WINDIND MEANS FOR PURPOSE OF DESTROYING EXTERNAL MAGNETIC

EFFECTS IN LOW POWER CURRENT TRANSFORMERS

TECHNICAL SCOPE

This invention relates to winding means to destroy any effects of external magnetic fields freely on a transformer in direction of external magnetic fields in lower power current transformers.

KNOWN SITUATION OF TECHNIQUE

In known situation of the technique, a magnetic or non-magnetic core is divided pari passu geometrically into two or more divisions independent from its geometrical shape, and two or more windings are wound so that their magnetic directions support each other in each division. Ends of the windings wound so are connected in parallel, and two ends are extracted as transformer outlets. In this method, Magnetic field generated by current passing throughout Z axis generates real magnetic field of the transformer, and the transformer makes measurements over this field. Magnetic fields generated by external currents in different directions and angles with respect to Z axis generates a magnetic field in a contrary direction to external magnetic field by circulation currents in divisions wound in parallel. Since more windings are wound on the core by this method, this creates any manufacture problems. Furthermore, the need to connect parallel windings on the transformer makes the workmanship difficult, and increases any probable workmanship defects. Since same ampere winding ratings are obtained by two or more windings, material rates and workmanship hours are higher. In known situation of the technique, part of spin numbers of the winding to be wound independent from geometrical shape of the core as a principal winding to complete a full cycle. In the winding up to remaining spin numbers, magnetic or non-magnetic is divided geometrically into two or more divisions, the windings are wound to each division as two or more equivalent windings to support magnetic current directions, and are connected in parallel. Two or more numbers of equivalent windings that are wound and connected in parallel by principal winding, which is first part of the winding wound, are connected in series. Two generated ends are used as secondary winding ones. After part of the winding is wound by this method, since the remaining parts are as parallel branches on a magnetic or non-magnetic core, it causes a trouble for manufacture. The winding that is wound in parallel causes expansion of secondary sizes, any materials used become expensive, and workmanship hours increase. Connection process done between the wound windings makes the workmanship difficult, and increases any probable workmanship defects.

DESCRIPTION OF INVENTION Purpose of this method is to destroy effect of external magnetic fields that affect operation of the transformer in various directions by applying a different winding method except magnetic flux generated by a primary circuit in low power current transformers. In this invention, basic principle is that, when you take a look to whole winding, half of total number of windings is wound in a straight way, and the other half is wound in a reverse direction.

COMPONENTS AND PARTS OF INVENTION

1. Primary winding

2. Reverse winding with respect to primary winding

3. Core

4. Winding inlet

5. Winding outlet SHORT EXPLANATION OF DRAWINGS

Figure 1 : View of the winding that is wound a full cycle in straight direction, and that its half part is wound in reverse direction.

EXPLANATION OF INVENTION

The winding technique subject to the method includes winding of the magnetic or non-magnetic core (3) by turning half of number of the windings in a straight direction until completing a full cycle, and by turning the other half in a reverse direction to support in same direction as a magnetic field generated by half of number of the windings wound first independent from geometrical shape of the magnetic or non-magnetic core (3). In such winding technique, half of number of the windings to be wound independent from geometrical shape of the magnetic or non-magnetic core (3) in a straight direction (1) so that the winding end finish wherever it begins. The other half of the winding is turned in a reverse direction (2) so that its magnetic direction remains same, and is wound on the core by completing a full cycle so that the winding end finish wherever it begins. Thus, stresses occurred on the windings are collected in a vectorial way. Half of such winding may be wound twice as one turn is rightward and the other one is leftward as well as itt may be wound once.

With this method, any effects caused by external magnetic fields on a secondary winding are destroyed in low power current transformers. Secondary current generated by a magnetic field caused by current flowing throughout Z axis includes real secondary current of the transformer. Magnetic fields generated by external currents in different direction and angle from Z axis causes stresses on the windings (1 , 2) with the secondary winding spindling on the core and going around it, and such stresses are added to real rating of the transformer, and causes fault of the transformer. With the winding technique subject to the patent, since the secondary winding spindles on the core, such effect occurred on the windings is destroyed. When you looking at a secondary winding from upward, since the winding spindles on the core, the windings occurs through axis of the magnetic core up to 30 times the winding between starting end (4) and finishing end (5) of the winding. When you take a look from side of the primary winding, a magnetic field generated by the primary current never causes any effect on these windings. But, external magnetic fields generated around the transformer create a stress and cause fault of the transformer.

In this method, in consideration of each winding generated by winding plies, a winding is generated in reverse direction, and any effect of external magnetic fields on the transformer is destroyed. With this method, half of number of the windings shall be ended at the starting point (4) of the winding, and is wound on the magnetic or non-magnetic core in straight direction to complete a full cycle. The other half of the winding is wound in reverse direction to complete a full cycle, and thus the winding is competed so that the finishing point shall be ended at the starting point (4) of the winding. Once the winding is completed, any reverse directional windings (2) are also generated up to number of the straight directional windings (1) through perimeter of the core. Thus the winding generated as a result of the spindling of the secondary winding on the core and going throughout perimeter of the core create a reverse directional winding up to rating of ampere winding under effects of external magnetic fields, and eliminate interaction of these external ampere windings. The reverse ampere windings generated by these windings destroy the effect of the external magnetic fields.