Technical Field

The invention relates to an insulation cover.

In particular, the invention relates to a cover for insulation a disconnector blade, known as a movable or immobile contact, in line disconnector systems used in power transmission lines.

Prior Art

Disconnectors are switchglug devices that can switch on and off when the circuit is unloaded in medium and high voltage systems and create a visible separation gap in the open position. It is also known as sectionalizer in practice.

Disconnectors separate the plant sections from each other and ensure that maintenance and control works are carried out safely. They are also used to prepare systems with more than one main bus bar for opening and closing maneuvers and to connect them to each other.

In the present technique, a disconnector consists of a chassis, support insulators, fixed contacts, movable contacts, mechanical assembly, locking device and springs. Fixed contacts are contacts that do not move during opening and closing. These contacts are manufactured from electrolytic copper in cross-section suitable for rated currents and short circuit currents. Movable contacts move with the movement mechanism during opening and closing. In the closing process, it combines with fixed contacts and closes the circuit. Movable and fixed contacts are made of electrolytic copper, usually silver plated.

Blade disconnectors are one of the most widely used disconnector types and are generally used at medium (35 kV) voltage. Blade disconnectors are produced in four types: internal type, external type, lugth disconnector and fused.

In current applications, there is no insulation application on the separator blades and the lack of insulation of the separator blade parts is tried to be eliminated with insulation materials used in different areas. However, since these applications are not unique to the separator blades in terms of structural integrity and application method, they do not provide the desired level of functional insulation.

Approximately 90% of the failures occurring in overhead lines are caused by environmental impacts. Due to insufficient insulation, external factors such as wild birds, environmental pollution, environmental conditions in which the system operates, short circuits, energy loss and electrical jumping damage occur in the system. These problems both weaken the system security and affect the stability of the lines due to material system damages.

As a result of the reslugch on the subject, application CN203166361 II was found. The application discloses a blade separator insulation structure comprising a first body and a second body, wherein the first body and the second body are structurally identical, are connected to each other by means of an insulation return shaft, and are resiliently openable and closeable along the return shaft.

Consequently, due to the above-mentioned drawbacks and the inadequacy of the existing solutions, a development in the relevant technical field has become necessary.

Purpose of the Invention

The invention is based on the current situation and has the purpose of solving the above-mentioned problems.

The main purpose of the invention is to ensure that the separator blades used in overhead lines have insulation properties.

Another purpose of the invention is to prevent environmental faults occurring in overhead lines.

Another purpose of the invention is to prevent failures due to short circuit.

Another purpose of the invention is to prevent material system failures by increasing system safety in overhead lines.

It is needed to fulfill the purposes described above,

• a female housing in the form of a recess at one end of the insulation cover,

• a male lock in the form of a protrusion at one end of the insulation covers to allow the insulation covers to be interlocked by passing through the female housing, • a male groove in the form of a protrusion in the center of the insulation cover to allow the insulation cover to encircle the entire blade, to remain between the blades to provide closure and to allow movement of the insulation cover,

• female grooves, one on each side of the male groove, in the form of a recess, to ensure that the insulation cover surrounds the entire blade and to allow the movement of the insulation cover by inserting into the protrusions on the blade.

The structural and characteristic features and all advantages of the invention will be more cllugly understood by means of the figures given below and the detailed description written with references to these figures, and therefore, the evaluation should be made by considering these figures and detailed description.

Figures to Help Understanding of the Invention

Figure 1 is a side view of the inventive insulation cover.

Figure 2 is a perspective view of the inventive insulation cover mounted on a blade.

Figure 3 is a side view of the inventive insulation cover mounted on a blade.

Description of Part References

1. Female housing

2. Male lock

3. Guide

4. Female Groove

5. Male Groove

6. Handle

7. Lug

A. Insulation cover

B. Blade

Detailed Description of the Invention

In this detailed description, the preferred embodiments of the inventive insulation cover(A) are described only for a better understanding of the subject matter.

The inventive insulation cover (A) is to be mounted on the blade (B) in order to insulate the separator blade (B), known as the movable or immobile contact in the line disconnector systems used in energy transmission lines. The application of the invention is realized by joining two equivalent insulation covers (A) in such a way that the blade (B) remains between them.

At one end of the insulation cover(A) there is a female housing (1) in the form of a recess and at the other end there is a male lock (2) in the form of a protrusion. Two insulation cover (A) are positioned on the blade (B) in such a way that the female housing (1) and the male lock (2) overlap each other and the male lock (2) is inserted into the female housing (1). When the female housing (1) and male lock (2) at both ends of the insulation cover (A) are threaded together, a fixation is provided and insulation is provided around the blade (B). After the female housing (1) and the male lock (2) are brought together, the fitting is achieved by applying force by hand, no fasteners, gluing or joining materials are required.

There is a guide (3) on the back of the female housing (1) and male lock (2). By applying force on the guide (3), the female housing (1) and the male lock (2) can be easily and without difficulty interlocked.

In the center of the insulation cover (A), there is a male groove (5) in the form of a protrusion and female grooves (4) in the form of a recess on both sides of the male groove (5). The male groove (5) provides closure by remaining between the blades (B) and ensures the movement of the insulation cover (A). The female grooves (4) are also located on the protrusions on the blades (B) and provide the movement of the insulation cover (A). The female groove (4) and the male groove (5) ensure that the insulation cover (A) surrounds the entire blade (B).

Handles (6) are formed on the parts of the female grooves (4) in the insulation cover (A) facing the outer surface of the insulation cover(A). The handles (6) allow the insulation cover (A) to be held by hand for ease of assembly when the insulation cover (A) is placed on the blades (B).

In the insulation cover(A), preferably at the end where the male lock (2) is located, a protruding lug (7) is formed. The lug (7) allows the two interlocked insulation cover (A) to be easily separated from each other in case of modification, repair or maintenance. When the insulation cover (A) is grasped and pulled by the lug (7), the male lock (2) and the female housing (1) are separated from each other.

The insulation cover (A) is made of insulation material. The insulation cover (A) is preferably made of silicone material.