CN108565150B - Opening and closing position calibration device, open type isolating switch and system - Google Patents
Opening and closing position calibration device, open type isolating switch and system Download PDFInfo
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- CN108565150B CN108565150B CN201810566946.2A CN201810566946A CN108565150B CN 108565150 B CN108565150 B CN 108565150B CN 201810566946 A CN201810566946 A CN 201810566946A CN 108565150 B CN108565150 B CN 108565150B
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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"
- H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
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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"
- H01H9/167—Circuits for remote indication
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- Laser Surgery Devices (AREA)
Abstract
The invention provides a switching-on and switching-off position calibration device, an open type isolating switch and a system, wherein the device comprises: the laser transmitter is arranged on the base of the open isolating switch, and the transmitting tube of the laser transmitter faces upwards; the reflecting mirror is arranged at a target position of the open isolating switch, and the reflecting surface of the reflecting mirror faces downwards, wherein the target position is on the conductive arm and is close to the position of the movable contact; the laser receiver is arranged adjacent to the laser transmitter, and a receiving tube of the laser receiver faces upwards, wherein when a conductive arm of the open isolating switch is at a closing position or a separating position, laser beams emitted by the laser transmitter can reach the laser receiver through reflection of the reflecting mirror. The device adopts the laser light path to directly reflect whether the opening and closing position of the disconnecting link is in place, ensures accurate measurement of the opening and closing position of the disconnecting link, has high accuracy and more reliable measurement result, and relieves the technical problem of poor accuracy of the existing opening and closing position calibration mode.
Description
Technical Field
The invention relates to the technical field of state detection of electrical equipment, in particular to a switching-on/off position calibration device, an open type isolating switch and a system.
Background
In an open disconnecting switch (simply referred to as a disconnecting link) of 35kV or above of a transformer substation, the current confirmation of the opening and closing positions of the disconnecting link is mainly achieved through two means. And one is to judge whether the switch is in place or not by manual visual inspection. And one is that after the disconnecting link rotates to the opening and closing position, an auxiliary switch contact in the mechanism box is connected or disconnected, and a disconnecting link opening and closing in-place signal is sent out through a secondary circuit to confirm that the disconnecting link is at the opening and closing position.
The first means for manually and visually judging whether the knife switch is in place inevitably has error problems, and even a small error can cause the failure of heating the knife switch. The second method adopts an auxiliary switch to confirm the switch-on and switch-off position of the disconnecting link, which does not directly reflect the actual position of the disconnecting link contact of the primary equipment, and the actual position of the disconnecting link is not completely consistent with the in-place signal possibly due to secondary circuit problems or mechanical problems of a disconnecting link transmission mechanism and the like.
To sum up, the existing two ways cannot accurately reflect whether the switch opening and closing positions of the knife switch are completely in place.
Disclosure of Invention
Therefore, the invention aims to provide a switching-on/off position calibration device, an open type isolating switch and a system, so as to solve the technical problem that the accuracy of the existing switching-on/off position calibration mode is poor.
In a first aspect, an embodiment of the present invention provides an opening and closing position calibration device, where the device includes: a laser emitter, a mirror and a laser receiver;
the laser transmitter is arranged on the base of the open isolating switch, and the transmitting tube of the laser transmitter faces upwards;
the reflector is arranged at a target position of the open isolating switch, and the reflecting surface of the reflector faces downwards, wherein the target position is a position on the conductive arm and is close to the moving contact;
the laser receiver is arranged adjacent to the laser transmitter, and a receiving tube of the laser receiver faces upwards, wherein when a conductive arm of the open isolating switch is at a closing position or a separating position, a laser beam emitted by the laser transmitter can reach the laser receiver through reflection of the reflecting mirror.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the apparatus further includes: a data transmission cable and a normally open relay;
the data transmission cable is connected with the laser receiver and the switching-on signal loop, one end of the other data transmission cable is connected with the laser receiver, and the other end of the other data transmission cable is connected with the normally open relay and is used for receiving a laser beam emitted by the laser emitter at the laser receiver and transmitting switching-on in-place information to the normally open relay after the switching-on signal loop is conducted;
after the normally open relay receives the in-place closing information, the normally open relay is closed, and the in-place closing information is sent to a substation computer through a transmission cable;
the data transmission cable is also used for transmitting the opening in-place information to the normally open relay after the laser receiver receives the laser beam emitted by the laser emitter and the switching-on signal loop is disconnected;
and after the normally open relay receives the opening in-place information, the normally open relay is disconnected, and the opening in-place information is sent to the substation computer through a transmission cable.
With reference to the first aspect, the embodiment of the present invention provides a second possible implementation manner of the first aspect, where the apparatus further includes: a motor;
the motor is connected with the switching-on button and the switching-off button respectively and is used for receiving switching-on signals or switching-off signals and controlling the conductive arm to conduct switching-on operation according to the switching-on signals or controlling the conductive arm to conduct switching-off operation according to the switching-off signals.
With reference to the first aspect, the embodiment of the present invention provides a third possible implementation manner of the first aspect, where the apparatus further includes: a working power supply module and a control power supply module;
the working power supply module is respectively connected with the control power supply module and the laser receiver and is used for providing electric energy for the control power supply module and the laser receiver;
the input end of the control power supply module is connected with the switch-on button and the switch-off button respectively, and the output end of the control power supply module is connected with the laser transmitter and used for controlling the working power supply module to provide electric energy for the laser transmitter for preset time according to a switch-on signal or a switch-off signal so that the laser transmitter transmits laser beams for preset time.
With reference to the first aspect, the embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the working power supply module and the control power supply module are provided by a transformer field terminal box cabling.
With reference to the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein the reflecting mirror, the laser emitter, and the laser receiver are disposed on the open-type isolating switch by a fixing device.
With reference to the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein the fixing element includes: stainless steel sheet and screw.
In a second aspect, embodiments of the present invention further provide an open-type disconnecting switch, including: the opening/closing position calibration device described in the first aspect further includes: an open-type isolating switch body;
the number of the opening and closing position calibration devices is 3, and the opening and closing position calibration devices are respectively arranged on the open type isolating switch body.
With reference to the second aspect, the embodiment of the present invention provides a first possible implementation manner of the second aspect, wherein the open type isolating switch is disposed in a high voltage substation circuit.
In a third aspect, an embodiment of the present invention further provides an online real-time detection system for a switching position of an open type isolating switch, where the system includes the open type isolating switch in the second aspect, and further includes: a substation computer;
the number of the open type isolating switches is multiple, and the normally open relay in each open type isolating switch is connected with the transformer substation computer through a data transmission cable and is used for transmitting in-place opening and closing information of the corresponding open type isolating switch to the transformer substation computer so that related personnel can check in-place opening and closing information displayed by the transformer substation computer.
The embodiment of the invention has the following beneficial effects: in the prior art, whether the opening and closing positions of the disconnecting link are in place or not is determined in a manual visual inspection or auxiliary switch mode, and the accuracy of the process is poor. Compared with the prior art, in the opening and closing position calibration device, the opening type isolating switch and the system, when the conducting arm of the opening type isolating switch is at the closing position or the opening position, the laser beam emitted by the laser emitter can reach the laser receiver through the reflection of the reflecting mirror, namely, the laser path is adopted to directly reflect whether the opening and closing position of the disconnecting link is in place, so that the accurate measurement of the opening and closing position of the disconnecting link is ensured, the accuracy is high, the measurement result is more reliable, and the technical problem that the accuracy of the existing opening and closing position calibration mode is poor is solved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an opening and closing position calibration device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an opening and closing position calibration device according to an embodiment of the present invention;
fig. 3 is a connection structure diagram of related components in the opening and closing position calibration device according to the embodiment of the present invention;
fig. 4 is a schematic diagram of an open type isolating switch according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
For the convenience of understanding the present embodiment, first, a device for calibrating the opening and closing position disclosed in the embodiment of the present invention will be described in detail.
Embodiment one:
an opening and closing position calibration device, referring to fig. 1, the device includes: a laser emitter, a mirror and a laser receiver;
the laser transmitter is arranged on the base of the open isolating switch, and the transmitting tube of the laser transmitter faces upwards;
the reflecting mirror is arranged at a target position of the open isolating switch, and the reflecting surface of the reflecting mirror faces downwards, wherein the target position is on the conductive arm and is close to the position of the movable contact;
the laser receiver is arranged adjacent to the laser transmitter, and a receiving tube of the laser receiver faces upwards, wherein when a conductive arm of the open isolating switch is at a closing position or a separating position, laser beams emitted by the laser transmitter can reach the laser receiver through reflection of the reflecting mirror.
In the embodiment of the invention, the opening and closing position calibration device is applied to an open type isolating switch. In the open type isolating switch, if the conducting arm of the open type isolating switch is at the closing position, the laser beam emitted by the laser emitter can reach the laser receiver through the reflection of the reflecting mirror, and then the device (the device consisting of the laser emitter, the reflecting mirror and the laser receiver) is used for calibrating the closing position; if the conducting arm of the open isolating switch is in the opening position, the laser beam emitted by the laser transmitter can reach the laser receiver by reflection of the reflecting mirror, and the device (the device consisting of the laser transmitter, the reflecting mirror and the laser receiver) is used for calibrating the opening position. In practical applications, a device for calibrating the closing position and a device for calibrating the opening position may be provided separately. Specifically, a schematic diagram of the opening and closing position calibration device is shown in fig. 2.
The above-mentioned content simply introduces the structure of the opening and closing position calibration device, and the specific working process is described in detail hereinafter, which is not repeated here.
In the prior art, whether the opening and closing positions of the disconnecting link are in place or not is determined in a manual visual inspection or auxiliary switch mode, and the accuracy of the process is poor. Compared with the prior art, in the opening and closing position calibration device, the opening type isolating switch and the system, when the conducting arm of the opening type isolating switch is at the closing position or the opening position, the laser beam emitted by the laser emitter can reach the laser receiver through the reflection of the reflecting mirror, namely, the laser path is adopted to directly reflect whether the opening and closing position of the disconnecting link is in place, so that the accurate measurement of the opening and closing position of the disconnecting link is ensured, the accuracy is high, the measurement result is more reliable, and the technical problem that the accuracy of the existing opening and closing position calibration mode is poor is solved.
The related content of the opening and closing position calibration device is described in detail below.
In an alternative embodiment, referring to fig. 3, the apparatus further comprises: a data transmission cable and a normally open relay;
the data transmission cable is connected with the laser receiver and the switching-on signal loop, one end of the other data transmission cable is connected with the laser receiver, the other end of the other data transmission cable is connected with the normally open relay and is used for receiving a laser beam emitted by the laser emitter at the laser receiver and transmitting switching-on in-place information to the normally open relay after the switching-on signal loop is conducted;
after the normally open relay receives the in-place closing information, the normally open relay is closed, and the in-place closing information is sent to a substation computer through a transmission cable;
the data transmission cable is also used for transmitting the opening in-place information to the normally open relay after the laser receiver receives the laser beam emitted by the laser emitter and the switching-on signal loop is disconnected;
and after the normally open relay receives the on-site opening information, the normally open relay is disconnected, and the on-site opening information is sent to a substation computer through a transmission cable.
Specifically, the laser receiver is connected to the data transmission cable, the laser receiver is connected to one end of another data transmission cable, the other end is connected with the normally open relay, when the laser receiver receives the laser beam emitted by the laser emitter, and after the switching-on signal loop is conducted (that is, the conducting arm is located at the switching-on position), the switching-on is indicated to be in place at this time, then, the data transmission cable transmits switching-on information to the normally open relay, at this time, the normally open relay is closed after receiving the switching-on information, and the switching-on information is sent to the substation computer through the transmission cable. The laser transmitter, the reflecting mirror and the laser receiver which work at the moment are devices for calibrating the closing position;
when the laser receiver receives the laser beam emitted by the laser emitter, and after the switching-on signal loop is disconnected (namely, the conducting arm is positioned at the switching-off position), the switching-off is indicated to be in place at the moment, then, the data transmission cable transmits switching-off in-place information to the normally open relay, and at the moment, the normally open relay is disconnected after receiving the switching-off in-place information, and the switching-off in-place information is sent to a substation computer through the transmission cable. The laser transmitter, the reflecting mirror and the laser receiver which work at the moment are devices for calibrating the opening position.
In an alternative embodiment, referring to fig. 3, the apparatus further comprises: a motor;
the motor is connected with the switching-on button and the switching-off button respectively and is used for receiving switching-on signals or switching-off signals and controlling the conductive arm to perform switching-on operation according to the switching-on signals or switching-off operation according to the switching-off signals.
When the switching-on operation is carried out, a user presses a switching-on button to generate a switching-on signal, and the motor drives the conductive arm to carry out the switching-on operation according to the rotation of the switching-on signal when switching on;
when the opening operation is carried out, a user presses the opening button, so that an opening signal is generated, and the motor rotates according to the opening signal when opening, so that the conductive arm is driven to carry out the opening operation.
In an alternative real-time manner, referring to fig. 3, the apparatus further comprises: a working power supply module and a control power supply module;
the working power supply module is respectively connected with the control power supply module and the laser receiver and is used for providing electric energy for the control power supply module and the laser receiver;
the input end of the control power supply module is connected with the switching-on button and the switching-off button respectively, and the output end of the control power supply module is connected with the laser transmitter and is used for controlling the working power supply module to provide electric energy for the laser transmitter for preset time according to the switching-on signal or the switching-off signal so that the laser transmitter transmits laser beams for preset time.
Specifically, the input end of the control power supply module is respectively connected with the closing button and the opening button, when a user presses the closing button, a closing signal is generated, and the control power supply module controls the working power supply module to provide electric energy for the laser transmitter according to the closing signal, so that the laser transmitter transmits laser beams with preset time. Generally, the preset time is 3 seconds to 5 seconds, and the operation of closing can be completed within the preset time, that is, the conductive arm can completely reach the closing position. After reaching the preset time, the control power supply no longer controls the working power supply module to provide electric energy for the laser transmitter, that is to say, the laser transmitter will not emit laser any more, and the waste of electric energy caused by long-time laser emission is avoided. In addition, in the case, the control power supply module controls the laser transmitter for calibrating the closing position according to the closing signal;
when a user presses the brake release button, a brake release signal is generated, and the control power supply module controls the working power supply module to supply electric energy for the laser transmitter for a preset time according to the brake release signal, so that the laser transmitter transmits laser beams for the preset time. Generally, the preset time is 3 seconds to 5 seconds, and the opening operation can be completed within the preset time, that is, the conductive arm can completely reach the opening position. After reaching the preset time, the control power supply no longer controls the working power supply module to provide electric energy for the laser transmitter, that is to say, the laser transmitter will not emit laser any more, and the waste of electric energy caused by long-time laser emission is avoided. In addition, in this case, the control power module controls the laser transmitter for performing the switching-off position calibration according to the switching-off signal.
In an alternative embodiment, the operating power module and the control power module are provided by a transformer field terminal box cabling.
In addition, the reflector, the laser transmitter and the laser receiver are arranged on the open isolating switch through the fixing piece. Specifically, the mounting includes: stainless steel sheet and screw.
The following describes the process of the opening and closing calibration in a popular language in detail:
the closing process comprises the following steps: when a user presses a closing button, a closing signal is generated, at the moment, the motor rotates when in closing to drive the conductive arm to conduct closing operation, meanwhile, the control power supply module also controls the working power supply module to provide electric energy for the laser emitter according to the closing signal, the laser emitter emits laser beams with preset time, after the conductive arm reaches a closing position (namely closing in place), the laser beams emitted by the laser emitter can reach the laser receiver through reflection of the reflecting mirror, at the moment, a closing signal loop of the disconnecting link is conducted to indicate that the closing is in place, and then closing information is transmitted to the normally open relay through the data transmission cable, and after the normally open relay receives the closing information, the normally open relay is closed to send the closing information to the substation computer through the transmission cable.
The brake separating process comprises the following steps: when a user presses a brake release button, a brake release signal is generated, at the moment, the motor rotates during brake release to drive the conductive arm to conduct brake release operation, meanwhile, the control power supply module controls the working power supply module to provide electric energy for the laser transmitter according to the brake release signal, the laser transmitter transmits laser beams with preset time, when the conductive arm reaches a brake release position (namely brake release is in place), the laser beams transmitted by the laser transmitter can reach the laser receiver through reflection of the reflecting mirror, at the moment, a brake switch signal loop of the brake is disconnected to indicate that the brake release is in place, and then brake release information is transmitted to the normally open relay through the data transmission cable, and after the normally open relay receives the brake release information, the normally open relay is disconnected, and the brake release information is transmitted to a substation computer through the transmission cable.
Embodiment two:
referring to fig. 4, an open type disconnecting switch includes the opening and closing position calibration device in the first embodiment, and further includes: an open-type isolating switch body;
the number of the opening and closing position calibration devices is 3 groups, and the opening and closing position calibration devices are respectively arranged on the open type isolating switch body.
Specifically, in the open type isolating switch, a three-phase circuit is provided, so that a 3-group opening and closing position calibration device is required to be arranged. As shown in fig. 1, there are 3 conductive arms corresponding thereto.
Optionally, the open disconnector is arranged in the high voltage substation circuit.
Embodiment III:
an on-line real-time detection system for opening and closing positions of an open isolating switch, comprising: the open type isolating switch in the second embodiment further includes: a substation computer;
the number of the open type isolating switches is multiple, and the normally open relay in each open type isolating switch is connected with the transformer substation computer through a data transmission cable and is used for transmitting the opening and closing in-place information of the corresponding open type isolating switch to the transformer substation computer so that related personnel can check the opening and closing in-place information displayed by the transformer substation computer.
The device can be installed in a large amount in a transformer substation to respectively measure the opening and closing conditions of each phase of each group of disconnecting link, so that an on-line real-time detection system for the opening and closing positions of all disconnecting links is formed.
In addition, in the description of embodiments of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, but it should be understood by those skilled in the art that the present invention is not limited thereto, and that the present invention is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. An opening and closing position calibration device, the device comprising: a laser emitter, a mirror and a laser receiver;
the laser transmitter is arranged on the base of the open isolating switch, and the transmitting tube of the laser transmitter faces upwards;
the reflecting mirror is arranged at a target position of the open isolating switch, and the reflecting surface of the reflecting mirror faces downwards, wherein the target position is a position on a conductive arm and close to a moving contact, the number of the conductive arms is 3, and the number of the corresponding opening and closing position calibrating devices on the open isolating switch is 3 groups;
the laser receiver is arranged adjacent to the laser emitter, and a receiving tube of the laser receiver faces upwards, wherein when a conductive arm of the open isolating switch is at a closing position or a separating position, a laser beam emitted by the laser emitter can reach the laser receiver through reflection of the reflecting mirror;
wherein the apparatus further comprises: a data transmission cable and a normally open relay;
the data transmission cable is connected with the laser receiver and the switching-on signal loop, one end of the other data transmission cable is connected with the laser receiver, and the other end of the other data transmission cable is connected with the normally open relay and is used for receiving a laser beam emitted by the laser emitter at the laser receiver and transmitting switching-on in-place information to the normally open relay after the switching-on signal loop is conducted;
after the normally open relay receives the in-place closing information, the normally open relay is closed, and the in-place closing information is sent to a substation computer through a transmission cable;
the data transmission cable is also used for transmitting the opening in-place information to the normally open relay after the laser receiver receives the laser beam emitted by the laser emitter and the switching-on signal loop is disconnected;
and after the normally open relay receives the opening in-place information, the normally open relay is disconnected, and the opening in-place information is sent to the substation computer through a transmission cable.
2. The apparatus of claim 1, wherein the apparatus further comprises: a motor;
the motor is connected with the switching-on button and the switching-off button respectively and is used for receiving switching-on signals or switching-off signals and controlling the conductive arm to conduct switching-on operation according to the switching-on signals or controlling the conductive arm to conduct switching-off operation according to the switching-off signals.
3. The apparatus of claim 2, wherein the apparatus further comprises: a working power supply module and a control power supply module;
the working power supply module is respectively connected with the control power supply module and the laser receiver and is used for providing electric energy for the control power supply module and the laser receiver;
the input end of the control power supply module is connected with the switching-on button and the switching-off button respectively, and the output end of the control power supply module is connected with the laser transmitter and used for controlling the working power supply module to provide electric energy for the laser transmitter for preset time according to a switching-on signal or a switching-off signal so that the laser transmitter transmits laser beams for preset time.
4. A device according to claim 3, wherein the operating power module and the control power module are provided by a transformer field terminal box cabling.
5. The apparatus of claim 1, wherein the mirror, the laser transmitter, and the laser receiver are disposed on the open isolation switch by a fixture.
6. The apparatus of claim 5, wherein the fixture comprises: stainless steel sheet and screw.
7. An open disconnector, characterized in that it comprises a switching position calibration device according to any of the preceding claims 1 to 6, further comprising: an open-type isolating switch body;
the number of the opening and closing position calibration devices is 3, and the opening and closing position calibration devices are respectively arranged on the open type isolating switch body.
8. The open disconnector according to claim 7, characterized in that the open disconnector is arranged in a high voltage substation circuit.
9. An on-line real-time detection system for the opening and closing position of an open type isolating switch, characterized in that the system comprises the open type isolating switch as defined in any one of the preceding claims 7 to 8, and further comprises: a substation computer;
the number of the open type isolating switches is multiple, and the normally open relay in each open type isolating switch is connected with the transformer substation computer through a transmission cable and is used for transmitting in-place opening and closing information of the corresponding open type isolating switch to the transformer substation computer so that related personnel can check in-place opening and closing information displayed by the transformer substation computer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810566946.2A CN108565150B (en) | 2018-06-04 | 2018-06-04 | Opening and closing position calibration device, open type isolating switch and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810566946.2A CN108565150B (en) | 2018-06-04 | 2018-06-04 | Opening and closing position calibration device, open type isolating switch and system |
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| CN108565150A CN108565150A (en) | 2018-09-21 |
| CN108565150B true CN108565150B (en) | 2023-10-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109406995B (en) * | 2018-10-22 | 2021-05-04 | 四川大学 | Method for confirming in-place closing of three-column rotary high-voltage isolating switch |
| CN109525042B (en) * | 2019-01-02 | 2024-05-17 | 广州威戈计算机科技有限公司 | Isolation switch position analysis system and method |
| CN111157887A (en) * | 2020-01-15 | 2020-05-15 | 云南电网有限责任公司电力科学研究院 | Isolator monitoring devices |
| CN115179255B (en) * | 2022-07-08 | 2024-05-03 | 广东电网有限责任公司 | Equipment state detection method, system and equipment for prefabricated cabin type transformer substation |
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