CN217181190U - Isolation device and system for transformer - Google Patents
Isolation device and system for transformer Download PDFInfo
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- CN217181190U CN217181190U CN202220240919.8U CN202220240919U CN217181190U CN 217181190 U CN217181190 U CN 217181190U CN 202220240919 U CN202220240919 U CN 202220240919U CN 217181190 U CN217181190 U CN 217181190U
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- isolation net
- execution motor
- state indicator
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Abstract
The utility model provides an isolating device and system for transformer, the device includes: the system comprises a charged detection device, a controller, a walking platform, an execution motor, an isolation net and a charged state indicator; the electrified detection device, the execution motor and the electrified state indicator are all connected with the controller, one end of the isolation net is fixed on an external fixed object, the other end of the isolation net is fixed on the walking platform where the execution motor is located, and the electrified state indicator is installed on the isolation net. The utility model provides an isolating device for transformer has simple structure, convenient operation, characteristics such as function is reliable. The live detection device is used for monitoring the live state of the transformer in real time, when the transformer is in the live state, the isolation net is in the unfolded state, and the live state indicator is controlled to be lightened, so that the isolation and warning effects are effectively achieved. When the transformer is powered off, the isolation net is automatically retracted, the operation space is released, and the maintenance test work is convenient.
Description
Technical Field
The utility model relates to an electrical engineering safety field especially relates to an isolating device and system for transformer.
Background
In the production and life process of enterprises, transformer equipment is widely and indispensably used as key equipment of a power system. Safe power supply is the important thing for guaranteeing people's life and production for a long time, and for guaranteeing the safe use of power supply and distribution equipment, relevant measures are indispensable. At present, the distribution equipment with a sealed box body, such as a high-voltage distribution cabinet, a small box type transformer and the like, adopts a charged locking and other anti-misoperation devices, has relatively mature technology and relatively wide application, and can effectively avoid the occurrence of electric shock accidents. However, the medium-large oil-immersed transformer cannot be provided with a sealed box body due to the reasons of large volume, heat dissipation requirement, daily inspection requirement and the like, so that the device is lack of a live-line mistaken-entry-prevention device, and particularly when the operations such as inspection, temperature measurement and the like are carried out in a narrow area of an indoor space, accidental electric shock is easy to occur to cause casualties or property loss.
The safety measures adopted for the large oil-immersed transformer in the prior art are as follows: an isolation fence is arranged outside the safe distance around the transformer equipment, and a fence door is manually opened to enter an isolation area after the power failure of the transformer is detected. Although the method can ensure the safety distance between workers and the transformer, the method lacks the characteristic of active mistake entry prevention, and the fixed fence physically separates the space, so that the space for overhauling and operation in the transformer room with insufficient space is smaller.
SUMMERY OF THE UTILITY MODEL
Based on above problem, the utility model provides an isolating device for transformer has simple structure, convenient operation, characteristics such as function is reliable. The live detection device is used for monitoring the live state of the transformer in real time, when the transformer is in the live state, the isolation net is in the unfolded state, and the live state indicator is controlled to be lightened, so that the isolation and warning effects are effectively achieved. When the transformer is powered off, the isolation net is automatically retracted, the operation space is released, and the maintenance test work is convenient.
The utility model provides an isolating device for transformer, include:
the system comprises a charged detection device, a controller, a walking platform, an execution motor, an isolation net and a charged state indicator;
the electrified detection device, the execution motor and the electrified state indicator are all connected with the controller, one end of the isolation net is fixed on an external fixed object, the other end of the isolation net is fixed on the walking platform where the execution motor is located, and the electrified state indicator is installed on the isolation net.
In addition, the charged state indicator is a soft LED lamp strip.
In addition, the other end of the isolation net is fixed on the walking platform through an insulating rod.
In addition, the isolation net is made of light insulating materials.
In addition, the isolation net is a foldable isolation net or a telescopic isolation net.
In addition, a plurality of walking wheels are installed at the bottom of the walking platform.
The utility model also provides an isolation system for transformer, including above-mentioned arbitrary any isolation device for transformer still include: the running track is used when the walking platform runs.
In addition, at least one of the two ends of the running track is provided with a position and stroke detection device.
The position/stroke detecting device is a position/stroke switch.
In addition, the charged state indicator is a red LED soft lamp strip.
The utility model provides an isolating device for transformer has simple structure, convenient operation, characteristics such as function is reliable. The live detection device is used for monitoring the live state of the transformer in real time, when the transformer is in the live state, the isolation net is in the unfolded state, and the live state indicator is controlled to be lightened, so that the isolation and warning effects are effectively achieved. When the transformer has power failure, the isolation net is automatically retracted, the operation space is released, and the maintenance test work is convenient.
Drawings
Fig. 1 is a schematic structural diagram of an isolation device for a transformer according to an embodiment of the present invention;
fig. 2 is an operation schematic diagram of an isolation device for a transformer according to an embodiment of the present invention.
Detailed Description
The present invention is described in further detail below with reference to specific embodiments and the attached drawings. It is intended that the present invention not be limited to the particular embodiments disclosed, but that the present invention will include all embodiments falling within the scope of the appended claims.
Referring to fig. 1 and 2, the utility model provides an isolating device for transformer, include:
the system comprises a charged detection device 2, a controller 3, a walking platform 4, an execution motor 9, an isolation net 5 and a charged state indicator 6;
the electrified detection device 2, the execution motor 9 and the electrified state indicator 6 are all connected with the controller 3, one end of the isolation net 5 is fixed on an external fixed object, the other end of the isolation net is fixed on the walking platform 4 where the execution motor 9 is located, and the electrified state indicator 6 is installed on the isolation net 5.
Optionally, the utility model provides an isolating device for transformer mainly is applied to on the automatic relevant equipment of isolation under 6kV and above transformer charged state.
The electrified detection device 2, the execution motor 9 and the electrified state indicator 6 are all connected with the controller 3, the controller 3 controls the isolation net 5 to expand and contract, controls the switch of the electrified state indicator 6 to enable the electrified state indicator 6 to be turned on or off, and the controller 3 controls the execution motor 9 to operate.
The working principle of the isolating device for the transformer is as follows: the charge detection device 2 is attached to the secondary side (low-voltage side) of the transformer 1, detects the charged state of the transformer 1 from time to time, and sends a charge signal to the controller 3. The controller 3 controls the execution motor 9 to operate according to the electrified signal transmitted by the electrified detection device 2, and the execution motor 9 operates to drive the isolation net 5 to be unfolded or folded. When the transformer 1 is electrified, the execution motor 9 is controlled to rotate in the positive direction to drive the isolation net 5 to unfold along a preset position, and meanwhile, the electrified state indicator 6 arranged on the isolation net 5 is controlled to be started, and the execution motor 9 is controlled to stop after the isolation net 5 is completely unfolded. When the transformer 1 is powered off, the execution motor 9 is controlled to rotate reversely, the execution motor 9 drives the isolation net 5 to be folded along the preset position, the electrified state indicator 6 is controlled to be closed, and the execution motor 9 is controlled to stop after the isolation net 5 is completely folded.
Optionally, when the execution motor 9 is controlled to stop after the separation net 5 is completely unfolded, the execution motor 9 triggers the position and stroke detection device 8, the position and stroke detection device 8 feeds back a signal to the controller 3, and the controller 3 controls the execution motor 9 to stop. Similarly, when the execution motor 9 is controlled to stop after the isolation net 5 is completely contracted, the execution motor 9 triggers the position and stroke detection device 8.
Optionally, the predetermined position is a preset track.
Optionally, the controller is connected to a 220V ac working power supply, and an 220/24V transformer is provided therein to provide a working power supply for the actuator motor and the charged state indicator 6.
Optionally, there are 3 live detection devices 2, and three live detection devices 2 are respectively mounted on a secondary side (low voltage side) busbar of the transformer, detect a live state of the transformer at any time, and respectively send a live signal to the controller 3. When the controller 3 receives the electrification signal of any one of the three electrification detecting devices 2, a control instruction is sent to control the execution motor to operate in the forward direction, and when the controller 3 does not receive the electrification signal of any one of the three electrification detecting devices 2, the execution motor is controlled to rotate in the reverse direction.
The utility model provides an isolating device for transformer has simple structure, convenient operation, characteristics such as function is reliable. The live detection device is used for monitoring the live state of the transformer in real time, when the transformer is in the live state, the isolation net is in the unfolded state, and the live state indicator is controlled to be lightened, so that the isolation and warning effects are effectively achieved. When the transformer is powered off, the isolation net is automatically retracted, the operation space is released, and the maintenance test work is convenient.
In one embodiment, the electrical status indicator 6 is a LED flexible light strip.
Optionally, a soft LED strip is mounted at the position of the upper end of the isolation net protruding the display. Optionally, the soft LED strip is a red soft LED strip. The LED soft lamp strip moves along with the movement of the isolation net. The specific installation position and the color of the LED soft lamp strip can be adjusted according to actual requirements.
The controller 3 controls the switch of the LED soft lamp strip according to the electrified state of the transformer 1, and the LED soft lamp strip indicates whether the transformer 1 is electrified or not, so that external personnel can be clear at a glance, and the effect of safety isolation is realized. Meanwhile, the LED soft lamp strip can also be used as an integrity indication of whether the isolating device for the transformer works normally, namely, when the lamp of the LED soft lamp strip is turned on under normal conditions, the isolating net is in an unfolded state, otherwise, the isolating net is in a folded state. When the states of the two devices are inconsistent, the isolation device for the transformer is judged to have problems, and relevant detection is needed to be carried out for further judgment.
In one embodiment, the other end of the isolation net 5 is fixed on the walking platform 4 through an insulating rod.
One end of the isolation net 5 is fixed on an external fixture of the isolation area, and the other end of the isolation net is supported and fixed on the walking platform 4 by adopting an insulating rod. The isolation net is unfolded and contracted along with the movement of the walking platform 4. Fix on walking platform 4 through the insulator spindle, make it uncharged, protect the operation personnel.
In one embodiment, the isolation net 5 is made of a light insulating material.
The isolation net 5 is a foldable isolation net which is made of a light insulating material, for example, yellow light insulating material (such as nylon, plastic and the like) can be used, and the light insulating material is used, so that the isolation net is convenient to stretch and retract.
In one embodiment, the isolation net 5 is a foldable isolation net or a retractable isolation net.
In one embodiment, the bottom of the walking platform 4 is mounted with a plurality of walking wheels. The rapid movement is realized through the travelling wheels. Optionally, 4 walking wheels are arranged at the bottom of the walking platform 4 and walk along a preset track under the driving of the execution motor.
Alternatively, the execution motor adopts a 24V alternating current motor and is provided with a speed change gear, and the running speed is controlled within 5 km/s.
Referring to fig. 1 and 2, the present invention further provides an isolation system for a transformer, including any one of the above isolation devices for a transformer, further including: and a running track 7 used when the walking platform 4 runs.
The operation track 7 is laid according to the needs of the isolation area, the material is firm and durable, and if the metal material is selected, grounding treatment is needed.
The working principle of the isolating device for the transformer is as follows: the charging detection device 2 is attached to the secondary side (low-voltage side) of the transformer 1, detects the charging state of the transformer 1 from time to time, and sends a charging signal to the controller 3. The controller 3 controls the execution motor 9 to operate according to the electrified signal transmitted by the electrified detection device 2, and the execution motor 9 operates to drive the isolation net 5 to be unfolded or folded. When the transformer 1 is electrified, the execution motor 9 is controlled to rotate in the positive direction to drive the isolation net 5 to unfold along a preset position, and meanwhile, the electrified state indicator 6 arranged on the isolation net 5 is controlled to be started, and the execution motor 9 is controlled to stop after the isolation net 5 is completely unfolded. When the transformer 1 is powered off, the execution motor 9 is controlled to rotate reversely, the execution motor 9 drives the isolation net 5 to be folded along the preset position, the electrified state indicator 6 is controlled to be closed, and the execution motor 9 is controlled to stop after the isolation net 5 is completely folded.
Optionally, when the execution motor 9 is controlled to stop after the separation net 5 is completely unfolded, the execution motor 9 triggers the position and stroke detection device 8, the position and stroke detection device 8 feeds back a signal to the controller 3, and the controller 3 controls the execution motor 9 to stop. Similarly, when the execution motor 9 is controlled to stop after the isolation net 5 is completely contracted, the execution motor 9 triggers the position and stroke detection device 8.
Optionally, the predetermined position is a preset track.
Optionally, the controller is connected to a 220V ac working power supply, and an 220/24V transformer is provided therein to provide a working power supply for the actuator motor and the charged state indicator 6.
Optionally, there are 3 live detection devices 2, and three live detection devices 2 are respectively mounted on a secondary side (low voltage side) busbar of the transformer, detect a live state of the transformer at any time, and respectively send a live signal to the controller 3. When the controller 3 receives the electrification signal of any one of the three electrification detecting devices 2, a control instruction is sent to control the execution motor to operate in the forward direction, and when the controller 3 does not receive the electrification signal of any one of the three electrification detecting devices 2, the execution motor is controlled to rotate in the reverse direction.
The utility model provides an isolating device for transformer has simple structure, convenient operation, characteristics such as function is reliable. The live detection device is used for monitoring the live state of the transformer in real time, when the transformer is in the live state, the isolation net is in the unfolded state, and the live state indicator is controlled to be lightened, so that the isolation and warning effects are effectively achieved. When the transformer is powered off, the isolation net is automatically retracted, the operation space is released, and the maintenance test work is convenient.
In one embodiment, at least one of the two ends of the running rail 7 is provided with a position-stroke detecting device 8. Position switches are installed at both ends of the running rail 7 for controlling the stop of the actuator motor 9.
When the execution motor 9 is controlled to stop after the isolation net 5 is completely unfolded, the execution motor 9 triggers the position and stroke detection device 8, the position and stroke detection device 8 feeds back a signal to the controller 3, and the controller 3 controls the execution motor 9 to stop. Similarly, when the execution motor 9 is controlled to stop after the isolation net 5 is completely contracted, the execution motor 9 triggers the position and stroke detection device 8.
In one of the embodiments, the position stroke detecting means 8 is a position stroke switch.
In one of the embodiments, the charged state indicator 6 is a red LED soft light strip. The red color plays a role in warning.
The controller 3 includes: the power supply interface inputs an external power supply to the logic operation and control module through a power supply switch and a control transformer, the charged signal input interface receives a charged state signal of the transformer and inputs the charged state signal to the logic operation and control module through photoelectric coupling isolation, the travel switch signal input interface receives a travel switch control signal and inputs the photoelectric coupling isolation to the logic operation and control module, the logic operation and control module controls an execution motor to act through the execution motor power supply interface, and the LED lamp belt is controlled through the LED lamp belt signal output interface. The controller also comprises a test button connected with the logic operation and control module.
What has been described above is merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the protection scope of the present invention should be considered.
Claims (10)
1. An isolation device for a transformer, comprising:
the system comprises a charged detection device, a controller, a walking platform, an execution motor, an isolation net and a charged state indicator;
the electrified detection device, the execution motor and the electrified state indicator are all connected with the controller, one end of the isolation net is fixed on an external fixed object, the other end of the isolation net is fixed on the walking platform where the execution motor is located, and the electrified state indicator is installed on the isolation net.
2. The isolation device for a transformer according to claim 1,
the charged state indicator is an LED soft lamp strip.
3. The isolation device of claim 1,
the other end of the isolation net is fixed on the walking platform through an insulating rod.
4. The isolation device for a transformer according to claim 1,
the isolation net is made of light insulating materials.
5. The isolation device for a transformer according to claim 1,
the isolation net is a foldable isolation net or a telescopic isolation net.
6. The isolation device for a transformer according to any one of claims 1 to 5,
a plurality of walking wheels are installed at the bottom of the walking platform.
7. An isolation system for a transformer, comprising the isolation device for a transformer according to any one of claims 1 to 6, further comprising: the running track is used when the walking platform runs.
8. The isolation system for a transformer according to claim 7,
at least one of the two ends of the running track is provided with a position and stroke detection device.
9. The isolation system for a transformer according to claim 8,
the position and stroke detection device is a position and stroke switch.
10. The isolation system for a transformer according to claim 7,
the charged state indicator is a red LED soft lamp strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220240919.8U CN217181190U (en) | 2022-01-28 | 2022-01-28 | Isolation device and system for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220240919.8U CN217181190U (en) | 2022-01-28 | 2022-01-28 | Isolation device and system for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217181190U true CN217181190U (en) | 2022-08-12 |
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ID=82736766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220240919.8U Active CN217181190U (en) | 2022-01-28 | 2022-01-28 | Isolation device and system for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217181190U (en) |
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2022
- 2022-01-28 CN CN202220240919.8U patent/CN217181190U/en active Active
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