CN111371033B - Environment-friendly solid insulation metal-enclosed switchgear suitable for severe cold environment - Google Patents
Environment-friendly solid insulation metal-enclosed switchgear suitable for severe cold environment Download PDFInfo
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- CN111371033B CN111371033B CN202010189790.8A CN202010189790A CN111371033B CN 111371033 B CN111371033 B CN 111371033B CN 202010189790 A CN202010189790 A CN 202010189790A CN 111371033 B CN111371033 B CN 111371033B
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
Abstract
The invention discloses an environment-friendly solid insulated metal-enclosed switchgear suitable for alpine environment, belonging to the field of solid insulated switchgear, and the environment-friendly solid insulated metal-enclosed switchgear suitable for alpine environment comprises a solid insulated metal-enclosed switchgear cabinet, wherein a power control mechanism box is arranged in the solid insulated metal-enclosed switchgear cabinet, so that components such as a circuit breaker, an isolating switch and the like can be integrated in the insulated metal-enclosed switchgear cabinet, the discharge influence on the outside during the working process of the power switchgear is reduced, and the influence on the power switchgear by the outside environment is reduced, compared with the prior art, the influence on the outside environment is reduced, the automation of a distribution network is easy to realize, charges can be guided to a discharge mechanism, and the damage of arc discharge to the solid insulated switchgear caused by partial overflow charges in the low-temperature environment is reduced through resistance end discharge consumption, thereby improving the safety of the power line in the working state.
Description
Technical Field
The invention relates to the field of solid insulation switch equipment, in particular to environment-friendly solid insulation metal-enclosed switch equipment suitable for a high and cold environment.
Background
The solid insulated metal enclosed switchgear is a common electrical complete equipment which is used most frequently in an electric power system, various original components are combined together according to a certain rule, an insulating structure which is formed by completely coating or fixedly sealing a high-voltage element of a main circuit of the switchgear by adopting a solid medium is mainly adopted, and the switchgear and a control device which are completely assembled and enclosed in a grounded metal shell are externally connected. The switch equipment is enclosed in the grounded metal shell, except for the incoming and outgoing wires, the switch equipment is completely enclosed by the grounded metal shell, and the shell meets a specific protection level so as to protect the internal equipment from the external influence. The solid insulation technology mainly means that a charged part of a main circuit of the switch equipment is coated and closed by a solid insulating material, a barrier is arranged, high electric field intensity is transferred to and borne by the inside of the solid insulating material, and a metal conducting layer or a semi-conducting coating is coated on some structures of the outer surface.
The existing solid insulation metal closed switch equipment develops towards product intellectualization, and the intelligent operation and maintenance degree of the product is continuously promoted. The temperature of external parts such as a cable head and a connecting bus of a product, the temperature, the humidity, the switching state, smoke sensing signals, gating signals and the like of the environment can be monitored, and the temperature of internal conductive parts of a switch, the closing and opening speed of the switch during the operation of the switch, the mechanical characteristic parameters such as synchronization, bouncing and the like can also be monitored.
The design and production of the solid insulated switchgear need to solve the technology of shielding and continuity, insulating material surface metallization, isolation, grounding, electric field optimization, etc., and the purpose is to realize that the outer surface of the coated insulating medium is coated with a conductive semi-conductive shielding layer and can be directly and reliably grounded, and reduce and eliminate the influence of the use environment on the product, but in the actual use process of the existing solid insulated switchgear, when the switch is in the working state, the current passes through the internal circuit, the insulativity of part of the medium in the solid insulated switchgear can be changed, for example, the resistivity of part of the insulating rubber material in the low temperature environment changes with the temperature, under the low temperature condition, the ion migration quantity in the polymer changes due to the temperature reduction, so that part of the insulating material in the part of the solid insulated switchgear is changed from the insulating state to the conducting state, therefore, neutral particles in the medium generate free electrons, and when the free action generated in the medium reaches a certain degree, arc discharge is generated to damage the solid insulated switchgear, so that the whole circuit is seriously influenced.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to provide environment-friendly solid insulated metal-enclosed switchgear suitable for high and cold environments, which can integrate original components such as a circuit breaker and an isolating switch into the insulated metal-enclosed switchgear, reduce the discharge influence on the outside during the working process of the power switchgear, and reduce the influence on the power switchgear by the external environment.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An environment-friendly solid insulated metal-enclosed switchgear suitable for a severe cold environment comprises a solid insulated metal-enclosed switchgear, wherein a power control mechanism box is arranged in the solid insulated metal-enclosed switchgear, the left end of the power control mechanism box is fixedly connected with the inner wall of the solid insulated metal-enclosed switchgear, the left end of the solid insulated metal-enclosed switchgear is fixedly connected with an organic power control panel, the organic power control panel is electrically connected with the power control mechanism box, the right end of the power control mechanism box is fixedly connected with an element substrate, one end of the element substrate close to the power control mechanism box is fixedly connected with a cable wiring pipe, the left end of the cable wiring pipe is fixedly connected with the power control mechanism box, the right end of the element substrate is fixedly connected with a three-station isolating switch, the right end of the three-station isolating switch is fixedly connected with a bus module, and the lower end of the three-station isolating switch is fixedly connected with a circuit breaker, the feeder sleeve is fixedly connected to the right end of the circuit breaker, a cable chamber is arranged on the lower side of the element substrate, a work chamber partition plate is arranged on the right end of the cable chamber, the lower end of the feeder sleeve penetrates through the work chamber partition plate and is fixedly connected with the cable chamber, original components such as the circuit breaker and an isolating switch can be integrated in an insulated metal closed device, the discharging influence on the outside in the working process of the power switch device is reduced, meanwhile, the influence on the power switch device by the external environment is reduced, compared with the prior art, the influence on the external environment is reduced, the automation of a distribution network is easy to realize, electric charges can be guided to a discharging mechanism, and discharging consumption is carried out through a resistor end, so that the damage of electric arc discharge caused by partial overflowing electric charges under the low-temperature environment to the solid insulated switch device is reduced, and the safety of a power line in the working state is further improved.
Furthermore, a voltage transformer is arranged in the cable chamber, the lower end of the voltage transformer is fixedly connected with the bottom end of the inner side of the solid insulation metal closed switch cabinet, and a mutual inductance connecting pipe is fixedly connected with the right end of the voltage transformer. The voltage transformer and the mutual inductance connecting pipe are additionally arranged below the cable chamber, so that valuable equipment, a motor and a transformer in a line can be protected when the line breaks down.
Furthermore, a first single branch distributing pipe, a central distributing pipe and a second single branch distributing pipe are sequentially sleeved at the left end of the feeder sleeve, a bearing sleeve is fixedly connected to the upper end of the mutual inductance connecting pipe, and the upper end of the bearing sleeve is in interference fit with the central distributing pipe. The first single branch distributing pipe, the central distributing pipe and the second single branch distributing pipe are sleeved on the feeder sleeve, so that connection with different electric equipment is conveniently established.
Furthermore, the lower ends of the central branch pipe, the second single branch pipe and the first single branch pipe are respectively and electrically connected with different electric equipment, and charge discharging rings are sleeved at the joints of the central branch pipe, the second single branch pipe and the first single branch pipe and the electric equipment. Through the charge discharge ring that cup joints at central branch wire pipe, the single branch wire pipe of second and the single branch wire pipe of first and consumer junction, be convenient for under the junction low temperature environment, when insulating nature appears changing, the resistance end discharges and consumes to reduce the electric arc discharge that the part excessive charge caused under the low temperature environment and to the destruction of solid insulated switchgear, and then promote the security under the power line operating condition.
Furthermore, a discharge arc-shaped groove is formed in the charge discharge ring, an elastic pressing plate clamping plate is arranged in the discharge arc-shaped groove, the left end and the right end of the elastic pressing plate clamping plate are fixedly connected with an elastic reset rib and a heat release resistance wire respectively, the left end of the elastic reset rib is fixedly connected with the left side wall of the discharge arc-shaped groove, the lower end of the elastic pressing plate clamping plate is fixedly connected with an anode discharge electric shock, the inner wall of the discharge arc-shaped groove on the charge discharge ring is fixedly connected with a cathode discharge electric shock, and the anode discharge electric shock is matched with the cathode discharge electric shock. The charge discharge ring is convenient for being connected under the low-temperature environment, and when the insulativity changes, the resistance end discharges and consumes, thereby reducing the damage of arc discharge caused by partial overflow charge under the low-temperature environment to the solid insulation switch equipment, and further improving the safety of the power line under the working state.
Furthermore, a soaking long groove is formed in the upper end of the charge discharge ring and communicated with the right side wall of the discharge arc groove. The soaking long groove is additionally arranged on the charge discharging ring, so that heat generated by the heat-releasing resistance wire is conveniently conducted to the outer layer of the charge discharging ring.
Furthermore, the solid insulating material used by the feeder sleeve mainly comprises unsaturated polyester bulk molding compound, bulk molding compound and other thermosetting insulating materials, and the main material of the bus module is vacuum-cast epoxy resin and pressure-cast epoxy resin.
Furthermore, all inserts in the solid insulated metal-enclosed switch cabinet are subjected to full-automatic ultrasonic cleaning and APG (automatic pressure generator) forming process controlled by a full-automatic material mixing system before installation, and the surface layer of the solid insulated metal-enclosed switch cabinet is subjected to full-automatic sand blasting and electric arc zinc melting to control the full-grounding treatment process of the surface of the epoxy resin insulation layer.
Further, the bottom wall of the discharge arc-shaped groove at the upper end of the charge discharge ring is fixedly connected with a fixed separation magnetic stripe, the lower end of the elastic pressing sheet clamping plate is fixedly connected with a movable separation magnetic stripe, and the fixed separation magnetic stripe and the movable separation magnetic stripe are the same in magnetic pole close to one side. The fixed separation magnetic stripe and the movable separation magnetic stripe on the inner side of the elastic pressing sheet clamping plate are additionally arranged on the surface layer of the charge discharge ring, so that the elastic pressing sheet clamping plate and the charge discharge ring are in a separated state under a normal state.
Furthermore, an electromagnetic coil is arranged in the elastic pressing sheet clamping plate and is matched with the fixed separation magnetic strip. The electromagnetic coil is additionally arranged in the elastic pressing sheet clamping plate, so that when current passes through the elastic pressing sheet clamping plate, the contact of a positive electrode discharge electric shock and a negative electrode discharge electric shock is accelerated.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme can realize with the circuit breaker, original paper integration such as isolator is in insulating metal enclosed equipment, reduce the influence of discharging to external in the power switching equipment working process, reduce the influence of external environment to power switching equipment simultaneously, compare in prior art, reduce the influence of external environment, easily realize joining in marriage net automation outward, can also guide the electric charge to discharge mechanism, through resistance end discharge consumption, thereby reduce the electric arc discharge that partial excessive electric charge caused under the low temperature environment and discharge the destruction to solid insulation switchgear, and then promote the security under the power line operating condition.
(2) And a voltage transformer is arranged in the cable chamber, the lower end of the voltage transformer is fixedly connected with the bottom end of the inner side of the solid insulation metal closed switch cabinet, and the right end of the voltage transformer is fixedly connected with a mutual inductance connecting pipe. The voltage transformer and the mutual inductance connecting pipe are additionally arranged below the cable chamber, so that valuable equipment, a motor and a transformer in a line can be protected when the line breaks down.
(3) The left end of the feeder sleeve is sequentially sleeved with a first single branch distributing pipe, a central distributing pipe and a second single branch distributing pipe, the upper end of the mutual inductance connecting pipe is fixedly connected with a bearing sleeve, and the upper end of the bearing sleeve is in interference fit with the central distributing pipe. The first single branch distributing pipe, the central distributing pipe and the second single branch distributing pipe are sleeved on the feeder sleeve, so that connection with different electric equipment is conveniently established.
(4) The lower ends of the central branch pipe, the second single branch pipe and the first single branch pipe are respectively electrically connected with different electric equipment, and charge discharging rings are sleeved at the joints of the central branch pipe, the second single branch pipe and the first single branch pipe and the electric equipment. Through the charge discharge ring that cup joints at central branch wire pipe, the single branch wire pipe of second and the single branch wire pipe of first and consumer junction, be convenient for under the junction low temperature environment, when insulating nature appears changing, the resistance end discharges and consumes to reduce the electric arc discharge that the part excessive charge caused under the low temperature environment and to the destruction of solid insulated switchgear, and then promote the security under the power line operating condition.
(5) The charge discharge ring is provided with a discharge arc-shaped groove, an elastic pressing plate clamping plate is arranged in the discharge arc-shaped groove, the left end and the right end of the elastic pressing plate clamping plate are fixedly connected with an elastic reset rib and a heat release resistance wire respectively, the left end of the elastic reset rib is fixedly connected with the left side wall of the discharge arc-shaped groove, the lower end of the elastic pressing plate clamping plate is fixedly connected with a positive electrode discharge electric shock, the inner wall of the discharge arc-shaped groove on the charge discharge ring is fixedly connected with a negative electrode discharge electric shock, and the positive electrode discharge electric shock is matched with the negative electrode discharge electric shock. The charge discharge ring is convenient for being connected under the low-temperature environment, and when the insulativity changes, the resistance end discharges and consumes, thereby reducing the damage of arc discharge caused by partial overflow charge under the low-temperature environment to the solid insulation switch equipment, and further improving the safety of the power line under the working state.
(6) The upper end of the charge discharging ring is provided with a soaking long groove which is communicated with the right side wall of the discharging arc-shaped groove. The soaking long groove is additionally arranged on the charge discharging ring, so that heat generated by the heat-releasing resistance wire is conveniently conducted to the outer layer of the charge discharging ring.
(7) The fixed separation magnetic stripe of arc wall fixedly connected with of discharging of charge discharging ring upper end, elasticity preforming splint lower extreme fixedly connected with activity separation magnetic stripe, fixed separation magnetic stripe and activity separation magnetic stripe are close to one side magnetic pole each other the same. The fixed separation magnetic stripe and the movable separation magnetic stripe on the inner side of the elastic pressing sheet clamping plate are additionally arranged on the surface layer of the charge discharge ring, so that the elastic pressing sheet clamping plate and the charge discharge ring are in a separated state under a normal state.
(8) An electromagnetic coil is arranged in the elastic pressing sheet clamping plate and is matched with the fixed separation magnetic strip. The electromagnetic coil is additionally arranged in the elastic pressing sheet clamping plate, so that when current passes through the elastic pressing sheet clamping plate, the contact of a positive electrode discharge electric shock and a negative electrode discharge electric shock is accelerated.
Drawings
FIG. 1 is a side cross-sectional view of the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
FIG. 3 is a front view of the present invention;
FIG. 4 is a cross-sectional view of the charge discharge ring portion of the present invention in a normal state;
fig. 5 is a sectional view of the charge discharge ring portion of the present invention in an operating state.
The reference numbers in the figures illustrate:
the device comprises a solid insulated metal closed switch cabinet 1, an electric control mechanism box 2, an electromechanical control panel 3, a component substrate 4, a cable wiring pipe 5, a three-station isolating switch 6, a bus module 7, a breaker 8, a feeder bushing 9, a cable chamber 10, a voltage transformer 11, a mutual inductance connecting pipe 12, a bearing bushing 13, a chamber partition plate 14, a first single branch distributing pipe 15, a central distributing pipe 16, a second single branch distributing pipe 17, a charge discharging ring 18, an elastic pressing clamp plate 19, a heat releasing resistance wire 20, an elastic resetting rib 21, a positive discharging contact 22 and a negative discharging contact 23.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements.
Example 1:
referring to fig. 1-5, an environment-friendly solid insulated metal-enclosed switchgear suitable for severe cold environment comprises a solid insulated metal-enclosed switchgear 1, a power control mechanism box 2 is disposed in the solid insulated metal-enclosed switchgear 1, the left end of the power control mechanism box 2 is fixedly connected to the inner wall of the solid insulated metal-enclosed switchgear 1, the left end of the solid insulated metal-enclosed switchgear 1 is fixedly connected to an organic control panel 3, the organic control panel 3 is electrically connected to the power control mechanism box 2, the right end of the power control mechanism box 2 is fixedly connected to an element substrate 4, one end of the element substrate 4 close to the power control mechanism box 2 is fixedly connected to a cable routing tube 5, the left end of the cable routing tube 5 is fixedly connected to the power control mechanism box 2, the right end of the element substrate 4 is fixedly connected to a three-position isolating switch 6, and the right end of the three-position isolating switch 6 is fixedly connected to a bus module 7, the lower end of the three-position isolating switch 6 is fixedly connected with a breaker 8, the right end of the breaker 8 is fixedly connected with a feeder sleeve 9, the lower side of the element substrate 4 is provided with a cable chamber 10, the right end of the cable chamber 10 is provided with a work chamber partition plate 14, the lower end of the feeder sleeve 9 penetrates through the work chamber partition plate 14 and is fixedly connected with the cable chamber 10, can realize the integration of elements such as a circuit breaker, an isolating switch and the like in the insulated metal enclosed equipment, reduce the discharge influence on the outside during the working process of the power switch equipment, reduce the influence on the power switch equipment by the external environment, compared with the prior art, the influence of the external environment is reduced, the automation of the distribution network is easy to realize, the charges can be guided to the discharging mechanism and discharged and consumed through the resistor end, therefore, the damage of arc discharge to solid insulation switch equipment caused by partial overflowing electric charge in a low-temperature environment is reduced, and the safety of a power line in a working state is improved.
Referring to fig. 1, a voltage transformer 11 is arranged in a cable chamber 10, the lower end of the voltage transformer 11 is fixedly connected with the bottom end of the inner side of a solid insulated metal enclosed switch cabinet 1, and a mutual inductance connecting pipe 12 is fixedly connected with the right end of the voltage transformer 11. The voltage transformer 11 and the mutual inductance connecting pipe 12 are additionally arranged below the cable chamber 10, so that valuable equipment, motors and transformers in the line can be protected when the line fails.
Referring to fig. 2, the left end of the feeder sleeve 9 is sequentially sleeved with a first single branch distributing pipe 15, a central distributing pipe 16 and a second single branch distributing pipe 17, the upper end of the mutual inductance connecting pipe 12 is fixedly connected with a receiving sleeve 13, and the upper end of the receiving sleeve 13 is in interference fit with the central distributing pipe 16. The first single branch distributing pipe 15, the central distributing pipe 16 and the second single branch distributing pipe 17 are sleeved on the feeder sleeve 9, so that connection with different electric equipment is conveniently established.
Referring to fig. 2, the lower ends of the central branch line 16, the second single branch line 17, and the first single branch line 15 are electrically connected to different electrical devices, respectively, and a charge discharging ring 18 is sleeved at the connection between the central branch line 16, the second single branch line 17, and the first single branch line 15 and the electrical devices. Through the charge discharge ring 18 that cup joints at central branch pipe 16, the single branch of branch pipe 17 of second and the single branch of branch pipe 15 and consumer junction, be convenient for under the low temperature environment at the junction, when insulating nature appears changing, the resistance end discharges and consumes to reduce the electric arc discharge that the part excessive charge caused under the low temperature environment and to the destruction of solid insulation switchgear, and then promote the security under the power line operating condition.
Referring to fig. 4, a discharge arc-shaped groove is formed in the charge discharge ring 18, an elastic pressing plate clamp plate 19 is arranged in the discharge arc-shaped groove, the left end and the right end of the elastic pressing plate clamp plate 19 are fixedly connected with an elastic reset rib 21 and a heat-releasing resistance wire 20 respectively, the left end of the elastic reset rib 21 is fixedly connected with the left side wall of the discharge arc-shaped groove, the lower end of the elastic pressing plate clamp plate 19 is fixedly connected with a positive discharge electric shock 22, the inner wall of the discharge arc-shaped groove on the charge discharge ring 18 is fixedly connected with a negative discharge electric shock 23, and the positive discharge electric shock 22 is matched with the negative discharge electric shock 23. The charge discharging ring 18 is convenient for discharging and consuming at the resistor end when the connection is in a low-temperature environment and the insulativity changes, so that the damage of arc discharge caused by partial overflowing charges in the low-temperature environment to solid insulation switch equipment is reduced, and the safety of a power line in a working state is further improved.
Referring to fig. 4, the upper end of the charge discharging ring 18 is drilled with a soaking elongated slot, and the soaking elongated slot is communicated with the right sidewall of the discharging arc-shaped slot. The soaking long groove is additionally arranged on the charge discharging ring 18, so that the heat generated by the heat-releasing resistance wire 20 is conveniently conducted to the outer layer of the charge discharging ring 18.
The solid insulating material used for the feeder bushing 9 mainly includes unsaturated polyester bulk molding compound, bulk molding compound and other thermosetting insulating materials, and the main material of the bus module 7 is vacuum-cast epoxy resin and pressure-cast epoxy resin.
All inserts in the solid insulation metal closed switch cabinet 1 are subjected to full-automatic ultrasonic cleaning and APG (automatic material mixing) forming process controlled by a full-automatic material mixing system before installation, and the surface layer of the solid insulation metal closed switch cabinet 1 is subjected to full-automatic sand blasting and electric arc zinc melting to control the full-grounding treatment process of the surface of the epoxy resin insulation layer.
Referring to fig. 5, the bottom wall of the discharge arc-shaped groove at the upper end of the charge discharge ring 18 is fixedly connected with a fixed separation magnetic stripe, the lower end of the elastic pressing plate clamp plate 19 is fixedly connected with a movable separation magnetic stripe, and the magnetic poles at the sides, close to each other, of the fixed separation magnetic stripe and the movable separation magnetic stripe are the same. The fixed separation magnetic strip additionally arranged on the surface layer of the charge discharge ring 18 and the movable separation magnetic strip on the inner side of the elastic pressing sheet clamping plate 19 are convenient for enabling the elastic pressing sheet clamping plate 19 and the charge discharge ring 18 to be in a separation state under a normal state.
An electromagnetic coil is arranged in the elastic pressing sheet clamping plate 19 and is matched with the fixed separation magnetic strip. The electromagnetic coil is additionally arranged in the elastic pressing sheet clamping plate 19, so that when current passes through the elastic pressing sheet clamping plate 19, the contact between the positive electrode discharging contact 22 and the negative electrode discharging contact 23 is accelerated.
In the application process, components such as a circuit breaker, an isolating switch and the like can be integrated in the insulated metal enclosed equipment according to related industrial standards such as GB/T2900.20, DL/T593-2016 and the like, the influence of discharge on the outside in the working process of the power switch equipment is reduced, and the influence of the outside environment on the power switch equipment is reduced.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (6)
1. The utility model provides an environment-friendly solid insulation metal enclosed switchgear suitable for severe cold environment which characterized in that: including solid insulation metal closed switch cabinet (1), be equipped with power control mechanism case (2) in solid insulation metal closed switch cabinet (1), power control mechanism case (2) left end and solid insulation metal closed switch cabinet (1) inner wall fixed connection, solid insulation metal closed switch cabinet (1) left end fixed connection organic electric control panel (3), electromechanical control panel (3) and power control mechanism case (2) electric connection, power control mechanism case (2) right-hand member fixedly connected with component base plate (4), component base plate (4) are close to power control mechanism case (2) one end fixedly connected with cable wire-running pipe (5), cable wire-running pipe (5) left end and power control mechanism case (2) fixed connection, component base plate (4) right-hand member fixedly connected with three-station isolator (6), the right end of the three-station isolating switch (6) is fixedly connected with a bus module (7), the lower end of the three-station isolating switch (6) is fixedly connected with a circuit breaker (8), the right end of the circuit breaker (8) is fixedly connected with a feeder sleeve (9), a cable chamber (10) is arranged on the lower side of the element substrate (4), a work chamber partition plate (14) is arranged on the right end of the cable chamber (10), and the lower end of the feeder sleeve (9) penetrates through the work chamber partition plate (14) and is fixedly connected with the cable chamber (10); a voltage transformer (11) is arranged in the cable chamber (10), the lower end of the voltage transformer (11) is fixedly connected with the bottom end of the inner side of the solid insulation metal closed switch cabinet (1), and a mutual inductance connecting pipe (12) is fixedly connected with the right end of the voltage transformer (11); the left end of the feeder sleeve (9) is sequentially sleeved with a first single branch distributing pipe (15), a central distributing pipe (16) and a second single branch distributing pipe (17), the upper end of the mutual inductance connecting pipe (12) is fixedly connected with a bearing sleeve (13), and the upper end of the bearing sleeve (13) is in interference fit with the central distributing pipe (16); the lower ends of the central branch pipe (16), the second single branch pipe (17) and the first single branch pipe (15) are respectively and electrically connected with different electric equipment, and a charge discharging ring (18) is sleeved at the joint of the central branch pipe (16), the second single branch pipe (17) and the first single branch pipe (15) and the electric equipment; the charge discharge ring (18) is provided with a discharge arc-shaped groove, an elastic pressing plate clamping plate (19) is arranged in the discharge arc-shaped groove, the left end and the right end of the elastic pressing plate clamping plate (19) are fixedly connected with an elastic reset rib (21) and a heat release resistance wire (20) respectively, the left end of the elastic reset rib (21) is fixedly connected with the left side wall of the discharge arc-shaped groove, the lower end of the elastic pressing plate clamping plate (19) is fixedly connected with an anode discharge contact (22), the inner wall of the discharge arc-shaped groove on the charge discharge ring (18) is fixedly connected with a cathode discharge contact (23), and the anode discharge contact (22) is matched with the cathode discharge contact (23).
2. The environment-friendly solid insulated metal enclosed switchgear applicable to alpine environment according to claim 1, characterized in that: the upper end of the charge discharging ring (18) is provided with a soaking long groove which is communicated with the right side wall of the discharging arc groove.
3. The environment-friendly solid insulated metal enclosed switchgear suitable for severe cold environment according to claim 2, wherein: the solid insulating material used by the feeder bushing (9) comprises unsaturated polyester bulk molding compound and bulk molding compound thermosetting type insulating material, and the main material of the bus module (7) is vacuum casting epoxy resin and pressure casting epoxy resin.
4. The environment-friendly solid insulated metal enclosed switchgear suitable for severe cold environment according to claim 3, wherein: the APG forming process is characterized in that all inserts in the solid insulation metal closed switch cabinet (1) are subjected to full-automatic ultrasonic cleaning and full-automatic material mixing system control before installation, and the surface layer of the solid insulation metal closed switch cabinet (1) is subjected to full-automatic sand blasting and electric arc zinc melting to control the full-grounding treatment process of the surface of the epoxy resin insulation layer.
5. The environment-friendly solid insulated metal enclosed switchgear suitable for severe cold environment according to claim 4, wherein: the bottom wall of the discharge arc-shaped groove at the upper end of the charge discharge ring (18) is fixedly connected with a fixed separation magnetic strip, the lower end of the elastic pressing sheet clamping plate (19) is fixedly connected with a movable separation magnetic strip, and the fixed separation magnetic strip and the movable separation magnetic strip are the same in magnetic pole at one side close to each other.
6. The environment-friendly solid insulated metal enclosed switchgear suitable for severe cold environment according to claim 5, wherein: an electromagnetic coil is arranged in the elastic pressing sheet clamping plate (19), and the electromagnetic coil is matched with the fixed separation magnetic strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010189790.8A CN111371033B (en) | 2020-03-18 | 2020-03-18 | Environment-friendly solid insulation metal-enclosed switchgear suitable for severe cold environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010189790.8A CN111371033B (en) | 2020-03-18 | 2020-03-18 | Environment-friendly solid insulation metal-enclosed switchgear suitable for severe cold environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111371033A CN111371033A (en) | 2020-07-03 |
| CN111371033B true CN111371033B (en) | 2021-11-26 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5202480B2 (en) * | 2009-09-03 | 2013-06-05 | 株式会社東芝 | Metal closed switchgear |
| CN202068115U (en) * | 2010-07-22 | 2011-12-07 | 广西银河迪康电气有限公司 | Circuit breaker cabinet |
| CN202111407U (en) * | 2010-08-23 | 2012-01-11 | 沈阳华利能源设备制造有限公司 | Dry air insulated metal enclosed switchgear |
| CN202159922U (en) * | 2011-08-02 | 2012-03-07 | 湖南丰日电源电气股份有限公司 | Solid insulation high-temperature vacuum switch cabinet using environmentally-friendly gas |
| CN104112999B (en) * | 2014-08-02 | 2016-03-16 | 郴州市东塘电气设备有限公司 | A kind of solid insulation ring main unit |
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2020
- 2020-03-18 CN CN202010189790.8A patent/CN111371033B/en active Active
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| CN111371033A (en) | 2020-07-03 |
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Address after: 226600 No. 6 Kaiyuan Road, Haian Town, Haian, Nantong, Jiangsu. Patentee after: JIANGSU HENGXUAN ELECTRICAL Co.,Ltd. Country or region after: China Address before: 226600 No. 6 Kaiyuan Road, Haian Town, Haian, Nantong, Jiangsu. Patentee before: NANTONG SUYUAN HENGXUAN ELECTRIC Co.,Ltd. Country or region before: China |