Isolation soft start device of power generation system

Abstract

The utility model provides an isolation soft start device of a power generation system. The isolation soft start device comprises a stand column, a supporting frame, a main shaft, a soft start isolation switch, an inlet wire isolation switch, a grounding switch, a connecting rod and an operating mechanism. The multiple sets of supporting frames are arranged above the stand columns. The plurality of main shafts are vertically arranged among the plurality of groups of support frames in a penetrating manner; a plurality of soft-start isolating switches are provided, and the plurality of soft-start isolating switches are respectively and vertically arranged above the plurality of groups of support frames; the number of the incoming line isolation switches is multiple, and the multiple incoming line isolation switches are vertically arranged above the multiple sets of supporting frames respectively. The plurality of grounding switches are respectively positioned on one side of the plurality of groups of support frames; the plurality of connecting rods are connected with the main shaft and are parallel to the upright post; the upper ends of the plurality of operating mechanisms and the plurality of connecting rods are respectively connected to the plurality of main shafts; the problems of large occupied area of an isolating switch and large current impact in the circuit starting process in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the field of power generation system safety protection, in particular to an isolation soft starting device for a power generation system. Background Art

[0002] With the continuous development of the power industry, the safety and reliability of power equipment are becoming increasingly important. In modern power systems, power equipment not only transmits and distributes electrical energy but also directly affects public safety and the continuity of power supply. As a key electrical device in power systems, disconnectors are primarily used to disconnect power during equipment inspection and maintenance to ensure the safety of personnel. By effectively isolating the circuit from the power source, disconnectors prevent accidental connection, thereby avoiding potential safety hazards. When the operator needs to disconnect the power, the disconnector mechanically separates the contacts, disconnecting the circuit.

[0003] In current existing technologies, disconnectors are typically used in conjunction with other equipment such as grounding switches and lightning arresters to form a complex system. This decentralized equipment layout can achieve the basic functions of disconnectors, but the increased number of devices leads to increased overall system complexity, a large footprint, and increased difficulty in installation and maintenance. In addition, at the moment the circuit is started, the sudden surge in current can cause a serious impact on the power system and affect the normal operation of other electrical components. In this case, if the voltage cannot be increased smoothly during startup, excessive current may instantly flow into the circuit, causing damage to the equipment and even leading to safety accidents. This situation is particularly evident for high-power equipment. The sharp fluctuations in instantaneous current not only affect the performance of the equipment, but may also have a negative impact on the stability of the entire power system.

[0004] Therefore, how to solve the problem that the isolating switch occupies a large area and the current impact is large during the circuit startup process is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The main purpose of the utility model is to provide a power generation system isolation and starting device, so as to at least solve the problems in the prior art of large footprint of the isolation switch and large current impact during the circuit startup process.

[0006] To achieve the above object, the utility model provides an isolation soft start device for a power generation system, comprising: a column, a support frame, a main shaft, a soft start disconnector, an incoming line disconnector, an earthing switch, a connecting rod, and an operating mechanism; there are multiple groups of support frames, and the multiple groups of support frames are arranged above the column; there are multiple main shafts, and the multiple main shafts are vertically arranged through the multiple groups of support frames; there are multiple soft start disconnectors, and the multiple soft start disconnectors are respectively vertically arranged above the multiple groups of support frames; there are multiple incoming line disconnectors, and the multiple incoming line disconnectors are respectively vertically arranged above the multiple groups of support frames; there are multiple earthing switches, and the multiple earthing switches are respectively located on one side of the multiple groups of support frames; there are multiple connecting rods, and the multiple connecting rods are connected to the main shaft and arranged parallel to the column; there are multiple operating mechanisms, and the upper ends of the multiple operating mechanisms are respectively connected to the multiple connecting rods and then to the multiple main shafts; wherein, the soft start disconnector restricts the starting current during the starting process of the power generation system, the incoming line disconnector is used to control the access and disconnection of the power supply incoming line of the power generation system, the earthing switch is used to safely ground the power generation system, and the operating mechanism is used to control the rotation of the main shaft to control the opening and closing of the soft start disconnector, the incoming line disconnector, and the earthing switch.

[0007] Further, the main shaft includes an earthing main shaft, a first main shaft, and a second main shaft. The earthing main shaft, the first main shaft, and the second main shaft are arranged in parallel at intervals and penetrate through the support frame. The fixed end of the earthing switch is connected to the earthing main shaft.

[0008] Further, the soft start disconnector includes: a first post insulator, a first pull rod insulator, a moving contact, a first static contact, a first contact blade, a first wiring board, and a soft start resistor. The first post insulator is vertically arranged on the support frame; the first pull rod insulator is vertically arranged on the first main shaft; the moving contact is located at the first end of the common post insulator; the first static contact is a flat plate and is located at the first end of the first post insulator; the fixed end of the first contact blade is connected to the moving contact, and the rotating end is in contact with the first static contact for connecting and disconnecting the switch; the first wiring board is a horizontal board with holes and is arranged parallel and close to the contact; both ends of the soft start resistor are respectively connected to the static contact and the moving contact, and the soft start resistor is installed parallel to the contact blade; wherein, the first end of the first pull rod insulator is connected to the contact blade, and the second end of the first pull rod insulator is connected to the first main shaft.

[0009] Further, the incoming line disconnecting switch includes: a second post insulator, a second pull rod insulator, a moving contact, a second static contact, a second contact blade, and a second wiring board. The second post insulator is vertically disposed on the support frame; the second pull rod insulator is vertically disposed on the second main shaft; the moving contact is located at the first end of the common post insulator; the second static contact is a flat plate and is located at the first end of the second post insulator; the fixed end of the second contact blade is connected to the moving contact, and the rotating end is in contact with the second static contact for connecting and disconnecting the switch; the second wiring board is a horizontal board with holes and is disposed parallel and closely on the contact; wherein, the first end of the second pull rod insulator is connected to the contact blade, and the second end of the second pull rod insulator is connected to the second main shaft.

[0010] Further, the earthing switch is connected with a locking mechanism. The locking mechanism is rod-shaped and is disposed parallel to the main shaft. The first end of the locking mechanism is connected to the earthing main shaft, and the second end of the locking mechanism is connected to the support frame. The locking mechanism is used to lock the earthing switch to prevent it from closing.

[0011] Further, a lightning rod and a monitor are disposed on the support frame. The lightning rod is vertically disposed above the support frame. The lightning rod is connected to the second wiring board through a wire, and the monitor is connected to the lightning rod through a wire.

[0012] Further, the operating mechanism further includes: a manual operating mechanism or an electric operating mechanism. The manual operating mechanism is columnar, and the switch is controlled to be switched on and off by rotating the manual operating mechanism through an operating rod. The electric operating mechanism is a box body, and electric operation is performed through a switching button.

[0013] A soft start device for isolating a power generation system according to the technical solution of the present utility model includes: columns, support frames, main shafts, soft start disconnecting switches, incoming line disconnecting switches, earthing switches, connecting rods, and operating mechanisms; there are multiple groups of support frames, and the multiple groups of support frames are disposed above the columns; there are multiple main shafts, and the multiple main shafts are vertically penetrated between the multiple groups of support frames; there are multiple soft start disconnecting switches, and the multiple soft start disconnecting switches are respectively vertically disposed above the multiple groups of support frames; there are multiple incoming line disconnecting switches, and the multiple incoming line disconnecting switches are respectively vertically disposed above the multiple groups of support frames; there are multiple earthing switches, and the multiple earthing switches are respectively located on one side of the multiple groups of support frames; there are multiple connecting rods, and the multiple connecting rods are connected to the main shafts and are disposed parallel to the columns; there are multiple operating mechanisms, and the upper ends of the multiple operating mechanisms are respectively connected to the multiple connecting rods and extend to the multiple main shafts; wherein, the soft start disconnecting switch limits the starting current during the starting process of the power generation system, the incoming line disconnecting switch is used to control the access and disconnection of the power supply incoming line of the power generation system, the earthing switch is used to safely ground the power generation system, and the operating mechanism is used to control the rotation of the main shaft to control the switching on and off of the soft start disconnecting switch, the incoming line disconnecting switch, and the earthing switch, solving the problems of large floor area of the disconnecting switch and large current impact during the circuit starting process in the prior art. Description of the Drawings

[0014] The accompanying drawings of the specification, which form a part of this application, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0015] Figure 1 is a front view of the overall structure of an isolation soft start device for a power generation system according to an embodiment of the present utility model;

[0016] Figure 2 is a side view of the overall structure of an isolation soft start device for a power generation system according to an embodiment of the present utility model;

[0017] Figure 3 is a schematic diagram of a partial structure of an isolation soft start device for a power generation system according to an embodiment of the present utility model;

[0018] Among them, the above-mentioned drawings include the following reference numerals:

[0019] 10, column; 20, support frame; 30, main shaft; 31, grounding main shaft; 32, first main shaft; 33, second main shaft; 40, soft start isolation switch; 41, first post insulator; 42, first pull rod insulator; 43, first static contact; 44, first moving contact; 45, first wiring board; 46, soft start resistor; 50, moving contact; 60, common post insulator; 70, incoming line isolation switch; 71, second post insulator; 72, second pull rod insulator; 73, second static contact; 74, second moving contact; 75, second wiring board; 80, grounding switch; 90, connecting rod; 100, operating mechanism; 110, locking mechanism; 120, lightning rod; 130, monitor. Detailed implementation manners

[0020] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments may be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0021] An isolation soft start device for a power generation system according to an embodiment of the present utility model, as Figure 1As shown in the figure, it includes: a column 10, a support frame 20, a main shaft 30, a soft start disconnector 40, an incoming line disconnector 70, an earthing switch 80, a connecting rod 90, and an operating mechanism 100; there are multiple groups of support frames 20, and multiple groups of support frames 20 are arranged above the column 10; there are multiple main shafts 30, and multiple main shafts 30 are vertically arranged through multiple groups of support frames 20. This structural design makes the entire device have high stability and reliability and can adapt to various complex working environments; there are multiple soft start disconnectors 40, and multiple soft start disconnectors 40 are respectively vertically arranged above multiple groups of support frames 20, which can effectively limit the starting current during the starting process of the power generation system, avoid damage to the power generation system equipment caused by excessive current impact, extend the service life of the equipment, and at the same time, contribute to improving the stability and reliability of the system; there are multiple incoming line disconnectors 70, and multiple incoming line disconnectors 70 are respectively vertically arranged above multiple groups of support frames 20, which can accurately control the access and disconnection of the power supply incoming line of the power generation system, facilitate safely disconnecting the power supply during the maintenance and repair of the power generation system, and improve the safety of operation; there are multiple earthing switches 80, and multiple earthing switches 80 are respectively located on one side of multiple groups of support frames 20, which can safely ground the power generation system when needed, prevent the occurrence of electric leakage and accidental electric shock accidents, and provide reliable safety protection for the staff and equipment; there are multiple connecting rods 90, and multiple connecting rods 90 are connected to the main shaft 30 and are arranged parallel to the column 10; there are multiple operating mechanisms 100, and the upper ends of multiple operating mechanisms 100 are respectively connected to multiple connecting rods 90 and then to multiple main shafts 30; among them, the soft start disconnector 40 limits the starting current during the starting process of the power generation system, the incoming line disconnector 70 is used to control the access and disconnection of the power supply incoming line of the power generation system, the earthing switch 80 is used to safely ground the power generation system, and the operating mechanism 100 is used to control the rotation of the main shaft 30 to control the opening and closing of the soft start disconnector 40, the incoming line disconnector 70, and the earthing switch 80, so that the entire device has high stability and reliability, can adapt to various complex working environments, and is simple and convenient to operate, can quickly and accurately control different switches, and improves work efficiency.

[0022] Furthermore, as Figure 3 shown in the figure, the main shaft 30 includes a grounded main shaft 31, a first main shaft 32, and a second main shaft 33. The grounded main shaft 31, the first main shaft 32, and the second main shaft 33 are arranged at intervals and in parallel, and pass through the support frame 20. This layout makes the entire main shaft system have better stability. The three main shafts work together to share various loads during the operation of the equipment, reduce the risk of deformation or damage caused by uneven stress on a single main shaft, improve the overall reliability and service life of the equipment. The fixed end of the earthing switch 80 is connected to the grounded main shaft 31, which can ensure that the grounding function can be quickly and stably achieved when grounding operation is required, improving the safety of the equipment. In case of electrical faults or when maintenance and repair are needed, it can effectively prevent the occurrence of accidental accidents such as electric shock.

[0023] Further, as Figure 1 shown, the soft-start disconnector 40 includes: a first post insulator 41, a first tension insulator 42, a moving contact 50, a first static contact 43, a first contact blade 44, a first wiring board 45, and a soft-start resistor 46. The first post insulator 41 is vertically disposed on the support frame 20; the first tension insulator 42 is vertically disposed on the first main shaft 32, providing stable support for the soft-start disconnector, effectively preventing switch displacement or damage caused by external force or vibration, and enhancing the structural stability; the moving contact 50 is located at the first end of the common post insulator 60; the first static contact 43 is a flat plate, and the first static contact 43 is located at the first end of the first post insulator 41; the fixed end of the first contact blade 44 is connected to the moving contact 50, and the rotating end is in contact with the first static contact 43, used to connect and disconnect the switch, with close and reliable cooperation, capable of accurately connecting and disconnecting the switch, ensuring the normal operation of the circuit; the first wiring board 45 is a horizontal board with holes, and the first wiring board 45 is parallel and closely attached to the first static contact 43, increasing the contact area, reducing the contact resistance, and improving the efficiency and reliability of current transmission; both ends of the soft-start resistor 46 are respectively connected to the static contact and the moving contact 50, and the soft-start resistor 46 is parallelly installed on the first contact blade 44. The setting of the soft-start resistor 46 enables the device to limit the instantaneous impact of current during startup, avoiding damage to the circuit and equipment caused by excessive startup current, and improving the safety and stability of device startup; wherein, the first end of the first tension insulator 42 is connected to the first contact blade 44, and the second end of the first tension insulator 42 is connected to the first main shaft 32, realizing a firm connection between different components. The first tension insulator 42 plays a good supporting and fixing role during the connection process, ensuring the connection stability between the first contact blade 44 and the first main shaft 32, reducing the probability of faults caused by loose connection. During the operation of the device, this connection method can withstand certain mechanical stress and electrical stress, ensuring the reliable operation of the system.

[0024] Further, as Figure 1As shown in the figure, the incoming line disconnector 70 includes: a second post insulator 71, a second tension insulator 72, a second static contact 73, a second moving blade 74, a second terminal board 75. The second post insulator 71 is vertically arranged on the support frame 20, providing stable support for the disconnector, capable of withstanding certain mechanical stress and electrical load, ensuring that the equipment will not tilt or shake during operation; the second tension insulator 72 is vertically arranged on the second main shaft 33, ensuring the stability and perpendicularity of the tension rod, enabling the operating mechanism to accurately transmit power; the moving contact 50 is located at the first end of the common post insulator 60; the second static contact 73 is a flat plate, increasing the contact area, reducing the contact resistance, and improving the conductivity. At the same time, the flat-plate-shaped static contact is easier to process and install, ensuring the reliability of contact. The second static contact 73 is located at the first end of the second post insulator 71; the fixed end of the second moving blade 74 is connected to the moving contact 50, and the rotating end is in contact with the second static contact 73, used to connect and disconnect the switch; the second terminal board 75 is a horizontal board with holes, and the second terminal board 75 is arranged parallel and closely attached to the second static contact 73, facilitating the connection and fixation of wires, improving the reliability and stability of wiring. Among them, the first end of the second tension insulator 72 is connected to the second moving blade 74, and the second end of the second tension insulator 72 is connected to the second main shaft 33. By driving the second main shaft 33 to rotate through the operating mechanism, this connection method makes the operation more convenient and flexible, and can perform switch operations quickly and accurately.

[0025] Furthermore, as Figure 1 shown in the figure, the earthing switch 80 is connected with a locking mechanism 110. The locking mechanism 110 is rod-shaped and arranged parallel to the main shaft 30. The first end of the locking mechanism 110 is connected to the earthing main shaft 31, and the second end of the locking mechanism 110 is connected to the support frame 20, forming a stable structure. This connection method can ensure that the locking mechanism 110 maintains a stable state during operation and will not loosen due to external interference or vibration, thus ensuring the locking effect on the earthing switch. The locking mechanism 110 is used to lock the earthing switch 80 to prevent it from closing, which can greatly reduce the risk of electrical accidents caused by the accidental closing of the earthing switch, providing reliable safety protection for operators and equipment.

[0026] Furthermore, as <{ Figure 2As shown, a lightning rod 120 and a monitor 130 are provided on the support frame 20. The lightning rod 120 is vertically disposed above the support frame 20. The lightning rod 120 is connected to the second wiring board 75 through a wire. The monitor 130 is connected to the lightning rod 120 through a wire. The setting of the lightning rod 120 can effectively prevent direct damage to the support frame 20 and related equipment caused by lightning. When lightning occurs, the lightning rod vertically disposed above the support frame 20 can quickly attract lightning and conduct the lightning current to the second wiring board 75 through the wire, safely leading it into the ground, greatly reducing the risk of damage to the entire system by lightning, protecting the support frame 20 and other equipment installed on the support frame 20, and improving the safety and stability of the equipment.

[0027] Further, as Figure 1 shown, the operating mechanism 100 further includes: a manual operating mechanism or an electric operating mechanism. The manual operating mechanism is columnar, and the switch is controlled to open and close by rotating the manual operating mechanism through an operating rod. Its design is simple and intuitive, enabling convenient operation in the absence of power supply or in case of emergency. The electric operating mechanism is a box, and the box design can effectively protect the internal circuit and components, avoiding accidental accidents caused by reasons such as accidental touch. The electric operation is performed through a switch-on and -off button, with high operation flexibility, adapting to different scenario requirements and improving safety.

[0028] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An isolation soft start device for a power generation system, characterized in that, Comprising: A column (10); Support frames (20), with multiple groups of said support frames (20) arranged above the column (10); Main shafts (30), with multiple main shafts (30), and multiple main shafts (30) vertically penetrating and arranged between multiple groups of support frames (20); Soft start disconnectors (40), with multiple soft start disconnectors (40), and multiple soft start disconnectors (40) respectively vertically arranged above multiple groups of support frames (20); Incoming line disconnectors (70), with multiple incoming line disconnectors (70), and multiple incoming line disconnectors (70) respectively vertically arranged above multiple groups of support frames (20); Earthing switches (80), with multiple earthing switches (80), and multiple earthing switches (80) respectively located on one side of multiple groups of support frames (20); Link rods (90), with multiple link rods (90), and multiple link rods (90) connected to the main shaft (30) and arranged parallel to the column (10); Operating mechanisms (100), with multiple operating mechanisms (100), and the upper ends of multiple operating mechanisms (100) respectively connected to multiple link rods (90) and then to multiple main shafts (30); Wherein, the soft start disconnector (40) restricts the starting current during the starting process of the power generation system, the incoming line disconnector (70) is used to control the access and disconnection of the power supply incoming line of the power generation system, the earthing switch (80) is used to safely earth the power generation system, and the operating mechanism (100) is used to control the rotation of the main shaft (30) to control the opening and closing of the soft start disconnector (40), the incoming line disconnector (70) and the earthing switch (80).

2. The isolation soft start device for a power generation system according to claim 1, characterized in that, The main shaft (30) includes an earthing main shaft (31), a first main shaft (32) and a second main shaft (33), the earthing main shaft (31), the first main shaft (32) and the second main shaft (33) are arranged at intervals in parallel and penetrate through the support frame (20), and the fixed end of the earthing switch (80) is connected to the earthing main shaft (31).

3. The isolation soft start device for a power generation system according to claim 2, wherein The soft start disconnector (40) includes: A first post insulator (41), with the first post insulator (41) vertically arranged on the support frame (20); A first pull rod insulator (42), with the first pull rod insulator (42) vertically arranged on the first main shaft (32); A moving contact (50), with the moving contact (50) located at the first end of the common post insulator (60); A first static contact (43), with the first static contact (43) being a flat plate, and the first static contact (43) located at the first end of the first post insulator (41); A first contact blade (44), with the fixed end of the first contact blade (44) connected to the moving contact (50) and the rotating end in contact with the first static contact (43) for connecting and disconnecting the switch; A first wiring board (45), with the first wiring board (45) being a cross board with holes, and the first wiring board (45) arranged parallel and closely attached to the first static contact (43); Soft start resistor (46), both ends of the soft start resistor (46) are respectively connected to the static contact and the moving contact (50), and the soft start resistor (46) is installed in parallel with the first contact blade (44); Among them, the first end of the first pull rod insulator (42) is connected to the first contact blade (44), and the second end of the first pull rod insulator (42) is connected to the first main shaft (32).

4. The isolation soft start device for a power generation system according to claim 3, characterized in that, The incoming line disconnecting switch (70) includes: The second post insulator (71), the second post insulator (71) is vertically arranged on the support frame (20); The second pull rod insulator (72), the second pull rod insulator (72) is vertically arranged on the second main shaft (33); The moving contact (50), the moving contact (50) is located at the first end of the common post insulator (60); The second static contact (73), the second static contact (73) is a flat plate, and the second static contact (73) is located at the first end of the second post insulator (71); The second contact blade (74), the fixed end of the second contact blade (74) is connected to the moving contact (50), and the rotating end is in contact with the second static contact (73) for closing and opening the switch; The second wiring board (75), the second wiring board (75) is a cross board with holes, and the second wiring board (75) is arranged parallel and closely attached to the contact (63); Among them, the first end of the second pull rod insulator (72) is connected to the second contact blade (74), and the second end of the second pull rod insulator (72) is connected to the second main shaft (33).

5. The isolation soft start device for a power generation system according to claim 2, characterized in that, The earthing switch (80) is connected with a locking mechanism (110), the locking mechanism (110) is rod-shaped, arranged in parallel with the main shaft (30), the first end of the locking mechanism (110) is connected to the earthing main shaft (31), the second end of the locking mechanism (110) is connected to the support frame (20), and the locking mechanism (110) is used to lock the earthing switch (80) to prevent it from closing.

6. The isolation soft start device for a power generation system according to claim 4, wherein, A lightning rod (120) and a monitor (130) are arranged on the support frame (20), the lightning rod (120) is vertically arranged above the support frame (20), the lightning rod (120) is connected to the second wiring board (75) through a wire, and the monitor (130) is connected to the lightning rod (120) through a wire.

7. The isolation soft start device for a power generation system according to claim 1, characterized in that, The operating mechanism (100) further includes: a manual operating mechanism or an electric operating mechanism. The manual operating mechanism is columnar, and the switch is controlled to be opened and closed by rotating the manual operating mechanism through an operating rod. The electric operating mechanism is a box body, and electric operation is performed through a closing and opening button.

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