option is: C ' adjusts to B phase position, A ' adjusts to C phase position, and B ' adjusts to A phase position;
V, when actual nuclear phase data are: the advanced A ' of A 240 °, the advanced C ' of B ' 240 °, C 240 ° before B ultrasonic, the advanced B ' of A 0 °, the advanced C ' of the advanced A ' of C ' 0 °, C 0 °, A 120 ° before B ultrasonic, A ' 120 ° before B ultrasonic, the advanced B ' of C 120 °, A, B, C phase phase sequence is all incorrect, and its Adjusted Option is: C ' adjusts to A phase position, A ' adjusts to B phase position, and B ' adjusts to C phase position;
VI, when actual nuclear phase data are: the advanced A ' of A 60 °, the advanced C ' of B ' 60 °, C 60 ° before B ultrasonic, the advanced B ' of A 180 °, the advanced A ' of C ' 180 °, C 180 ° before B ultrasonic, the advanced C ' of A 300 °, the advanced B ' of A ' 300 °, C 300 ° before B ultrasonic, A, B, C three-phase phase-sequence is all incorrect, and its Adjusted Option is: low-pressure side cannot adjust, main transformer high voltage side lead-in, AB intermodulation, BC intermodulation, CA intermodulation, fixed by the actual conditions at scene;
VII, when actual nuclear phase data are: the advanced A ' of A 30 °, the advanced B ' of the advanced C ' of B ' 30 °, C 30 °, A 150 ° before B ultrasonic, C ' 150 ° before B ultrasonic, the advanced C ' of the advanced A ' of C 150 °, A 270 °, A ' 270 ° before B ultrasonic, the advanced B ' of C 270 °, A, B, C phase phase sequence is all incorrect, and its Adjusted Option is: cause because main transformer high-pressure side polarity group is inconsistent, surveys the polarity group situation of upper level main transformer.
After actual wireless high-voltage nuclear phase end-of-job, as run into abnormal data, can be judged by actual data contrast high-voltage nuclear phase phase sequence adjustment form of testing.
1, citing further illustrates below: provide test result and Adjusted Option for following test data
The advanced C ' of B ' 60 ° of C 60 ° before the advanced A ' of A 60 ° of B ultrasonic
The advanced A ' of C ' 180 ° of C 180 ° before the advanced B ' of A 180 ° of B ultrasonic
The advanced B ' of A ' 300 ° of C 300 ° before the advanced C ' of A 300 ° of B ultrasonic
Wireless nuclear phase produces 60 ° of phase differences, and conclusion and Adjusted Option illustrate:
(1) judge:
This phase angle is there is in nuclear phase process, low-pressure side cannot adjust, survey power supply phase upper level main transformer high voltage side lead-in supply line AB, whether which has connect instead BC or CA, then by high-pressure side AB, BC or CA intermodulation, due to high-pressure side AB, after BC or CA intermodulation, the phase sequence of low-pressure side can be contrary with former phase sequence, so need full substation facilities secondary side current, Voltage Cortrol, through-flow logical pressure test checks, the AB of all outlets, BC or CA intermodulation adjusts, step-down voltage cable adjustment used, in addition to No. 1 main transformer, No. 2 main transformer hexagonal figure test, high and low pressure side is protected, observing and controlling, metering current voltage phasor-diagram checks, the protection of 35KV interval, observing and controlling, metering phasor diagram check, all 10KV outgoing line interval protections, observing and controlling, metering phasor diagram check, implementation detail is fixed by the actual conditions at scene.
(2) citing Adjusted Option:
In fig. 8, the 10KV power supply of 110KV transportation electric substation is opened pasture respectively and is become the 10KV power supply of confession and 35KV turns round and look at the high 10KV power supply ring network power supply nuclear phase becoming confession with 110KV, wherein open the 10KV power phase that pasture becomes confession to check correctly with 110KV, and turn round and look at the high 10KV power supply nuclear phase becoming confession with 35KV and occur as above diagram data.
Owing to opening the 10KV power supply looped network success that pasture becomes confession, so problem does not appear at 110KV transportation electric substation itself, so inspection of the scene of a crime 35KV Gu Gao electric substation with 110KV.Surveys 35 kilovolts turns round and look at the high 35KV power supply become and opens Gu 380 circuit because of power grid construction stage inlet wire phase sequence, PE, causes the outlet of 10KV side to have angular deviation, and this 10KV outlet can not be carried out cyclization with other outlet and get in touch with and adjust electricity.
Open Gu 380 circuit: through becoming zero span line from a pasture, check by bar, find that opening a Gu 380 line phase-sequence detection erroneous point appears between 85#-86# bar, mainly receives anti-during the take-up of A, C phase phase sequence.Therefore plan between Gu 380 circuit 85#-86# bar, A, C phase sequence to be exchanged.
High turn round and look at 482 circuits: high turn round and look at 482 circuits mainly can cyclization in order to ensure to turn round and look at the high high-pressure side that becomes, high 482 circuits that turn round and look at are left a mistake uncorrected and made the best of it, and become 35KV height turn round and look in 482 outgoing line cabinets A, C is anti-phase in the high village.So secondary, 35KV height Gu 482 outgoing line cabinet rear decks need only be become in the high village outlet cable A, C phase is spun around.(adjust above, when recovering power transmission, must uprise Gu 482 septal line trackside and bus bar side carries out nuclear phase Gu is high, incorrect must continuation adjusts Gao Zhuan side cable)
35KV bus voltage transformer: because primary voltage is negative-phase sequence, after this adjustment, must become terminal box inside in 35KV pressure and secondary side phase sequence be exchanged.Recovery adjustment can be carried out by pile crown in scene on protection, measurement busbar voltage switch dawn.(adjust above, phasing must be carried out by through-flow test, guarantee that on kilowatt-hour meter screen, protection supervisory equipment, the corresponding actual pressure of A/B/C becomes A/B/C phase.）
35KV Ce Ge road inlet wire secondary current: although 301,302 differential currents can correct operation, for ensureing the accuracy of failure judgement, must adjust A, C phase on the protection device; 301,302 standby electric currents are the correctness ensureing multiple pressure, at the enterprising Row sum-equal matrix of backup protection equipment terminal board; 301,302 observing and controlling electric currents can change back head in terminal box inside; 301,302 metering currents change back head on kilowatt-hour meter screen; 380,482 prepared auto restart electric currents are because adopting a phase separately, do not need adjustment; 380,482 metering currents change back head on protection screen changes; 380,482 observing and controlling electric currents change back head in terminal box inside.(above all adjustment, all 35KV line electric current windings must carry out phasing by through-flow test, and etc. after power transmission on-load, carry out check checking by pincerlike phase meter; Kilowatt-hour meter data arrange calibration personnel on site to survey by client service center.）
35KV2# change used: because into positive phase sequence has been made negative-phase sequence in high-pressure side, for ensureing that three phase power load equipment works well, the outlet of 35KV2# change used two-way also must by anti-phase for A, C phase adjustment, cable A, C phase can be exchanged in ac panel 2# inlet wire side by the road wherein to ac panel, to outdoor power case (power supply station), please power supply station of power supply station side from Row sum-equal matrix.
10KV1# change used: after the adjustment of high-pressure side A, C phase sequence, low-pressure side A, C phase sequence must be exchanged equally, and cable A, C phase is exchanged in ac panel 1# inlet wire side by scene.
10KV voltage: 10KV primary voltage is now positive phase sequence, now doubts in installation process and carried out adjustment, specifically, for ensureing the rear correctness of adjustment, planning to become in 10KV pressure connecting line A, C phase pressure being faded to terminal board cashier's office in a shop and exchanging.(adjust above, phasing must be carried out by through-flow test, guarantee that on kilowatt-hour meter screen, protection supervisory equipment, the corresponding actual pressure of A/B/C becomes A/B/C phase.)
10KV outlet (containing capacitor 100 interval) electric current: 10KV outlet observing and controlling, metering current share first-class change secondary winding, is shielded by observing and controlling and is forwarded to kilowatt-hour meter screen, plans to change back head by A, C phase on observing and controlling screen; Although 10KV outlet protective current can precision maneuver, for ensureing that phase selection is correct, plan adjusts on the protection device, A, C phase is exchanged.(above all adjustment, all 10KV outlets and capacitor must carry out phasing by through-flow test, and etc. after power transmission on-load, carry out check checking by pincerlike phase meter; Kilowatt-hour meter data are arranged to hand over table personnel on site to survey by client service center.)
The each outlet of 10KV: Jiang Nan line 141 is cable outlet, plans A, C phase to be adjusted at 10KV inside switch cabinet; Secondary cinemas 142 are overhead outlet, plan to carry out A, C adjustment in 1# bar zero span line side, because it and transportation Jiang Nong line 125 are got in touch with, must carry out nuclear phase at its contact point place, if incorrect, in side, contact point place by line outage, must do integrated regulation to A/B/C; Lu Zhuan line 145 is overhead wire, plan in 145 circuit 1# bar large size sides, A, C to be adjusted, because of it transport work 122 respectively with transportation, a pasture plum piles up neatly 188 and gets in touch with, therefore all must to carry out nuclear phase in two contact points place, if nuclear phase is incorrect, in side, place, two contact points by line outage, integrated regulation should be done to circuit A/B/C; Turning round and look at high 146 circuits is overhead outlet, plans to carry out A, C adjustment in 1# bar zero span line side, because it and pasture poplar Yu line 187 are got in touch with, must carry out nuclear phase, if incorrect, in side, contact point place by line outage, must do integrated regulation to A/B/C at its contact point place.
2, test result and Adjusted Option is provided for following test data
The advanced C ' of B ' 30 ° of C 30 ° before the advanced A ' of A 30 ° of B ultrasonic
The advanced A ' of C ' 150 ° of C 150 ° before the advanced B ' of A 150 ° of B ultrasonic
The advanced B ' of A ' 270 ° of C 270 ° before the advanced C ' of A 270 ° of B ultrasonic
Wireless nuclear phase produces 60 ° of phase differences, and conclusion and Adjusted Option illustrate:
(1) judge:
There is this phase angle in nuclear phase process, cause because main transformer high-pressure side polarity group is inconsistent, survey the polarity group situation of upper level power supply main transformer, adjust for actual conditions.
(2) citing Adjusted Option:
The two-way power phase that certain electrical network 35KV Lou Zhuan becomes is as implied above, there is the situation that cannot be incorporated into the power networks.
35KV Lou Zhuan become two-way power supply into:
One route 220KV Shen Xing change is powered through Shen Lou line 422, and Shen Lou line 422 runs on Shen Xing and becomes 35KV II section of bus, and it is not Y/Y/ Δ mode that 220kV Shen Xing becomes 2# main transformer wiring master, 3# main transformer wiring group (YNa0yn0+d11)
One Bian Jinggao Hangzhoupro, route 220KV height village line, 476 turns of Lou Hang lines 321 are powered.High Hangzhoupro line 476 runs on the high village and becomes 35KV I section of bus, and the high village becomes 1# main transformer wiring group (YNa0yn0+d11)
Because 220kV Shen Xing change 2# main transformer wiring master is not Y/Y/ Δ mode, to become 1# main transformer wiring group (YNa0yn0+d11) inconsistent with 220kV Shen Xing No. 3 main transformers and the high village, cause electrical network 35kV Lou Zhuan become, Hang Jia Pu electric substation can not cyclization adjust electricity, each must power failure adjusts electricity, brings inconvenience to good service.
After the actual investigation of the data after nuclear phase and scene, advise that Shen Lou line 422 is become 35KV II section of bus (422 interval) reconfiguration by Shen Xing powers to 35KV III section of bus (432 interval), to solve the inconsistent problem of main transformer wiring group thus to realize the function that electricity is adjusted in cyclization.
Claims (1)
1. judge and adjust a method for wireless nuclear phase, it comprises the following steps:
One, deterministic process
When following test data provides test result be:
The advanced C ' of B ' 60 ° of C 60 ° before the advanced A ' of A 60 ° of B ultrasonic
The advanced A ' of C ' 180 ° of C 180 ° before the advanced B ' of A 180 ° of B ultrasonic
The advanced B ' of A ' 300 ° of C 300 ° before the advanced C ' of A 300 ° of B ultrasonic,
Wireless nuclear phase produces 60 ° of phase differences, its determination methods is: occur this phase angle in nuclear phase process, low-pressure side cannot adjust, survey power supply phase upper level main transformer high voltage side lead-in supply line AB, whether which has connect instead BC or CA, then by high-pressure side AB, BC or CA intermodulation, due to high-pressure side AB, after BC or CA intermodulation, the phase sequence of low-pressure side can be contrary with former phase sequence, so need full substation facilities secondary side current, Voltage Cortrol, through-flow logical pressure test checks, the AB of all outlets, BC or CA intermodulation adjusts, step-down voltage cable adjustment used, in addition to No. 1 main transformer, No. 2 main transformer hexagonal figure test, high and low pressure side is protected, observing and controlling, metering current voltage phasor-diagram checks, the protection of 35KV interval, observing and controlling, metering phasor diagram check, all 10KV outgoing line interval protections, observing and controlling, metering phasor diagram check, implementation detail is fixed by the actual conditions at scene,
When following test data provides test result be:
The advanced C ' of B ' 30 ° of C 30 ° before the advanced A ' of A 30 ° of B ultrasonic
The advanced A ' of C ' 150 ° of C 150 ° before the advanced B ' of A 150 ° of B ultrasonic
The advanced B ' of A ' 270 ° of C 270 ° before the advanced C ' of A 270 ° of B ultrasonic
Wireless nuclear phase produces 30 ° of phase differences, and its determination methods is occur this phase angle in nuclear phase process, causes because main transformer high-pressure side polarity group is inconsistent, surveys the polarity group situation of upper level power supply main transformer, adjusts for actual conditions;
Two, method of adjustment:
I, when actual nuclear phase data are: during the advanced A ' of A 0 °, the advanced B ' of the advanced C ' of B ' 120 °, C 240 °, A 240 ° before B ultrasonic, C ' 0 ° before B ultrasonic, the advanced C ' of the advanced A ' of C 120 °, A 120 °, A ' 240 ° before B ultrasonic, during the advanced B ' of C 0 °, A phase phase sequence is correct, and B, C phase phase sequence is incorrect, and its Adjusted Option is: B, C exchange;
II, when actual nuclear phase data are: the advanced A ' of A 240 °, B ' 0 ° before B ultrasonic, the advanced B ' of the advanced C ' of C 120 °, A 120 °, C ' 240 ° before B ultrasonic, the advanced A ' of C 0 °, the advanced C ' of A 0 °, before B ultrasonic during A ' 120 ° during the advanced B ' of C 240 °, B phase phase sequence is correct, A, C phase phase sequence is incorrect, and its Adjusted Option is: A, C exchange;
III, when actual nuclear phase data are: the advanced A ' of A 120 °, the advanced B ' of the advanced C ' of B ' 240 °, C 0 °, A 0 ° before B ultrasonic, C ' 120 ° before B ultrasonic, the advanced C ' of the advanced A ' of C 240 °, A 240 °, A ' 0 ° before B ultrasonic, the advanced B ' of C 120 °, C phase phase sequence is correct, and A, B phase phase sequence is incorrect, and its Adjusted Option is: A, B exchange;
IV, when actual nuclear phase data are: the advanced A ' of A 120 °, the advanced C ' of B ' 120 °, C 120 ° before B ultrasonic, the advanced B ' of A 240 °, the advanced C ' of the advanced A ' of C ' 240 °, C 240 °, A 0 ° before B ultrasonic, A ' 0 ° before B ultrasonic, the advanced B ' of C 0 °, A, B, C phase phase sequence is all incorrect, and its Adjusted Option is: C ' adjusts to B phase position, A ' adjusts to C phase position, and B ' adjusts to A phase position;
V, when actual nuclear phase data are: the advanced A ' of A 240 °, the advanced C ' of B ' 240 °, C 240 ° before B ultrasonic, the advanced B ' of A 0 °, the advanced C ' of the advanced A ' of C ' 0 °, C 0 °, A 120 ° before B ultrasonic, A ' 120 ° before B ultrasonic, the advanced B ' of C 120 °, A, B, C phase phase sequence is all incorrect, and its Adjusted Option is: C ' adjusts to A phase position, A ' adjusts to B phase position, and B ' adjusts to C phase position;
VI, when actual nuclear phase data are: the advanced A ' of A 60 °, the advanced C ' of B ' 60 °, C 60 ° before B ultrasonic, the advanced B ' of A 180 °, the advanced A ' of C ' 180 °, C 180 ° before B ultrasonic, the advanced C ' of A 300 °, the advanced B ' of A ' 300 °, C 300 ° before B ultrasonic, A, B, C three-phase phase-sequence is all incorrect, and its Adjusted Option is: low-pressure side cannot adjust, main transformer high voltage side lead-in, AB intermodulation, BC intermodulation, CA intermodulation, fixed by the actual conditions at scene;
VII, when actual nuclear phase data are: the advanced A ' of A 30 °, the advanced B ' of the advanced C ' of B ' 30 °, C 30 °, A 150 ° before B ultrasonic, C ' 150 ° before B ultrasonic, the advanced C ' of the advanced A ' of C 150 °, A 270 °, A ' 270 ° before B ultrasonic, the advanced B ' of C 270 °, A, B, C phase phase sequence is all incorrect, and its Adjusted Option is: cause because main transformer high-pressure side polarity group is inconsistent, surveys the polarity group situation of upper level main transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673665.9A CN104505863B (en) | 2014-11-21 | 2014-11-21 | A method for determining and adjusting wireless phase detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673665.9A CN104505863B (en) | 2014-11-21 | 2014-11-21 | A method for determining and adjusting wireless phase detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104505863A true CN104505863A (en) | 2015-04-08 |
| CN104505863B CN104505863B (en) | 2017-05-10 |
Family
ID=52947593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410673665.9A Expired - Fee Related CN104505863B (en) | 2014-11-21 | 2014-11-21 | A method for determining and adjusting wireless phase detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104505863B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001533A (en) * | 2018-07-11 | 2018-12-14 | 国网湖南省电力有限公司 | Switchgear is to phase method |
| 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 |
| CN110514911A (en) * | 2019-08-28 | 2019-11-29 | 西安热工研究院有限公司 | A kind of system and method for power plant high voltage bus power supply nuclear phase |
| CN113311229A (en) * | 2021-07-02 | 2021-08-27 | 山东钢铁股份有限公司 | Method for testing power phase of GIS cabinet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533050A (en) * | 2009-04-13 | 2009-09-16 | 南京源纳科技有限公司 | Wireless high-voltage digital phase-checking instrument |
| CN101943719A (en) * | 2010-09-09 | 2011-01-12 | 上海希明电气技术有限公司 | Shared-frequency asynchronous phase-checking method |
| CN103713193A (en) * | 2010-05-20 | 2014-04-09 | 杨建堂 | Application meted for determining voltage phase and checking phase by using cosine law |
-
2014
- 2014-11-21 CN CN201410673665.9A patent/CN104505863B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533050A (en) * | 2009-04-13 | 2009-09-16 | 南京源纳科技有限公司 | Wireless high-voltage digital phase-checking instrument |
| CN103713193A (en) * | 2010-05-20 | 2014-04-09 | 杨建堂 | Application meted for determining voltage phase and checking phase by using cosine law |
| CN101943719A (en) * | 2010-09-09 | 2011-01-12 | 上海希明电气技术有限公司 | Shared-frequency asynchronous phase-checking method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001533A (en) * | 2018-07-11 | 2018-12-14 | 国网湖南省电力有限公司 | Switchgear is to phase method |
| 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 |
| CN110514911A (en) * | 2019-08-28 | 2019-11-29 | 西安热工研究院有限公司 | A kind of system and method for power plant high voltage bus power supply nuclear phase |
| CN110514911B (en) * | 2019-08-28 | 2021-08-24 | 西安热工研究院有限公司 | System and method for generating power plant high-voltage bus power supply phase checking |
| CN113311229A (en) * | 2021-07-02 | 2021-08-27 | 山东钢铁股份有限公司 | Method for testing power phase of GIS cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104505863B (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Elmore | Protective relaying: theory and applications | |
| Tang | Smart grid management & visualization: Smart power management system | |
| CN110514911B (en) | System and method for generating power plant high-voltage bus power supply phase checking | |
| CN102510010B (en) | Method for checking and testing relay protection vector before operation of newly-built transformer station | |
| CN102279323B (en) | Secondary accurate phasing method for intelligent transformer station | |
| US9714974B2 (en) | Device for detecting open phase of connection line of standby transformer in nuclear power plant by using Rogowski coil | |
| CN104505863A (en) | A method for determining and adjusting wireless phase detection | |
| CN110098602A (en) | A kind of Guangdong power system isolating device and method | |
| KR20110081008A (en) | Fault detecting and predicting apparatus for metering out fit | |
| CN106324397A (en) | Ultrahigh-voltage direct-current transmission project converter transformer alternating-current loop system on-site inspection method | |
| CN203376434U (en) | A current transformer polarity verification apparatus | |
| CN209543688U (en) | A kind of substation's experience system | |
| CN110221115A (en) | The determination method, apparatus and equipment of unbalanced earth fault capacitance current | |
| CN102244379B (en) | Method, device and system for controlling and protecting serial capacitors | |
| CN107831378B (en) | Device and method for detecting compensation effect of arc suppression coil | |
| CN104155627B (en) | Error characteristic detection method of extra high voltage capacitive voltage transformer | |
| Nair et al. | IEC 61850 enabled automatic bus transfer scheme for primary distribution substations | |
| CN108089144A (en) | Electronic current mutual inductor field calibration system and method | |
| CN113325236A (en) | Power transmission phase checking method for double-bus double-section wiring GIS cabinet power supply | |
| CN105510714A (en) | Intelligent substation pressure transmitter secondary automatic phase tester | |
| CN103050897A (en) | Operation method for interruption-free exchange of fault recorder | |
| Chothani et al. | Advancement in Power Transformer Infrastructure and Digital Protection | |
| CN207992363U (en) | Singlephase earth fault circuit monitoring system | |
| CN105896342A (en) | Mobile low-voltage bypass transfer equipment | |
| Shirkovets et al. | High-frequency recording system for transient processes in 6–110 kV electrical networks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20181121 |