CN203799834U - Transformer high-voltage bushing with waterproof function - Google Patents

Abstract

The utility model discloses a transformer high-voltage bushing with waterproof function, which is mainly composed of a metal sleeve (1) and a rubber gasket (2). The rubber washer (2) is located between the metal sleeve (1) and the lead connecting rod, and the lower part of the metal sleeve (1) is fixed to the transformer by bolts (3). The utility model puts a metal sleeve outside the lead wire of the transformer, and seals the metal sleeve and the lead wire by setting a rubber gasket to prevent water from entering the casing; in order to further ensure the sealing of the casing, a fastening ring is arranged outside the metal sleeve, The fastening ring further fixes the metal sleeve to the lead wire to prevent water from flowing into the bushing along the lead wire; in order to prevent water from entering the transformer through the oil plug, a waterproof cover is specially provided to prevent water from entering the transformer through the oil plug; by setting the air seal ring And the sealing gasket, prevent water from seeping into the transformer from the bottom of the metal sleeve, thereby improving the sealing performance of the bushing.

Description

A transformer high voltage bushing with waterproof function

technical field

The utility model relates to the field of electric equipment, in particular to a transformer high-voltage bushing with waterproof function.

Background technique

The high-voltage bushing is an important part of the transformer. The function of the transformer bushing is to lead the high and low voltage leads inside the transformer to the outside of the oil tank. One, if the bushing end of the bushing transformer is not tightly sealed, it is easy to leak water inwardly along the connecting rod of the lead wire. In the case of water leakage or water seepage, the transformer coil is easy to burn out. The traditional transformer high-voltage bushing has poor sealing performance, and the top of the traditional bushing is directly connected to the terminal board, so that the bushing has dual functions of sealing and conducting. There are many hidden dangers in use. Moisture enters the inside of the transformer along the lead connecting rod. The burning of the winding near the lead wire is likely to cause a breakdown accident.

Utility model content

The purpose of this utility model is to provide a transformer high-voltage bushing with waterproof function. Through optimized design, it can effectively prevent water from entering the transformer along the lead wire and cause the transformer coil to be burned, thereby avoiding safety accidents and ensuring electricity safety.

The utility model is realized through the following technical solutions: a transformer high-voltage bushing with waterproof function, mainly composed of a metal sleeve and a rubber gasket, the metal sleeve is set outside the connecting rod of the transformer lead wire, and the rubber gasket is located Between the connecting rods, the lower part of the metal sleeve is fixed with the transformer through bolts.

Further, in order to better realize the utility model, a fastening ring with one side opening is set on the outer wall above the metal sleeve, and the opening side of the fastening ring is fixed by fastening bolts.

Furthermore, in order to better realize the utility model, an air seal ring is also provided inside the lower part of the metal sleeve.

Further, in order to better realize the utility model, a fixed seat is provided on the side of the metal sleeve close to the oil plug of the transformer, the upper part of the fixed seat is connected with a waterproof cover through a pin, and a protrusion is also provided on the transformer, and the waterproof cover The end of the cover away from the fixing seat is located above the protrusion.

Further, in order to better realize the utility model, a sealing washer is arranged between the bolt and the metal sleeve.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The utility model puts a metal sleeve on the outside of the transformer lead wire, and seals the metal sleeve and the lead wire by setting a rubber gasket to prevent water from entering the inside of the casing along the lead wire connecting rod;

(2) In order to further ensure the tightness of the casing, the utility model sets a fastening ring outside the metal sleeve, and further fixes the metal sleeve to the lead through the fastening ring to prevent water from flowing into the casing along the lead;

(3) In order to prevent water from entering the transformer through the oil filling plug, the utility model is specially equipped with a waterproof cover on the upper part of the oil filling plug, so as to prevent water from entering the transformer through the oil filling plug;

(4) The utility model is provided with an air seal ring at the bottom of the metal sleeve and a sealing gasket at the joint between the bolt and the metal sleeve to prevent water from seeping into the transformer from the bottom of the metal sleeve, thereby improving the sealing performance of the bushing.

Description of drawings

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

Among them: 1—metal sleeve; 2—rubber gasket; 3—bolt; 4—air seal ring; 5—sealing washer; 6—lead connecting rod; 7—waterproof cover; 8—fixed seat; 9—pin; 10—convex 11—oil plug; 12—fastening ring; 13—fastening bolt.

Detailed ways

The utility model will be further described in detail below in conjunction with specific examples, but the implementation of the utility model is not limited thereto.

Example 1:

As shown in Figure 1, a transformer high-voltage bushing with waterproof function is mainly composed of a metal sleeve 1 and a rubber gasket 2. The metal sleeve 1 is set outside the transformer lead connecting rod 6, and the rubber gasket 2 is located on the 1 and the lead connecting rod 6, the lower part of the metal sheath 1 is fixed with the transformer through bolts 3. In order to prevent water from flowing into the transformer along the lead wire connecting rod 6, the metal sleeve 1 is placed outside the lead wire connecting rod 6 and sealed by a rubber gasket 2, and the lower part of the metal sleeve 1 is fixed on the transformer to prevent water from entering through the lower part of the metal sleeve 1 transformer.

Example 2:

As shown in FIG. 1 , in order to better realize the utility model, a fastening ring 12 is set on the upper outer wall of the metal sleeve 1 , and one side of the fastening ring 12 is fixed by fastening bolts 13 . In order to further strengthen the tightness between the metal sheath 1 and the lead connecting rod 6 , the fastening ring 12 is tightened by the fastening bolt 13 , thereby effectively improving the sealing performance of the metal sheath 1 . Other parts of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

Example 3:

As shown in FIG. 1 , in order to better realize the utility model, an air seal ring 4 is also provided on the inner side of the lower part of the metal sleeve 1 . A sealing washer 5 is arranged between the bolt 3 and the metal sleeve 1 . By arranging the air sealing ring 4 and the sealing washer 5, water can be effectively prevented from seeping into the transformer from the bottom of the metal sleeve 1, thereby reducing potential safety hazards. Other parts of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

Example 4:

As shown in Figure 1, in order to better realize the utility model, a fixed seat 8 is provided on the side of the metal sleeve 1 close to the transformer oil plug 11, and the upper part of the fixed seat 8 is connected with a waterproof cover 7 through a pin 9. On the transformer A protrusion 10 is also provided, and the end of the waterproof cover 7 away from the fixing seat 8 is located above the protrusion 10 . In order to prevent water through the oil plug 11 from seeping into the transformer, a waterproof cover 7 is provided for the oil plug 11, and the waterproof cover 7 is fixed on the protrusion 10 and the fixing seat 8, so as to avoid water seepage caused by water dripping on the oil plug 11. Other parts of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification or equivalent change made to the above embodiments according to the technical essence of the utility model falls within the scope of the present utility model. Within the protection scope of the present utility model. the

Claims (5)

1. A transformer high-voltage bushing with waterproof function, characterized in that it is mainly composed of a metal sleeve (1) and a rubber gasket (2), and the metal sleeve (1) is set on the outside of the transformer lead connecting rod (6). The rubber washer (2) is located between the metal sleeve (1) and the lead connecting rod (6), and the lower part of the metal sleeve (1) is fixed to the transformer through bolts (3). 2. A transformer high-voltage bushing with waterproof function according to claim 1, characterized in that: a fastening ring (12) with one side opening is set on the outer wall above the metal sleeve (1), and the fastening ring (12) is One side of the opening of the ring (12) is fixed by fastening bolts (13). 3. A transformer high-voltage bushing with waterproof function according to claim 1, characterized in that: an air seal ring (4) is also provided on the inner side of the lower part of the metal sleeve (1). 4. A transformer high-voltage bushing with waterproof function according to claim 1, characterized in that: the metal sleeve (1) is provided with a fixing seat (8) on the side close to the transformer oil plug (11), and the fixing seat (8) The upper part is connected with a waterproof cover (7) through a pin (9), and a protrusion (10) is also provided on the transformer. The end of the waterproof cover (7) away from the fixing seat (8) is located above the protrusion (10) . 5. A transformer high-voltage bushing with waterproof function according to claim 1, characterized in that: a sealing washer (5) is arranged between the bolt (3) and the metal sleeve (1).