Energy accumulator with offsetting mechanism and on-load regulator

FIELD: electricity.

SUBSTANCE: invention suggests energy accumulator with offsetting mechanism and on-load regulator comprising energy accumulator having simple and inexpensive construction, which may suppress load moment to ensure stable operation. Offsetting mechanism in-built to energy accumulator comprises protruding part 8, thrust 9 and offsetting camp 17. The protruding part is fixed to the bottom part of eccentric cam 2. Thrust 9 is fixed to the end of protruding part 8. Offsetting camp 17 is shaped as isosceles triangle giving apex angle equal in essence to 90 degrees and fixed to the top part of body part 5 that accumulates energy. Offsetting camp 17 coming in contact with thrust 9 through accumulated energy of body part 5 makes crank 6 rotating and moves latch 7 to stand-by position.

EFFECT: improved stability with simultaneous suppression of load moment.

4 cl, 9 dwg

 

AREA of TECHNOLOGY

Present group of inventions relates to a switching device branches of the windings under load and the battery energy with bias mechanism.

The LEVEL of TECHNOLOGY

In recent years, the transformers, etc. are often equipped with a switching device branches of the windings under load, which switches the voltage while applying a load current to the transformer. It is important that the switching device branches of the windings under load led to the rapid switching operation, the branches, and a large switching time receive from the energy accumulator. In the battery energy all the accumulated force of the spring is released immediately to rotate the crank at high speed and thereby to perform the switching operation of the tap changer connected to the crank, in a short time.

The energy accumulator contains a latch, which engages with the recess formed in the crank, and that keeps the crank from rotating. Latch disengaged with the groove, as soon as the force of the spring is released, but after the completion of the switching operation of the tap changer and turn the crank to the preset value, the latch again engages with the recess of the crank. The position in which the latch engages with the recess of the crank, called�is the standby position.

Meanwhile, if there are violations or deviations in the operation of the tap changer, and the required switching point to perform the switching operation of the tap changer increases, it is possible that the amount of rotation of the crank will be insufficient, resulting in the seizure of the crank reaches the position corresponding to the position of the latch, i.e., in some cases, the latch is returned to the standby position. In this case, the latch will not catch on with the groove and keep the crank from rotating. Accordingly, the battery energy will be difficult to maintain the energy of the spring.

Therefore, the energy accumulator is equipped with a shifting mechanism (see, for example, Patent document 1) that functions as a safety mechanism for those situations when the latch is moved to the standby position. The bias mechanism is a mechanism which forcibly moves the latch to the standby position after completion of the main battery power.

Next, with reference to Fig.8 and Fig.9, describes in detail an example of a known battery energy with the shifting mechanism in the switching device branches of the windings under load. As shown in these drawings, the energy accumulator includes a drive shaft 10 connected to an electric drive mechanical�IOM (not shown), and eccentric Cam 11 which is attached to the drive shaft 10.

As shown in Fig.8, the eccentric Cam 11 is connected with the winding part of Cabinet 12, which is connected with the drive shaft 10 and the eccentric Cam 11 is moved linearly reciprocating synchronously with it. The winding body part 12 is formed in such a way that when moving linearly, it reaches its set position, it outputs the latch 15 out of engagement with the groove of the crank 14, as described later.

Fig.9 illustrates the situation when the winding body part 12, shown in Fig.8, is disconnected. From the bottom of Cabinet crown part 12 is a coil spring (not shown) and accumulates the energy of the body part 13. Accumulating the energy of the body part 13 is moved linearly reciprocating along with catchy part of Cabinet 12 by means of a spring.

The crank 14, which rotates synchronously with the movement of the energy storage of Cabinet parts that are attached to the bottom side of the energy storage case part 13, and the tap changer (not shown) is connected to the crank 14. In addition, the latch 15 is located next to the crank 14. The latch 15 is made to engage with the groove of the crank 14 in the standby position.

According to this battery energy when the drive shaft freshets when receiving a drive force from the electric driving mechanism, eccentric Cam 11 is rotated together with drive shaft 10. As a result the winding body part 12, which is connected with the eccentric Cam 11 is moved linearly. The winding body part 12, moving linearly, making the effort to one end of the spring, thus forcing you to move linearly reciprocating the energy storage housing part 13, which is in contact with the spring. At this time, since the latch 15 in the standby position holds the crank 14 from rotation, the crank 14 is not rotating, even if the energy storage body part 13 is moved linearly. Therefore, the spring accumulates the force of the spring during linear movement of the crown Cabinet portion 12.

When the winding body part 12, which moves linearly, reaches a preset position, it disengages the recess of the crank 14 and the latch 15, and thus the latch 15 is released. As a result, the spring releases the spring force, and accumulates the energy of the body part 13 is moved linearly with high speed due to the force of the spring and the crank 14, and in parallel with the energy storage Cabinet part 13 that rotates at high speed. The crank 14 transmits rotational force to the tap changer, the tap changer gets the opportunity to carry out the operation of switching branches with highly� speed.

The following describes the design of the shifting mechanism that is built into the battery energy. Shifting mechanism includes a shift Cam 16 which is shaped and formed on the eccentric Cam 11, and a stop 19, which is attached to the energy storage Cabinet portion 13 (see Fig.9). When rotated together with the eccentric Cam 11 bias the Cam 16 abuts against the stop 19 and pushes the stop 19 in accordance with the shape of this Cam.

According to this displacing mechanism displaces the Cam 16 pushes the stop 19, using the torque of the drive shaft 10, thereby forcing him to move by sliding the energy storage housing part 13, which causes the rotating crank 14 connected with the energy storage part of Cabinet 13.

Therefore, if there are variations in the switching and the time required for the switching operation of the switch windings increases, it is possible to avoid a situation in which the amount of rotation of the crank 14 will be insufficient. Accordingly, the latch 15 can confidently move to the standby position in which it engages with the recess of the crank 14. According to the energy accumulator containing the above described shifting mechanism, even if there are deviations in the work or an accident, the latch 15 is always meshes with you�the MCA of the crank 14, and thus, the battery energy can stably maintain the strength of the spring.

ASSOCIATED TECHNICAL DOCUMENTS

Patent document 1: JP 2008-258259 A

However, the known shifting mechanism has the following disadvantages.

When shifting the Cam 16, which rotates together with the eccentric Cam 11, pushes the stop 19, the contact point between the bias the Cam 16 and the bracket 19 is removed from the center of rotation of eccentric Cam 11.

Therefore, during rotation of the bias of the Cam 16, the load torque increases. In addition, the rotation of the bias of the Cam 16 with the eccentric Cam 11, the pressure angle increases, thereby increasing the resistance of the stop 19. It also leads to an increase of load torque.

When the load torque in the shifting mechanism is great to ensure stable operation of the shifting mechanism, it is necessary that the components that form the mechanism, had a very high shape accuracy, and therefore it is necessary to provide very precise manufacturing of these components. Additionally, in the above-described shifting mechanism having a special form of the bias the Cam 16 is attached to the eccentric Cam 11. Work on the mount are difficult, and the number of stages of production increases.

As described above, the bias mechanism back�et function as a safety mechanism for the switching operation of the tap changer, when deviations occur in the work or crash, and it is therefore necessary to bias the mechanism worked steadily. Therefore, it is not allowed to decrease the accuracy of the components, which leads to the violation of the stability of the mechanism, and requires a large number of manufacturing stages. Accordingly, the manufacturing cost is increased, which deteriorates the economic efficiency.

The present invention proposes a variant of the decision of the disadvantages described above, and the aim of the present invention is to provide a battery energy with bias mechanism and the tap changer of the windings under load with the battery energy, which is of inexpensive and simple construction, and which provides a stable drive with simultaneous suppression of the load torque.

Summary of the INVENTION

This goal is achieved by the energy accumulator with shift mechanism according to the invention. The energy accumulator includes an eccentric Cam which is associated with the drive shaft and moves synchronously with it; the winding frame part, which is connected to the eccentric Cam and is moved linearly reciprocating synchronously with the eccentric Cam; a spring that is attached to the crown of Cabinet parts; accumulating �energy housing part, which is connected to the winding part of Cabinet by a spring and which moves linearly reciprocating synchronously with the winding part of Cabinet; crank, which is connected with the energy storage part of Cabinet and rotates synchronously with the energy storage Cabinet part; and a latch, which engages with the crank in a predetermined standby position to block rotation of the crank and to carry out the compression of the springs.

Bias mechanism built into the energy accumulator includes: a protruding portion, which is attached to the eccentric Cam; a lock that is attached to the end of the protrusion; and displacing the Cam, which is attached to the accumulating energy of Cabinet parts. Bias the Cam in contact with the stop to rotate the crank by accumulating the energy of Cabinet parts and move the latch to the standby position.

BRIEF description of the DRAWINGS

Fig.1 is a perspective view of a typical variant embodiment, on the top view.

Fig.2 is a perspective view of a typical variant of the incarnation, on the form below.

Fig.3 A-3F - types in plan, illustrating the operation of the model variant implementation.

Fig.4 is a graph for comparing the load torque in the known device and the device according to the embodiment of the invention.

Fig.5 is a perspective view of another Varian�and implementation.

Fig.6 is a graph for comparing the load torque in the known device, the device according to a typical embodiment of the embodiment and the device according to the second variant implementation.

Fig.7 is a graph for comparing the rotation angle depending on the magnitude of displacement of the shifting Cam device according to a typical embodiment of the embodiment and the device according to the second variant of the incarnation

Fig.8 is a perspective view illustrating a known battery energy with bias mechanism.

Fig.9 is a perspective view illustrating a known battery energy with bias mechanism.

DETAILED DESCRIPTION

Hereinafter described in detail, with reference to Fig.1-7, the battery energy with bias mechanism according to the variants of embodiment of the invention. Here the basic construction and operation of the energy accumulator are the same as in the known device illustrated in Fig.8 and Fig.9, and has distinctive features of the bias mechanism.

Design of battery energy

Initially with reference to Fig.1 and Fig.2 describes in detail the design of the energy accumulator according to the considered variants of embodiment of the invention. As shown in Fig.1, the energy accumulator includes a drive shaft 1 connected to an electric drive mechanism (not shown), and an eccentric Cam 2, which moves �synchro with the drive shaft 1 and attached to the drive shaft 1. The spring 3 is located next to the eccentric Cam 2, and accumulates the energy of the body part 5 is located under the eccentric Cam 2 and the spring 3 so that it contacts with the spring 3. Accumulating the energy of the body part 5 is moved linearly reciprocating synchronously with the winding of Cabinet part 4, as will be discussed later, by means of a spring 3.

As shown in Fig.2, the winding body part 4 is located on the top side of the accumulating energy-upholstered, part 5. The winding body part 4 is moved linearly reciprocating synchronously with the eccentric Cam 2. Fig.1 is a view in perspective of a given variant embodiment, when viewed from above, but to facilitate understanding of the winding body part 4 is disconnected.

As shown in Fig.2, the crank 6 is connected to the bottom side of the energy storage Cabinet part 5. The crank 6 rotates synchronously with accumulating energy-upholstered, part 5, and transmits rotational force to the tap changer (not shown). The latch 7 is located near the crank 6 so as to be capable of engagement and disengagement with the recess 6A of the crank 6.

Latch 7 engages with the recess 6A of the crank in a predetermined standby position in which it blocks the rotation of the crank 6, the �n is the compression of the spring 3. The engagement of the latch 7 with the groove 6A of the crank 6 is implemented in such a way that they reteplase under the action of the clockwork corps part 4 when moving linearly by a predetermined amount. The energy accumulator includes the components described above, i.e. the drive shaft 1, the eccentric Cam 2, the spring 3, the spring housing part 4, the energy storage housing part 5, the crank 6 and the latch 7.

Battery energy

Next will be described the operation of the energy accumulator having a structure described above.

When the drive shaft 1 is rotated upon receiving drive force from the electric driving mechanism, the eccentric Cam 2 rotates synchronously with the drive shaft 1, and the winding body part 4, which is connected with an eccentric Cam 2 is moved linearly. The winding body part 4, which is moved linearly, making the effort to one end of the spring 3, thus causing the energy storage housing part 5, which is in contact with the spring 3 to move linearly reciprocating.

The crank 6, associated with the energy storage Cabinet part 5 tends to rotate in accordance with the linear reciprocating movement of the energy storage Cabinet part 5, the latch 7 is in the standby position interlocking with the groove 6A of the crank 6. So rotation�communication of the crank 6 is blocked and spring 3 accumulates the force of the spring in accordance with the movement of the clockwork corps part 4.

When the winding body part 4 is linearly moved by a predetermined amount, it outputs the latch 7 out of engagement with the groove 6A of the crank 6. Accordingly, the latch 7 is disengaged and the spring 3 releases the spring force. As a result, by receiving the spring force, released by the spring 3, the energy storage body part 5 is linearly moved at a high speed, and a crank 4, which moves synchronously with the energy storage part of Cabinet, rotating at a high speed. The crank 6 transmits rotational force to the tap changer, the tap changer gets the opportunity to carry out the switching operation at high speed.

The design of the shifting mechanism

Feature of the invention is that the above-described battery energy uses described below of the bias mechanism. As shown in Fig.1, the bias mechanism includes a protruding portion 8, the stops 9 and displaces the Cam 17. The protruding portion 8 attached to the bottom side of the eccentric Cam 2, the stop 9 is attached to the end of the protrusion 8.

Bias the Cam 17 is made in the shape of an isosceles triangle, with the angle at the vertex of essentially 90 degrees, and is attached so �the sides of the peak from the right and left edges on the upper side of the energy storage Cabinet part 5 facing each other. Bias the Cam 17 is moved by sliding, when the stop 9 located on the side of the eccentric Cam 2, comes into contact with him, and accumulates the energy of the body part 5 is moved by sliding synchronously with the shifting of the Cam 17.

When the energy storage body part 5 is moved by sliding, associated with the crank 6 rotates synchronously, but here bias the Cam 17 is configured such that, when the latch 7 is moved to the standby position, the stop 9 reaches the top of the bias of the Cam 17. That is, bias the Cam 17 is in contact with the stop 9, to rotate the crank 6 via the energy storage housing part 5 and to move the latch 7 is in the standby position.

Work shifting mechanism

Next will be described the operation of the bias mechanism according to this variant embodiment, with reference to Fig.3A-3F. When the stop 9 comes in contact with a shifting Cam 17 (Fig.3A), displacing the Cam 17 moves by sliding, and when the eccentric rotation of the Cam 2 in the counterclockwise direction, the stop 8 bias pushes the Cam 17 to the right (in the drawing), and bias the Cam 17 is moved by sliding even further (Fig.3B-3D).

As a result, the energy storage body part 5, which is attached to bias the Cam 17, also moved�tsya by sliding to the right (in the drawing). Further, when the latch 7 engages with the recess 6A of the crank 6 and is moved to the standby position (Fig.3E-3F), the emphasis 9 reaches the top of the bias of the Cam 17.

The BENEFICIAL EFFECTS of the INVENTION

Next will be described the beneficial effects of this variant embodiment. Fig.4 presents a graph that is built based on the following assumptions: in the direction of movement of the attached load of 10 Newton; on the horizontal axis, the amount of displacement accumulating energy-upholstered, part 5, which is moved by sliding under the action of the bias mechanism according to this variant embodiment, or accumulating energy-upholstered, part 13, which is moved by sliding under the action of known shifting mechanism; on the horizontal axis, the load torque for each size movement.

As shown in Fig.4, in the standby position, before accumulating the energy of the body part 5 will start moving by sliding, the load torque in this embodiment is only 1/3 or so in comparison with the known device. Further, the emphasis 9 attached to the eccentric Cam 2, the bias pushes the Cam 17, thereby causing the move by sliding the energy storage housing part 5. Accordingly, here the distance from the center rasenumentries Cam 2 to the contact point between the stop 9 and displaces the Cam 17 is not changed.

Thus, according to this variant embodiment, even if the rotation of the eccentric Cam 2 continues, the pressure angle between the stop 9 and displaces the Cam 17 is always constant. As a result, the load torque at the point of contact between the stop 9 and displaces the Cam 17 is reduced by increasing the magnitude of the displacement accumulating energy-upholstered, part 5.

That is, according to this variant embodiment, unlike the known device in which the load torque increases as the rotation of the eccentric Cam 11, the load torque acting on the drive shaft 1, gradually decreases. Thus, using this embodiment, it is possible to significantly reduce the load torque. In the example illustrated in Fig.4, the point at which the load torque of the bias mechanism in the known device becomes maximum, the load torque of the bias mechanism according to this alternative embodiment is essentially 1/8 of the load torque in the known device.

According to this variant embodiment, in which the load torque is suppressed as described above, the bias mechanism can operate stably without having high accuracy of component shapes, and therefore high accuracy of manufacture, in contrast to the known device. Consequently, slipping�th mechanism, which serves as a safety mechanism when the latch 7 is not moved to the standby position, can provide high reliability.

Furthermore, according to this variant embodiment, in addition to the lack of necessity to use expensive precision components, in comparison with the known device for the manufacture of which requires a large number of stages, here is a simple design, and thus work on fixing the bias of the Cam 17 and the stop 9 will be very simple. Bias the Cam 17 is made in the shape of an isosceles triangle having the angle at the vertex of essentially 90 degrees, and thereby the angle of rotation, the load torque and the magnitude of the displacement is well balanced in an optimal way. This form facilitates the machining, and economic efficiency increases significantly.

Additionally, due to the fact that bias the Cam 17 is made in the shape of an isosceles triangle having the angle at the vertex of essentially 90 degrees, the duration of contact with the stop 9 can be increased, since the side that is in contact with the stop 9 is inclined. Accordingly, while the rotation angle of the crank 6 is small, can be obtained a large amount of movement, and thereby, the latch 7 can be surely moved to the expected position�Oia.

With the shifting mechanism according to this variant embodiment, which can provide a large amount of displacement even at a small angle of rotation of the crank 6, as described above, the battery energy is not violated. Therefore, the shifting mechanism according to this variant embodiment is very suitable as a safety mechanism of the energy accumulator, i.e. a mechanism that acts after the main battery power.

ANOTHER VARIANT of the INCARNATION

Although there have been described specific embodiments, they were presented for example only and do not limit the scope of the present invention. Moreover, the described methods and devices can be implemented in many other forms; furthermore, there are various exceptions, substitutions and changes in the described here variants of implementation, without going beyond the limits of the invention.

The attached claims and its equivalents encompass these forms or modifications within the essence and scope of the invention. For example, another variant of an embodiment of the present invention is a device of load regulation under load, which includes the energy accumulator with the above-described shifting mechanism.

The shape of the contact area between the bias cul�ccom and emphasis may be different, if required and by regulating the torque of the load shifting mechanism and steering angle, etc., of focusing and shifting of the Cam, the shape of the bias of the Cam may be adjusted in accordance with the required load torque for switch-over branches.

More specifically, as illustrated in Fig.5, instead of the bias of the Cam 17, having the shape of an isosceles triangle may be used to bias the Cam 18 having the shape of a thin square brackets. Using biased Cam 18, as shown in the graph of Fig.6, the load torque can be further reduced.

However, if we compare the relationship between the rotation angle and the magnitude of the displacement for displacing the Cam 17 and the bias of the Cam 18, as shown in Fig.7, the bias mechanism to bias the Cam 17 will be preferred. On the chart of Fig.6 bias mechanism to bias the Cam 18 has a maximum amount of movement when the rotation angle of 40 degrees, and the bias mechanism to bias the Cam 17 and the known bias of the maximum value of the displacement, which essentially correspond to each other with appropriate configuration.

The LIST of REFERENCE POSITIONS

1, Drive shaft 10

2, the Eccentric Cam 11

3 Spring

4, 12 the Winding body part

5, 13 Accumulating energy cor�Usna part

6, 14 Crank

7, Latch 15

8 standout

9, 19 Emphasis

16, 17, 18 Bias the Cam.

1. Battery energy with bias mechanism that contains:
eccentric Cam, which is connected with the drive shaft and moves synchronously with it.
the winding frame part, which is connected to the eccentric Cam and is capable of linear reciprocating movement synchronously with the eccentric Cam;
the spring, which is attached to the crown of Cabinet parts;
the energy storage housing portion, which is connected to the winding part of Cabinet through the spring and is capable of linear reciprocating movement synchronously with the winding part of Cabinet;
the crank, which is connected with the energy storage part of Cabinet and is mounted for rotation synchronously with the energy storage part of Cabinet; and
the latch, which engages with the crank in a predetermined standby position to block rotation of the crank and to carry out the compression of the spring,
in this case the bias mechanism includes:
the protruding portion, which is attached to the eccentric Cam;
the emphasis attached to the end of the protrusion; and
biased Cam which is attached to the energy storage Cabinet portion, the biased Cam con�draws up, with emphasis, to rotate the crank via the energy storage Cabinet part and move the latch to the standby position.

2. Battery energy with bias mechanism according to claim 1, in
which displaces the Cam has a shape of isosceles triangle.

3. The switching device branches of the windings under load, which contains the energy accumulator with shift mechanism according to claim 1.

4. The switching device branches of the windings under load, which contains the energy accumulator with shift mechanism according to claim 2.



 

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4 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: invention relates to shunt resistance circuit breaker with control element and electrical circuit. The electrical circuit includes the main branch line (1) and resistible branch line (2) being connected in parallel with the main branch line (1). Each branch line contains contact (11, 21) and vacuum circuit breaker (12, 22). Resistible branch line (2) includes also a resistor (30). The main contact of rotary selector is always actuated before resistible contact (21). In accordance with the invention the control element is implemented so that it turns the main contact (11) in the same rotational direction during controlling operations. The invention also considers the related control method for shunt resistance circuit breaker and use of the circuit breaker.

EFFECT: provision of simple control function ensuring main contact actuation before resistible contact.

28 cl, 14 dwg

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and can be used to transmit rotary motion. Diverter switch rotary motion transmitter comprises the element to convert oscillating rotary motion of drive shaft (1a) in unidirectional rotation of housing (2) relative to driven shaft (2a). Motion transmitter comprises intermediate housing (3) arranged to revolve about intermediate (3a). Mechanical element (17), accumulating energy, is coupled with driven housing (2). Proposed element converts rotation of drive shaft (1a) into unidirectional rotation of driven shaft and comprises intermediate element (101) licked up with drive shaft (1a) via crank mechanism (100). Aforesaid element (101) is designed to display additional displacement of transmitted rotation and is furnished with hooking appliance (102) to convert linear motion into unidirectional rotation of intermediate shaft (3a) via drive elements (103).

EFFECT: higher reliability in extreme temperature conditions.

15 cl, 6 dwg

FIELD: electricity.

SUBSTANCE: invention refers to electric engineering and can be used to switch off the three-phase current. Transformer-three-phase current switch unit includes three-circuit transformer. Its two parallel cophased windings are made with neutral terminals between which groups of controlled and uncontrolled semiconductor rectifiers are incorporated. One of the points of amplifier connection is grounded.

EFFECT: decrease in dimensions.

3 cl, 3 dwg, 1 tbl

Energy accumulator // 2380782

FIELD: electric engineering.

SUBSTANCE: windup sleds and provided, as well as hopping sleds that intermittently follow their motion after unblocking. They are directed by three parallel guide rods. Both windup sleds and hopping sleds have three linear bearings each. Each of these linear bearings covers accordingly one of three guide rods.

EFFECT: simplified design and improved reliability.

4 cl, 4 dwg

Tap switch // 2385514

FIELD: electric engineering.

SUBSTANCE: switch is closed on top with head that comprises head flange, in which driving shaft leading outside is installed. At this head flange there might be an available upper transmission step is arranged, or by means of compatible flange, a flywheel drive is installed without necessity in additional various units, in particular special head of switch.

EFFECT: provision of possibility to implement actuation of insulated switching shaft only with one head of switch, independently on type of drive.

2 cl, 4 dwg

FIELD: electrical engineering.

SUBSTANCE: proposed transformer(s)-switch assembly comprises transformer(s) with primary and n in-phase windings where n is an integer greater than unity while m is the number of phases. Said windings have phase and neutral terminals that connect said winding in appropriate phase alternation sequence in between nm groups of controlled semiconductor gates connected in series to make a ring. Phase terminals of in-phase windings can be connected phase-by-phase, while one point between said controlled semiconductor gates is connected to ground.

EFFECT: reduced overall dimensions and faster operation.

3 cl, 1 dwg

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