CN210443915U - Circuit breaker handcart - Google Patents

Abstract

The utility model relates to a circuit breaker handcart, which comprises a handcart frame, a plurality of vacuum circuit breakers and a plurality of mutual inductors, wherein the vacuum circuit breakers and the mutual inductors are arranged on the handcart frame, each vacuum circuit breaker comprises a pole body with a first electrode end and a second electrode end and a first contact arm electrically connected with the first electrode end of the pole body, each mutual inductor comprises a mutual inductor body with a third electrode end and a fourth electrode end and a second contact arm electrically connected with the third electrode end of the mutual inductor body, and the first contact arm and the second contact arm respectively correspond to one of the two fixed contacts in the switch cabinet, the second electrode end of the pole body is electrically connected with the fourth electrode end of the mutual inductor body, the pole body is approximately horizontally arranged right above the mutual inductor body, the problems that a mutual inductor in the existing switch cabinet is inconvenient to install and maintain and the switch cabinet is large in size are solved.

Description

Circuit breaker handcart

Technical Field

The utility model relates to a cubical switchboard field specifically is to a circuit breaker handcart.

Background

The switch cabinet is an electrical device and mainly used for opening, closing, controlling and protecting the electrical device in the process of generating, transmitting, distributing and converting electric energy of an electric power system. The 10kV metal armored middle handcart type switch cabinet is a medium-voltage switch cabinet which is commonly used in the current market, is provided with four independent armored compartments, has complete functions, is complete in scheme, and is basic switch equipment in the power industry.

As shown in fig. 1, a circuit breaker handcart in an existing switch cabinet generally includes a handcart frame 10 ', a vacuum circuit breaker 11 ' installed on the handcart frame 10 ', a circuit breaker pole 110 ' of the vacuum circuit breaker 11 ' is vertically disposed, and a pair of contact arms 111 ' of each circuit breaker pole 110 ' is horizontally disposed up and down to cooperate with a fixed contact in the switch cabinet to realize switching. The volume that is limited to vacuum circuit breaker and current transformer, vacuum circuit breaker can only be installed to the space on the current circuit breaker handcart, and primary components such as current transformer then install in the cable chamber of cubical switchboard usually, when primary components such as installation and maintenance current transformer, constructor need bore and operate in the cubical switchboard, consequently, installation and maintenance are all inconvenient very, and there is the risk of electrocution, and because the cable chamber of cubical switchboard need have and is used for installing current transformer and relevant wiring space, consequently, the volume of current cubical switchboard can't be done for a short time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a circuit breaker handcart to solve the mutual-inductor installation in the current cubical switchboard and maintain inconvenient problem.

The specific scheme is as follows:

the utility model provides a circuit breaker handcart, includes the handcart frame and installs a plurality of vacuum circuit breaker and a plurality of mutual-inductor on the handcart frame, each vacuum circuit breaker all touches the arm including the utmost point post body that has first, second electrode end and the first electrode end electric connection's of utmost point post body first, each the mutual-inductor all touches the arm including the mutual-inductor body that has third, fourth electrode end and the second with the third electrode end electric connection's of mutual-inductor body second, just first touch arm and second touch the arm respectively with the cubical switchboard in one of them of two static contacts corresponding, the second electrode end of utmost point post body and the fourth electrode end electric connection of mutual-inductor body, utmost point post body is roughly level and lays directly over the mutual-inductor body.

Further, the mutual inductor body is roughly vertical and sets up on the handcart frame, the first electrode end of utmost point post body is located the tip of utmost point post body, first touch arm direct mount is on the first electrode end of utmost point post body, the third electrode end of mutual inductor body is located the middle part of mutual inductor body, the second touches arm direct mount on the second electrode end, and first touch arm and second touch arm upper and lower direction upper and lower level setting.

Further, the fourth electrode end of mutual-inductor is located the top surface of mutual-inductor body, the second electrode end of utmost point post body is located the middle part of utmost point post body, just the second electrode end is located the fourth electrode end directly over, lug connection is fixed between second electrode end and the fourth electrode end to realize electric connection, and make the mutual-inductor body support utmost point post body.

Furthermore, the electrodes of the second electrode end and the fourth electrode end extend to the outside of the respective body, and the electrodes and the body are fixed in an overlapping manner.

Furthermore, the lap joint parts of the second electrode end and the fourth electrode end are embedded with each other.

Furthermore, a lightning arrester is further installed on the handcart frame.

The utility model provides a circuit breaker handcart compares with prior art and has following advantage: the utility model provides a circuit breaker handcart is with vacuum circuit breaker's utmost point post body level transversely on the handcart frame for utmost point post body below forms the space of placing the mutual-inductor, thereby under the prerequisite that does not change current circuit breaker handcart volume, will regard as the vacuum circuit breaker and the mutual-inductor of main primary element and all install on the handcart frame, so that vacuum circuit breaker and mutual-inductor are whole to be shaken into, to shake out, realize that switch element cabinet installs, maintains and changes outward.

And because the volume of a handcart frame is not increased, the circuit breaker handcart can be directly suitable for the conventional 10kV metal armored middle handcart type switch cabinet, the whole handcart is shaken in and out, and the installation, maintenance and replacement of the switch element cabinet are realized. In addition, due to the fact that installation and wiring space of the mutual inductor are saved, the space of the cable chamber can be correspondingly reduced, the size of the switch cabinet can be correspondingly reduced, and the switch cabinet shell is simpler to design and assemble.

Drawings

Fig. 1 shows a schematic diagram of a prior art circuit breaker trolley.

Fig. 2 shows a schematic diagram of the circuit breaker handcart of the present invention.

Fig. 3 shows a cross-sectional view of the circuit breaker trolley of the present invention.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 2 and 3, the present embodiment provides a circuit breaker handcart, which includes a handcart frame 10, and a plurality of sets of vacuum circuit breakers 11 and transformers 12 mounted on the handcart frame 10, and in the present embodiment, the transformers 12 are taken as current transformers for illustration, but the present embodiment is not limited thereto, and may also be voltage transformers, and in the present embodiment, three sets of vacuum circuit breakers 11 and transformers 12 are provided to correspond to one of three-phase buses.

Specifically, the vacuum circuit breaker 11 includes the pole body 110 and the first contact arm 13, the first contact arm 13 is electrically connected to one of the electrode ends of the pole body 110, in this embodiment, for convenience of description, two electrode ends of the pole body 110 are respectively defined as a first electrode end 111 and a second electrode end 112, and the first contact arm 13 is electrically connected to the first electrode end 111.

The transformer 12 includes a transformer body 120 and a second contact arm 14, the second contact arm 14 is electrically connected to one electrode of the transformer body 120, in this embodiment, for convenience of description, two electrode of the transformer body 120 are respectively defined as a third electrode 121 and a fourth electrode 122, and the second contact arm 14 is electrically connected to the third electrode 121.

Referring to fig. 2 and 3, the post body 110 is substantially horizontally disposed on the handcart frame 10, so as to reserve a space for installing the transformer, the transformer body 120 is substantially vertically disposed, the post body 110 and the transformer body 120 are disposed side by side up and down, the first contact arm 13 and the second contact arm 14 are substantially horizontally disposed in the up-down direction, so as to correspond to one of two static contacts in the switch cabinet, and the second electrode end 112 of the post body 110 is electrically connected to the fourth electrode end 122 of the transformer body 120.

The mode that traditional vacuum circuit breaker's utmost point post body vertical setting was broken to the circuit breaker handcart in this embodiment, violently arrange vacuum circuit breaker's utmost point post body level on the handcart frame in, make utmost point post body below vacate the space that is used for installing the mutual-inductor, thereby under the prerequisite that does not change current circuit breaker handcart volume, vacuum circuit breaker and the mutual-inductor homoenergetic as main primary element can install on the handcart frame, so that vacuum circuit breaker and mutual-inductor realize wholly shaking in, shake out, realize the switch component cabinet and install outward, maintain and change.

And because the volume of the handcart frame 10 is not increased, the circuit breaker handcart can be directly suitable for the conventional 10kV metal armored middle handcart type switch cabinet, the integral swinging-in and swinging-out is realized, and the external installation, maintenance and replacement of the switch element cabinet are realized. In addition, because the installation and wiring space of the mutual inductor 12 is saved, the space of the cable chamber can be correspondingly reduced, the size of the switch cabinet can be reduced on the basis of the existing switch cabinet, and the design and the assembly of the switch cabinet shell can be simpler.

As a preferred embodiment of this embodiment, the fourth electrode end 122 of the transformer 12 is located on the top surface of the transformer body 120, the second electrode end 112 of the pole body 110 is located on the middle portion of the pole body 110, when the transformer 12 and the vacuum circuit breaker 11 are mounted on the handcart frame 10, the second electrode end 112 is located right above the fourth electrode end 122, and the second electrode end 112 and the fourth electrode end 122 are directly connected and fixed, so that the transformer body 120 also plays a certain supporting role in the pole body 110 while the second electrode end 112 and the fourth electrode end 122 are electrically connected.

The second electrode terminal 112 and the fourth electrode terminal 122 as in this embodiment are overlapped and fixedly connected to each other by bolts. That is, the electrodes of the second electrode end 112 and the fourth electrode end 122 extend to the outside of the respective bodies, and the two electrodes are fixed in an overlapping manner. Due to the direct fixed connection between the second electrode end 112 and the fourth electrode end 122, a cable between the second electrode end and the fourth electrode end is omitted, so that the assembly between the vacuum circuit breaker 11 and the mutual inductor 12 is facilitated, and the structure of the circuit breaker handcart is more compact.

Preferably, the overlapping portions of the second electrode terminal 112 and the fourth electrode terminal 122 are embedded with each other, and the electrodes of the two are semicircular in the overlapping portions as in the present embodiment, so as to increase the contact surface between the two while achieving simple overlapping fixation between the two.

As a preferred embodiment of this embodiment, the first electrode end 111 of the pole body 110 is located at the end of the pole body 110, the first contact arm 13 is directly installed at the first electrode end 111 of the pole body 110, the third electrode end 121 of the transformer body 120 is located at the middle of the transformer body 120, and the second contact arm 14 is directly installed at the second electrode end 121, because the first contact arm 13 and the first electrode end 111 are directly and fixedly connected, and the second contact arm 14 and the third electrode end 121 are directly and fixedly connected, a cable between the two is omitted, which can facilitate the assembly between the vacuum circuit breaker 11 and the transformer 12, and can make the structure of the circuit breaker handcart more compact.

As a preferred implementation manner of this embodiment, the arrester is further installed on the circuit breaker handcart (not shown in the figure), and the arrester is installed on the circuit breaker handcart by the circuit breaker handcart, and the arrester is rolled in and out along with the circuit breaker handcart as a whole, so that installation, maintenance and replacement outside the cabinet can be realized.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (6)

1. The utility model provides a circuit breaker handcart which characterized in that: including handcart frame and install a plurality of vacuum circuit breaker and a plurality of mutual-inductor on handcart frame, each vacuum circuit breaker all including have first, the second electrode end the utmost point post body and with utmost point post body's the first arm that touches of first electrode end electric connection, each the mutual-inductor all touches the arm including the mutual-inductor body that has third, fourth electrode end and the second with mutual-inductor body's third electrode end electric connection's second, just first touch arm and second touch the arm respectively with the cubical switchboard in one of them of two static contacts corresponding, the second electrode end of utmost point post body and mutual-inductor body's fourth electrode end electric connection, utmost point post body is roughly the level and lays directly over the mutual-inductor body.

2. The circuit breaker trolley of claim 1, wherein: the mutual inductor body is roughly vertical and sets up on the handcart frame, the first electrode end of utmost point post body is located the tip of utmost point post body, first arm direct mount that touches is served in the first electrode of utmost point post body, the third electrode end of mutual inductor body is located the middle part of mutual inductor body, the second touches arm direct mount and serves in the second electrode, and first arm and the second of touching touches the arm and sets up in the upper and lower direction level.

3. The circuit breaker trolley of claim 2, wherein: the fourth electrode end of mutual-inductor is located the top surface of mutual-inductor body, the second electrode end of utmost point post body is located the middle part of utmost point post body, just the second electrode end is located the fourth electrode end directly over, lug connection is fixed between second electrode end and the fourth electrode end to realize electric connection, and make the mutual-inductor body support utmost point post body.

4. The circuit breaker trolley of claim 3, wherein: the electrodes of the second electrode end and the fourth electrode end extend to the outside of the respective body, and the second electrode end and the fourth electrode end are fixed in an overlapping mode.

5. The circuit breaker trolley of claim 4, wherein: and the lap joint parts of the second electrode end and the fourth electrode end are embedded with each other.

6. The circuit breaker trolley of claim 1, wherein: and the handcart frame is also provided with a lightning arrester.

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