CN221668733U - Compact type mixed terminal 145kV composite combined electrical appliance for mobile transformer - Google Patents

Abstract

The utility model relates to a compact hybrid terminal type 145kV composite combined electrical appliance for mobile transformer, comprising a three-phase tank type circuit breaker, a three-pole three-station isolating earthing switch, a three-way busbar, a bent busbar, a cable terminal and a bushing, wherein the three-pole three-station isolating earthing switch is installed above the three-phase tank type circuit breaker, the three-way busbar is installed above the three-pole three-station isolating earthing switch, the cable terminal is installed on one side of the three-way busbar, the bent busbar is installed above the three-way busbar, and the bushing is installed above the bent busbar; the utility model has a compact structure, a width that meets the size requirement of less than 2.55m, and the choice of transport vehicle is not restricted. It is equipped with two hybrid terminal forms of bushing and cable terminal, and can be flexibly switched in different application scenarios of overhead lines and cable inlet and outlet lines.

Description

A compact hybrid terminal 145kV composite switchgear for mobile transformers

Technical Field

The utility model relates to the technical field of vehicle-mounted mobile substations, in particular to a compact hybrid terminal type 145kV composite combined electrical appliance for mobile substations.

Background Art

With the development of society and the continuous growth of economy, the demand for power supply reliability is increasing. By integrating transformers and switchgear on the transport vehicle, the vehicle-mounted mobile substation can flexibly switch application scenarios, and customer demand is increasing. Due to the particularity of vehicle-mounted mobile application scenarios, some special restrictions are also put forward for the design of switchgear.

At present, conventional 145kV switchgear is limited by insulation distance, and the equipment width is generally greater than 3m, which has exceeded the domestic and foreign road width limit of 2.55m. Oversized transport vehicles need to submit transportation applications in advance, which is cumbersome, and vehicles cannot be transported on narrow roads with small turning radius, which limits the scope of application and is not conducive to transportation safety. In addition, the switchgear equipped in traditional mobile substations has a single inlet and outlet terminal form, which is not compatible with overhead lines or cables, and the scope of application is limited.

Therefore, the utility model proposes a compact hybrid terminal type 145kV composite combined electrical appliance for mobile transformer to solve the above problems.

Utility Model Content

The technical problem to be solved by the utility model is to provide a compact hybrid terminal type 145kV composite combined electrical appliance for mobile transformers, which has a compact structure so that the width meets the size requirement of less than 2.55m, and the choice of transport vehicle is not restricted. It is equipped with two hybrid terminal forms of bushing and cable terminal, and can be flexibly switched in different application scenarios of overhead lines and cable inlets and outlets.

In order to solve the above technical problems, the technical solution of the utility model is: a compact hybrid terminal type 145kV composite combined electrical appliance for mobile transformer, the innovation of which is: including a three-phase tank circuit breaker, a three-pole three-position isolating grounding switch, a three-way busbar, a bent busbar, a cable terminal and a bushing;

The three-pole three-position isolating and grounding switch is installed above the three-phase tank circuit breaker, the three-way busbar is installed above the three-pole three-position isolating and grounding switch, the cable terminal is installed on one side of the three-way busbar, the elbow busbar is installed above the three-way busbar, and the bushing is installed above the elbow busbar.

Furthermore, the three-phase tank type circuit breaker is installed on a bracket and arranged in three-phase parallel shape. The three-phase tank type circuit breaker is driven by a spring operating mechanism, and the spring operating mechanism is installed on the moving side of the three-phase tank type circuit breaker.

Furthermore, the three-pole three-position isolating and grounding switch is plugged into and electrically connected to the contact seat of the three-phase tank-type circuit breaker through a first conductive rod. The three-pole three-position isolating and grounding switch is driven by a switch operating mechanism, and the switch operating mechanism is installed on one side of the three-pole three-position isolating and grounding switch.

Furthermore, the three-way busbar is plugged into a contact seat of a three-pole three-position isolating and grounding switch through a second conductive rod and is electrically connected.

Furthermore, the bent-through busbar is plugged into the contact seat of the three-way busbar through the third conductive rod and electrically connected.

Furthermore, the composite combination electrical appliance also includes a double-way busbar, which is installed on the static side of the three-phase tank type circuit breaker and is electrically connected to the basin on the static side of the three-phase tank type circuit breaker through a fourth conductive rod. The three-level three-position isolating grounding switch is installed above the three-phase tank type circuit breaker or the double-way busbar.

The advantages of the utility model are:

The utility model integrates the cable terminal and the bushing above the three-phase tank type circuit breaker through the combined assembly of the three-way busbar and the bent busbar, thereby realizing the mixed use of the terminals and being able to flexibly switch between different application scenarios of overhead lines and cable inlet and outlet lines. In addition, the structural features of the three-phase tank type circuit breaker, the three-pole three-position isolating and grounding switch, the cable terminal and the bushing being arranged in sequence from bottom to top greatly reduce the overall width of the composite combination electrical appliance, and the structure is compact, with an overall width of less than 2.55m, which is convenient for vehicles to transport and turn on narrow roads, and is convenient for mobile and portable transportation, thereby improving the safety of transportation, so that they can be put into on-site fault maintenance and emergency response in a timely manner.

In the utility model, the three-pole three-position isolating grounding switch and the three-phase tank circuit breaker, the three-way busbar and the three-pole three-position isolating grounding switch, and the bent busbar and the three-way busbar are connected with each other by means of conductive rods and contact seats to achieve electrical connection, making the structure more compact.

The utility model can reliably ensure the insulation margin between bushings by installing a double-pass busbar on the static side of a three-phase tank type circuit breaker.

BRIEF DESCRIPTION OF THE DRAWINGS

The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

FIG1 is a front view of a compact hybrid terminal type 145 kV composite combined electrical appliance for mobile transformer according to the utility model.

FIG2 is a side view of a compact hybrid terminal type 145 kV composite combined electrical appliance for mobile transformer according to the utility model.

FIG3 is a top view of the compact hybrid terminal type 145 kV composite combined electrical appliance for mobile transformer of the utility model.

Implementation

In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

As shown in Figure 1-3, a compact hybrid terminal type 145kV composite combined electrical appliance for mobile transformer includes a three-phase tank circuit breaker 7, a three-pole three-position isolating and earthing switch 5, a three-way busbar 3, a bent busbar 2, a double-way busbar 9, a control cabinet 10, a cable terminal 4 and a bushing 1.

The three-phase tank circuit breaker 7 is installed on a bracket 8 and arranged in three-phase parallel shape. The bracket 8 is a frame structure formed by splicing a plurality of horizontal bars and vertical bars. The three-phase tank circuit breaker 7 is driven by a spring operating mechanism 6. The spring operating mechanism 6 is installed on the moving side of the three-phase tank circuit breaker 7. The spring operating mechanism 6 transmits power to the three-phase tank circuit breaker 7 through an output connecting rod. The three phases of the three-phase tank circuit breaker 7 are mechanically linked between the phases through the first phase-to-phase pull rod.

The double-pass busbar 9 is installed on the static side of the three-phase tank circuit breaker 7 and is electrically connected to the pot on the static side of the three-phase tank circuit breaker 7 through the fourth conductive rod. Adding the double-pass busbar 9 can reliably ensure the insulation margin between the bushings.

The three-stage three-station isolating and grounding switch 5 is installed above the three-phase tank circuit breaker 7 or the double-pass busbar 9. The three-pole three-station isolating and grounding switch 5 is plugged into and electrically connected to the contact seat of the three-phase tank circuit breaker 7 or the double-pass busbar 9 through the first conductive rod. The three-pole three-station isolating and grounding switch 5 is driven by a switch operating mechanism 11. The switch operating mechanism 11 is installed on one side of the three-pole three-station isolating and grounding switch 5 to facilitate operation and maintenance by operation and maintenance personnel. The switch operating mechanism 11 is powered by the three-pole three-station isolating and grounding switch 5 through a rotating shaft. The three poles of the three-pole three-station isolating and grounding switch 5 are mechanically linked between phases through a second phase-to-phase pull rod.

The three-way busbar 3 is installed above the three-pole three-station isolating and grounding switch 5. The three-way busbar 3 is plugged into the contact seat of the three-pole three-station isolating and grounding switch 5 through the second conductive rod and electrically connected. The cable terminal 4 is installed on one side of the three-way busbar.

The bent busbar 2 is installed above the tee busbar 3. The bent busbar 2 is plugged into the contact seat of the tee busbar 3 through the third conductive rod and electrically connected. The bushing 1 is installed above the bent busbar 2. When the bent busbar 2 is installed, the insulation distance of the overhead line terminal on the bushing can be adjusted by the arrangement direction of the bent busbar 2 to achieve the rated insulation level.

The control cabinet 10 is provided with a composite combined electrical control system, and the control cabinet 10 is installed on one side of the three-phase tank circuit breaker 7 .

The utility model integrates the cable terminal and the bushing above the three-phase tank type circuit breaker through the combined assembly of the three-way busbar and the bent busbar. The bushing is used to connect to the primary overhead line, and the cable terminal is used to plug into the primary cable, so that the terminals can be mixed and can be flexibly switched in different application scenarios of the overhead line and the cable inlet and outlet lines. The structural features of the three-phase tank type circuit breaker, the three-pole three-position isolating and earthing switch, the cable terminal and the bushing are arranged in sequence from bottom to top, which greatly reduces the overall width of the composite combination electrical appliance. Moreover, the three-pole three-position isolating and earthing switch and the three-phase tank type circuit breaker, the three-way busbar and the three-pole three-position isolating and earthing switch, and the bent busbar and the three-way busbar are electrically connected by means of mutual plugging of conductive rods and contact seats. The utility model has a compact structure and an overall width of less than 2.55m, which is convenient for vehicles to transport and turn on narrow roads, and convenient for mobile and portable transportation, thereby improving the safety of transportation so that they can be put into on-site fault maintenance and emergency response in a timely manner.

Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims (6)

1. A compact hybrid terminal type 145kV composite combined electrical appliance for mobile transformer, characterized by: comprising a three-phase tank circuit breaker, a three-pole three-position isolating grounding switch, a three-way busbar, a bent busbar, a cable terminal and a bushing; The three-pole three-position isolating and grounding switch is installed above the three-phase tank circuit breaker, the three-way busbar is installed above the three-pole three-position isolating and grounding switch, the cable terminal is installed on one side of the three-way busbar, the elbow busbar is installed above the three-way busbar, and the bushing is installed above the elbow busbar. 2. According to the compact hybrid terminal 145kV composite combined electrical appliance for mobile transformers as described in claim 1, it is characterized in that: the three-phase tank type circuit breaker is installed on a bracket and arranged in three-phase parallel shape, the three-phase tank type circuit breaker is driven by a spring operating mechanism, and the spring operating mechanism is installed on the moving side of the three-phase tank type circuit breaker. 3. According to claim 1, the compact hybrid terminal type 145kV composite combination electrical appliance for mobile transformer is characterized in that: the three-pole three-position isolating and grounding switch is plugged into and electrically connected to the contact seat of the three-phase tank type circuit breaker through the first conductive rod, and the three-pole three-position isolating and grounding switch is driven by a switch operating mechanism, and the switch operating mechanism is installed on one side of the three-pole three-position isolating and grounding switch. 4. The compact hybrid terminal type 145kV composite combined electrical appliance for mobile transformer according to claim 1 is characterized in that the three-way busbar is plugged into the contact seat of the three-pole three-position isolating grounding switch through the second conductive rod and is electrically connected. 5. The compact hybrid terminal type 145kV composite switchgear for mobile transformer according to claim 1 is characterized in that the bent busbar is plugged into the contact seat of the three-way busbar through the third conductive rod and electrically connected. 6. The compact hybrid terminal 145kV composite combined electrical appliance for mobile transformer according to claim 1 is characterized in that: the composite combined electrical appliance also includes a double-pass busbar, which is installed on the static side of the three-phase tank type circuit breaker and is electrically connected to the basin on the static side of the three-phase tank type circuit breaker through a fourth conductive rod, and a three-level three-position isolating and grounding switch is installed above the three-phase tank type circuit breaker or the double-pass busbar.