Pole-mounted circuit breaker detection partial discharge chamber

Abstract

The utility model relates to a pole-mounted circuit breaker detection partial discharge chamber, which belongs to the technical field of pole-mounted circuit breaker detection devices and comprises a partial discharge chamber body, and a pole-mounted circuit breaker body is placed in the partial discharge chamber body. The grounding device has the beneficial effects that the whole pole-mounted circuit breaker body can be reliably grounded under the action of the grounding cylinder, so that the electric leakage phenomenon caused by equipment insulation damage or other reasons can be prevented, the safety of detection personnel and surrounding equipment is further protected, and the safety of the detection personnel is improved through the movement of the piston rod in the lower fracture grounding cylinder. The lower fracture can be reliably grounded so as to release residual charges and prevent operators from electric shock, the charge quantity in the partial discharge chamber body can be detected through the charge detector, when the charge quantity exceeds a preset value, information is transmitted to the control panel, and the control panel controls the audible and visual alarm to give an audible and visual alarm, so that the electric shock of the operators can be prevented. Therefore, workers can pay attention to safety and carry out follow-up treatment.

Description

Technical Field

[0001] This utility model relates to the technical field of pole-mounted circuit breaker testing devices, and in particular to a pole-mounted circuit breaker partial discharge testing chamber. Background Technology

[0002] A pole-mounted circuit breaker is a critical switching device installed on a power pole, mainly used for fault protection and control of power systems. During the production process, pole-mounted circuit breakers need to be tested in a partial discharge testing room.

[0003] Currently, the grounding device design in the partial discharge room is unreasonable. For example, excessive grounding resistance, insufficient number of grounding electrodes, or unreliable grounding wire connection can lead to the inability to discharge the charge generated by partial discharge in a timely manner. The accumulated charge may interfere with the detection signal and even threaten the safety of equipment and personnel. Furthermore, if the partial discharge room is not equipped with effective temperature and humidity control equipment, the indoor temperature and humidity will change under different seasons and environmental conditions. These temperature and humidity changes will affect the insulation performance and partial discharge characteristics of the pole-mounted circuit breaker, resulting in inaccurate test results. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the main objective of this utility model is to provide a partial discharge detection chamber for pole-mounted circuit breakers.

[0005] The technical solution of this utility model is as follows: a partial discharge chamber for detecting a pole-mounted circuit breaker includes a partial discharge chamber body, inside which a pole-mounted circuit breaker body is placed. A lower break grounding cylinder is installed on the inner wall of the partial discharge chamber body. A grounding cylinder to ground is installed on the inner wall of the partial discharge chamber body below the lower break grounding cylinder. A charge detector is fixedly installed on the inner wall of the partial discharge chamber body between the lower break grounding cylinder and the grounding cylinder. A high-voltage side grounding cylinder is fixedly installed at the top of the inner wall of the partial discharge chamber body on one side of the pole-mounted circuit breaker body. A closing cylinder is fixedly installed on the inner wall of the partial discharge chamber body below the high-voltage side grounding cylinder. An electrical control component box is fixedly connected to the outer side of the partial discharge chamber body. A control panel is fixedly installed at the top of the electrical control component box. Several audible and visual alarms are fixedly connected to the top of the control panel.

[0006] By adopting the above technical solution, the movement of the piston rod inside the lower break grounding cylinder can reliably ground the lower break to release residual charge and prevent electric shock to operators. Through the function of the charge detector, the amount of charge in the partial discharge chamber can be detected. When the amount of charge exceeds the preset value, the information will be transmitted to the control panel, which will then control the audible and visual alarm to issue an audible and visual alarm to alert staff to safety and facilitate subsequent handling.

[0007] In a preferred embodiment, a temperature monitoring component is provided inside the partial discharge chamber body. The temperature monitoring component includes a temperature and humidity sensor fixedly installed at the top of the inner wall of the partial discharge chamber body. A cooling fan is fixedly installed at the top of the inner wall of the partial discharge chamber body, and a heat exchanger is fixedly installed at the rear side of the partial discharge chamber body.

[0008] By adopting the above technical solution, the temperature and humidity inside the partial discharge chamber are adjusted by controlling the start and stop of the cooling fan and heat exchanger, so that the temperature and humidity inside the partial discharge chamber are always appropriate, thus ensuring the accuracy of the test results.

[0009] In a preferred embodiment, the lower break grounding cylinder includes a lower port body, a short cylinder, a fixed frame, and rotating parts. The fixed frame is fixedly installed on the inner wall of the partial discharge chamber body, the short cylinder is fixedly installed inside the fixed frame, and two rotating parts are fixedly connected to the top of the fixed frame.

[0010] By adopting the above technical solution and setting up the fixing bracket, better support can be provided for the short cylinder.

[0011] In a preferred embodiment, a lower port body is rotatably connected between the two rotating parts, and one end of the lower port body is rotatably connected to the piston rod of the short cylinder.

[0012] By adopting the above technical solution, the extension and retraction of the piston rod of the short cylinder can drive one end of the lower port body to rotate around the rotating component as an axis.

[0013] In a preferred embodiment, slide rails are fixedly connected to both sides of the partial discharge chamber body, and several pulleys are slidably installed inside each slide rail. A switch door is slidably connected to the top of the partial discharge chamber body, and the pulleys are rotatably connected to the switch door.

[0014] By adopting the above technical solution, the sliding rail and pulley are used in combination so that the door can slide under the push of the long cylinder piston rod when opening and closing.

[0015] In a preferred embodiment, a long cylinder is fixedly installed on the top of the partial discharge chamber body, the piston rod of the long cylinder is fixedly connected to the switch door, and a voltage regulator is fixedly installed inside the partial discharge chamber body.

[0016] By adopting the above technical solution, the piston rod of the long cylinder can be extended and retracted to push the door to move horizontally, thereby realizing the automatic closing and opening of the door.

[0017] In a preferred embodiment, a central control screen is fixedly installed on the top of the electrical control component box and on one side of the control panel.

[0018] By adopting the above technical solution, staff can easily observe the test data.

[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0020] 1. In this utility model, the extension and retraction of the piston rod inside the high-voltage side grounding cylinder can quickly and accurately connect the high-voltage side to the ground, ensuring that the potential of the high-voltage side is zero, providing a safe electrical environment for testing. Through the action of the grounding cylinder, the entire pole-mounted circuit breaker body can be reliably grounded, forming a complete grounding system. This can prevent leakage caused by equipment insulation damage or other reasons, further protecting the safety of testing personnel and surrounding equipment. Through the movement of the piston rod inside the lower break grounding cylinder, the lower break can be reliably grounded to release residual charge and prevent electric shock to operators. Through the action of the charge detector, the charge amount inside the partial discharge chamber can be detected. When the charge amount exceeds the preset value, the information will be transmitted to the control panel, and the control panel will control the audible and visual alarm to issue an audible and visual alarm to alert personnel to safety and take subsequent actions.

[0021] 2. In this utility model, the temperature monitoring component includes a temperature and humidity sensor fixedly installed on the top of the inner wall of the partial discharge chamber. Through the function of the temperature and humidity sensor, the temperature and humidity inside the partial discharge chamber can be monitored and the information is transmitted to the control panel. Finally, the detection results are displayed on the central control screen. At this time, the staff can adjust the temperature and humidity inside the partial discharge chamber by controlling the start and stop of the cooling fan and heat exchanger, so that the temperature and humidity inside the partial discharge chamber are always appropriate, thus ensuring the accuracy of the detection results. Attached Figure Description

[0022] Figure 1 This utility model provides an overall perspective view of the partial discharge detection chamber for pole-mounted circuit breakers;

[0023] Figure 2 This utility model provides a rear view of a partial discharge detection chamber for a pole-mounted circuit breaker;

[0024] Figure 3 This utility model provides a bottom view of the partial discharge detection chamber for a pole-mounted circuit breaker;

[0025] Figure 4 This utility model provides a schematic diagram of the structure of the lower break grounding cylinder for the partial discharge detection chamber of a pole-mounted circuit breaker.

[0026] Legend: 1. Partial discharge chamber body; 2. Pole-mounted circuit breaker body; 3. Electrical control component box; 4. Central control panel; 5. Control panel; 6. Slide rail; 7. Pulley; 8. Audible and visual alarm; 9. Door opener / closer; 10. Long cylinder; 11. Cooling fan; 12. Heat exchanger; 13. Grounding cylinder; 14. Charge detector; 15. Lower break grounding cylinder; 1501. Lower port body; 1502. Short cylinder; 1503. Fixing frame; 1504. Rotating component; 16. High-voltage side grounding cylinder; 17. Closing cylinder; 18. Temperature and humidity sensor; 19. Voltage regulator. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] Reference Figure 1-4A partial discharge (PD) chamber for detecting a pole-mounted circuit breaker includes a PD chamber body 1, a pole-mounted circuit breaker body 2 placed inside the PD chamber body 1, a lower break grounding cylinder 15 installed on the inner wall of the PD chamber body 1, a grounding cylinder 13 installed on the inner wall of the PD chamber body 1 below the lower break grounding cylinder 15, a charge detector 14 fixedly installed on the inner wall of the PD chamber body 1 between the lower break grounding cylinder 15 and the grounding cylinder 13, and a top of the inner wall of the PD chamber body 1 located at one end of the pole-mounted circuit breaker body 2. A high-voltage side grounding cylinder 16 is fixedly installed on the side. A closing cylinder 17 is fixedly installed on the inner wall of the partial discharge chamber body 1, below the high-voltage side grounding cylinder 16. An electrical control component box 3 is fixedly connected to the outer side of the partial discharge chamber body 1. A control panel 5 is fixedly installed on the top of the electrical control component box 3. Several audible and visual alarms 8 are fixedly connected to the top of the control panel 5. When testing the pole-mounted circuit breaker body 2, the operator can connect the lower break grounding cylinder 15 and the grounding cylinder 13 to the incoming and outgoing lines on the pole-mounted circuit breaker body 2, respectively. The system connects to the incoming terminal and controls the activation of the high-voltage side grounding cylinder 16, the ground-to-ground cylinder 13, and the lower break grounding cylinder 15. The extension and retraction of the piston rod inside the high-voltage side grounding cylinder 16 quickly and accurately connects the high-voltage side to the ground, ensuring zero potential and providing a safe electrical environment for testing. The ground-to-ground cylinder 13 reliably grounds the entire pole-mounted circuit breaker body 2, forming a complete grounding system. This prevents leakage caused by equipment insulation damage or other reasons, further protecting the safety of testing personnel and surrounding equipment. The movement of the piston rod inside the lower break grounding cylinder 15 reliably grounds the lower break, releasing residual charge and preventing electric shock to operators. The charge detector 14 detects the charge level inside the partial discharge chamber body 1. When the charge level exceeds a preset value, the information is transmitted to the control panel 5, which then controls the audible and visual alarm 8 to issue an alarm, alerting personnel to safety and prompting further action.

[0029] Specifically, a temperature monitoring component is installed inside the partial discharge chamber 1. This component includes a temperature and humidity sensor 18 fixedly installed at the top of the inner wall of the partial discharge chamber 1. The sensor 18 monitors the temperature and humidity inside the chamber and transmits the information to the control panel 5. The results are then displayed on the central control screen 4. Operators can adjust the temperature and humidity inside the chamber 1 by controlling the start and stop of the cooling fan 11 and the heat exchanger 12, ensuring that the temperature and humidity remain appropriate and accurate. The cooling fan 11 is fixedly installed at the top of the inner wall of the chamber 1, and the heat exchanger 12 is fixedly installed at the rear of the chamber 1. A grounding cylinder is also included. 15 includes a lower port body 1501, a short cylinder 1502, a fixed frame 1503, and a rotating component 1504. The fixed frame 1503 is fixedly installed on the inner wall of the partial discharge chamber body 1. By extending and retracting the piston rod of the short cylinder 1502, one end of the lower port body 1501 can be pushed to rotate around the rotating component 1504 as an axis, thereby adjusting the contact angle of the lower port body 1501 according to actual usage requirements. The short cylinder 1502 is fixedly installed inside the fixed frame 1503. Two rotating components 1504 are fixedly connected to the top of the fixed frame 1503. The lower port body 1501 is rotatably connected between the two rotating components 1504. One end of the lower port body 1501 is rotatably connected to the piston rod of the short cylinder 1502.

[0030] Specifically, slide rails 6 are fixedly connected to both sides of the partial discharge chamber body 1. Several pulleys 7 are slidably installed inside the slide rails 6. Through the cooperation of the slide rails 6 and pulleys 7, the switch door 9 can slide under the push of the piston rod of the long cylinder 10, which can reduce the friction between the bottom of the switch door 9 and the ground and improve the service life of the switch door 9. The switch door 9 is slidably connected to the top of the partial discharge chamber body 1. The pulleys 7 are rotatably connected to the switch door 9. The long cylinder 10 is fixedly installed on the top of the partial discharge chamber body 1. Through the extension and retraction of the piston rod of the long cylinder 10, the switch door 9 can be pushed to move horizontally to realize the automatic closing and opening of the switch door 9. The piston rod of the long cylinder 10 is fixedly connected to the switch door 9. A voltage regulator 19 is fixedly installed inside the partial discharge chamber body 1. A central control screen 4 is fixedly installed on the top of the electrical control component box 3 and on one side of the control panel 5, which can facilitate the staff to observe the test data.

[0031] Working principle: First, place the pole-mounted circuit breaker body 2 to be tested into the pole-mounted circuit breaker body 2. Then, the operator can connect the lower break grounding cylinder 15 and the grounding cylinder 13 to the incoming and outgoing lines and the incoming terminal on the pole-mounted circuit breaker body 2, respectively. Subsequently, the piston rod of the long cylinder 10 is controlled by the control panel 5 to push the switch door 9 to close, so that the partial discharge chamber body 1 is in a relatively sealed space. Then, the high-voltage side grounding cylinder 16, the grounding cylinder 13, and the lower break grounding cylinder 15 are activated. Through the extension and retraction of the piston rod in the high-voltage side grounding cylinder 16, the circuit breaker body can be quickly... The high-voltage side is accurately connected to the ground to ensure that the potential of the high-voltage side is zero. The grounding cylinder 13 can reliably ground the entire pole-mounted circuit breaker body 2. The movement of the piston rod in the lower break grounding cylinder 15 can reliably ground the lower break to release residual charge and prevent electric shock to the operator. Before the test, the charge detector 14 can detect the charge in the partial discharge chamber body 1. When the charge exceeds the preset value, the information will be transmitted to the control panel 5, and the control panel 5 will control the audible and visual alarm 8 to issue an audible and visual alarm to alert the staff to safety and take subsequent actions.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0033] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A partial discharge detection chamber for a pole-mounted circuit breaker, comprising a partial discharge chamber body (1), characterized in that: The pole-mounted circuit breaker body (2) is placed inside the partial discharge chamber body (1). A lower break grounding cylinder (15) is installed on the inner wall of the partial discharge chamber body (1). A grounding cylinder (13) is installed on the inner wall of the partial discharge chamber body (1) below the lower break grounding cylinder (15). A charge detector (14) is fixedly installed on the inner wall of the partial discharge chamber body (1) between the lower break grounding cylinder (15) and the grounding cylinder (13). A high-voltage side grounding cylinder (16) is fixedly installed at the top of the inner wall and on one side of the pole-mounted circuit breaker body (2). A closing cylinder (17) is fixedly installed on the inner wall of the partial discharge chamber body (1) and below the high-voltage side grounding cylinder (16). An electrical control component box (3) is fixedly connected to the outside of the partial discharge chamber body (1). A control panel (5) is fixedly installed at the top of the electrical control component box (3). Several audible and visual alarms (8) are fixedly connected to the top of the control panel (5).

2. The pole-mounted circuit breaker partial discharge detection chamber according to claim 1, characterized in that: The partial discharge chamber body (1) is equipped with a temperature monitoring component inside. The temperature monitoring component includes a temperature and humidity sensor (18) fixedly installed on the top of the inner wall of the partial discharge chamber body (1). A cooling fan (11) is fixedly installed on the top of the inner wall of the partial discharge chamber body (1). A heat exchanger (12) is fixedly installed on the rear side of the partial discharge chamber body (1).

3. The pole-mounted circuit breaker partial discharge detection chamber according to claim 1, characterized in that: The lower break grounding cylinder (15) includes a lower port body (1501), a short cylinder (1502), a fixed frame (1503), and a rotating component (1504). The fixed frame (1503) is fixedly installed on the inner wall of the partial discharge chamber body (1). The short cylinder (1502) is fixedly installed inside the fixed frame (1503). Two rotating components (1504) are fixedly connected to the top of the fixed frame (1503).

4. The pole-mounted circuit breaker partial discharge detection chamber according to claim 3, characterized in that: A lower port body (1501) is rotatably connected between the two rotating parts (1504), and one end of the lower port body (1501) is rotatably connected to the piston rod of the short cylinder (1502).

5. A partial discharge detection chamber for pole-mounted circuit breakers according to claim 1, characterized in that: The partial discharge chamber body (1) is fixedly connected to slide rails (6) on both sides. Several pulleys (7) are slidably installed inside the slide rails (6). The top of the partial discharge chamber body (1) is slidably connected to a switch door (9). The pulleys (7) are rotatably connected to the switch door (9).

6. The pole-mounted circuit breaker partial discharge detection chamber according to claim 1, characterized in that: A long cylinder (10) is fixedly installed on the top of the partial discharge chamber body (1). The piston rod of the long cylinder (10) is fixedly connected to the switch door (9). A voltage regulator (19) is fixedly installed inside the partial discharge chamber body (1).

7. A partial discharge detection chamber for pole-mounted circuit breakers according to claim 1, characterized in that: A central control screen (4) is fixedly installed on the top of the electrical control component box (3) and on one side of the control panel (5).

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