CN116913720A - Transmission device for high-voltage semi-combined electrical apparatus - Google Patents
Transmission device for high-voltage semi-combined electrical apparatus Download PDFInfo
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- CN116913720A CN116913720A CN202311166781.7A CN202311166781A CN116913720A CN 116913720 A CN116913720 A CN 116913720A CN 202311166781 A CN202311166781 A CN 202311166781A CN 116913720 A CN116913720 A CN 116913720A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 70
- 229910052573 porcelain Inorganic materials 0.000 claims description 39
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
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Abstract
The invention relates to a transmission device for a high-voltage semi-combined electrical apparatus, which comprises: the indicating arm is provided with a first end and a second end, and the second end of the indicating arm is connected with the second end of the connecting shaft; a first sensor located at a first predetermined position on the housing capable of sensing the first end of the indicator arm and outputting a first signal indicative of the first end of the indicator arm being at the first predetermined position; a second sensor located at a second predetermined position on the housing capable of sensing the first end of the indicator arm and outputting a second signal indicative of the first end of the indicator arm being at the second predetermined position; and a third sensor located at a third predetermined position on the housing, capable of sensing the first end of the indication arm and outputting a third signal indicating that the first end of the indication arm is at the third predetermined position, wherein the indication arm rotates with rotation of the connection shaft, and the opening state, the closing state or the fault state of the isolating switch and the grounding switch are determined according to the first signal, the second signal and the third signal.
Description
Technical Field
The invention relates to the field of high-voltage semi-combined electrical appliances, in particular to a transmission device for a high-voltage semi-combined electrical appliance.
Background
The high-voltage semi-combined electrical appliance is the main power control equipment in the power plant. Through the switching-on and switching-off control of the isolating switch, when the power system normally operates, the high-voltage half-combined electrical appliance can cut off no-load and switch on load currents of various electrical equipment, and when the power system fails, the high-voltage half-combined electrical appliance is matched with relay protection, so that fault currents can be rapidly cut off, and the accident range is prevented from being enlarged.
Therefore, it is very important to determine whether the opening and closing of the isolating switch of the high-voltage half-combiner is in place. In the existing power plant, for example, whether the opening and closing of the isolating switch is in place is judged by measuring the air pressure (internal signal) in the high-voltage half-combined electrical apparatus by using an air pressure meter arranged in the high-voltage half-combined electrical apparatus, however, the indirect judgment mode is greatly influenced by environment and has single signal source, and the opening and closing state of the isolating switch cannot be accurately and timely reflected.
Disclosure of Invention
In view of the foregoing, it is an object of the present invention to provide a transmission device for a high-voltage half-combiner, which can easily eliminate a fault during power transmission of the high-voltage half-combiner by obtaining an external signal indicating the on/off state of a disconnecting switch in the high-voltage half-combiner through a sensor. In addition, the external signal is combined with an internal signal (such as air pressure) for judging the opening and closing state of the isolating switch in the high-voltage half-combined electrical apparatus, so that the opening and closing state of the isolating switch can be accurately and timely judged, and the requirement on 'one-key sequential control' of the novel breaker equipment is met. Moreover, the acquisition of the external signal is basically not influenced by the external environment, and the external signal has enhanced capability of resisting external interference.
According to an embodiment of the present invention, there is provided a transmission device for a high-voltage half-combined electrical apparatus including a plurality of porcelain bushing assemblies, each porcelain bushing assembly including a housing; the isolating switch and the grounding switch are arranged in the shell; the transmission arm is arranged outside the shell and is provided with a first end and a second end; the connecting axle sets up to pass the casing, the connecting axle has first end and second end, the first end of connecting axle is located the casing in order to control isolator's divide/shut brake and earthing switch divide/shut brake, the second end of connecting axle is located outside the casing, the second end of transmission arm is connected with the second end of connecting axle, the first end of transmission arm is connected to external actuating mechanism, in the normal operating condition of isolator and earthing switch, every time external actuating mechanism drives the transmission arm, the second end of transmission arm drives the connecting axle and rotates predetermined angle round the axial of connecting axle, the rotation of connecting axle makes isolator and earthing switch once between separating brake state and closing state, its characterized in that, transmission for high-voltage half-combiner includes: the indicating arm is provided with a first end and a second end, and the second end of the indicating arm is connected with the second end of the connecting shaft; a first sensor located at a first predetermined position on the housing capable of sensing the first end of the indicator arm and outputting a first signal indicative of the first end of the indicator arm being at the first predetermined position; a second sensor located at a second predetermined position on the housing capable of sensing the first end of the indicator arm and outputting a second signal indicative of the first end of the indicator arm being at the second predetermined position; and a third sensor located at a third predetermined position on the housing, capable of sensing the first end of the indication arm and outputting a third signal indicating that the first end of the indication arm is at the third predetermined position, wherein the indication arm rotates with rotation of the connection shaft, the first predetermined position corresponds to a position of the first end of the indication arm when the isolation switch is in the on state and the ground switch is in the off state in a normal operation state, the second predetermined position corresponds to a position of the first end of the indication arm when the isolation switch is in the off state and the ground switch is in the off state in a normal operation state, the third predetermined position corresponds to a position of the first end of the indication arm when the isolation switch is in the off state and the ground switch is in the on state in a normal operation state, and the off state, the on state, or the fault state of the isolation switch and the ground switch are determined according to the first signal, the second signal, and the third signal.
The working end of the switching-on and switching-off working unit of the isolating switch in the high-voltage half-combined electrical appliance is provided with the indicating arm and the sensor, so that an external signal indicating the switching-on and switching-off state of the isolating switch in the high-voltage half-combined electrical appliance can be additionally obtained, and faults in the power transmission process of the high-voltage half-combined electrical appliance can be easily eliminated; the external signal is combined with the internal signal for judging the opening and closing state of the isolating switch in the high-voltage half-combined electrical apparatus, so that whether the isolating switch is opened or closed in place can be accurately and timely judged. In addition, the external signal is obtained basically without being influenced by external environment, and has enhanced capability of resisting external interference.
In the transmission device for a high-voltage half-combiner according to the present invention, the transmission arm further has a first opening provided on the second end of the transmission arm, the second end of the transmission arm is sleeved on the second end of the connection shaft through the first opening, the inner spline is provided on the inner wall of the first opening, the connection shaft further has an outer spline provided on the second end of the connection shaft, wherein the outer spline on the second end of the connection shaft is engaged with the inner spline on the inner wall of the first opening, thereby connecting the second end of the transmission arm with the second end of the connection shaft.
Through setting up the spline, with the second end engagement connection of drive arm and connecting axle's second end, can realize by the accurate control of drive arm to connecting axle rotation angle, improve the accuracy that the sensor detected the instruction arm.
In the transmission device for a high-voltage half-combiner according to the present invention, the indicating arm further has a second opening provided on the second end of the indicating arm, the second end of the indicating arm is sleeved on the second end of the connecting shaft through the second opening, and the inner spline is provided on the inner wall of the second opening, wherein the inner spline on the inner wall of the second opening is engaged with the outer spline on the second end of the connecting shaft, so that the second end of the indicating arm is connected with the second end of the connecting shaft.
Through setting up the spline, with the second end engagement connection of instruction arm and connecting axle's second end, can realize by the rotation of connecting axle to the accurate control of instruction arm rotation angle, improve the accuracy that the sensor detected the instruction arm.
In the transmission device for a high-voltage half-combiner according to the present invention, the second end of the indicating arm is closer to the housing than the second end of the transmission arm.
In the above manner, a specific positional arrangement relationship of the index arm and the actuator arm is provided.
In the transmission device for the high-voltage half-combined electrical apparatus according to the invention, the first signal indicates that the disconnecting switch is in a closing state and the grounding switch is in a separating state; the second signal indicates that the isolating switch is in a brake-separating state and the grounding switch is in a brake-separating state; the third signal indicates that the isolating switch is in a switching-off state and the grounding switch is in a switching-on state; and determining that the isolating switch and the grounding switch are in a fault state and outputting a fault signal representing the fault state when the first to third sensors do not output any one of the first to third signals for a predetermined time.
The on-off state or the fault state of the isolating switch is indicated by different sensor sensing signals, and the state of the isolating switch can be easily determined by external signals.
In the transmission for a high-voltage half-combiner according to the present invention, the first sensor, the second sensor, and the third sensor include position sensors.
In this way, a specific form of three sensors is provided.
In the transmission device for a high-voltage half-combiner according to the present invention, the first end of the indication arm has a protrusion protruding from the middle, and the first to third sensors determine that the first end of the indication arm is located at the corresponding predetermined position by sensing the protrusion, thereby determining the on/off states of the isolating switch and the ground switch.
In this way, a specific arrangement of the indicator arm is provided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 shows an external view of a high-voltage half-combiner.
An enlarged view of a portion a of a first porcelain bushing assembly of the high voltage half-combiner of fig. 1 and a transmission for the high voltage half-combiner according to an embodiment of the present invention mounted on the portion a of the first porcelain bushing assembly are shown in fig. 2A.
Fig. 2B shows the form of an internal spline provided on the inner wall of the first bore.
The form of external splines provided on the second end of the connecting shaft is shown in fig. 2C.
The form of the internal spline provided on the inner wall of the second bore is shown in fig. 2D.
Fig. 3 shows an application example of the transmission device for a high-voltage half-combiner according to the embodiment of the present invention to each porcelain bushing assembly of the high-voltage half-combiner.
Wherein, the reference numerals are as follows:
1: high-voltage semi-combined electric appliance
10: control box
12: porcelain sleeve part
14: drive unit
121: first porcelain bushing component
122: second porcelain bushing assembly
123: third porcelain bushing assembly
L: connecting rod
1211: shell body
1213: driving arm
1213a: first end of the transmission arm
1213b: second end of the transmission arm
1215: connecting shaft
1215b: second end of the connecting shaft
O1: first open hole
2: transmission device for high-voltage semi-combined electrical apparatus
21: indicating arm
21a: first end of indicator arm
21b: the second end of the indicator arm
23: first sensor
25: second sensor
27: third sensor
O2: second open hole
P: projection part
P1: a first predetermined position
P2: a second predetermined position
P3: and a third predetermined position.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
The invention provides a transmission device for a high-voltage semi-combined electrical apparatus. Fig. 1 shows an external view of a high-voltage half-combiner, fig. 2A shows an enlarged view of a portion a of a first porcelain bushing assembly of the high-voltage half-combiner of fig. 1 and a transmission device for the high-voltage half-combiner according to an embodiment of the present invention mounted on the portion a of the first porcelain bushing assembly, fig. 2B shows a form of an internal spline provided on an inner wall of a first opening, fig. 2C shows a form of an external spline provided on a second end of a connecting shaft, and fig. 2D shows a form of an internal spline provided on an inner wall of a second opening. The transmission device for a high-voltage half-combiner according to the present invention will be described with reference to fig. 1 to 2D.
As shown in fig. 1, the high-voltage half-combiner 1 includes a control box 10, a porcelain bushing portion 12, and a driving portion 14.
The porcelain bushing portion 12 is provided on the control box 10 and includes a first porcelain bushing assembly 121, a second porcelain bushing assembly 122, and a third porcelain bushing assembly 123.
The first porcelain bushing assembly 121 includes a first terminal 121a and a second terminal 121b, and the first porcelain bushing assembly 121 is connected to a first phase of electric power through the first terminal 121a and the second terminal 121 b.
The second porcelain bushing assembly 122 includes a first terminal 122a and a second terminal 122b, and the second porcelain bushing assembly 122 is connected to a second phase of electrical power through the first terminal 122a and the second terminal 122 b.
The third porcelain bushing assembly 123 includes a first terminal 123a and a second terminal 123b, and the second porcelain bushing assembly 123 is connected to a second phase of electric power through the first terminal 123a and the second terminal 123 b.
The switching-on/off operation units including the isolating switch and the grounding switch are respectively provided in the first to third porcelain bushing assemblies 121 to 123. Each of the transmission arms B that drive the opening/closing operation units in the first to third bushing assemblies 121 to 123 to perform the opening/closing operation is connected to and commonly driven by the link L.
The driving part 14 is used for driving the connecting rod L to move, so as to drive each transmission arm of the first porcelain bushing assembly 121 to the third porcelain bushing assembly 123 to perform the opening and closing operations of the isolating switch and the grounding switch.
The control box 10 controls the overall operation of the various working elements within the sleeve portion 12 and the drive portion 14.
Since the external arrangement and the internal structure of each porcelain bushing assembly are substantially similar, each constituent element and the operation thereof related to the present invention will be specifically described below by taking the first porcelain bushing assembly 121 as an example for simplicity, and the other porcelain bushing assemblies are similar to the first porcelain bushing assembly.
An enlarged view of a portion a of a first porcelain bushing assembly of the high voltage half-combiner of fig. 1 and a transmission for the high voltage half-combiner according to an embodiment of the present invention mounted on the portion a of the first porcelain bushing assembly are shown in fig. 2A.
As shown in fig. 2A, the first porcelain bushing assembly 121 of the high-voltage half-combiner includes a housing 1211, an opening and closing operation unit (not shown in fig. 2A), a transmission arm 1213, and a connection shaft 1215, and note that the "transmission arm 1213" herein is a specific example of the "transmission arm B" of the first porcelain bushing assembly 121 in fig. 1.
The opening and closing operation unit includes a disconnecting switch and a grounding switch provided in the housing 1211. The isolating switch and the grounding switch are commonly used structures in high-voltage semi-combined electrical appliances, and the corresponding structures and working modes are known to those skilled in the art. Since the invention is not directed to specific structures of the isolating switch and the grounding switch, descriptions of specific structures of the isolating switch and the grounding switch will be omitted herein in order to avoid obscuring the invention by excessive description.
The actuator arm 1213 is disposed outside the housing 1211 and has a first end 1213a and a second end 1213b.
A connecting shaft 1215 is disposed through the housing 1211 and has a first end (not shown in fig. 2A) and a second end 1215b. A first end of the connection shaft 1215 is positioned within the housing 1211 to control the opening/closing of the isolating switch and the opening/closing of the grounding switch within the housing 1211. The second end 1215b of the connecting shaft 1215 is located outside the housing 1211 and the second end 1213b of the actuator arm 1213 is connected to the second end 1215b of the connecting shaft 1215.
Specifically, the actuator arm 1213 further has a first aperture O1 (shown in fig. 2B) disposed on the second end 1213B of the actuator arm 1213. The second end 1213b of the driving arm 1213 is sleeved on the second end 1215b of the connecting shaft 1215 through the first opening O1. An internal spline is provided on the inner wall of the first bore O1 and an external spline (shown in fig. 2C) is provided on the second end 1215b of the connecting shaft 1215, the external spline on the second end 1215b of the connecting shaft 1215 engaging the internal spline on the inner wall of the first bore O1, thereby connecting the second end 1213b of the actuator arm 1213 with the second end 1215b of the connecting shaft 1215. Fig. 2B shows the form of an internal spline provided on the inner wall of the first bore O1, and fig. 2C shows the form of an external spline provided on the second end 1215B of the connecting shaft 1215.
The first end 1213a of the drive arm 1213 is connected to an external drive mechanism, such as the link L shown in fig. 1.
In a normal operation state of the disconnecting switch and the grounding switch of the high-voltage half-combined electrical apparatus, the second end 1213b of the transmission arm 1213 drives the connection shaft 1215 to rotate a predetermined angle around the axial direction of the connection shaft 1215 every time the transmission arm 1213 is driven by the external driving mechanism. Rotation of the connecting shaft 1215 causes the first end of the connecting shaft 1215 to control the disconnecting switch and the grounding switch within the housing 1211 to switch between the open and closed states once.
Note that the predetermined angle here may be 51.5 degrees, but the present invention is not limited thereto, and the angle may be set according to actual needs.
As shown in fig. 2A, the transmission device 2 for a high-voltage half-combiner according to an embodiment of the present invention may include an indication arm 21, a first sensor 23, a second sensor 25, and a third sensor 27.
The indicator arm 21 has a first end 21a and a second end 21b. The second end 21b of the indicator arm 21 is connected to the second end 1215b of the connecting shaft 1215.
Specifically, the indicator arm 21 further has a second aperture O2 (shown in fig. 2D) provided on the second end 21b of the indicator arm 21. The second end 21b of the indicator arm 21 is sleeved on the second end 1215b of the connecting shaft 1215 through the second opening O2. An internal spline is provided on the inner wall of the second bore O2. The internal splines on the inner wall of the second bore O2 engage the external splines on the second end 1215b of the connecting shaft 1215 to connect the second end 21b of the indicator arm 21 to the second end 1215b of the connecting shaft 1215. In fig. 2D is shown the form of an internal spline provided on the inner wall of the second bore O2.
Here, the second end 21b of the indication arm 21 is closer to the housing 1211 than the second end 1213b of the transmission arm 1213, but the present invention is not limited thereto, and the second end 21b of the indication arm 21 may be farther from the housing 1211 than the second end 1213b of the transmission arm 1213.
The first sensor 23 is located at a first predetermined position P1 on the housing 1211 and is capable of sensing the first end 21a of the indicator arm 21 and outputting a first signal indicative of the first end 21a of the indicator arm 21 being at the first predetermined position.
The second sensor 25 is located at a second predetermined position P2 on the housing 1211 and is capable of sensing the first end 21a of the indicator arm 21 and outputting a second signal indicative of the first end 21a of the indicator arm 21 being at the second predetermined position.
The third sensor 27 is located at a third predetermined position P3 on the housing 1211 and is capable of sensing the first end 21a of the indicator arm 21 and outputting a third signal indicative of the first end 21a of the indicator arm 21 being at the third predetermined position.
According to the embodiment of the invention, the first predetermined position P1 corresponds to a position where the first end 21a of the indicating arm 21 is located when the disconnecting switch is in the on state and the grounding switch is in the off state in the normal operation state, the second predetermined position P2 corresponds to a position where the first end 21a of the indicating arm 21 is located when the disconnecting switch is in the off state and the grounding switch is in the off state in the normal operation state, and the third predetermined position P3 corresponds to a position where the first end 21a of the indicating arm 21 is located when the disconnecting switch is in the off state and the grounding switch is in the on state in the normal operation state.
The indicator arm 21 rotates with the rotation of the connection shaft 1215.
When the first end 21b of the indication arm 21 rotates to the first predetermined position P1, the first sensor 23 senses the first end 21b of the indication arm 21 and outputs a first signal indicating that the isolating switch is in the on state and the grounding switch is in the off state.
When the first end 21b of the indication arm 21 rotates to the second predetermined position P2, the second sensor 25 senses the first end 21b of the indication arm 21 and outputs a second signal indicating that the isolating switch is in the open state and the grounding switch is in the open state.
When the first end 21b of the indication arm 21 rotates to the third predetermined position P3, the third sensor 27 senses the first end 21b of the indication arm 21 and outputs a third signal indicating that the isolating switch is in the off state and the grounding switch is in the on state.
When the first to third sensors 23 to 27 do not output any one of the first to third signals for a predetermined time, it may be determined that the isolating switch and the ground switch are in a fault state and output a fault signal indicating the fault state.
Here, the predetermined time may be 30 to 50 milliseconds, but the present invention is not limited thereto, and the predetermined time may be set according to actual needs for sensitivity.
Therefore, the opening state, the closing state or the fault state of the isolating switch and the grounding switch can be determined according to the first signal, the second signal and the third signal.
Here, the first to third sensors 23 to 27 may transmit the first to third signals to a power plant control center, not shown in the drawings, through a wired or wireless manner to perform data analysis to determine the on/off state or the fault state of the isolation switch and the ground switch of the high voltage half-combiner.
According to the embodiment of the present invention, the first sensor 23, the second sensor 25, and the third sensor 27 may include position sensors, but the invention is not limited thereto, and any sensor capable of detecting the first end 21a of the indication arm 21 may be used as the first to third sensors of the present invention.
As shown in fig. 2A, the first end 21a of the indication arm 21 may have a protrusion P protruding from the middle. The first to third sensors 23 to 27 may determine the on/off states of the isolating switch and the ground switch by determining that the first end 21b of the indication arm 21 is located at the corresponding predetermined position by sensing the protrusion P.
Although the transmission device for the high voltage half-combiner according to the embodiment of the present invention is described by taking the example in which the transmission device for the high voltage half-combiner is mounted on the first porcelain bushing assembly in fig. 2A, the present invention is not limited thereto, and the transmission device for the high voltage half-combiner according to the embodiment of the present invention may be applied to another porcelain bushing assembly of the high voltage half-combiner.
Fig. 3 shows an application example of the transmission device for a high-voltage half-combiner according to the embodiment of the present invention to each porcelain bushing assembly of the high-voltage half-combiner. The switching-on/off state or the fault state of each phase of isolating switch and grounding switch in the high-voltage half-combined electrical apparatus can be easily obtained through the transmission device for the high-voltage half-combined electrical apparatus arranged on each porcelain bushing component.
According to the transmission device for the high-voltage half-combined electrical apparatus, the indication arm and the sensor are arranged at the working end of the switching-on/off working unit of the high-voltage half-combined electrical apparatus, so that an external signal representing the switching-on/off state of the isolating switch in the high-voltage half-combined electrical apparatus can be additionally obtained, and faults in the power transmission process of the high-voltage half-combined electrical apparatus can be easily eliminated through the external signal. In addition, the external signal is obtained basically without being influenced by external environment, and has enhanced capability of resisting external interference.
According to the transmission device for the high-voltage half-combined electrical apparatus, the external signal can be combined with the internal signal for judging the opening and closing state of the isolating switch in the high-voltage half-combined electrical apparatus, and the opening and closing state of the isolating switch is double-confirmed through two non-identical principles and non-homologous state indication changes, so that the requirement of 'one-key sequential control' of the novel high-voltage half-combined electrical apparatus can be met.
In addition, the transmission device for the high-voltage half-combined electrical apparatus can be easily combined into the existing high-voltage half-combined electrical apparatus, and has the advantages of low route transformation difficulty and low cost.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (7)
1. A transmission (2) for a high voltage half-combiner, the high voltage half-combiner (1) comprising a plurality of porcelain bushing assemblies, each porcelain bushing assembly comprising a housing (1211); a disconnecting switch and a grounding switch disposed within the housing (1211); a transmission arm (1213) disposed outside the housing (1211) and having a first end (1213 a) and a second end (1213 b); a connection shaft (1215) disposed through the housing (1211), the connection shaft (1215) having a first end and a second end (1215 b), the first end of the connection shaft (1215) being located within the housing (1211) to control opening/closing of the disconnecting switch and opening/closing of the grounding switch, the second end (1215 b) of the connection shaft (1215) being located outside the housing (1211), the second end (1213 b) of the transmission arm (1213) being connected to the second end (1215 b) of the connection shaft (1215), the first end (1213 a) of the transmission arm (1213) being connected to an external drive mechanism (L), in a normal operation state of the disconnecting switch and the grounding switch, when an external driving mechanism (L) drives the transmission arm (1213) once, a second end (1213 b) of the transmission arm (1213) drives the connecting shaft (1215) to rotate around an axial direction of the connecting shaft (1215) by a predetermined angle, and the rotation of the connecting shaft (1215) causes a first end of the connecting shaft (1215) to control the disconnecting switch and the grounding switch to switch between a switching-off state and a switching-on state once, characterized in that the transmission device (2) for a high-voltage half-combiner comprises:
-an indicator arm (21) having a first end (21 a) and a second end (21 b), the second end (21 b) of the indicator arm (21) being connected to the second end (1215 b) of the connecting shaft (1215);
a first sensor (23) located at a first predetermined position (P1) on the housing (1211) capable of sensing a first end of the indicator arm (21) and outputting a first signal indicative of the first end (21 a) of the indicator arm (21) being at the first predetermined position;
a second sensor (25) located at a second predetermined position (P2) on the housing (1211) capable of sensing the first end (21 a) of the indicator arm (21) and outputting a second signal indicative of the first end (21 a) of the indicator arm (21) being at the second predetermined position; and
a third sensor (27) located at a third predetermined position (P3) on the housing (1211) capable of sensing the first end (21 a) of the indicator arm (21) and outputting a third signal indicative of the first end (21 a) of the indicator arm (21) being in the third predetermined position,
wherein the indicating arm (21) rotates with the rotation of the connecting shaft (1215),
the first predetermined position corresponds to a position of a first end (21 a) of the indicating arm (21) when the isolating switch is in a closed state and the grounding switch is in an open state in the normal operation state,
the second predetermined position corresponds to a position where the first end (21 a) of the indicating arm (21) is located when the disconnecting switch is in the disconnecting state and the grounding switch is in the disconnecting state in the normal operation state,
the third predetermined position corresponds to a position where the first end (21 a) of the indicating arm (21) is located when the disconnecting switch is in a disconnecting state and the grounding switch is in a closing state in the normal operation state,
and determining a switching-off state, a switching-on state or a fault state of the isolating switch and the grounding switch according to the first signal, the second signal and the third signal.
2. The transmission (2) for a high-voltage half-combiner according to claim 1, characterized in that,
the transmission arm (1213) further has a first opening (O1) provided at a second end (1213 b) of the transmission arm, the second end (1213 b) of the transmission arm (1213) is sleeved on a second end (1215 b) of the connecting shaft (1215) through the first opening (O1), an internal spline is provided on an inner wall of the first opening (O1),
the connecting shaft (1215) further has external splines provided on the second end (1215 b) of the connecting shaft (1215),
wherein the external splines on the second end (1215 b) of the connecting shaft (1215) engage with the internal splines on the inner wall of the first bore (O1) such that the second end (1213 b) of the transfer arm (1213) is connected to the second end (1215 b) of the connecting shaft (1215).
3. The transmission (2) for a high-voltage half-combiner according to claim 2, characterized in that,
the indicating arm (21) further has a second opening (O2) provided on a second end (21 b) of the indicating arm (21), the second end (21 b) of the indicating arm (21) is sleeved on a second end (1215 b) of the connecting shaft (1215) through the second opening (O2), an inner spline is provided on an inner wall of the second opening (O2),
wherein the internal splines on the inner wall of the second bore (O2) engage with the external splines on the second end (1215 b) of the connecting shaft (1215) such that the second end (21 b) of the indicator arm (21) is connected to the second end (1215 b) of the connecting shaft (1215).
4. A transmission (2) for a high-voltage half-combiner according to claim 3, characterized in that the second end (21 b) of the indicating arm (21) is closer to the housing (1211) than the second end (1213 b) of the transmission arm (1213).
5. The transmission (2) for a high-voltage half-combiner according to claim 1, characterized in that,
the first signal indicates that the isolating switch is in a closing state and the grounding switch is in a separating state;
the second signal indicates that the isolating switch is in a brake-separating state and the grounding switch is in a brake-separating state;
the third signal indicates that the isolating switch is in a switching-off state and the grounding switch is in a switching-on state; and
when the first to third sensors do not output any of the first to third signals for a predetermined time, it is determined that the isolating switch and the grounding switch are in a fault state and a fault signal representing the fault state is output.
6. The transmission (2) for a high-voltage half-combiner according to claim 1, wherein the first sensor (23), the second sensor (25) and the third sensor (27) comprise position sensors.
7. The transmission device (2) for a high-voltage half-combiner according to claim 1, wherein the first end (21 a) of the indicating arm (21) has a protrusion (P) protruding from the middle, and the first to third sensors (23, 27) determine that the first end (21 a) of the indicating arm (21) is located at a corresponding predetermined position by sensing the protrusion (P), thereby determining the on/off states of the isolating switch and the grounding switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311166781.7A CN116913720A (en) | 2023-09-11 | 2023-09-11 | Transmission device for high-voltage semi-combined electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311166781.7A CN116913720A (en) | 2023-09-11 | 2023-09-11 | Transmission device for high-voltage semi-combined electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116913720A true CN116913720A (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311166781.7A Pending CN116913720A (en) | 2023-09-11 | 2023-09-11 | Transmission device for high-voltage semi-combined electrical apparatus |
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| Country | Link |
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| CN (1) | CN116913720A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2466603A1 (en) * | 2010-12-15 | 2012-06-20 | Eaton Industries (Netherlands) B.V. | Disconnector switch for voltage transformer |
| CA2955679A1 (en) * | 2014-07-17 | 2016-01-21 | Schlage Lock Company Llc | Sensor assemblies for locks |
| CN113782379A (en) * | 2021-09-22 | 2021-12-10 | 国电博纳（北京）电力设备有限公司 | Single-motor three-station operating mechanism with one-key sequential control function |
| CN217690932U (en) * | 2022-05-31 | 2022-10-28 | 日立能源瑞士股份公司 | Operating mechanism for grounding switch and grounding switch |
| CN217822534U (en) * | 2022-06-02 | 2022-11-15 | 日立能源瑞士股份公司 | Operating mechanism for isolating grounding switch and isolating grounding switch |
| CN219418811U (en) * | 2023-01-28 | 2023-07-25 | 日立能源瑞士股份公司 | High-voltage switch operating mechanism and high-voltage switch |
-
2023
- 2023-09-11 CN CN202311166781.7A patent/CN116913720A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2466603A1 (en) * | 2010-12-15 | 2012-06-20 | Eaton Industries (Netherlands) B.V. | Disconnector switch for voltage transformer |
| CA2955679A1 (en) * | 2014-07-17 | 2016-01-21 | Schlage Lock Company Llc | Sensor assemblies for locks |
| CN113782379A (en) * | 2021-09-22 | 2021-12-10 | 国电博纳（北京）电力设备有限公司 | Single-motor three-station operating mechanism with one-key sequential control function |
| CN217690932U (en) * | 2022-05-31 | 2022-10-28 | 日立能源瑞士股份公司 | Operating mechanism for grounding switch and grounding switch |
| CN217822534U (en) * | 2022-06-02 | 2022-11-15 | 日立能源瑞士股份公司 | Operating mechanism for isolating grounding switch and isolating grounding switch |
| CN219418811U (en) * | 2023-01-28 | 2023-07-25 | 日立能源瑞士股份公司 | High-voltage switch operating mechanism and high-voltage switch |
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