CN204464024U - Arrangement structure of a three-phase horizontal drum-shaped off-excitation tap-changer - Google Patents

Abstract

The utility model relates to a kind of arrangement of triphase horizontal drum shape no-exciting tap changer, belongs to transformer technology field.Technical scheme is: comprise corner connection switch element, star connects switch element and oil tank of transformer casing (4), and corner connection switch element and star connect switch element and be separately fixed on oil tank of transformer casing (4), in arranging up and down, described corner connection switch element comprises upper clamping piece (1), corner connection switch mounting (2), triphase horizontal cydariform is without excitation corner connection switch (3) and corner connection switching manipulation handle (5), corner connection switch mounting (2) is fixed on upper clamping piece (1), triphase horizontal cydariform is fixed on corner connection switch mounting (2) without excitation corner connection switch (3), triphase horizontal cydariform connects corner connection switching manipulation handle (5) without excitation corner connection switch (3), the beneficial effects of the utility model are: reduce wire length, avoid the intersection of lead-in wire, ensure that the band electrical distance of lead-in wire, handled easily.

Description

Arrangement structure of a three-phase horizontal drum-shaped off-excitation tap-changer

technical field

The utility model relates to an arrangement structure of a three-phase horizontal drum-shaped off-excitation tap changer, which belongs to the technical field of ice-melting rectifier transformer equipment.

Background technique

Ice-melting rectifier transformer, the low-voltage adopts axial double-split each with a tap structure, if a three-phase vertical drum-shaped non-excitation tap-changer is used, there are the following disadvantages: First, the lead wires are long and cross many, which is inconvenient to operate; The switch operating handle is located on the top of the fuel tank. When switching the switch gear, the operator needs to climb to the top of the fuel tank. Because this kind of transformer needs to frequently switch gears, it is neither convenient nor safe.

Utility model content

The purpose of the utility model is to provide an arrangement structure of a three-phase horizontal drum-shaped off-excitation tap changer, which reduces the length of lead wires, avoids crossing of lead wires, facilitates operation, and solves the problems existing in the background technology.

The technical scheme of the utility model is:

An arrangement structure of a three-phase horizontal drum-shaped non-excitation tap changer, including a delta connection switch unit, a star connection switch unit and a transformer oil tank body, and the delta connection switch unit and the star connection switch unit are respectively fixed on the transformer oil tank body , arranged up and down;

The angle joint switch unit includes an upper clamp, an angle joint switch mounting frame, a three-phase horizontal drum-shaped non-excitation angle joint switch and an angle joint switch operating handle. The upper clamp is fixed on the transformer oil tank body, and the angle joint switch is installed The bracket is fixed on the upper clamp, and the three-phase horizontal drum-shaped non-excitation corner switch is fixed on the corner switch installation frame. The three-phase horizontal drum-shaped non-excitation corner switch is connected to the corner switch operating handle, and the corner switch is operated The handle is fixed on the side wall of the transformer oil tank;

The star connection switch unit includes a lower clamp, a star connection switch mounting frame, a three-phase horizontal drum-shaped non-excitation star connection switch and a star connection switch operating handle, the lower clamp is fixed on the transformer oil tank body, and the star connection switch is installed The frame is fixed on the lower clamp, the three-phase horizontal drum-shaped non-excitation star connection switch is fixed on the star connection switch mounting frame, the three-phase horizontal drum-shaped non-excitation star connection switch is connected to the star connection switch operating handle, and the star connection switch operating handle It is fixed on the side wall of the transformer oil tank.

The arrangement structure of the above-mentioned three-phase horizontal drum off-excitation tap-changer, the three-phase horizontal drum off-excitation tap changer in the delta connection switch unit and the three-phase horizontal drum off-excitation tap changer in the star connection switch unit The star connection switch is respectively connected with the delta connection winding coil branch wire and the star connection winding coil branch wire.

In the arrangement structure of the above-mentioned three-phase horizontal drum type off-excitation tap changer, the angle switch operating handle in the angle connecting switch unit and the star connecting switch operating handle in the star connecting switch unit are arranged up and down.

The beneficial effect of the utility model is that: the coil sub-wires of the delta-connected winding and the coil sub-wires of the star-connected winding are connected to the corresponding switches, which reduces the length of the lead wires, avoids the crossing of the lead wires, ensures the charging distance of the lead wires, and facilitates operation or operate. Moreover, the switching of the switch gears can be conveniently completed through the operating handle of the angle switch and the operating handle of the star switch.

Description of drawings

Fig. 1 is the structural representation of the utility model;

In the figure: upper clamping piece 1, angle joint switch mounting frame 2, three-phase horizontal drum-shaped non-excitation angle joint switch 3, transformer oil tank box 4, angle joint switch operating handle 5, star joint switch operating handle 6, lower clamp Part 7, star connection switch installation frame 8, three-phase horizontal drum-shaped non-excitation star connection switch 9.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described by example.

Referring to accompanying drawing 1, an arrangement structure of a three-phase horizontal drum-shaped non-excitation tap-changer includes a delta switch unit, a star-connected switch unit and a transformer oil tank box 4, and the delta-connected switch unit and the star-connected switch unit are respectively fixed On the transformer oil tank box body 4, it is arranged up and down;

The angle joint switch unit includes an upper clamp 1, an angle joint switch mounting frame 2, a three-phase horizontal drum-shaped non-excitation angle joint switch 3 and an angle joint switch operating handle 5, and the upper clamp 1 is fixed on the transformer oil tank body 4 On the top, the angle joint switch mounting frame 2 is fixed on the upper clamp 1, the three-phase horizontal drum-shaped non-excitation angle joint switch 3 is fixed on the angle joint switch mounting frame 2, and the three-phase horizontal drum-shaped non-excitation angle joint switch 3 Connect the angle switch operating handle 5, and the angle switch operating handle 5 is fixed on the side wall of the transformer oil tank box 4;

The star connection switch unit includes a lower clamp 7, a star connection switch mounting frame 8, a three-phase horizontal drum-shaped non-excitation star connection switch 9 and a star connection switch operating handle 6, and the lower clamp 7 is fixed on the transformer oil tank body 4 On the top, the star connection switch mounting frame 8 is fixed on the lower clamp 7, the three-phase horizontal drum-shaped non-excitation star connection switch 9 is fixed on the star connection switch mounting frame 8, and the three-phase horizontal drum-shaped non-excitation star connection switch 9 is connected Star connection switch operating handle 6, star connection switch operating handle 6 is fixed on the transformer oil tank casing 4 side walls.

In this embodiment, the corner switch mounting frame 2 and the star connection switch mounting frame 8 are both made of angle steel, which are respectively welded on the upper clamping piece 1 and the lower clamping piece 7. The three-phase horizontal drum-shaped off-excitation star-connected switch 9 is respectively connected with the delta-connected winding coil branch wire and the star-connected winding coil branch wire, which reduces the length of the lead wires and avoids the crossing of the lead wires. The operating shafts of the three-phase horizontal drum type non-excitation angle switch 3 and the three-phase horizontal drum type non-excitation star switch 9 are installed horizontally, and the angle connection switch operating handle 5 and star connection switch operating handle 6 are installed in the transformer oil tank On the side wall of the box body, it is arranged up and down. When switching gears, the operator only needs to stand on the ground to switch gears, which is convenient and safe.

Claims (3)

1. the arrangement of a triphase horizontal drum shape no-exciting tap changer, it is characterized in that comprising corner connection switch element, star connects switch element and oil tank of transformer casing (4), corner connection switch element and star connect switch element and are separately fixed on oil tank of transformer casing (4), in arranging up and down;

Described corner connection switch element comprises upper clamping piece (1), corner connection switch mounting (2), triphase horizontal cydariform is without excitation corner connection switch (3) and corner connection switching manipulation handle (5), upper clamping piece (1) is fixed on oil tank of transformer casing (4), corner connection switch mounting (2) is fixed on upper clamping piece (1), triphase horizontal cydariform is fixed on corner connection switch mounting (2) without excitation corner connection switch (3), triphase horizontal cydariform connects corner connection switching manipulation handle (5) without excitation corner connection switch (3), corner connection switching manipulation handle (5) is fixed on oil tank of transformer casing (4) sidewall,

Described star connects switch element and comprises lower clamping piece (7), star connects switch mounting (8), triphase horizontal cydariform connects switch (9) without excitation star and star connects switching manipulation handle (6), lower clamping piece (7) is fixed on oil tank of transformer casing (4), star connects switch mounting (8) and is fixed on lower clamping piece (7), triphase horizontal cydariform connects switch (9) without excitation star and is fixed on star and connects on switch mounting (8), triphase horizontal cydariform connects switch (9) connection star without excitation star and connects switching manipulation handle (6), star connects switching manipulation handle (6) and is fixed on oil tank of transformer casing (4) sidewall.

2. the arrangement of triphase horizontal drum shape no-exciting tap changer according to claim 1, is characterized in that triphase horizontal cydariform in described corner connection switch element connects triphase horizontal cydariform in switch element without excitation corner connection switch (3) and star and connects switch (9) without excitation star and divide with corner connection winding coil wiring and star to connect winding coil respectively to divide wiring to be connected.

3. the arrangement of triphase horizontal drum shape no-exciting tap changer according to claim 1, is characterized in that corner connection switching manipulation handle (5) in described corner connection switch element and the star star connect in switch element connect switching manipulation handle (6) in arranging up and down.