CN206331993U - A kind of 35 kilovoltage transformer limiting fuse wiring end cap devices - Google Patents

Abstract

The utility model discloses a 35 kV voltage transformer current-limiting fuse terminal cap device, which comprises an end cap and a cap. The end cap is circular, and a central hole is arranged in the center of the end cap. Cover the upper surface of the end cap and cover the central hole of the end cap, one side of the cap is hinged with one side of the end cap through a pin shaft, and the other side of the cap is locked by a fastening mechanism arranged on the other side of the cap Tight on end cap. The utility model is easy to install and replace. It is made of aluminum die-casting and has high strength. There is a sealing gasket inside and has the function of waterproof and moisture-proof. The fastening parts and connecting plates are made of stainless steel to prevent rust from affecting the service life. The utility model is also equipped with a wiring board , for external aluminum row or wire clip.

Description

A 35 kV voltage transformer current-limiting fuse terminal cap device

technical field

The utility model relates to a terminal cap device for a current-limiting fuse of a 35 kilovolt voltage transformer.

Background technique

At present, in the primary system of a 35KV substation, the outdoor 35KV voltage transformer high-voltage side fuse usually uses the RW10-35 high-voltage side fuse, which is mainly used for short-circuit and overload protection of the voltage transformer. The fuse is composed of a melt tube, a porcelain sleeve, a fastening flange, a rod-shaped support insulator and a terminal cap, etc., and is installed on a cross arm more than 2 meters above the ground. On the cross arm above 2 meters above the ground, the melt is installed in the fuse porcelain tube, and each end of the fuse tube has a fuse end cap connected with the primary wire. When faults such as single-phase grounding of the power system cause the fuse on the high-voltage side of the voltage transformer to blow, due to its own structure and long-term installation outdoors, it is easily corroded by rain and snow, and the fixing bolts are rusted, difficult to unscrew, and sometimes even broken , The terminal cap cannot be removed, the melt tube cannot be replaced, and it has to be destructively removed, which is time-consuming and laborious, prolongs the power outage time, affects the safe and reliable operation of power grid equipment, and increases the safety hazards of maintenance personnel.

Contents of the invention

In order to solve the problems in the prior art, the purpose of this utility model is to provide a terminal cap device for a current-limiting fuse of a 35 kV voltage transformer.

In order to achieve the above-mentioned purpose of the invention, the utility model adopts the following technical solutions:

A 35 kV voltage transformer current-limiting fuse terminal cap device, including an end cap and a cap, the end cap is circular, a central hole is arranged in the center of the end cap, the cap is arranged on the upper surface of the end cap and Cover the central hole of the end cap, one side of the cap is hinged to one side of the end cap through a pin shaft, and the other side of the cap is fastened to the end cap by a fastening mechanism arranged on the other side of the cap .

Further, the cap is circular, and a connecting rod is fixed on one side of the upper surface of the cap, and a U-shaped connecting plate is fixed on one side of the end cap, and the free end of the connecting rod is located in the notch of the connecting plate And hinged by a pin.

Further, the fastening mechanism includes a fixed rod fixed on the other side of the upper surface of the cap 1 and a fastening part arranged on the end cap and fastened with the fixed rod, and the fastening part is provided by the handle It is composed of a clasp set on the handle. One end of the handle is hinged to the other side of the end cap. The two ends of the clasp are connected to the two sides of the handle correspondingly. Tight connection of the cap to the end cap.

Further, a wiring board is also arranged on the end cap.

Further, an annular gasket is also provided between the cap and the end cap.

Further, both the end cap and the cap are die-cast aluminum.

Further, the fastening member and the connecting plate are made of stainless steel.

Due to the above-mentioned technical scheme, the utility model has the following advantages:

The utility model is easy to install and replace. It is made of aluminum die-casting and has high strength. There is a sealing gasket inside, which has the function of waterproof and moisture-proof. The fastening parts and connecting plates are made of stainless steel to prevent rust from affecting the service life. The utility model is also equipped with a wiring board , for external aluminum row or wire clip.

Description of drawings

Fig. 1 is the structural representation of utility model;

In the figure: 1, cap; 2, end cap; 3, pin shaft; 4, connecting rod; 5, connecting plate; 6, fixing rod; 7, clasp; 8, handle; 9, wiring board.

detailed description

The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1, a 35 kV voltage transformer current-limiting fuse terminal cap device includes an end cap 2 and a cap 1, the end cap 2 is circular, and a central hole is arranged in the center of the end cap 2, The cap 1 is set on the upper surface of the end cap and covers the central hole of the end cap 2, one side of the cap 1 is hinged with one side of the end cap through a pin 3, and the other side of the cap 1 is arranged on the cap The snap mechanism on the other side snaps onto the end cap.

The cap 1 is circular, and one side of the upper surface of the cap 1 is fixedly provided with a connecting rod 4, and one side of the end cap 2 is fixedly provided with a U-shaped connecting plate 5, and the free end of the connecting rod 4 is located on the connecting plate. 5 and hinged by pin 3.

The fastening mechanism includes a fixed rod 6 fixed on the other side of the upper surface of the cap and a fastening piece arranged on the end cap 2 and fastened with the fixed rod. The fastening piece is composed of a handle 8 and a fastening piece. The buckle 7 arranged on the handle is composed of one end of the handle 8 and the other side of the end cap 2. The two ends of the buckle 7 are correspondingly connected to the two sides of the handle, and the fastening part is fastened by the buckle 7 on it. The tight connection between the cap 1 and the end cap 2 is realized on the fixing rod 6 .

A wiring board 9 is also provided on the end cap 2 for externally connecting aluminum bars or wire clamps.

An annular gasket is also arranged between the cap 1 and the end cap 2, and the gasket cover is arranged on the center hole on the end cap, and the inner diameter of the gasket is greater than or equal to the diameter of the center hole, and the gasket The center line of the center line and the center line of the center hole are located on the same straight line; the setting of the gasket can improve the waterproof and moisture-proof performance of the utility model.

Both the end cap and the cap cover are made of aluminum die-casting, and the fastening parts and connecting plates are made of stainless steel.

When the utility model is actually used, the sealing pad cover is arranged at the central hole of the end cap, and then the cap is set on the sealing pad, and then the buckle is fastened on the fixed rod, and the fixed rod is provided with a limit stop , used to prevent the buckle from falling off the fixed rod after the buckle is fastened on the fixed rod, and then press down the other end of the handle, so that the cap and the end cap are tightly connected together.

Claims (6)

1. a kind of 35 kilovoltage transformer limiting fuse wiring end cap device, it is characterised in that：Including end cap and cap, end Cap is rounded, is holding the centre bore that is provided centrally with of cap, cap lid is located at end cap upper surface and the centre bore of cap will be held to cover, cap The side of the side of lid and end cap is by hinge, and the opposite side of cap passes through the fastening mechanism that is arranged on cap opposite side It is clamped on the cap of end.

2. 35 kilovoltage transformer limiting fuse wiring end cap device according to claim 1, it is characterised in that：Cap Lid is rounded, and connecting rod is fixedly installed in the side of cap upper surface, and the side of end cap is installed with U-shaped connecting plate, the company The free end of extension bar is located in the notch of connecting plate and passes through hinge.

3. 35 kilovoltage transformer limiting fuse wiring end cap device according to claim 1, it is characterised in that：Institute Stating fastening mechanism includes being installed in cap（1）The fix bar of upper surface opposite side and be arranged on end cap on and the fix bar coordinate The fasteners of snapping, the fasteners are made up of handle and the clasp being arranged on handle, and one end of handle and end cap are another Side is hinged, and clasp both ends correspondence is connected to the two sides of handle, and fasteners are fastened in fix bar real by clasp thereon The close connection of existing cap and end cap.

4. 35 kilovoltage transformer limiting fuse wiring end cap device according to claim 1, it is characterised in that： Terminal plate is additionally provided with the cap of end.

5. 35 kilovoltage transformer limiting fuse wiring end cap device according to claim 1, it is characterised in that： Gask-O-Seal is additionally provided between cap and end cap.

6. 35 kilovoltage transformer limiting fuse wiring end cap device according to claim 1, it is characterised in that：Institute State end cap and cap is aluminium and is cast into.