CN201740824U - Device for calibrating phase sequence of bus bar in central high-voltage switchgear - Google Patents

Device for calibrating phase sequence of bus bar in central high-voltage switchgear Download PDF

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Publication number
CN201740824U
CN201740824U CN2010202358437U CN201020235843U CN201740824U CN 201740824 U CN201740824 U CN 201740824U CN 2010202358437 U CN2010202358437 U CN 2010202358437U CN 201020235843 U CN201020235843 U CN 201020235843U CN 201740824 U CN201740824 U CN 201740824U
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CN
China
Prior art keywords
insulator
dial plate
voltage
phase sequence
fixed
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.)
Expired - Fee Related
Application number
CN2010202358437U
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Chinese (zh)
Inventor
钟循智
付志英
舒俊
刘红兵
梁启武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Iron and Steel Group Corp
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Wuhan Iron and Steel Group Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan Iron and Steel Group Corp filed Critical Wuhan Iron and Steel Group Corp
Priority to CN2010202358437U priority Critical patent/CN201740824U/en
Application granted granted Critical
Publication of CN201740824U publication Critical patent/CN201740824U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a device for calibrating the phase sequence of a bus bar in a central high-voltage switchgear. The device comprise a circuit testing unit, a voltage displaying unit and a fixed trolley, wherein the fixing trolley comprises a base and a dial plate fixed on the base; the voltage displaying unit is mounted on the dial plate; the circuit testing unit comprises six insulators fixed on the back side of the dial plate of the trolley; metal embedded parts provided with internal threads are pre-embedded at two ends of each insulator; a binding contact is mounted on the metal embedded part at the head part of the insulator, and the metal embedded part at the tail end thereof is fixed in the trolley body; the front part inside the insulator is hollow; a voltage-reduction resistor, a spring, a divider resistor and a coupling capacitor which are sequentially connected via conducting wires are mounted in an inner cylinder via the metal pre-embedded part provided with the internal threads; and lead wires are led out to wiring posts via an inner hole. The device of the utility model has the advantages of safe and reliable use and easy operation and is capable of displaying whether an upper power source and a lower power source are live and four groups of voltage data at one step, thus providing the direct-viewing basis for the judgment of the phase sequence.

Description

Middle high-tension switch cabinet busbar phase sequence verifying unit
Technical field
The utility model relates to the phase sequence verifying unit of charged detection high-tension electricity, particularly relates to middle high-tension switch cabinet busbar phase sequence verifying unit.
Background technology
Intermediate switchgear cabinet belongs to high voltage distribution installation, is mainly used in the generating plant, medium and small generator send electricity, being subjected to electricity, sending electricity of electric system secondary substation, the distribution of industrial and mineral enterprises and institutions, and the starting of large-scale high-tension motor etc.Normal adopt two sections bussed supplies standby each other, normally move I, II section bus divides the open shop compartment, is the fanout operation mode.In case certain section incoming power breaks down, by operation bus contact cabinet switch another section power supply to be drawn, the assurance system normally moves.Generalized case is that female connection cabinet switch dewclaw connects I section power supply, and lower claw connects II section power supply.After the switch closure, upper and lower power supply is communicated with through switch, so must guarantee the phase sequence unanimity of upper and lower power supply, can not misplace, otherwise the power supply short circuit fault takes place.Newly-built or often need to carry out paired running test (short time is arranged side by side by force) with Up Highway UHW when transforming 10kV electric substation to two sections.Two road power supplys are arranged side by side must to satisfy 3 conditions promptly: frequency, voltage magnitude, the consistent ability parallel connection of phase sequence.Domestic most inlet wire of substation power supply is all from national grid, and two sections supply frequencies are identical, and voltage magnitude also can meet the requirements in general, and phase sequence be become can be arranged side by side key.Existing hand-held has only simple survey electric installation and voltage display device, complicated operation, security, poor reliability, difficult judgment to installing (being commonly called as fishing rod type) mutually.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of safe and reliable, easy to use middle high-tension switch cabinet busbar phase sequence verifying unit.
For solving the problems of the technologies described above, the utility model is taked following technical scheme:
A kind of middle high-tension switch cabinet busbar phase sequence verifying unit, comprise and survey electric installation and voltage display device, survey between electric installation and the voltage display device and connect by electric wire, it is characterized in that, also comprise fixedly dolly 12, fixedly dolly 12 is made up of dial plate 121 and base 122, dial plate 121 is fixed on the base 122, described survey electric installation is made up of six insulators 1, be fixed on dolly dial plate 121 back sides, insulator 1 is divided into two rows, three of every rows are evenly distributed, on wherein corresponding, under two insulators 1 be one group, every group of insulator 1 is connected with an A.C. voltmeter 14 respectively, the pre-buried tapped metal embedded part 8 in insulator 1 two ends, head metal embedded part 8 is installed binding contact 9 by bolt 10, afterbody metal embedded part 8 be fixed on the car body 12, insulator 1 inner front portion is interior dummy status, the rear portion is the real core body of insulation in the insulator 1, dropping resistor 4, spring 2, divider resistance 5, coupling capacitance 3 usefulness leads 6 connect successively, all pass the pre-part 8 of metal and in the inner core of packing into, lead-in wire is all guided on the connection terminal 7 from endoporus.
Further, the A.C. voltmeter 17 that switch SA20 also is installed on the dial plate 121 and is attached thereto, the connection terminal of switch SA20 also link to each other with two groups of insulators, 1 intersection of both sides.
Further, described insulator 1 also comprises voltage sensor 11, and dial plate 121 also is equipped with electrification display 18, and voltage sensor 11 and electrification display 18 link together.
Further, the lead on described each insulator 1 upper connecting terminal 7 all is connected on the terminal board 21.
The beneficial effects of the utility model are, and are safe and reliable, simple to operate, once can show whether charged and 4 groups of voltage datas of upper and lower power supply, and phase sequence basis for estimation intuitively is provided.
Description of drawings
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is further described in detail.
Fig. 1 is the side view of an embodiment of the utility model.
Fig. 2 is the front elevation of an embodiment of the utility model.
Fig. 3 is the vertical view of an embodiment of the utility model.
Fig. 4 is the structural representation of the insulator of an embodiment of the utility model.
Fig. 5 is embodiment electrical schematic diagram of the utility model.
Embodiment
As shown in Figures 1 to 4, middle high-tension switch cabinet busbar phase sequence verifying unit comprises surveys electric installation and voltage display device and fixing dolly 12, fixedly dolly 12 is made up of dial plate 121 and base 122, dial plate 121 is fixed on the base 122, three A.C. voltmeters 14 are installed above, two electrification displays 18, a switch SA20, an A.C. voltmeter 17, switch SA20 links to each other with A.C. voltmeter 17, described survey electric installation is made up of six insulators 1, be fixed on dolly dial plate 121 back sides, insulator 1 is divided into two rows, three of every rows are evenly distributed, on wherein corresponding, under two insulators 1 be one group, every group of insulator 1 is connected with an A.C. voltmeter 14 respectively, each insulator 1 also is connected with the display lamp of an electrification display 18, electrification display 18 is installed on the dial plate 121, the connection terminal of switch SA20 also intersects with two groups of insulators 1 of both sides and links to each other, the pre-buried tapped metal embedded part 8 in insulator 1 two ends, head metal embedded part 8 is installed binding contact 9 by bolt 10, afterbody metal embedded part 8 be fixed on car body 12, insulator 1 inner front portion is interior dummy status, the rear portion is the real core body of insulation in the insulator 1, dropping resistor 4, spring 2, divider resistance 5, coupling capacitance 3, voltage sensor 11 usefulness leads 6 connect successively, all pass metal embedded part 8 and in the inner core of packing into, lead-in wire is all guided on the connection terminal 7 from endoporus, and the lead on the connection terminal 7 all is connected on the terminal board 21 then.
As shown in Figure 5, phase sequence is proofreaded dolly push after female connection cabinet, each 3 contact of its upper and lower part contacts the electrical principle wiring of formation accompanying drawing 5 with I, the II section 10KV busbar that mother joins cabinet respectively.Whether the electrification display of pass observation earlier shows is respectively all sent mutually.Observe reading on V1, V2, the V3 voltage table more respectively,, upper and lower phase sequence unanimity is described, otherwise the explanation phase sequence is made mistakes if each table all is shown as zero.Operate the SA switch again and observe reading on the V4 voltage table,, otherwise illustrate that phase sequence makes mistakes, can accurately judge the phase order relation in conjunction with the reading of 4 tables if each table shows that all non-vanishing expression is normal.How decision adjusts the wiring of incoming line cabinet cable end again, till meeting the requirements.
It should be noted last that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims (4)

1. middle high-tension switch cabinet busbar phase sequence verifying unit, comprise and survey electric installation and voltage display device, survey between electric installation and the voltage display device and connect by electric wire, it is characterized in that, also comprise fixedly dolly (12), fixedly dolly (12) is made up of dial plate (121) and base (122), dial plate (121) is fixed on the base (122), described survey electric installation is made up of six insulators (1), be fixed on dolly dial plate (121) back side, insulator (1) is divided into two rows, three of every rows are evenly distributed, on wherein corresponding, under two insulators (1) be one group, every group of insulator (1) is connected with an A.C. voltmeter (14) respectively, the pre-buried tapped metal embedded parts in insulator (1) two ends (8), head metal embedded part (8) is installed binding contact (9) by bolt (10), afterbody metal embedded part (8) be fixed on the car body (12), the inner front portion of insulator (1) is interior dummy status, insulator (1) interior rear wall is the real core body of insulation, dropping resistor (4), spring (2), divider resistance (5), coupling capacitance (3) connects successively with lead (6), all pass the pre-part of metal (8) and in the inner core of packing into, lead-in wire is all guided on the connection terminal (7) from endoporus.
2. middle high-tension switch cabinet busbar phase sequence verifying unit according to claim 1, it is characterized in that, dial plate also is equipped with switch SA(20 on (121)) and the A.C. voltmeter (17) that is attached thereto, switch SA(20) connection terminal also intersect and link to each other with two groups of insulators (1) of both sides.
3. according to claim 1 or 2, it is characterized in that, described insulator (1) also comprises voltage sensor (11), and dial plate (121) also is equipped with electrification display (18), and the display lamp of voltage sensor (11) and electrification display (18) links together.
4. according to claim 1 or 2, it is characterized in that the lead on described each insulator (1) upper connecting terminal (7) all is connected on the terminal board (21).
CN2010202358437U 2010-06-24 2010-06-24 Device for calibrating phase sequence of bus bar in central high-voltage switchgear Expired - Fee Related CN201740824U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202358437U CN201740824U (en) 2010-06-24 2010-06-24 Device for calibrating phase sequence of bus bar in central high-voltage switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202358437U CN201740824U (en) 2010-06-24 2010-06-24 Device for calibrating phase sequence of bus bar in central high-voltage switchgear

Publications (1)

Publication Number Publication Date
CN201740824U true CN201740824U (en) 2011-02-09

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Application Number Title Priority Date Filing Date
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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102854405A (en) * 2012-09-14 2013-01-02 中国一冶集团有限公司 Safe and efficient high-voltage nuclear phasing method
CN102854467A (en) * 2012-09-14 2013-01-02 中国一冶集团有限公司 Analog synchronization testing method for generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102854405A (en) * 2012-09-14 2013-01-02 中国一冶集团有限公司 Safe and efficient high-voltage nuclear phasing method
CN102854467A (en) * 2012-09-14 2013-01-02 中国一冶集团有限公司 Analog synchronization testing method for generator
CN102854467B (en) * 2012-09-14 2015-06-24 中国一冶集团有限公司 Analog synchronization testing method for generator

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110209

Termination date: 20160624

CF01 Termination of patent right due to non-payment of annual fee