CN115458346A - Disconnecting link operation position abnormity correction device of totally-enclosed combined electrical apparatus - Google Patents
Disconnecting link operation position abnormity correction device of totally-enclosed combined electrical apparatus Download PDFInfo
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- CN115458346A CN115458346A CN202211086554.9A CN202211086554A CN115458346A CN 115458346 A CN115458346 A CN 115458346A CN 202211086554 A CN202211086554 A CN 202211086554A CN 115458346 A CN115458346 A CN 115458346A
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- disconnecting link
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- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 230000002159 abnormal effect Effects 0.000 claims abstract description 22
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 5
- 230000007704 transition Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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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"
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H61/00—Electrothermal relays
- H01H61/01—Details
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention provides a device for correcting abnormal operating position of a disconnecting link of a totally-enclosed combined electrical appliance, which comprises a totally-enclosed shell, a connecting lever base and a disconnecting link transmission connecting lever, and further comprises: marking the base and the sleeve; the marking base is a split ring clamped on the outer surface of the arm base, and is provided with a switching-on/off position indicator; the outer surface of the sleeve is provided with a pointer, and the inner surface of the sleeve is sleeved on the outer surface of a transmission shaft of the disconnecting link transmission crank arm and is fixed with the transmission shaft and then synchronously rotates along with the transmission shaft; the pointer rotation range is positioned between the opening and closing position indicator marks; after the disconnecting link completes the disconnecting link operation, the vertical projection of the pointer, the disconnecting link position indicator and the actual disconnecting link position of the disconnecting link on the shell is on the same straight line; after the disconnecting link completes the switching-on operation, the vertical projections of the pointer, the switching-on position indicator and the actual switching-on position of the disconnecting link on the shell are on the same straight line. By implementing the method, the function of correcting the abnormal position of the disconnecting link body is realized by accurately indicating the position of the disconnecting link body, and the normal operation of equipment is ensured.
Description
Technical Field
The invention relates to the technical field of relay protection, in particular to a device for correcting abnormal operation position of a disconnecting link of a totally-enclosed combined electrical appliance.
Background
The totally-enclosed combined electrical apparatus has the characteristic of small occupied area, so that the totally-enclosed combined electrical apparatus is widely applied to modern power grids. Whether the opening and closing positions of the disconnecting link of the totally-enclosed combined electrical apparatus are in place or not affects the reliable operation of the equipment.
At present, the operation of the switch-on and switch-off positions of the disconnecting link of the totally-enclosed combined electrical apparatus is realized by an electric operating mechanism, but the switch-on and switch-off indication after the operation is finished only indicates that the operating mechanism finishes the switch-on and switch-off action, but cannot comprehensively reflect the switch-on and switch-off positions of the disconnecting link body, and once the positions of the micro switch are controlled to have differences in the operation process, the abnormal switch-on of the disconnecting link is easily caused, and the potential safety hazard is brought to the operation of equipment.
As shown in fig. 1, it is a knife switch operation structure of the existing totally enclosed combined electrical apparatus. The knife switch operation structure of the totally-enclosed combined electrical apparatus installs the combined electrical apparatus and the knife switch on the totally-enclosed shell 1 / Is mounted in a totally-enclosed shell 1 / The outer side wall is provided with a crank arm base 2 / Up and through the drive shaft 5 / Extends into the totally-enclosed shell 1 / Knife switch transmission crank arm 3 with internal connection knife switch / And the switch is matched with an electric operating mechanism to realize the switch-on and switch-off control of the disconnecting link. Wherein, the transmission pull rod of the electric operating mechanism passes through the pull rod mounting hole 4 / With the disconnecting link transmission connecting lever 3 / The connection is carried out, and the transmission connecting lever 3 of the disconnecting link is pulled by a transmission pull rod / And completing the switching-on and switching-off operation of the disconnecting link. If the knife switch transmission connecting lever 3 / The operation is not in place, and small differences are difficult to find on site, so that the knife switch transmission crank arm 3 / The pointing position of the knife switch body can not comprehensively reflect the operation position of the knife switch body.
Therefore, in order to ensure that the position of the main body is not abnormal after the disconnecting link is switched on and off, it is necessary to provide a device for correcting the abnormal operating position of the disconnecting link so as to ensure the normal operation of the device
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide a disconnecting link operating position abnormity correction device of a totally-enclosed combined electrical appliance, which realizes the function of correcting the abnormal position of a disconnecting link body through accurately indicating the position of the disconnecting link body, and ensures the normal operation of equipment.
In order to solve the above technical problem, an embodiment of the present invention provides a device for correcting abnormal operating position of a disconnecting link of a fully enclosed combined electrical apparatus, including a fully enclosed casing, a connecting lever base and a disconnecting link transmission connecting lever, which are disposed outside the fully enclosed casing, and further including: the marking base and the sleeve are arranged outside the totally-enclosed shell; wherein the content of the first and second substances,
the marking base is a split ring clamped on the outer surface of the crank arm base, and is provided with a brake opening position indicator and a brake closing position indicator;
the outer surface of the sleeve is provided with a pointer, and the inner surface of the sleeve is sleeved on the outer surface of a transmission shaft of the disconnecting link connected with the disconnecting link transmission crank arm and is fixed with the transmission shaft and then synchronously rotates along with the transmission shaft; the rotating range of the pointer is positioned between the brake separating position indicator and the brake closing position indicator;
after the disconnecting link finishes the switching-off operation, the vertical projections of the pointer, the switching-off position indicator and the actual switching-off position of the disconnecting link on the totally-enclosed shell are all on the same straight line; after the switch-on operation of the disconnecting link is completed, the vertical projections of the pointer, the switch-on position indicator and the actual switch-on position of the disconnecting link on the totally-enclosed shell are all on the same straight line.
The marking base is a U-shaped split ring and is fixed on the outer surface of the crank arm base through screws.
The switch-off position indicator and the switch-on position indicator are both arranged on the end surface of one side, facing the disconnecting link transmission connecting lever, of the marking base and are both adhesive strips; wherein, the colors of the two stickers are different.
Wherein, two the sticker all paste in through the non-setting adhesive on mark the base.
Wherein, the included angle formed between two stickers is 60 degrees, 70 degrees or 80 degrees.
Wherein, the sleeve is fixed on the outer surface of the transmission shaft through a screw.
Wherein, the pointer passes through the screw fixation on the surface of sleeve.
The totally-enclosed shell, the crank arm base, the disconnecting link transmission crank arm, the marking base and the sleeve are all made of insulating materials.
The embodiment of the invention has the following beneficial effects:
according to the invention, after the disconnecting link is switched off, the vertical projections of the pointer, the disconnecting link position indicator and the actual disconnecting link position of the disconnecting link on the totally-enclosed shell are all on the same straight line, and after the disconnecting link is switched on, the vertical projections of the pointer, the disconnecting link position indicator and the actual disconnecting link position of the disconnecting link on the totally-enclosed shell are all on the same straight line, so that the accurate indication of the position of the disconnecting link body is realized, the correction of the abnormal position of the disconnecting link body is ensured, and the normal operation of equipment is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
FIG. 1 is a perspective view of a knife switch operating structure of a prior totally enclosed combined electrical apparatus;
fig. 2 is a perspective view of an abnormal correction device for the operating position of the disconnecting link of the totally-enclosed combined electrical apparatus according to the embodiment of the present invention;
fig. 3 is a partially enlarged view of the abnormal correction device for the knife switch operation position of the totally-enclosed combined electrical apparatus according to the embodiment of the present invention;
fig. 4 is a working schematic diagram of the cooperation between the disconnecting link operation position abnormality correction device and the control output device of the totally-enclosed combined electrical apparatus according to the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 2 and fig. 3, in an embodiment of the present invention, the device for correcting abnormal operating position of a disconnecting link of a totally enclosed combined electrical apparatus comprises a totally enclosed casing 1 made of an insulating material, wherein the totally enclosed casing 1 is internally provided with the combined electrical apparatus (not shown) and a disconnecting link (not shown) matched with the combined electrical apparatus, and is externally provided with a crank arm base 2 and a disconnecting link transmission crank arm 3 both made of the insulating material; the disconnecting link transmission connecting lever 3 is installed on a connecting lever base 2 arranged on the outer side wall of the totally-enclosed shell 1 and extends into a disconnecting link (not shown) connected inside the totally-enclosed shell 1 through a transmission shaft 5, the disconnecting link transmission connecting lever 3 is provided with a pull rod mounting hole 4, so that a transmission pull rod of the electric operating mechanism is connected with the disconnecting link transmission connecting lever 3 through the pull rod mounting hole 4, the disconnecting link transmission connecting lever 3 is pulled to complete the switching-on and switching-off operation of the disconnecting link, and the switching-on and switching-off control of the disconnecting link is realized.
At this time, the device for correcting abnormal operating position of the disconnecting link of the totally-enclosed combined electrical apparatus further comprises: the marking base 6 and the sleeve 7 are arranged outside the totally-enclosed shell 1, and the marking base 6 and the sleeve 7 are made of insulating materials; wherein the content of the first and second substances,
the marking base 6 is a split ring clamped on the outer surface of the crank arm base 2, and is provided with a brake separating indicator 61 and a brake closing indicator 62; wherein, the marking base 6 is a U-shaped split ring and is fixed on the outer surface of the crank arm base 2 through screws; the switch-off position indicator 61 and the switch-on position indicator 62 are both arranged on the end surface of one side of the marking base 6 facing the disconnecting link transmission crank arm 3, and both are adhesive strips; the two adhesive strips are different in color and are adhered to the marking base 6 through adhesive sticker;
the outer surface of the sleeve 7 is provided with a pointer 71 and fixed by a screw, and the inner surface of the sleeve is sleeved on the outer surface of a transmission shaft 5 of the disconnecting link connected with the disconnecting link transmission crank arm 3 and is fixed with the transmission shaft 5 by the screw and then synchronously rotates along with the transmission shaft; the rotating range of the pointer 71 is located between the opening position indicator 61 and the closing position indicator 62, namely the rotating range of the pointer 71 is located in an included angle range formed between the two strips; it should be noted that the included angle range is designed to be 60 degrees, 70 degrees, 80 degrees, or the like according to the characteristics of the equipment;
after the disconnecting link finishes the switching-off operation, the vertical projections of the pointer 71, the switching-off position indicator 61 and the actual switching-off position of the disconnecting link on the totally-enclosed shell 1 are all on the same straight line, namely, the three are on the same spatial plane; after the switch-on operation of the knife switch is completed, the vertical projections of the pointer 71, the switch-on position indicator 62 and the actual switch-on position of the knife switch on the totally enclosed shell 1 are all on the same straight line, that is, the three are on the same spatial plane.
It can be understood that, the pointer 71 cooperates with the switch-off position indicator 61 and the switch-on position indicator 62 on the indication base 6 to link the on and off actions of the disconnecting link, thereby realizing the conversion between the travel of the disconnecting link body and the electrical signal.
As shown in fig. 4, an operation principle diagram of the cooperation between the disconnecting link operation position abnormality correction device and the control output device of the totally enclosed combined electrical apparatus according to the embodiment of the present invention is shown. In fig. 4, CK1 is a switch for opening position status; CK2 is a switch-on position state switch; CK3 is a transition position state switch; FR is a thermocouple relay (FR 1 is an action output contact of the breaker); HR is a signal output terminal; the CT is a motor current transformer (the CT1 is a current transformer output port); m is a knife switch equipment motor.
The pointer of the device for correcting the abnormal operating position of the disconnecting link of the totally-enclosed combined electrical appliance provided by the embodiment of the invention is pointed to the switching-on position, the switching-off position and the transition position, three sliding switches of CK1, CK2 and CK3 are respectively conducted, otherwise, the sliding switches are opened, so that an electric signal criterion is provided for the in-place condition of the disconnecting link body, and position condition data is provided for correction control. It should be noted that the transition position is a trip transition position between the on position and the off position.
The control output device judges by receiving data of the body position indicating device and outputs forward and reverse voltage and current to control the forward and reverse movement of the motor, so that the switch body is operated in place.
The logic control principle of the cooperation of the disconnecting link operation position abnormity correction device and the control output device of the totally-enclosed combined electrical apparatus is as follows:
1. when CK1 changes from "1" to "0", CK2 is "1", CT current is "0", then the output terminal outputs the forward current, control the motor to continue to operate, until CK3 changes to "1" and stops;
2. when CK3 changes from "1" to "0", CK2 is "1", CT current is "0", the output terminal outputs the reverse current, control the electrical machinery to continue to operate, until CK1 changes to "1" and stops;
3. when the FR thermocouple relay acts, FR1 is '1', the current output of the motor is stopped, and a fault signal of the operation motor is generated.
The embodiment of the invention has the following beneficial effects:
according to the invention, after the disconnecting link finishes the switching-off operation, the vertical projections of the pointer, the switching-off position indicator and the actual switching-off position of the disconnecting link on the totally-enclosed shell are all on the same straight line, and after the switching-on operation of the disconnecting link is finished, the vertical projections of the pointer, the switching-on position indicator and the actual switching-on position of the disconnecting link on the totally-enclosed shell are all on the same straight line, so that the accurate indication of the position of the disconnecting link body is realized, the correction of the abnormal position of the disconnecting link body is ensured, and the normal operation of equipment is ensured.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (8)
1. The utility model provides a totally closed combined electrical apparatus's switch operating position unusual correcting unit, includes totally closed casing and the crank arm base and the switch transmission crank arm that outside was established, its characterized in that still includes: a marking base and a sleeve both arranged outside the totally enclosed housing; wherein the content of the first and second substances,
the marking base is a split ring clamped on the outer surface of the crank arm base, and is provided with a brake opening position indicator and a brake closing position indicator;
the outer surface of the sleeve is provided with a pointer, and the inner surface of the sleeve is sleeved on the outer surface of a transmission shaft of the disconnecting link connected with the disconnecting link transmission crank arm and is fixed with the transmission shaft and then synchronously rotates along with the transmission shaft; the rotating range of the pointer is positioned between the brake separating position indicator and the brake closing position indicator;
after the disconnecting link finishes the switching-off operation, the vertical projections of the pointer, the switching-off position indicator and the actual switching-off position of the disconnecting link on the totally-enclosed shell are all on the same straight line; after the switch-on operation of the disconnecting link is completed, the vertical projections of the pointer, the switch-on position indicator and the actual switch-on position of the disconnecting link on the totally-enclosed shell are all on the same straight line.
2. The device for correcting abnormal operating position of the disconnecting link of the totally enclosed switchgear as claimed in claim 1, wherein the indication base is a U-shaped split ring, and is fixed on the outer surface of the crank arm base by screws.
3. The abnormal knife switch operating position correcting device of the totally-enclosed combined electrical apparatus as claimed in claim 2, wherein the switch-off position indicator and the switch-on position indicator are both arranged on the end surface of one side of the indication base facing the transmission connecting lever of the knife switch, and both are strips; wherein, the colors of the two stickers are different.
4. The device for correcting the abnormal operating position of the disconnecting link of the totally-enclosed combined electrical appliance according to claim 3, wherein the two strips are both adhered to the indication base through adhesive sticker.
5. The device for correcting the abnormal operating position of the disconnecting link of the totally-enclosed combined electrical apparatus according to claim 4, wherein an included angle formed between the two strips is 60 degrees, 70 degrees or 80 degrees.
6. The device for correcting abnormal operating position of disconnecting link of totally enclosed switchgear as claimed in claim 5, wherein said sleeve is fixed on the outer surface of said transmission shaft by screws.
7. The device for correcting the abnormal operating position of the disconnecting link of the totally enclosed switchgear as claimed in claim 6, wherein said indicating needle is fixed to the outer surface of said sleeve by means of screws.
8. The abnormal knife switch operating position correcting device of the totally enclosed combined electrical apparatus as claimed in claim 7, wherein the totally enclosed shell, the crank arm base, the knife switch transmission crank arm, the marking base and the sleeve are all made of insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211086554.9A CN115458346A (en) | 2022-09-07 | 2022-09-07 | Disconnecting link operation position abnormity correction device of totally-enclosed combined electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211086554.9A CN115458346A (en) | 2022-09-07 | 2022-09-07 | Disconnecting link operation position abnormity correction device of totally-enclosed combined electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115458346A true CN115458346A (en) | 2022-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211086554.9A Pending CN115458346A (en) | 2022-09-07 | 2022-09-07 | Disconnecting link operation position abnormity correction device of totally-enclosed combined electrical apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115458346A (en) |
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2022
- 2022-09-07 CN CN202211086554.9A patent/CN115458346A/en active Pending
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