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A three-phase wound core distribution transformer and its assembly method
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A technology of distribution transformer and assembly method, applied in the field of three-phase wound iron core distribution transformer
Inactive Publication Date: 2016-05-25
SUZHOU ANTAI TRANSFORMER
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[0002] The traditional three-phase wound core distribution transformer is made of silicon steel sheets, the cross section of the iron core is circular, and the iron core is used as the skeleton for winding the coil. It needs to use a special winding machine for winding. limitations
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Embodiment 1
[0036] see Figure 1-Figure 5 , as shown in the legend therein, a three-phase wound core distribution transformer includes a three-phase planar wound core, three coil windings 3 installed on the three-phase planar wound core, a tap changer (not shown in the figure) shown), lead wires (not shown in the figure) and oil tank (not shown in the figure), the three-phase planar wound core includes:
[0037] One clamp 42;
[0038] The lower core frame group includes four lower U-shaped core frames 12 arranged on the same plane; the four lower U-shaped core frames 12 are socketed on the lower clip 42;
[0039] An upper core frame group, including four upper U-shaped core frames 11 arranged on the same plane; the four upper U-shaped core frames 11 are plugged and connected to the four lower U-shaped core frames 12 to form four core frames ;
[0040] An upper clip 41 is connected with the lower clip 42 for encapsulating the upper core frame set and the lower core frame set.
[0041] ...
Embodiment 2
[0055] The rest is the same as the first embodiment, except that the cross sections of the upper U-shaped core frame 11 and the lower U-shaped core frame 12 are both rectangular.
[0056]The multilayer upper section U-shaped hemming core 110 and the multilayer lower section U-shaped hemming iron core 120 are both rolled from silicon steel sheet strips with the same width. In this case, because the width of the silicon steel sheet strips is the same, different The silicon steel sheet needs to be further cut to achieve 100% utilization of the silicon steel sheet.
Embodiment 3
[0058] see Figure 6 , as shown in the legend therein, the rest is the same as that of Embodiment 2, the difference is that the five upper insertion ends 111, 112, 113, 114, 115 and the five lower insertion ends 121, 1223, The plug connections of 123, 124, and 125 are arranged in steps. In this case, during the inserting process, it can be ensured that the plug ends of the upper U-shaped core frame 11 and the lower U-shaped core frame 12 are Misalignment will not occur.
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Abstract
The invention discloses a novel three-phase wound core distribution transformer. The novel three-phase wound core distribution transformer comprises a three-phase planar wound core, a coil winding installed on the three-phase planar wound core, a tap switch, an outgoing line and an oil tank. The three-phase planar wound core comprises a lower clamp, a lower-section iron core frame set inserted in the lower clamp, an upper-section iron core frame set connected with the lower-section iron core frame set in an inserting mode, and an upper clamp used for packaging the upper-section iron core frame set and the lower-section iron core frame set. The three-phase planar wound core is simple in structure and convenient to manufacture. The invention further discloses an assembly method for the novel three-phase wound core distribution transformer. The assembly method is fast and wide in application range and improves the work efficiency greatly.
Description
technical field [0001] The invention relates to a three-phase wound core distribution transformer, in particular to an assembly method of the three-phase wound core distribution transformer. Background technique [0002] The traditional three-phase wound core distribution transformer is made of silicon steel sheets, the cross section of the iron core is circular, and the iron core is used as the skeleton for winding the coil. It needs to use a special winding machine for winding. limitations. Contents of the invention [0003] The invention provides a three-phase wound core power distribution transformer with convenient coil winding and greatly improved work efficiency and an assembly method thereof. [0004] To achieve the above object, the present invention provides the following technical solutions. [0005] A three-phase wound core distribution transformer, comprising a three-phase planar wound core, coil windings mounted on the three-phase planar wound core, a tap c...
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