CN111986953B - Primary and secondary deep fusion solid-sealed polar pole - Google Patents
Primary and secondary deep fusion solid-sealed polar pole Download PDFInfo
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- CN111986953B CN111986953B CN202010750077.6A CN202010750077A CN111986953B CN 111986953 B CN111986953 B CN 111986953B CN 202010750077 A CN202010750077 A CN 202010750077A CN 111986953 B CN111986953 B CN 111986953B
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- voltage sensor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
- H01H2033/66284—Details relating to the electrical field properties of screens in vacuum switches
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
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Abstract
The invention discloses a primary and secondary depth fusion embedded pole which comprises an insulating shell, wherein a vacuum arc extinguish chamber, a power taking device, a current detection device, a first voltage sensor, a second voltage sensor, a metal shielding net, a first conductive insert, a second conductive insert, a third conductive insert and a fourth conductive insert are arranged in the insulating shell; and the insulating shell is provided with an incoming line electric connector and an outgoing line electric connector. According to the invention, the power taking equipment, the current sensor and the voltage sensor can be integrated in the pole, the capacitance power taking function can be realized, the current condition can be monitored in real time, the two voltage sensors poured in the pole can monitor the voltage on two sides of the fracture of the vacuum arc-extinguishing chamber, the monitored voltage and current signals can be used for estimating the equipment state and supporting feeder automation, and the goal of deeply fusing the primary equipment and the secondary equipment in one step is realized.
Description
Technical Field
The invention relates to the field of medium-voltage switch equipment, in particular to a primary and secondary deep fusion embedded pole.
Background
Traditional vacuum circuit breaker need set up current sensor and voltage sensor in its outside in order to guarantee the steady operation of performance, because current sensor and voltage sensor are bulky, consequently lead to vacuum circuit breaker to occupy the great and cost-effective of volume. Meanwhile, the country greatly promotes the construction of a power distribution network, and in the process, the standardization and integration levels of primary and secondary power distribution equipment need to be improved, the operation level of the power distribution equipment is improved, and the urgent problems of compatibility, expansibility and the like of primary and secondary interfaces in power distribution automation construction are solved. The complete solid-sealed polar pole which meets the requirements of primary and secondary equipment deep fusion of distribution network intellectualization, complete integration, function modularization and exchange flexibility activation is lacked in the prior art.
Disclosure of Invention
The invention aims to provide a primary and secondary deep fusion embedded pole, which is used for solving at least one technical problem, and can integrate power-taking equipment, a current sensor and voltage sensors inside the pole, so that the capacitance power-taking function can be realized, the current condition can be monitored in real time, the two voltage sensors poured in the pole can monitor the voltage at two sides of a fracture of a vacuum arc-extinguishing chamber, and monitored voltage and current signals can be used for estimating the equipment state and supporting feeder automation, so that the goal of one-secondary deep fusion one-step in place is realized.
The embodiment of the invention is realized by the following steps:
the utility model provides a solid utmost point post that seals of a secondary degree of depth integration, includes insulating housing, the pouring has vacuum interrupter, gets electric installation, current detection device, first voltage sensor, second voltage sensor, metallic shield net, first electrically conductive inserts, the electrically conductive inserts of second, the electrically conductive inserts of third and the electrically conductive inserts of fourth in the insulating housing.
And the insulating shell is provided with an incoming line electric connector and an outgoing line electric connector.
In a preferred embodiment of the present invention, an outgoing conductive rod is further disposed in the insulating housing of the twice-depth-fused embedded pole.
The metal shielding net is connected to the outgoing line conducting rod.
The outgoing line conductive rod is connected with the outgoing line electric connector.
And the static end of the vacuum arc extinguish chamber is connected with the incoming line electric connector.
The current detection device adopts a current sensor.
The current sensor and the outgoing line conducting rod are coaxially arranged, and a current signal is led out through a secondary lead of the current sensor.
The current detection device can adopt a current transformer, and the arrangement mode is the same as that of the current sensor.
The electricity taking device adopts electricity taking PT.
One end of the power taking PT is connected with the metal shielding net through a power taking PT primary lead, and the other end of the power taking PT leads out a voltage signal through a power taking PT secondary lead.
The first voltage sensor is arranged around a fracture of the vacuum arc-extinguishing chamber, one end of the first voltage sensor is connected with the static end of the vacuum arc-extinguishing chamber through a primary lead of the first voltage sensor, and the other end of the first voltage sensor leads out a voltage signal through a secondary lead of the first voltage sensor.
The second voltage sensor is arranged around a fracture of the vacuum arc extinguish chamber, one end of the second voltage sensor is connected with the metal shielding net through a primary lead of the second voltage sensor, and the other end of the second voltage sensor leads out a voltage signal through a secondary lead of the second voltage sensor.
The technical effects are as follows: the first voltage sensor and the second voltage sensor can be operated in a closed loop mode, are oppositely arranged on two sides of the center of the solid-sealed polar pole, and simultaneously monitor phase voltage and zero sequence voltage signals on two sides of a fracture of the vacuum arc extinguish chamber; the current sensor has the capability of acquiring phase sequence current signals and zero sequence current signals, and can be compatible with a conventional current transformer to realize monitoring of the phase sequence signals and the zero sequence current signals.
In a preferred embodiment of the present invention, one end of the outgoing conductive rod of the twice-depth-fused embedded pole is connected to the movable end of the vacuum arc-extinguishing chamber through a flexible connection, and the other end of the outgoing conductive rod is connected to the outgoing electrical connector.
The technical effects are as follows: a circuit loop is implemented.
In a preferred embodiment of the present invention, the insulating casing of the twice-depth-fused embedded pole is further provided with an insulating pull rod.
One end of the insulating pull rod is connected with the movable end of the vacuum arc extinguish chamber, and the other end of the insulating pull rod extends out of the insulating shell.
The technical effects are as follows: for switching the circuit on or off.
In a preferred embodiment of the present invention, one end of the flexible connection of the two-time deep fusion embedded pole is connected to the movable end of the vacuum arc-extinguishing chamber and the insulating pull rod, and the other end of the flexible connection is connected to the outgoing line conductive rod.
The technical effects are as follows: and leading out the movable end of the vacuum arc extinguish chamber.
In a preferred embodiment of the present invention, the metal shielding net of the twice-depth-fused embedded pole extends from the outer side of the movable end of the vacuum arc-extinguishing chamber to the outer side of the insulating pull rod.
The technical effects are as follows: the electromagnetic interference problem after the depth of the primary and secondary equipment is fused is solved, and the overall electromagnetic interference resistance level of the equipment is improved.
In a preferred embodiment of the present invention, the secondary lead of the current sensor of the twice-depth-fused embedded pole leads out a current signal through the fourth conductive insert.
And the power-taking PT secondary lead leads out a voltage signal through the third conductive insert.
And the secondary lead of the second voltage sensor leads out a low-voltage end voltage signal through a second conductive insert.
And the secondary lead of the first voltage sensor leads out a high-voltage end voltage signal through the first conductive insert.
The technical effects are as follows: and the extraction of a voltage signal is realized.
In a preferred embodiment of the present invention, the power-taking device of the twice-depth-fused embedded pole is powered by a fully-insulated power voltage transformer interface provided on the insulating housing.
And a conductor is arranged in the insulating shell corresponding to the interface of the all-insulated power supply voltage transformer.
One end of the conductor is connected with the metal shielding net through a conductor lead, and the other end of the conductor is connected with a cable through an interface of the all-insulation power supply voltage transformer to lead out a voltage signal.
The technical effects are as follows: the power taking function is realized.
In a preferred embodiment of the present invention, an incoming end cap is disposed on a side of the insulating housing of the twice-depth-fused embedded pole, where the incoming electrical connector is disposed.
The inlet wire end cover is sealed through an inlet wire sealing element.
And the incoming line sealing element is compressed by an incoming line nut.
The technical effects are as follows: effectively reduces bounce and abrasion and increases environmental tolerance.
In a preferred embodiment of the present invention, an outlet end cap is disposed on a side of the insulating housing of the twice-depth-fused embedded pole, where the outlet electrical connector is disposed.
The outlet end cover is sealed through an outlet sealing element.
The outlet sealing piece is compressed by an outlet nut.
The technical effects are as follows: effectively reduces bounce and abrasion and increases environmental tolerance.
The embodiment of the invention has the beneficial effects that:
1. the integration level is high, the design is reasonable and completely practical, the integration and modularization level of the primary and secondary equipment is improved, the requirements of interface compatibility, expansibility and interchangeability of the primary and secondary equipment are met, and the goal of deep integration of the primary and secondary equipment in one step is achieved. The problem that the size of the vacuum circuit breaker is large due to the fact that the external current transformer and the external voltage transformer are used in the prior art can be avoided, and the problem that the current transformer and the voltage transformer are corroded due to long-term exposure in the air can be reduced.
2. Two voltage sensors are poured into the solid-sealed polar pole, loop closing operation can be performed, and phase voltage and zero sequence voltage signals on two sides of a fracture of the vacuum arc extinguish chamber are monitored simultaneously; the current sensor in the solid-sealed polar pole can monitor the current condition in real time, and monitored voltage and current signals can be used for predicting the equipment state and supporting feeder automation; the capacitor power acquisition PT poured in the solid-sealed polar pole can realize the capacitor power acquisition function, or the power acquisition function is realized by pouring a fully-insulated power supply voltage transformer interface.
3. Besides the fact that a current sensor can be poured into the solid-sealed pole to achieve phase sequence and zero sequence current signal monitoring, the solid-sealed pole is compatible with a conventional current transformer to achieve phase sequence and zero sequence current signal monitoring.
4. The inside electric field distributes evenly, does not have the potential difference between the internal each position of closing a floodgate back cover, and the voltage-sharing is effectual, and insulating ability is strong, and the secondary signal line adopts the insulating layer to add the shielding technique of novel semiconductor layer, combines effective ground connection mode, has solved the electromagnetic interference problem after the degree of depth of primary and secondary equipment fuses, has promoted the whole electromagnetic interference resistance level of equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
The primary and secondary deep fusion embedded pole of the invention is further described in detail with reference to the accompanying drawings and the detailed description.
FIG. 1 is a schematic diagram of a cross-sectional view of a primary and secondary deeply fused embedded pole of the present invention;
FIG. 2 is a schematic side sectional view of a primary and secondary deep fusion embedded pole of the present invention;
fig. 3 is a schematic diagram of a forward cross-sectional structure of the primary-secondary deep fusion embedded pole electricity-taking device connected with a cable through an interface of a fully insulated power supply voltage transformer.
In the figure: 1-an insulating housing; 2-a vacuum arc-extinguishing chamber; 3-a wire outlet sealing element; 4-an outlet end cover; 5-a wire outlet nut; 6-an outgoing line conducting rod; 7-an outlet electrical connector; 8-a current sensor; 9-current sensor secondary lead; 10-an insulating pull rod; 11-taking a PT secondary lead; 12-getting electricity PT; 13-taking a PT primary lead; 14-flexible connection; 15-incoming line seals; 16-an incoming line end cap; 17-a wire inlet nut; 18-wire electrical connections; 19-first voltage sensor primary lead; 20-a first voltage sensor; 21-first voltage sensor secondary lead; 22-second voltage sensor secondary lead; 23-a second voltage sensor; 24-a second voltage sensor primary lead; 25-a metallic shielding mesh; 26-all-insulated power supply voltage transformer interface; 27-a conductor; 28-conductor lead.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein can be arranged and designed in a wide variety of different configurations.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1 to 2, a first embodiment of the present invention provides a twice-depth fused embedded pole, which includes an insulating housing 1, and a vacuum arc-extinguishing chamber 2, a power-taking device, a current detection device, a first voltage sensor 20, a second voltage sensor 23, a metal shielding mesh 25, a first conductive insert, a second conductive insert, a third conductive insert, and a fourth conductive insert are cast in the insulating housing 1.
And the insulating shell 1 is provided with an incoming wire electric connector 18 and an outgoing wire electric connector 7.
In a preferred embodiment of the present invention, an outgoing conducting rod 6 is further disposed in the insulating housing 1 of the above-mentioned embedded pole with the second deep fusion.
The metal shielding net 25 and the outgoing line conducting rod 6 are connected by threads or welded.
The outgoing line conductive rod 6 is connected with the outgoing line electric connector 7.
The static end of the vacuum arc extinguish chamber 2 is connected with the incoming line electric connector 18.
The current sensor 8 and the outgoing line conducting rod 6 are coaxially arranged, and a current signal is led out through a secondary lead 9 of the current sensor.
The electricity taking device adopts electricity taking PT 12.
One end of the power taking PT12 is connected with the metal shielding net 25 through a power taking PT primary lead 13, and the other end of the power taking PT12 leads out a voltage signal through a power taking PT secondary lead 11.
The electricity taking PT12 is arranged on the opposite side of the current sensor 8.
The current detection device can adopt a current transformer, and the arrangement mode is the same as that of the current sensor 8.
The first voltage sensor 20 is arranged around a fracture of the vacuum arc-extinguishing chamber 2, one end of the first voltage sensor is connected with the static end of the vacuum arc-extinguishing chamber 2 through a first voltage sensor primary lead 19, and the other end of the first voltage sensor secondary lead 21 leads out a voltage signal.
The second voltage sensor 23 is arranged around a fracture of the vacuum arc-extinguishing chamber 2, one end of the second voltage sensor is connected with the metal shielding net 25 through a second voltage sensor primary lead 24, and the other end of the second voltage sensor secondary lead 22 leads out a voltage signal.
The technical effects are as follows: the first voltage sensor 20 and the second voltage sensor 23 can be operated in a loop closing mode, are oppositely arranged on two sides of the center of the solid-sealed pole, and simultaneously monitor phase voltage and zero sequence voltage signals on two sides of a fracture of the vacuum arc-extinguishing chamber 2; the current sensor 8 has the capability of acquiring phase sequence current signals and zero sequence current signals, and can be compatible with a conventional current transformer to realize monitoring of the phase sequence signals and the zero sequence current signals.
In a preferred embodiment of the present invention, one end of the outgoing conductive rod 6 of the twice deep fusion embedded pole is connected to the moving end of the vacuum arc-extinguishing chamber 2 through a flexible connection 14, and the other end is connected to the outgoing electrical connector 7.
The technical effects are as follows: a circuit loop is implemented.
In a preferred embodiment of the present invention, the insulating housing 1 of the twice deep-fused embedded pole is further provided with an insulating pull rod 10.
One end of the insulating pull rod 10 is connected with the movable end of the vacuum arc-extinguishing chamber 2, and the other end of the insulating pull rod extends out of the insulating shell 1.
The technical effects are as follows: for switching the circuit on or off.
In a preferred embodiment of the present invention, one end of the flexible connection 14 of the two-time deep fusion embedded pole is connected to the movable end of the vacuum arc-extinguishing chamber 2 and the insulating pull rod 10, and the other end is connected to the outgoing conductive rod 6.
The technical effects are as follows: the movable end of the vacuum arc extinguish chamber 2 is led out.
In the preferred embodiment of the present invention, the metal shielding net 25 of the twice-depth fused embedded pole extends from the outside of the movable end of the vacuum arc-extinguishing chamber 2 to the outside of the insulating pull rod 10.
The metal shielding net 25 is coaxially sleeved below the vacuum arc-extinguishing chamber 2 by adopting a cylindrical shape and is embedded in the insulating shell 1 through epoxy resin.
The technical effects are as follows: the electromagnetic interference problem after the depth of primary and secondary equipment is fused is solved, and the overall electromagnetic interference resistance level of the equipment is improved.
In a preferred embodiment of the present invention, the secondary lead 9 of the current sensor of the twice-depth-fused embedded pole leads out a current signal through a fourth conductive insert.
And the power-taking PT secondary lead 11 leads out a voltage signal through a third conductive insert.
The secondary lead 22 of the second voltage sensor leads out a low-voltage end voltage signal through a second conductive insert.
The secondary lead 21 of the first voltage sensor leads out a high-voltage end voltage signal through a first conductive insert.
The technical effects are as follows: and the extraction of a voltage signal is realized.
In a preferred embodiment of the present invention, an incoming end cap 16 is disposed on one side of the insulating housing 1 on which the incoming electrical connector 18 is disposed.
The inlet end cap 16 is sealed by an inlet seal 15.
The inlet seal 15 is pressed by an inlet nut 17.
The technical effects are as follows: effectively reduces bounce and abrasion and increases environmental tolerance.
In a preferred embodiment of the present invention, the side of the insulating housing 1 of the twice-depth fused embedded pole, on which the outgoing electrical connector 7 is disposed, is provided with an outgoing end cap 4.
The outlet end cover 4 is sealed by an outlet sealing element 3.
The outlet sealing element 3 is pressed tightly by an outlet nut 5.
The technical effects are as follows: effectively reduces bounce and abrasion and increases environmental tolerance.
Referring to fig. 2 to 3, a second embodiment of the present invention provides a twice-depth fused embedded pole, which includes an insulating housing 1, and a vacuum arc-extinguishing chamber 2, a power-taking device, a current detection device, a first voltage sensor 20, a second voltage sensor 23, a metal shielding mesh 25, a first conductive insert, a second conductive insert, a third conductive insert, and a fourth conductive insert are cast in the insulating housing 1.
And the insulating shell 1 is provided with an incoming wire electric connector 18 and an outgoing wire electric connector 7.
In a preferred embodiment of the present invention, an outgoing conductive rod 6 is further disposed in the insulating housing 1 of the twice-depth-fused embedded pole.
The metal shielding net 25 is connected to the outgoing line conductive rod 6.
The metal shielding net 25 and the outgoing line conducting rod 6 are connected by threads or welded.
The outgoing line conducting rod 6 is connected with the outgoing line electric connector 7.
The static end of the vacuum arc extinguish chamber 2 is connected with the incoming line electric connector 18.
The current sensor 8 and the outgoing conducting rod 6 are coaxially arranged, and a current signal is led out through a secondary lead 9 of the current sensor.
The current detection device can adopt a current transformer, and the arrangement mode is the same as that of the current sensor 8.
The first voltage sensor 20 is arranged around a fracture of the vacuum arc extinguish chamber 2, one end of the first voltage sensor is connected with a static end of the vacuum arc extinguish chamber 2 through a first voltage sensor primary lead 19, and the other end of the first voltage sensor secondary lead 21 is used for leading out a voltage signal.
The second voltage sensor 23 is arranged around a fracture of the vacuum arc-extinguishing chamber 2, one end of the second voltage sensor is connected with the metal shielding net 25 through a second voltage sensor primary lead 24, and the other end of the second voltage sensor secondary lead 22 leads out a voltage signal.
The technical effects are as follows: the first voltage sensor 20 and the second voltage sensor 23 can be operated in a loop closing mode, are oppositely arranged on two sides of the center of the solid-sealed pole, and simultaneously monitor phase voltage and zero sequence voltage signals on two sides of a fracture of the vacuum arc-extinguishing chamber 2; the current sensor 8 has the capability of acquiring phase sequence current signals and zero sequence current signals, and can be compatible with a conventional current transformer to realize monitoring of the phase sequence signals and the zero sequence current signals.
In a preferred embodiment of the present invention, one end of the outgoing conductive rod 6 of the twice deep fusion embedded pole is connected to the moving end of the vacuum arc-extinguishing chamber 2 through a flexible connection 14, and the other end is connected to the outgoing electrical connector 7.
The technical effects are as follows: a circuit loop is implemented.
In a preferred embodiment of the present invention, the insulating housing 1 of the twice deep-fused embedded pole is further provided with an insulating pull rod 10.
One end of the insulating pull rod 10 is connected with the movable end of the vacuum arc-extinguishing chamber 2, and the other end of the insulating pull rod extends out of the insulating shell 1.
The technical effects are as follows: for switching the circuit on or off.
In a preferred embodiment of the present invention, one end of the flexible connection 14 of the two-time deep fusion embedded pole is connected to the movable end of the vacuum arc-extinguishing chamber 2 and the insulating pull rod 10, and the other end is connected to the outgoing conductive rod 6.
The technical effects are as follows: the movable end of the vacuum arc extinguish chamber 2 is led out.
In the preferred embodiment of the present invention, the metal shielding net 25 of the twice-depth fused embedded pole extends from the outside of the movable end of the vacuum arc-extinguishing chamber 2 to the outside of the insulating pull rod 10.
The metal shielding net 25 is coaxially sleeved below the vacuum arc-extinguishing chamber 2 by adopting a cylindrical shape and is embedded in the insulating shell 1 through epoxy resin.
The technical effects are as follows: the electromagnetic interference problem after the depth of the primary and secondary equipment is fused is solved, and the overall electromagnetic interference resistance level of the equipment is improved.
In a preferred embodiment of the present invention, the secondary lead of the current sensor of the twice-depth-fused embedded pole leads out a current signal through the fourth conductive insert.
The secondary lead 22 of the second voltage sensor leads out a low-voltage end voltage signal through a second conductive insert.
The secondary lead 21 of the first voltage sensor leads out a high-voltage end voltage signal through a first conductive insert.
The technical effects are as follows: and the extraction of a voltage signal is realized.
In a preferred embodiment of the present invention, the power-taking device of the twice deep-fused embedded pole supplies power through a fully insulated power voltage transformer interface 26 disposed on the insulating housing 1.
And a conductor 27 is arranged in the insulating shell 1 corresponding to the fully-insulated power supply voltage transformer interface 26.
One end of the conductor 27 is connected with the metal shielding net 25 through a conductor lead 28, and the other end is connected with a cable through a fully insulated power supply voltage transformer interface 26 to lead out a voltage signal.
The technical effects are as follows: the power taking function is realized.
In a preferred embodiment of the present invention, an incoming end cap 16 is disposed on one side of the insulating housing 1 on which the incoming electrical connector 18 is disposed.
The inlet end cap 16 is sealed by an inlet seal 15.
The inlet seal 15 is pressed by an inlet nut 17.
The technical effects are as follows: effectively reduces bounce and abrasion and increases environmental tolerance.
In a preferred embodiment of the present invention, the side of the insulating housing 1 of the twice-depth fused embedded pole, on which the outgoing electrical connector 7 is disposed, is provided with an outgoing end cap 4.
The outlet end cover 4 is sealed by an outlet sealing element 3.
The outlet sealing element 3 is pressed tightly by an outlet nut 5.
The technical effects are as follows: effectively reduces bounce and abrasion and increases environmental tolerance.
The embodiment of the invention aims to protect a primary and secondary deep fusion embedded pole, which has the following effects:
1. the integration level is high, the design is reasonable and completely practical, the integration and modularization level of the primary and secondary equipment is improved, the requirements of interface compatibility, expansibility and interchangeability of the primary and secondary equipment are met, and the goal of deep integration of the primary and secondary equipment in one step is achieved. The problem that the size of the vacuum circuit breaker is large due to the fact that the external current transformer and the external voltage transformer are used in the prior art can be avoided, and the problem that the current transformer and the voltage transformer are corroded due to long-term exposure in the air can be reduced.
2. Two voltage sensors are poured in the solid-sealed polar pole, loop closing operation can be performed, and phase voltage and zero sequence voltage signals on two sides of a fracture of the vacuum arc extinguish chamber are monitored; the current sensor in the solid-sealed polar pole can monitor the current condition in real time, and monitored voltage and current signals can be used for predicting the equipment state and supporting feeder automation; the capacitor power acquisition PT poured in the solid-sealed polar pole can realize the capacitor power acquisition function, or the power acquisition function is realized by pouring a fully-insulated power supply voltage transformer interface.
3. Besides the fact that a current sensor can be poured into the solid-sealed pole to achieve phase sequence and zero sequence current signal monitoring, the solid-sealed pole is compatible with a conventional current transformer to achieve phase sequence and zero sequence current signal monitoring.
4. The inside electric field distributes evenly, does not have the potential difference between the internal each position of closing a floodgate back cover, and the voltage-sharing is effectual, and insulating ability is strong, adopts the insulating layer to add the shielding technique of novel semiconductor layer, combines effective ground connection mode, has solved the electromagnetic interference problem after the degree of depth of primary and secondary equipment fuses, has promoted the whole electromagnetic interference resistance level of equipment.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (8)
1. The primary and secondary deep fusion embedded pole is characterized by comprising an insulating shell, wherein a vacuum arc extinguish chamber, a power taking device, a current detection device, a first voltage sensor, a second voltage sensor, a metal shielding net, a first conductive insert, a second conductive insert, a third conductive insert and a fourth conductive insert are arranged in the insulating shell;
an incoming wire electric connector and an outgoing wire electric connector are mounted on the insulating shell;
the current detection device adopts a current sensor;
an outgoing line conducting rod is further arranged in the insulating shell;
the metal shielding net is connected to the outgoing line conducting rod;
the outgoing line conductive rod is connected with the outgoing line electric connector;
the static end of the vacuum arc extinguish chamber is connected with the wire inlet electric connector;
the current sensor and the outgoing line conducting rod are coaxially arranged, and a current signal is led out through a secondary lead of the current sensor;
the electricity taking device adopts electricity taking PT;
one end of the power-taking PT is connected with the metal shielding net through a power-taking PT primary lead, and the other end of the power-taking PT leads out a voltage signal through a power-taking PT secondary lead;
the first voltage sensor is arranged around a fracture of the vacuum arc-extinguishing chamber, one end of the first voltage sensor is connected with the static end of the vacuum arc-extinguishing chamber through a first voltage sensor primary lead, and the other end of the first voltage sensor leads out a voltage signal through a first voltage sensor secondary lead;
the second voltage sensor is arranged around a fracture of the vacuum arc extinguish chamber, one end of the second voltage sensor is connected with the metal shielding net through a primary lead of the second voltage sensor, and the other end of the second voltage sensor leads out a voltage signal through a secondary lead of the second voltage sensor;
the secondary lead of the current sensor leads out a current signal through a fourth conductive insert;
the power-taking PT secondary lead leads out a voltage signal through a third conductive insert;
the secondary lead of the second voltage sensor leads out a low-voltage end voltage signal through a second conductive insert;
and the secondary lead of the first voltage sensor leads out a high-voltage end voltage signal through the first conductive insert.
2. The embedded pole with twice depth fusion as claimed in claim 1,
one end of the outgoing line conducting rod is connected with the movable end of the vacuum arc-extinguishing chamber through flexible connection, and the other end of the outgoing line conducting rod is connected with the outgoing line electric connector.
3. The embedded pole with twice depth fusion as claimed in claim 2,
the insulating shell is also provided with an insulating pull rod;
one end of the insulating pull rod is connected with the movable end of the vacuum arc extinguish chamber, and the other end of the insulating pull rod extends out of the insulating shell.
4. The embedded pole with twice depth fusion as claimed in claim 3,
one end of the flexible connection is connected with the movable end of the vacuum arc extinguish chamber and the insulating pull rod, and the other end of the flexible connection is connected with the outgoing conducting rod.
5. The embedded pole with twice depth fusion as claimed in claim 3,
the metal shielding net extends from the outer side of the movable end of the vacuum arc extinguish chamber to the outer side of the insulating pull rod.
6. The embedded pole with twice depth fusion as claimed in claim 1,
the power taking device supplies power through a fully-insulated power supply voltage transformer interface arranged on the insulated shell;
a conductor is arranged in the insulating shell corresponding to the interface of the all-insulated power supply voltage transformer;
one end of the conductor is connected with the metal shielding net through a conductor lead, and the other end of the conductor is connected with a cable through an interface of the all-insulation power supply voltage transformer to lead out a voltage signal;
the current detection device adopts a current transformer.
7. The embedded pole with twice depth fusion as claimed in claim 1,
an incoming line end cover is arranged on one side, provided with the incoming line electric connecting piece, of the insulating shell;
the inlet wire end cover is sealed through an inlet wire sealing element;
and the incoming line sealing element is compressed by an incoming line nut.
8. The embedded pole with twice depth fusion as claimed in claim 1,
an outgoing line end cover is arranged on one side, provided with the outgoing line electric connecting piece, of the insulating shell;
the outlet end cover is sealed by an outlet sealing element;
the outlet sealing piece is compressed by an outlet nut.
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| CN202010750077.6A CN111986953B (en) | 2020-07-30 | 2020-07-30 | Primary and secondary deep fusion solid-sealed polar pole |
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| CN202010750077.6A CN111986953B (en) | 2020-07-30 | 2020-07-30 | Primary and secondary deep fusion solid-sealed polar pole |
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| CN111986953A CN111986953A (en) | 2020-11-24 |
| CN111986953B true CN111986953B (en) | 2022-08-12 |
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| CN114724885B (en) * | 2021-01-04 | 2024-03-15 | 南京南瑞继保电气有限公司 | Solid-sealed polar pole with built-in current-voltage sensor and electricity-taking capacitor and circuit breaker on pole |
| CN114242507B (en) * | 2021-12-15 | 2024-07-02 | 许昌豫盛昌电气股份有限公司 | High-voltage switch with built-in voltage sensor |
| CN115458361B (en) * | 2022-10-10 | 2023-05-02 | 宇光电气有限公司 | Depth primary and secondary fusion circuit breaker and production process thereof |
| CN116148521B (en) * | 2023-04-14 | 2023-07-14 | 烟台东方威思顿电气有限公司 | High-voltage metering device and depth fusion type polar column |
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