CN103267904B - Nuclear-phase method when a kind of cable is installed - Google Patents
Nuclear-phase method when a kind of cable is installed Download PDFInfo
- Publication number
- CN103267904B CN103267904B CN201310151307.7A CN201310151307A CN103267904B CN 103267904 B CN103267904 B CN 103267904B CN 201310151307 A CN201310151307 A CN 201310151307A CN 103267904 B CN103267904 B CN 103267904B
- Authority
- CN
- China
- Prior art keywords
- cable
- phase
- knob
- nuclear
- far end
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000000819 phase cycle Methods 0.000 claims description 21
- 230000001939 inductive effect Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention relates to nuclear-phase method when a kind of cable is installed, step is that (1) the work on the console panel of servicing unit is first started warning light and beats bright by both sides, and both sides' warning light is bright mutually; (2) confirm to start now setup test A phase cable; (3) inform that near-end side's personnel's ground connection is complete; (4) near-end side informs that the wiring of far end party megger is complete; (5) far end party informs that near-end side can start operation; (6) near-end side first screws the corresponding pressing against knob of nuclear phase state, starts to pressurize to cable.The present invention is when nuclear phase, utilize the copper shield of cable itself as the telecommunication media of cable two ends staff, owing to being work at cable two ends, no matter with or without wireless communication signals, cable shield can serve as communication media in stube cable two ends certainly, and avoiding passing on step by step easily occurs mistake, if intermediate link has a staff understand unclear or represent unclear, mistake is pass on, and can cause the mistake in work, even can bring danger to staff.
Description
Technical field
The invention belongs to technical field of electric power construction, relate to Check Phase Sequence when power cable is installed, nuclear-phase method when especially a kind of cable is installed.
Background technology
Electric system is three-phase AC electrical supply system, and normal have a fixing phase differential when running between its three-phase, and three-phase current has fixing sequencing, and people is for after providing phase sequence, and the electrical connection of all devices all must according to this order.The effect of cable line in electric system is coupled together by the electrical equipment at certain part two ends in system, this just requires that the phase place of the terminal device that cable line is often connected is identical, such as A phase cable connects the electrical equipment at two ends also must be A phase, if A phase cable near-end connects A phase, what far-end connected is B phase equipment, is setup error.If threephase cable phase sequence setup error, the low-pressure side phase sequence mistake too of its correspondence when energising can be caused to run, cause likely causing motor to reverse during low pressure side joint threephase motor, also can cause when this part equipment and other charging equipments side by side or cyclization time, produce very large electric current, huge electric current can cause electrical equipment to damage, and even blast causes personal injury.Therefore, when cable is installed, Check Phase Sequence is very important.
Resistance to earth method is the most traditional nuclear-phase method, and operation steps is: 1, A relatively resistance surveyed by cable near-end personnel preparation megger, informs far-end staff with mobile phone or intercom; 2, far-end personnel are by a certain phase cable grounding, inform that near-end personnel can start operation, and personnel are away from cable end; 3, near-end personnel megger test A relatively resistance: if resistance to earth is 0, then determine that the cable of opposite end ground connection is A phase, at this moment stop test, and inform that opposite end has stopped test, opposite end phase sequence correctly, far-end personnel make marks A phase cable; If resistance to earth is very large, be not then A phase, and inform that opposite end has stopped test, opposite end phase sequence mistake, far-end personnel are first this phase cable discharge, then gravity treatment wireline test.
Whole wireline test process need cable two ends staff links up at any time, and communication mode is mainly mobile phone or intercom, and the other side informed in staff's language.But along with the development of modern city, high building stands in great numbers, current cable machinery is mainly all placed in the basement of skyscraper, and when airtight basement is installed, usually do not have wireless communication signals, mobile phone cannot use.The multiple intercom of general use is as intermediate link now, and middle multiple staff passs on step by step, and the staff that could realize cable two ends communicates mutually.The defect done like this is: 1, passing on step by step easily occurs mistake, if intermediate link has a staff understand unclear or express unclear, error understanding or pass on, can cause the mistake in work, bring danger even can to other staff.2, pass on step by step and greatly reduce work efficiency, lengthen working hours.3, complete one work labor cost can increase, especially during long distance because intercom speech range is limited, more to increase manpower.
Summary of the invention
The object of the invention is to the weak point overcoming original technology, nuclear-phase method when providing a kind of cable to install, when can realize installing cable, effective help is played in Check Phase Sequence work, help staff's efficient communication at cable two ends, mutually confirm the duty of the other side by the way of acousto-optic hint.
The technical scheme that technical solution problem of the present invention adopts is:
Nuclear-phase method when a kind of cable is installed, step is:
(1) the work on the console panel of servicing unit is first started warning light and beats bright by both sides, and both sides' warning light is bright mutually;
(2) the A phase relay indicating light knob of respective console panel is opened by both sides, and first open A by near-end side, far end party also opens A after receiving signal.Confirm to start now setup test A phase cable;
(3) far end party is by a certain phase cable grounding, screws nuclear phase state respective knob, informs that near-end side's personnel's ground connection is complete;
(4) near-end side is by megger wiring at A phase cable, connects, and screws nuclear phase state respective knob, informs that the wiring of far end party megger is complete;
(5) far end party withdraws safe distance to, screws nuclear phase state respective knob, informs that near-end side can start operation;
(6) near-end side first screws the corresponding pressing against knob of nuclear phase state, starts, to cable pressurization, to start following situation occurs:
Situation 1: if resistance to earth is 0, then determine that the cable of far end party ground connection is A phase, at this moment stops pressurization, screw the correct knob of phase sequence of nuclear phase state, and screw nuclear phase state respective knob, informs that far end party has stopped pressurization; Far end party, cable discharge, is done A phase this phase cable and is marked, and screws the complete button of nuclear phase state phase nuclear phase;
Situation 2: if resistance to earth is very large, then determine that the cable of far end party ground connection is not A phase, at this moment stops pressurization, screws nuclear phase state phase sequence mistake knob, and screw stopping pressurizing button; " far end party this cable discharge, then changes a phase cable, repeats above-mentioned steps, proceeds A phase cable nuclear phase, until find A phase cable.
(7) repeat above-mentioned steps, carry out B phase cable nuclear phase.
And, described servicing unit is arranged panel, machine plate, panel is provided with power switch, loudspeaker, our console panel, the other side's console panel and nuclear phase state set of knobs, machine plate is provided with electric wave carrier and power supply, servicing unit adopts clamping-type inductive coupler and cable under test to be socketed by high frequency cable, this servicing unit uses the screen layer of cable under test as communication media, utilizes electric wave carrier load signal to communicate.
And, described nuclear phase state set of knobs comprises eight knobs, is respectively: the complete knob of cable grounding, the complete knob of megger wiring, personnel withdraw safe distance knob to, pressurization starts knob, the correct knob of phase sequence, phase sequence mistake knob, pressurization stops knob, discharged knob.
Advantage of the present invention and good effect are:
1, the present invention is when nuclear phase, utilize the copper shield of cable itself as the telecommunication media of cable two ends staff, owing to being work at cable two ends, no matter with or without wireless communication signals, cable shield can serve as communication media in stube cable two ends certainly, and avoiding passing on step by step easily occurs mistake, if intermediate link has a staff understand unclear or represent unclear, mistake is pass on, and can cause the mistake in work, even can bring danger to staff.
2, the invention solves traditional cable nuclear phase phase intercommunication Problems existing, reach no matter which kind of external condition, the staff at cable two ends can be allowed directly to communicate, intermediate link is not needed to pass on, and make cable two ends personnel can see the instant duty that opposite end personnel are current, show with sound and light signal, accomplish effective prompting, in order to avoid make mistakes.
Accompanying drawing explanation
Fig. 1 is the panel construction schematic diagram of servicing unit of the present invention;
Fig. 2 is principle of work schematic diagram of the present invention.
Embodiment:
For content of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows.It should be noted that, the present embodiment is descriptive, is not determinate, can not limit protection scope of the present invention thus.
Nuclear phase assisting device when first describing that cable of the present invention is installed, this servicing unit arranges panel 2, machine plate 7, panel is provided with power switch 6, loudspeaker 1, our console panel 3, the other side's console panel 5 and nuclear phase state set of knobs 4, machine plate is provided with electric wave carrier and power supply, servicing unit adopts clamping-type inductive coupler 9 and cable under test 10 to be socketed by high frequency cable 8, and concrete structure is see Fig. 1,2.This servicing unit uses the screen layer of cable under test as communication media, electric wave carrier load signal is utilized to communicate, upper strata connects a set of servicing unit when checking cable phase sequence, the staff at cable two ends respectively holds a set of respectively, plays the effect of the other side's duty that intercoms mutually, informs.Described nuclear phase state set of knobs comprises eight knobs, is respectively: the complete knob of cable grounding, the complete knob of megger wiring, personnel withdraw safe distance knob to, pressurization starts knob, the correct knob of phase sequence, phase sequence mistake knob, pressurization stops knob, discharged knob.
This servicing unit is two that match, and uses respectively to the staff at cable two ends.
Near-end staff is responsible for the distant cable of megger, and opposite end staff is responsible for cable grounding; A, B, C that each side's console panel is indicated indicate the three-phase of cable, and three letter belows are corresponding LED light, and corresponding yellow, green, the red led of difference.
Nuclear-phase method when a kind of cable is installed, step is:
1, the work on console panel is first started warning light and beats bright by both sides, and both sides' warning light is bright mutually;
2, the A phase relay indicating light knob of respective console panel is opened by both sides, and first open A by near-end side, far end party also opens A after receiving signal.Confirm to start now setup test A phase cable;
3, far end party is by a certain phase cable grounding, screws nuclear phase state respective knob, informs that near-end side's personnel's ground connection is complete;
4, near-end side is by megger wiring at A phase cable, connects, and screws nuclear phase state respective knob, informs that the wiring of far end party megger is complete;
5, far end party withdraws safe distance to, screws nuclear phase state respective knob, informs that near-end side can start operation;
6, near-end side first screws the corresponding pressing against knob of nuclear phase state, starts, to cable pressurization, to start following situation occurs:
Situation 1: if resistance to earth is 0, then determine that the cable of far end party ground connection is A phase, at this moment stops pressurization, screw the correct knob of phase sequence of nuclear phase state, and screw nuclear phase state respective knob, informs that far end party has stopped pressurization; Far end party, cable discharge, is done A phase this phase cable and is marked, and screws the complete button of nuclear phase state phase nuclear phase;
Situation 2: if resistance to earth is very large, then determine that the cable of far end party ground connection is not A phase, at this moment stops pressurization, screws nuclear phase state phase sequence mistake knob, and screw stopping pressurizing button; " far end party this cable discharge, then changes a phase cable, repeats above-mentioned steps, proceeds A phase cable nuclear phase, until find A phase cable.
Repeat above-mentioned steps, carry out B phase cable nuclear phase.
Do not select copper core in cable to be because need it to do electric test, and when making electric test, due to the He Ne laser of carrier communication apparatus, do not affect the use of screen layer.
Claims (2)
1. nuclear-phase method when cable is installed, is characterized in that: step is:
(1) the work on the console panel of servicing unit is first started warning light and beats bright by both sides, and both sides' warning light is bright mutually;
(2) the A phase relay indicating light knob of respective console panel is opened by both sides, and first open A by near-end side, far end party also opens A after receiving signal, confirms to start now setup test A phase cable;
(3) far end party is by a certain phase cable grounding, screws nuclear phase state respective knob, informs that near-end side's personnel's ground connection is complete;
(4) near-end side is by megger wiring at A phase cable, connects, and screws nuclear phase state respective knob, informs that the wiring of far end party megger is complete;
(5) far end party withdraws safe distance to, screws nuclear phase state respective knob, informs that near-end side can start operation;
(6) near-end side first screws the corresponding pressing against knob of nuclear phase state, starts, to cable pressurization, to start following situation occurs:
Situation 1: if resistance to earth is 0, then determine that the cable of far end party ground connection is A phase, at this moment stops pressurization, screw the correct knob of phase sequence of nuclear phase state, and screw nuclear phase state respective knob, informs that far end party has stopped pressurization; Far end party, cable discharge, is done A phase this phase cable and is marked, and screws the complete button of nuclear phase state phase nuclear phase;
Situation 2: if resistance to earth is very large, then determine that the cable of far end party ground connection is not A phase, at this moment stops pressurization, screws nuclear phase state phase sequence mistake knob, and screw stopping pressurizing button; Far end party this cable discharge, then changes a phase cable, repeats above-mentioned steps, proceeds A phase cable nuclear phase, until find A phase cable;
(7) repeat above-mentioned steps, carry out B phase cable nuclear phase;
Described servicing unit is arranged panel, machine plate, panel is provided with power switch, loudspeaker, our console panel, the other side's console panel and nuclear phase state set of knobs, machine plate is provided with electric wave carrier and power supply, servicing unit adopts clamping-type inductive coupler and cable under test to be socketed by high frequency cable, this servicing unit uses the screen layer of cable under test as communication media, utilizes electric wave carrier load signal to communicate.
2. nuclear-phase method when cable according to claim 1 is installed, it is characterized in that: described nuclear phase state set of knobs comprises eight knobs, is respectively: the complete knob of cable grounding, the complete knob of megger wiring, personnel withdraw safe distance knob to, pressurization starts knob, the correct knob of phase sequence, phase sequence mistake knob, pressurization stops knob, discharged knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310151307.7A CN103267904B (en) | 2013-04-27 | 2013-04-27 | Nuclear-phase method when a kind of cable is installed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310151307.7A CN103267904B (en) | 2013-04-27 | 2013-04-27 | Nuclear-phase method when a kind of cable is installed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103267904A CN103267904A (en) | 2013-08-28 |
| CN103267904B true CN103267904B (en) | 2015-08-05 |
Family
ID=49011543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310151307.7A Active CN103267904B (en) | 2013-04-27 | 2013-04-27 | Nuclear-phase method when a kind of cable is installed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103267904B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569629A (en) * | 2015-02-03 | 2015-04-29 | 孙超 | Phase sequence tester of low-voltage cables |
| CN106226608A (en) * | 2016-08-02 | 2016-12-14 | 国家电网公司 | A kind of cable phase sequence determinator |
| CN107831376A (en) * | 2017-12-06 | 2018-03-23 | 国网宁夏电力有限公司宁东供电公司 | Intelligent nuclear phase meter and Intelligent nuclear phase method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2938053B1 (en) * | 1998-07-30 | 1999-08-23 | 西日本電気システム株式会社 | Cable check device and cable checker |
| CN2916644Y (en) * | 2006-07-13 | 2007-06-27 | 江苏省电力公司苏州供电公司 | Intelligent nuclear phase instrument |
| CN201532437U (en) * | 2009-11-13 | 2010-07-21 | 徐天锡 | Cable number checking and phase checking device |
| CN101937028A (en) * | 2009-06-30 | 2011-01-05 | 武汉思威科技投资有限公司 | Wireless nuclear phase instrument |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08248083A (en) * | 1995-03-13 | 1996-09-27 | Toshiba Corp | Three phase main circuit testing apparatus |
-
2013
- 2013-04-27 CN CN201310151307.7A patent/CN103267904B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2938053B1 (en) * | 1998-07-30 | 1999-08-23 | 西日本電気システム株式会社 | Cable check device and cable checker |
| CN2916644Y (en) * | 2006-07-13 | 2007-06-27 | 江苏省电力公司苏州供电公司 | Intelligent nuclear phase instrument |
| CN101937028A (en) * | 2009-06-30 | 2011-01-05 | 武汉思威科技投资有限公司 | Wireless nuclear phase instrument |
| CN201532437U (en) * | 2009-11-13 | 2010-07-21 | 徐天锡 | Cable number checking and phase checking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103267904A (en) | 2013-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103269035B (en) | Nuclear phase assisting device when a kind of cable is installed | |
| US8344904B2 (en) | Signal processing in downhole equipment | |
| CN103267904B (en) | Nuclear-phase method when a kind of cable is installed | |
| CN103884924A (en) | Low-voltage cable nuclear phase device | |
| CN105137226A (en) | Line grounding state detection and positioning device | |
| CN206740913U (en) | A kind of insulating bar experiment auxiliary device | |
| CN104865471A (en) | Low voltage live-line cable pair check meter | |
| CN213275920U (en) | Portable measurement secondary circuit line inspection device | |
| CN104316736B (en) | Combined insulated lead for switch cabinet power-frequency and alternating-current withstand voltage test | |
| CN202837413U (en) | Electric power line phase-verification device | |
| CN102064896A (en) | 2M communication channel loopback detection method | |
| CN204989315U (en) | Threephase cable phase place checking apparatus | |
| CN103197127A (en) | Grounding step voltage detecting method and grounding step voltage detecting device of high-voltage equipment of switch gear room of converting station | |
| CN206640093U (en) | A kind of multi-functional current safe connection equipment | |
| CN202064902U (en) | Remote monitoring system for pumping unit | |
| CN202563012U (en) | Large-scale power station grounding net impedance parameter measuring device | |
| CN105277847A (en) | Fault positioning system | |
| CN204945279U (en) | A kind of mixing console for Electrical Power Line Parameter test | |
| CN203352018U (en) | Convenient wiring and removing device for buried transformer substation | |
| CN104590087A (en) | Electric power engineering start-up debugging car | |
| CN204835434U (en) | Distribution network overhead line interval for use | |
| CN216622661U (en) | Insulation monitoring and checking device capable of simulating direct current mutual channeling | |
| CN103746198A (en) | Electricity testing and ground connection all-in-one rod | |
| CN107505552A (en) | The lower shelf depreciation high-frequency signal extraction element of steep-front impact and measuring system | |
| CN202404171U (en) | Voltage testing switching equipment for multi-core cables |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |