CN111487481A - Central nuclear phase trolley for switch cabinet and central switch cabinet - Google Patents
Central nuclear phase trolley for switch cabinet and central switch cabinet Download PDFInfo
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- CN111487481A CN111487481A CN202010380543.6A CN202010380543A CN111487481A CN 111487481 A CN111487481 A CN 111487481A CN 202010380543 A CN202010380543 A CN 202010380543A CN 111487481 A CN111487481 A CN 111487481A
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- 230000007246 mechanism Effects 0.000 claims abstract description 61
- 238000000819 phase cycle Methods 0.000 claims abstract description 21
- 238000004891 communication Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 241000722921 Tulipa gesneriana Species 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention provides a centrally-mounted nuclear phase trolley of a switch cabinet and a centrally-mounted switch cabinet, comprising: the system comprises a chassis vehicle and a receiving host; a locking mechanism and a handcart in-out mechanism are arranged in front of the chassis vehicle; the side part of the chassis truck is respectively provided with a chassis truck handcart grounding mechanism and a valve opening mechanism; the chassis vehicle handcart grounding mechanism and the grounding end connection handcart contact mechanism of the central switch cabinet are provided with three insulating support columns; the insulating support is connected with a contact arm, and the contact arm is connected with a plum blossom contact and a nuclear phase emitter; the nuclear phase emitter is connected with the receiving host in a wireless mode and sends the detected phase and phase sequence to the receiving host. The built-in nuclear phase trolley in the switch cabinet can ensure the safety of nuclear phase personnel, can quickly open a valve baffle of the circuit breaker, and realizes a device for determining the phase and the phase sequence of a bus side and an outlet side of the circuit breaker. Reliable contact between the nuclear phase trolley and the bus side and the outgoing line side is completed through shaking of the nuclear phase trolley, and the determination of the phases and the phase sequences of the two sides of the switch is completed.
Description
Technical Field
The invention relates to the field of electric power and electric live detection, in particular to a centrally-mounted nuclear phase trolley of a switch cabinet and a centrally-mounted switch cabinet.
Background
The central switch cabinet belongs to high-voltage distribution equipment, and is an indoor complete distribution equipment with highest working voltage of 3.6/7.2/12kV and three-phase AC 50Hz single-bus section system or double-bus section system. The device is used for receiving and distributing network power of 3.6-12kV, and carrying out control protection, monitoring and measurement on a power circuit. The central switch cabinet is mainly used for power plant, power transmission of small and medium-sized generators, power receiving and power transmission of secondary substation of power system, power distribution of industrial and mining enterprises and institutions, starting of large-scale high-voltage motors and the like.
In the use process of the central switch cabinet, the nuclear phase is an important work, and whether the phase and the phase sequence of two three-phase loops are the same or not is measured by a meter in the electrical operation of a power system. The nuclear phase is performed at parallel points before the middle-mounted switch cabinet is put into operation, so that short-circuit accidents caused by inconsistent phase sequence and phase are prevented, and normal power supply is influenced.
In the phase checking process, the safety of phase checking personnel needs to be ensured, so that the operating personnel and the charged part need to have enough safety distance to ensure the safety of the phase checking live working, and the phases and phase sequences of the bus side and the outlet side of the circuit breaker need to be determined, so how to realize the above mode is a technical problem to be solved urgently at present.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a centrally-mounted nuclear phase trolley for a switch cabinet, which comprises: the system comprises a chassis vehicle and a receiving host;
a locking mechanism and a handcart in-out mechanism are arranged in front of the chassis vehicle; the locking mechanism is fixed on the middle-mounted switch cabinet;
the side part of the chassis truck is respectively provided with a chassis truck handcart grounding mechanism and a valve opening mechanism;
the chassis vehicle handcart grounding mechanism is connected with the grounding end of the central switch cabinet;
the upper end of the chassis vehicle handcart grounding mechanism is connected with a handcart frame;
a handcart contact mechanism is arranged at the upper end of the chassis handcart grounding mechanism behind the handcart frame;
the handcart contact mechanism is provided with three insulating support columns; the insulating support is connected with a contact arm, and the contact arm is connected with a plum blossom contact and a nuclear phase emitter;
the nuclear phase emitter is connected with the receiving host in a wireless mode and sends the detected phase and phase sequence to the receiving host.
Preferably, the nuclear phase emitter is provided with six single-phase emitters;
each insulating support is provided with two contact arms in parallel;
each contact arm is connected with a single-phase emitter in a vertical state.
Preferably, three single-phase emitters set to the first height are configured as bus-side contact emitters;
three single-phase emitters set to the second height are configured as line-side emitters.
Preferably, the handcart frame is provided with an adjusting beam;
the adjusting beam is provided with a slideway, and the slideway is connected with three connecting plates;
the insulating support is connected with the slideway through a connecting plate.
Preferably, the bottom of the chassis vehicle is provided with a transverse adjusting mechanism and a longitudinal adjusting mechanism;
the transverse adjusting mechanism is provided with a transverse locking bolt, a transverse fixing section and a transverse extending end;
the transverse extending end is connected with the transverse fixing section in a pulling and inserting way; the transverse locking bolt locks the relative position between the transverse extending end and the transverse fixing section;
the longitudinal adjusting mechanism is provided with a longitudinal locking bolt, a longitudinal fixing section and a longitudinal extending end;
the longitudinal extending end is connected with the longitudinal fixing section in a pulling and inserting way; the longitudinal locking bolt locks the relative position between the longitudinally extending end and the longitudinal fixed section.
Preferably, the bottom of the chassis vehicle is also provided with rollers.
Preferably, the receiver host includes: the system comprises a control key, a data receiving module, a single chip microcomputer, a display screen, a wireless communication module and a voice playing module;
the control key, the data receiving module, the display screen, the wireless communication module and the voice playing module are respectively connected with the single chip microcomputer;
the singlechip acquires a control instruction input by a user through a control key and executes the control instruction;
the single chip microcomputer receives the phase and the phase sequence sent by the nuclear phase transmitter through the data receiving module and the wireless communication module;
the singlechip displays the received phase and phase sequence through a display screen; and broadcasting the phase and the phase sequence through a voice playing module.
Preferably, the nuclear phase emitter and the receiving host are in communication connection in a WIFI mode, or in communication connection in a Bluetooth mode, or in communication connection in an infrared mode.
Preferably, a fixed connecting plate is connected between the three insulating pillars of the handcart contact mechanism;
two ends of the fixed connecting plate are respectively connected with the handcart frame.
The invention also provides a central switch cabinet, comprising: the built-in nuclear phase dolly in cubical switchboard.
According to the technical scheme, the invention has the following advantages:
the built-in nuclear phase trolley in the switch cabinet can ensure the safety of nuclear phase personnel, can quickly open a valve baffle of the circuit breaker, and realizes a device for determining the phase and the phase sequence of a bus side and an outlet side of the circuit breaker. The central nuclear phase trolley of the 10KV switch cabinet can complete the knife gate valve of the 10KV voltage-grade armored movable central metal-enclosed switch cabinet breaker chamber, the nuclear phase trolley is reliably contacted with the bus side and the outgoing line side through the swinging of the nuclear phase trolley, and the phases and the phase sequences of the two sides of the switch are determined through the three-phase wireless nuclear phase device. The nuclear phase trolley is used, so that the operator has enough safety distance with the charged part in the nuclear phase test process, and the safety of nuclear phase live working is fundamentally improved; the nuclear phase trolley can realize the opening function of the valve baffle and complete the nuclear phase function in middle-placed cabinets of different manufacturers and different models with different voltage grades of 10KV, and has adjustable size and multiple functions; the device is portable, has reduced staff intensity of labour, has improved work efficiency, also for the promotion of power transmission work efficiency, reduces the power off time simultaneously, has produced intangible economic benefits.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a front view of a centrally-mounted nuclear phase trolley in a switch cabinet;
FIG. 2 is a side view of a centrally-mounted nuclear phase trolley in a switch cabinet;
FIG. 3 is a top view of a centrally-mounted nuclear phase trolley in a switch cabinet;
FIG. 4 is a perspective view of a centrally-mounted nuclear phase trolley in a switch cabinet;
FIG. 5 is a diagram of a receiving host.
Detailed Description
The invention provides a centrally-mounted nuclear phase trolley for a switch cabinet, which is shown in figures 1 to 5 and comprises: the chassis 1 and the receiving host 14;
a locking mechanism 2 and a handcart in-out mechanism 3 are arranged in front of the chassis vehicle; the locking mechanism 2 is fixed on the middle-mounted switch cabinet; the side part of the chassis vehicle is respectively provided with a chassis vehicle handcart grounding mechanism 6 and a valve opening mechanism 7; the chassis vehicle handcart grounding mechanism 6 is connected with the grounding end of the central switch cabinet; the upper end of the chassis vehicle handcart grounding mechanism 6 is connected with a handcart frame 8; a handcart contact mechanism is arranged at the upper end of the chassis handcart grounding mechanism 6 behind the handcart frame 8; the chassis vehicle handcart grounding mechanism 6 can ensure reliable grounding of the nuclear phase trolley in the process of shaking in and out, and ensure the personal safety of workers.
The locking mechanism 2 can be reliably fixed on the switch cabinet, and the nuclear phase trolley handcart can be conveniently shaken in and out through the in-out mechanism 3.
The handcart contact mechanism is provided with three insulating support columns 11; the insulating support 11 is connected with a contact arm 9, and the contact arm 9 is connected with a tulip contact 10 and a nuclear phase emitter 13; the nuclear phase transmitter 13 is connected to the receiver 14 in a wireless manner, and transmits the detected phase and phase sequence to the receiver 14. A fixed connecting plate 16 is also connected between the three insulating pillars 11 of the handcart contact mechanism; the two ends of the fixed connecting plate 16 are respectively connected with the handcart frame 8. The fixed tie plate 16 serves as a structural reinforcement.
It will be understood that when an element or layer is referred to as being "on," connected to, "or" coupled to "another element or layer, it can be directly on, connected or coupled to the other element or layer, and intervening elements or layers may also be present. In contrast, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Spatially relative terms such as "under …", "below", "lower", "above", "over", and the like, as may be used herein for ease of description, describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
In the invention, the nuclear phase emitter 13 is provided with six single-phase emitters; two contact arms 9 are arranged on each insulating support 11 in parallel; each contact arm 9 is connected with a single-phase emitter in a vertical state.
Configuring three single phase emitters set to a first height as bus side contact emitters; three single-phase emitters set to the second height are configured as line-side emitters.
In the phase checking process, a bus side contact emitter is an X, Y, Z emitter, an outlet side emitter is a U, V, W emitter, and the bus side contact emitter passes through X, U; y, V, respectively; z, W the phases are compared to determine the phase and phase sequence of the bus side and the outlet side of the circuit breaker. The six transmitting devices respectively transmit the sampled signals to the receiving host 14 through the transmitting devices.
The receiver host 14 includes: the system comprises a control key, a data receiving module, a single chip microcomputer, a display screen, a wireless communication module and a voice playing module; the control key, the data receiving module, the display screen, the wireless communication module and the voice playing module are respectively connected with the single chip microcomputer; the singlechip acquires a control instruction input by a user through a control key and executes the control instruction; the single chip microcomputer receives the phase and the phase sequence sent by the nuclear phase emitter 13 through the data receiving module and the wireless communication module; the singlechip displays the received phase and phase sequence through a display screen; and broadcasting the phase and the phase sequence through a voice playing module. The nuclear phase emitter 13 and the receiving host 14 are in communication connection in a WIFI mode, or in communication connection in a Bluetooth mode, or in communication connection in an infrared mode.
That is, the receiving host 14 performs corresponding processing according to the signal transmitted by the transmitter, and finally displays information such as voltage vector relation, phase angle and the like through the high resolution L CD, and meanwhile, the receiver plays the test result in voice.
As a preferred embodiment of the present invention, the handcart frame 8 is provided with an adjusting beam 12; the adjusting beam 12 is provided with a slideway, and the slideway is connected with three connecting plates 15; the insulating support 11 is connected to the slideway by a connecting plate 15. Therefore, the positions of the insulating support columns 11 can be adjusted, and the nuclear phase requirements of middle-mounted switch cabinets of different models can be met.
The bottom of the chassis is provided with a transverse adjusting mechanism 4 and a longitudinal adjusting mechanism 5; the transverse adjusting mechanism 4 is provided with a transverse locking bolt, a transverse fixing section and a transverse extending end; the transverse extending end is connected with the transverse fixing section in a pulling and inserting way; the transverse locking bolt locks the relative position between the transverse extending end and the transverse fixing section; the longitudinal adjusting mechanism 5 is provided with a longitudinal locking bolt, a longitudinal fixing section and a longitudinal extending end; the longitudinal extending end is connected with the longitudinal fixing section in a pulling and inserting way; the longitudinal locking bolt locks the relative position between the longitudinally extending end and the longitudinal fixed section.
Therefore, the transverse adjusting mechanism 4 and the longitudinal adjusting mechanism 5 can ensure that the four angles can be adjusted in design, so that the device is suitable for different sizes of 10KV switch cabinets.
The valve opening mechanism 7 can reliably open and close the valve baffle along with the inlet and outlet of the nuclear phase trolley. The valve opening mechanism 7 can adopt the existing scissor fork structure in a common mode in a central switch cabinet, a main stressed part bearing sleeve of the scissor fork enters a cavity of the push plate, the scissor fork is not pushed by the push plate any more, and the valve structure is completely opened, otherwise, the valve structure is closed.
The handcart frame 8 is reliably connected with the chassis vehicle 1, and the handcart frame 8 enables an operator to keep a sufficient safety distance from the electrified equipment, so that the safety of the operator is reliably ensured.
The bottom of the chassis vehicle is also provided with a roller 17 which can facilitate the movement of the built-in nuclear phase trolley in the switch cabinet.
As an embodiment of the invention, a contact arm 9 of a handcart contact mechanism is reliably connected with a fixed contact of a switch cabinet through a tulip contact 10; the insulating support 11 ensures that the bus side contact X, Y, Z emitter and the outlet side U, V, W emitter of the nuclear phase device meet the sufficient insulating degree, so that the safety of the equipment is ensured; the contact arm 9 and the tulip contact 10 can be replaced at will according to the size of the switch static contact, and can be suitable for static contacts with different current sizes, so that reliable contact with the switch static contact is ensured; the size adjustable mechanism 12 can be adjusted according to the spacing size of the three-phase contact arms 9, and can ensure transverse adjustment, so that the size adjustable mechanism is suitable for different 10KV switch cabinet sizes.
The invention also provides a central switch cabinet, comprising: the built-in nuclear phase dolly in cubical switchboard.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A built-in nuclear phase dolly in cubical switchboard, its characterized in that includes: the chassis comprises a chassis (1) and a receiving host (14);
a locking mechanism (2) and a handcart in-out mechanism (3) are arranged in front of the chassis vehicle; the locking mechanism (2) is fixed on the central switch cabinet;
the side part of the chassis truck is respectively provided with a chassis truck handcart grounding mechanism (6) and a valve opening mechanism (7);
the chassis vehicle handcart grounding mechanism (6) is connected with the grounding end of the central switch cabinet;
the upper end of a chassis vehicle handcart grounding mechanism (6) is connected with a handcart frame (8);
a handcart contact mechanism is arranged at the upper end of the chassis handcart grounding mechanism (6) behind the handcart frame (8);
the handcart contact mechanism is provided with three insulating support columns (11); the insulating support (11) is connected with a contact arm (9), and the contact arm (9) is connected with a plum blossom contact (10) and a nuclear phase emitter (13);
the nuclear phase transmitter (13) is connected with the receiving host (14) in a wireless mode and sends the detected phase and phase sequence to the receiving host (14).
2. The centrally-mounted nuclear phase trolley for switch cabinets of claim 1,
the nuclear phase emitter (13) is provided with six single-phase emitters;
two contact arms (9) are arranged on each insulating support column (11) in parallel;
each contact arm (9) is connected with a single-phase emitter in a vertical state.
3. The centrally-mounted nuclear phase trolley for switch cabinets of claim 2,
configuring three single phase emitters set to a first height as bus side contact emitters;
three single-phase emitters set to the second height are configured as line-side emitters.
4. The centrally-mounted nuclear phase trolley for switch cabinets of claim 2,
an adjusting beam (12) is arranged on the handcart frame (8);
the adjusting beam (12) is provided with a slideway, and the slideway is connected with three connecting plates (15);
the insulating support column (11) is connected with the slideway through a connecting plate (15).
5. The centrally located nuclear phase trolley according to claim 1 or 2,
the bottom of the chassis is provided with a transverse adjusting mechanism (4) and a longitudinal adjusting mechanism (5);
the transverse adjusting mechanism (4) is provided with a transverse locking bolt, a transverse fixing section and a transverse extending end;
the transverse extending end is connected with the transverse fixing section in a pulling and inserting way; the transverse locking bolt locks the relative position between the transverse extending end and the transverse fixing section;
the longitudinal adjusting mechanism (5) is provided with a longitudinal locking bolt, a longitudinal fixing section and a longitudinal extending end;
the longitudinal extending end is connected with the longitudinal fixing section in a pulling and inserting way; the longitudinal locking bolt locks the relative position between the longitudinally extending end and the longitudinal fixed section.
6. The centrally located nuclear phase trolley according to claim 1 or 2,
the bottom of the chassis vehicle is also provided with a roller (17).
7. The centrally located nuclear phase trolley according to claim 1 or 2,
the receiving host (14) comprises: the system comprises a control key, a data receiving module, a single chip microcomputer, a display screen, a wireless communication module and a voice playing module;
the control key, the data receiving module, the display screen, the wireless communication module and the voice playing module are respectively connected with the single chip microcomputer;
the singlechip acquires a control instruction input by a user through a control key and executes the control instruction;
the single chip microcomputer receives the phase and the phase sequence sent by the nuclear phase emitter (13) through the data receiving module and the wireless communication module;
the singlechip displays the received phase and phase sequence through a display screen; and broadcasting the phase and the phase sequence through a voice playing module.
8. The centrally-mounted nuclear phase trolley for switch cabinets of claim 7,
the nuclear phase emitter (13) and the receiving host (14) are in communication connection in a WIFI mode, or in communication connection in a Bluetooth mode, or in communication connection in an infrared mode.
9. The centrally located nuclear phase trolley according to claim 1 or 2,
a fixed connecting plate (16) is also connected between the three insulating pillars (11) of the handcart contact mechanism;
two ends of the fixed connecting plate (16) are respectively connected with the handcart frame (8).
10. A mid-mounted switchgear, comprising: the switchgear cabinet center-mounted nuclear phase trolley of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010380543.6A CN111487481A (en) | 2020-05-08 | 2020-05-08 | Central nuclear phase trolley for switch cabinet and central switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010380543.6A CN111487481A (en) | 2020-05-08 | 2020-05-08 | Central nuclear phase trolley for switch cabinet and central switch cabinet |
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| Publication Number | Publication Date |
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| CN111487481A true CN111487481A (en) | 2020-08-04 |
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| CN202010380543.6A Pending CN111487481A (en) | 2020-05-08 | 2020-05-08 | Central nuclear phase trolley for switch cabinet and central switch cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116449121A (en) * | 2023-03-30 | 2023-07-18 | 济南中能电力工程有限公司 | Nuclear phase trolley for high-voltage switch cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116449121A (en) * | 2023-03-30 | 2023-07-18 | 济南中能电力工程有限公司 | Nuclear phase trolley for high-voltage switch cabinet |
| CN116449121B (en) * | 2023-03-30 | 2024-03-26 | 济南中能电力工程有限公司 | Nuclear phase trolley for high-voltage switch cabinet |
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Application publication date: 20200804 |