KR101652239B1 - Gas Insulated Switchgear to be Appllied Insulation Method of Barrier Effect - Google Patents

Abstract

A switchgear of the present invention comprises: a blocking unit for receiving power to supply or block the power, and installed inside a first outer box; and a disconnection ground unit installed in a front end of the blocking unit, separating and grounding a circuit for security after removing load current in the blocking unit, and installed inside a second outer box. The blocking unit is composed of a bus-bar unit for supplying the power. Therefore, since contamination caused by an external environment is reduced, durability of an apparatus is improved to reduce the maintenance costs, danger on security for maintenance is significantly reduced, and manufacturing costs is significantly reduced compared to a phase separation bus-bar method.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a gas insulated switchgear,

The present invention relates to an opening and closing apparatus for opening and closing an electric power for safety in a place where a high voltage is used, and is provided with an insulator for sealing various devices inside the opening and closing apparatus, The present invention relates to an opening / closing apparatus employing a barrier effect insulation method which can reduce the pollution caused by an external environment by applying an insulation barrier so as to insulate the apparatus and enhance the durability of the apparatus and ensure the safety of the operator because the conductor is not directly exposed.

A circuit breaker is a device designed to open and close a circuit manually under normal circuit conditions and to automatically shut off the circuit in the event of a short circuit fault. There are kinds of oil, air, and vacuum depending on the medium of the place where the cutoff is made. It is also called according to characteristics such as high pressure, low pressure, and high speed.

A switch is a general term for a physical or electrical device to change the state of a circuit or device (ON or OFF). It is used for detection of an abnormal condition and corresponding circuit breakers and switches for simply opening and closing circuits. do.

The ignition and the heat generation due to the overcurrent are important factors in the flammable material due to the spark when the flame is opened or closed by the operation of the opening / closing device, and the following countermeasures are required.

(1) Flammable vapors and dustproof type should be used where there is danger of steam, dust, etc.

(2) Accept the switch in a nonflammable box or use a cylindrical fuse (to prevent ignited operation of the fuse from igniting the combustible).

(3) Pay attention to the cleanliness and flow rate of the insulating oil, especially to install the fireproof or non-combustible material bulkhead around it and to localize the oil flowing to the floor. Provide a lubricant on the floor below the switch.

(4) Be careful not to increase the contact resistance because of deformation of contact part, oxidation, loosening of the wiring fuse tightening screw by sufficient maintenance inspection. Repair damaged parts of knife or cover immediately.

The breakers and switches of the medium pressure are accompanied by an arc when interrupting or opening the current flowing.

In addition, the breaker and the switch of the medium pressure are provided with an inlet connection assembly through which the power is supplied for repair and inspection, and a outlet connection assembly through which the electric power passing through the breaker and the switch is drawn out to use.

The inlet connection assembly, the breaker, the switch, the breaker, the switch, and the outlet connection assembly are connected to each other by a conductor so as to be energized.

Since these conductors are exposed, there is a risk of accidents during repairs and inspections. Insulation molding methods to cover with insulating materials are used. Separate each phase to limit the interphase electromagnetic force due to large current transport. Use an isolated phase bus (IPB) using air as the medium, or use gas insulation.

There is a problem in that the problem of partial discharge due to internal bubbles and adhesion failure can not be prevented fundamentally in the insulation molding method and the temperature rise due to the effect of insulation by the thick insulating material.

The gas insulation method has a complicated structure and requires a large installation cost.

Since the phase separation bus system is more complicated in structure than the gas insulation system and requires a larger installation cost, it is used in a place where extra high voltage and large power such as a power plant are transmitted.

1. Korean Patent Publication No. 1985-0000760 (Published on Mar. 09, 1985) Circuit breaker with insulation barrier 2. Korean Registered Patent No. 10-1013585 (Registered Date: January 31, 2011) An electric distribution board having insulated busbars and insulated busbars 3. Korean Patent Publication No. 10-2015-0134478 (Disclosure date: December 02, 2015) 4. Korean Utility Model Publication No. 1987-0002569 (Announcement No .: Aug. 05, 1987) Power Switchgear 5. Korean Unexamined Patent Publication No. 10-2011-0076537 (Disclosure Date: 07/06/2011) Solid insulated vacuum circuit breaker 6. KOKAI Publication No. 10-2014-0028320 (Disclosure Date: Mar. 10, 2014) The mold cone assembly of the switchgear and the breaker

According to an aspect of the present invention, there is provided a method of inspecting an internal bubble in an insulation molding method, the method comprising: inserting an insulation barrier in a conductor exposed in an opening and closing device, It is a structure that can prevent the temperature rise due to insulation failure due to insufficient adhesion and thick insulation, and can seal various internal equipments. It can reduce pollution caused by external environment, and can be checked and repaired safely. Device.

The opening / closing device of the present invention includes a cutoff portion provided in the first enclosure to supply or cut off the power supplied from the power supply, And a breaker installed at a front end of the breaker to isolate and ground the circuit for safety after removing a load current from the breaker, and a breaker ground unit installed in the second enclosure, And supplies or cuts power to the lead-out connector assembly, which is supplied with power from the supplied lead-in contactor assembly and is drawn out of the power supply.

The busbars communicating power from the disconnected ground to the isolation and securely connecting the compartment of the first enclosure to the enclosure of the second enclosure; An outgoing ground conductor leading from the disconnecting ground to the power source; And a blocking portion incoming conductor for transmitting power from the spacer to the blocking portion.

In order to ensure safety through insulation with the outside, an external insulation barrier is provided outside the blocking portion inlet conductor, which is a pipe-shaped blocking portion which prevents the operator or other objects from coming into direct contact with each other.

One end of the cut-off portion lead-in conductor is coupled, and a lead-in insulator mold is formed at a certain portion of the cut-off portion into which power is supplied to the cut-off portion.

An insulating barrier inserting groove is formed in the lead insulator mold. The insulating barrier inserting groove is formed by inserting one end of the insulating barriers.

The cut-off portion includes a cut-out portion lead-out conductor through which electric power is drawn out. The cut-out portion lead-out conductor is provided with a pipe-shaped cut-out portion for preventing workers or other objects from coming into direct contact with the outside, An insulation barrier is provided, and one end of the breaker portion lead-out conductor is coupled to form a lead-out insulator mold at a certain portion of the breaker, from which the power is drawn out from the breaker portion, and one end of the breaker- An insulating barrier inserting groove is formed at the other end of the breaker portion leading conductor, and an insulating barrier inserting groove is formed in the lead conductor insulator mold to insert the other end of the insulating barriers, .

Wherein the spacer is made of a non-conductive non-conductive material, and is capable of safely connecting the first enclosure and the second enclosure to each other and transmitting power; One end of the disconnecting portion lead-out conductor is coupled to one end of the disconnecting portion lead-in conductor and the other end of the break-off portion lead-in conductor is connected to the casing portion to transmit power from the disconnecting- And a con- ceptor portion made up of a plurality of conductors.

The casing unit is symmetrical in the left and right direction. The casing unit is formed at the center and is formed between the first and second enclosures and connects the compartments on both sides. Protruding guard portions protruding at a predetermined width from both side edges of the body plate portion to prevent the contactor from being exposed; And a contactor mounting portion formed at a central portion of the body plate portion, the contactor being inserted into the contact hole, the insulating barrier being inserted into the contact hole,

The cut-off portion lead-in conductor is a circular bar-shaped conductor body which conducts electricity. And a connection pin formed at one end of the conductor body to connect the spacer and the conductor body.

Wherein the disconnecting-portion-outgoing conductor comprises a circular bar-shaped conductor body for energizing electricity; And a connection pin formed at one end of the conductor body to connect the spacer and the conductor body.

The connector includes a connector main body to which power is transmitted from the disconnected-portion grounding portion to the blocking-portion-inducting conductor, the disconnecting-portion-outgoing conductor being inserted into one end of the connector and the blocking portion- And a plurality of guide pins coupled to the inside of the opposite ends of the contactor body to guide the breaker inlet conductors and the disconnecting conductor outgoing conductors so that they can be brought into contact with each other.

The above-described opening and closing apparatus can solve the problem to be solved by the present invention.

According to the opening and closing apparatus to which the barrier effect insulation method of the present invention is applied, since the thickness of the insulating barrier is thin, there is no rise in the temperature of the conductor due to the heat insulating effect of the thick insulating material and the problem of the partial discharge due to the internal bubble and the adhesion failure is fundamentally prevented It is a structure in which various internal equipments are sealed by an insulation barrier. It reduces pollution caused by external environment and improves the durability of the device. Therefore, the maintenance cost is reduced and the risk of safety during inspection and maintenance is remarkably reduced. There is an advantage that production cost is remarkably lower than the method.

1 is an overall conceptual view of an opening and closing apparatus to which a barrier effect insulating method of the present invention is applied
FIG. 2 is a perspective view illustrating an opening / closing apparatus to which a barrier effect isolation method of the present invention,
Fig. 3 is a perspective view of an insulating barrier according to the opening and closing apparatus to which the barrier effect insulating method of the present invention is applied.
Fig. 4 is a perspective view of the entire spacer according to the opening and closing apparatus to which the barrier effect insulation method of the present invention is applied
5 is an exploded perspective view of the entire spacer according to the opening and closing apparatus to which the barrier effect insulating method of the present invention is applied.
Fig. 6 is a schematic view of the entire spacer according to the opening and closing apparatus to which the barrier effect insulation method of the present invention is applied
7 is a perspective view of a casing portion of a spacer according to an opening / closing apparatus to which the barrier effect insulation method of the present invention is applied.
8 is a schematic view of a casing of a spacer according to an opening / closing apparatus to which the barrier effect insulation method of the present invention is applied
9 is a perspective view of a spacer assembly according to an embodiment of the present invention,
10 is an exploded perspective view of a spacer of a spacer according to an opening and closing apparatus to which the barrier effect insulating method of the present invention is applied.
FIG. 11 is a perspective view of a main body of a spacer of a spacer according to an opening / closing apparatus to which the barrier effect isolation method of the present invention is applied.
Fig. 12 is a perspective view showing an assembled perspective view of the breaker inlet conductor and the breaker grounding conductor according to the opening / closing device to which the barrier effect insulation method of the present invention is applied
Fig. 13 is an exploded perspective view of the breaker inlet conductor and the breaker outlet conductor according to the opening / closing device to which the barrier effect insulation method of the present invention is applied
Fig. 14 is a perspective view of a conductor body of a breaker-portion lead-in conductor and a break-away portion lead-out conductor according to an opening / closing apparatus to which the barrier-
15 is a perspective view illustrating a connection pin assembling view of a breaker inlet conductor and a breaker grounding conductor according to an opening / closing device employing the barrier effect insulation method of the present invention.
Fig. 16 is an exploded perspective view of a connection pin of a breaking-in portion conductor and a breaker-portion lead-out conductor according to the opening / closing device to which the barrier-
17 is a view for explaining a method of connecting a grounding-portion lead-out conductor or a shielding portion lead-in conductor to a spacer according to the opening / closing device to which the barrier-

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The following definitions are defined in consideration of the functions of the present invention, and this may vary depending on the intention or custom of the user, the operator, and the like, and the definition is based on the "opening / It should be understood that the present invention is not limited thereto.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a preferred embodiment of a "opening and closing apparatus using a barrier effect isolation method" according to the present invention will be described in detail.

The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

FIG. 1 is an overall conceptual view of an opening and closing apparatus to which a barrier effect insulating method of the present invention is applied, FIG. 2 is an opening and closing apparatus applying a barrier effect insulating method of the present invention, FIG. 4 is a perspective view of an entirety of a spacer according to an opening and closing apparatus to which the barrier effect insulating method of the present invention is applied, and FIG. 5 is a perspective view of an opening and closing apparatus using the barrier effect insulating method of the present invention. 7 is a perspective view of a casing of a spacer according to an opening and closing apparatus to which the barrier effect insulating method of the present invention is applied, and FIG. 7 is a perspective view of a casing of a spacer according to an embodiment of the barrier effect insulating method of the present invention, FIG. 8 is a schematic view of a casing of a spacer according to an opening / closing apparatus to which the barrier effect insulation method of the present invention is applied, and FIG. 10 is an exploded perspective view of a spacer of a spacer according to an opening and closing apparatus to which the barrier effect insulating method of the present invention is applied, and FIG. 11 is a perspective view of a barrier effect insulating FIG. 12 is a perspective view showing a breaker inlet conductor and a breaker grounding conductor according to an opening and closing apparatus to which the barrier effect insulation method of the present invention is applied. FIG. FIG. 14 is an exploded perspective view of the breaker inlet conductor and the breaker outlet conductor according to the opening / closing device using the barrier effect isolation method of FIG. Fig. 15 is a perspective view of a conductor body of a conductor according to an embodiment of the present invention. Fig. 16 is an exploded perspective view of a connection pin of a breaker inlet conductor and a breaker grounding conductor according to an opening and closing device using the barrier effect insulation method of the present invention. FIG. 8 is an explanatory view of a connection method between a grounding-out conductor or a shielding-portion inserting conductor and a spacer according to an opening / closing device using a barrier effect insulation method.

As shown in FIG. 1, the opening / closing device B of the present invention includes a cutoff portion 1 provided in the first enclosure 11 to supply or cut off power supplied from the power supply, And a disconnected grounding part 21 installed at the front end of the blocking part 1 to isolate and ground the circuit for safety after removing the load current from the blocking part 1 and installed in the second enclosure 211 And a bus bar (2) for supplying power to the cut-off part (1).

The opening and closing apparatus B supplies or cuts off power to the drawer connector assembly 4, which is supplied with power from the lead-in connector assembly 3 to which power is supplied and is drawn out of the power source.

The bus bar 2 transmits power from the disconnecting unit 21 to the breaker unit 1 and includes a spacer 22 for securely connecting the first enclosure 11 to the second enclosure 211 )Wow; An unloading portion lead-out conductor (23) for transmitting power from the disconnecting ground portion (21) to the spacer (22); And a cut-off portion lead-in conductor (24) for transmitting power from the spacer (22) to the cut-off portion (1).

The busbars 2 are connected to the disconnecting unit inlet conductor 25 receiving power from the connecting connector assembly 3 and a disconnecting grounding unit 25 for safely connecting the compartment of the inlet connector assembly enclosure of the second enclosure 211, The inlet side spacer 26 may be included.

In order to ensure safety through insulation from the outside, a disconnected-pipe insulation barrier 251 of a pipe-shaped disconnecting-pole portion is installed on the outside of the disconnecting-pole-portion lead-in conductor 25 so as not to come into direct contact with an operator or other objects.

The break grounding part 21 is formed with an insulation bridge 212 of a break grounding part so that the break grounding part inlet conductor insulation barrier 251 and the isolation barrier part 233 can be inserted.

In order to ensure safety through insulation from the outside, an isolation barrier 243, which is a pipe-shaped blocking part, is provided to prevent the operator or other objects from coming into direct contact with the outside of the blocking part lead-in conductor 24.

One end of the cut-off portion lead-in conductor 24 is coupled and a lead-in insulator mold 121 is formed at a certain portion of the cut-off portion 1 into which the power is inputted into the cut-

An insulating barrier inserting groove 1211 into which one end of the insulating barrier 243 is inserted is formed in the lead insulator mold 121.

The cut-off portion (1) includes a cut-off portion leading conductor (13) from which power is drawn.

In order to ensure safety through insulation with the outside, an isolation barrier 131 is provided at the outer side of the blocking part leading conductor 13 so as to prevent the operator or other objects from coming into direct contact with the blocking part.

One end of the cut-off portion leading conductor 13 is coupled and a lead-out insulator mold 122 is formed at a certain portion of the cut-off portion 1 from which power is drawn from the cut-off portion 1.

An insulation barrier insertion groove 1221 into which one end of the isolation barrier 131 is inserted is formed in the extraction insulation material mold 122.

The outgoing conductor insulator mold 14 is formed at the other end of the cutout portion leading conductor 13.

The lead conductor insulator mold 14 is formed with an insulation barrier insertion groove 141 into which the other end of the isolation barrier 131 is inserted.

Insulation molds such as the lead-in insulator mold 121, the lead-out insulator mold 122, the lead-out conductor insulator mold 14 and the break-away portion insulator mold 212 must have insulating properties that can withstand the operating voltage, (FRP) or polycarbonate (PC), and the material of the insulating mold is not limited to the present invention.

The isolation barrier 251, the isolation barrier 233, the isolation barrier 243 and the barrier isolation barrier 131 have insulation characteristics that can withstand the operating voltage. And must be able to be made into a pipe shape.

2 is an exemplary view of an opening and closing apparatus to which a barrier effect insulating method according to the present invention is applied in which the bus bar 2 having a disconnecting ground portion 21 including a switch is connected to a plurality of bus lines, Is used.

3 is a perspective view of the isolation barrier 243, the insulation barrier 233, and the insulation barrier 251, which are connected to the isolation barrier, in order to ensure safety through insulation from the outside. It is in the shape of a pipe to prevent contact.

The isolation insulating barriers 243, the isolation barrier 233 and the isolation barrier 251 are required to have insulation characteristics that can withstand the operating voltage and be manufactured in a pipe shape , FRP (Fiber Reinforced Plastics), or PC (Polycarbonate).

As shown in FIGS. 4 to 6, the spacer 22 transfers power from the disconnecting ground portion 21 to the blocking portion 1, and the first enclosure 11 and the second enclosure 211 ) Of the vehicle.

The spacer 22 is made of a non-conductive non-conductive material and has a casing part 221 for safely connecting the first enclosure 11 and the second enclosure 211 to each other and transmitting power thereto; One end of the disconnecting-portion-outgoing conductor 23 is coupled to one side of the casing portion 221 and one end of the blocking-portion-inducting conductor 24 is coupled to the other side of the disconnecting- And a conductor portion 222 made up of three conductors 2221 for transmitting the current to the cut-off portion lead-in conductor 24.

The spacer 22 receives power from one side in a symmetrical manner to transmit power to the other side, and connects the compartment safely.

As shown in FIGS. 7 and 8, the casing unit 221 is made of a non-conductive non-conductive material, and can securely connect the compartment between the first enclosure 11 and the second enclosure 211, I will.

The casing unit 221 has a symmetrical shape and includes a body plate part 2211 formed at the center and formed between the first enclosure 11 and the second enclosure 211 to connect the compartments on both sides thereof; Protruding guard portions 2212 protruding at both side edges of the body plate portion 2211 by a predetermined width to prevent the cover 2221 from being exposed;

And a contactor mounting portion 2213 formed at a central portion of the body plate portion 2211 to insert the contactor 2221 and insulate walls 233 and 243 to be inserted thereinto, .

The body plate portion 2211 is formed with a plurality of bolt holes 22111 formed with tabs for coupling the first enclosure 11 and the second enclosure 211 to each other.

Each of the above-described con- carder installation portions 2213 includes a cylindrical con- coder insertion port 22131 into which the above-mentioned con- deller 2221 is inserted; An insulating barrier inserting opening 22132 is formed at the outer side of the concierge inserting opening 22131 so as to have two cylindrical shapes with a certain distance therebetween and into which the insulating barriers 233 and 243 are inserted.

As shown in Figs. 9 to 11, the conductor 2221 is inserted into the casing portion 221, one end of the disconnecting-portion-outgoing conductor 23 is coupled to one side, One end of the sub-lead conductor 24 is connected to the power source, and the power is transmitted from the end ground portion 21 to the cut-off portion lead-in conductor 24.

The cutter grounding conductor 21 is connected to the cutter grounding conductor 21 through the cutter grounding conductor 21 and the cutter grounding conductor 21 is inserted into the conductor 2221 from the cutter grounding conductor 21, A conductor body 22211 for transmitting power to the conductor 24; And a plurality of guide pins 22212 which are respectively coupled to both ends of the cover body 22211 to guide the breaker inlet conductor 24 and the disconnecting conductor outgoing conductor 23 to be drawn in and brought into contact with each other do.

The conductor main body 22211 has two conductor insertion grooves 222111 at one end thereof and one end of the disconnecting conductor lead-out conductor 23 at the other end thereof. A guide pin mounting hole 222112 having the same number of the guide pins 22212 as the number of the guide pins 22212 and a body plate mounting groove 222113 having the body plate portion 2211 are formed .

As shown in FIGS. 12 and 13, the disconnecting-portion-outgoing conductor 23 transfers power from the disconnecting ground 21 to the spacer 22.

The cut-off portion lead-in conductor 24 transfers power from the spacer 22 to the cut-off portion 1.

The cut-off portion lead-in conductor 24 includes a circular bar-shaped conductor body 241 for energizing electricity; And a connection pin 242 formed at one end of the conductor body 241 and coupling the spacer 22 to the conductor body 241.

The disconnecting-portion-outgoing conductor (23) conducts electricity and includes a circular bar-shaped conductor body (231); And a connection pin 232 formed at one end of the conductor body 241 and coupling the spacer 22 and the conductor body 231.

As shown in Fig. 14, the conductor bodies 231 and 241 are energized and have a circular bar shape.

The conductor body 231 includes a connection pin coupling hole 2311 to which the connection pin 232 is coupled; The anti-rotation pin insertion hole 2312 into which the rotation prevention pin 2326 is inserted is formed.

The conductor body 241 has a connection pin coupling hole 2411 to which the connection pin 242 is coupled; And the prevention pin insertion hole 2412 into which the rotation prevention pin 2426 is inserted is formed.

As shown in FIGS. 15 and 16, the connection pin 242 includes a connection shaft 2421 for energizing the blocking portion inlet conductor 24 from the spacer 22; The fixing pin 2422 exposed at the conductor body 241 is formed at one end of the connection shaft 2421 and is coupled to the spacer 22 to fix the spacer 22 and the blocking portion inlet conductor 24. and; A rotation preventing and fixing guide 2423 formed at the other end of the connection shaft 2421 to prevent the rotation of the conductor body 241 and to fix the conductor body 241 with the rotation preventing and fixing guide 2423; A pin cover 2424 formed on the connection shaft 2421 between the fixing pin 2422 and the rotation preventing and fixing guide 2423 and fitted to the end of the conductor body 241; A spring 2425 formed between the pin cover 2424 and the rotation preventing and securing guide 2423 to urge the fixing pin 2422 against elasticity of the spring so as to engage with the spacer 22 without a clearance; And a rotation prevention pin 2426 that is inserted into the rotation prevention and fixing guide 2423 and the conductor body 241 so that the connection pin 242 does not move in the conductor body 241.

The connection shaft 2421 is formed with a guide coupling bolt hole 24211 for fixing the rotation preventing and fixing guide 2423 to the connection shaft 2421 with a bolt for fixing the rotation preventing and fixing guide 2423 in a non-moving manner.

The fixing pin 2422 is formed with a plurality of guide grooves 24221 through which the guide pins 22212 of the spacer 22 are guided.

The connection pin 232 includes a connection shaft 2321 for supplying electric current to the spacer 22 from the disconnecting-portion-side inlet conductor 23; The connection pin 2321 is formed at one end of the connection shaft 2321 and is coupled with the spacer 22 to fix the spacer 22 and the disconnected-portion receiving conductor 23. The fixing pin 2322 exposed at the conductor body 231 )and; A rotation preventing and fixing guide 2323 formed at the other end of the connection shaft 2321 to prevent the rotation of the conductor body 231 and to be fixed to the conductor body 231; A pin cover 2324 formed on the connection shaft 2321 between the fixing pin 2322 and the rotation preventing and fixing guide 2323 and fitted to the end of the conductor body 231; A spring 2325 formed between the pin cover 2324 and the rotation preventing and securing guide 2323 to urge the fixing pin 2322 against the spacer 22 with no elastic clearance; And a rotation preventing pin 2326 that is inserted into the rotation preventing and fixing guide 2323 and the conductor body 231 to prevent the connection pin 232 from moving in the conductor body 231.

The connection shaft 2321 is formed with a guide coupling bolt hole 23211 for fixing the rotation preventing and fixing guide 2323 to the connection shaft 2321 with a bolt for fixing the rotation preventing and fixing guide 2323 in a non-moving manner.

The fixing pin 2322 is formed with a plurality of guide grooves 23221 through which the guide pins 22212 of the spacer 22 are guided.

17, the connecting method of the disconnecting portion lead conductor 23 or the blocking portion inserting conductor 24 and the spacer 22 is the same as the method of connecting the spacer 22 to the conductor 2221 of the spacer 22, Touch connection method in which the conductor 23 or the connection pin 232 or 242 of the cut-off portion lead-in conductor 24 is inserted and then rotated without being disconnected.

According to the opening and closing apparatus to which the barrier effect insulation method of the present invention is applied, since the thickness of the insulating barrier is thin, there is no rise in the temperature of the conductor due to the heat insulating effect of the thick insulating material and the problem of the partial discharge due to the internal bubble and the adhesion failure is fundamentally prevented It is a structure in which various internal equipments are sealed by an insulation barrier. It reduces pollution caused by external environment and improves the durability of the device. Therefore, the maintenance cost is reduced and the risk of safety during inspection and maintenance is remarkably reduced. There is an advantage that production cost is remarkably lower than the method.

A: Total drainage B: Switchgear
1: blocking part 11: first enclosure
12: Breaking section body 121: Inlet insulation material mold
1211: insulation barrier insertion groove 122: withdrawal insulation mold
1221: Insulation barrier insertion groove 13: Breaking-out conductor
131: Insulating barrier insulating barrier 14: Leading conductor insulator mold
141: Insulation barrier insertion groove
2: bus line portion 21: disconnecting ground portion
211: Second enclosure 212: Disconnection ground Insulation material mold
22: Spacer
221: casing part 2211: body plate part
22111: bolt hole 2212: protruding guard part
2213: Condenser installation part 22131: Condenser insertion port
22132: Insulation barrier inserting port 222:
2221: Conductor 22211: Conductor body
222111: Conductor insertion groove 222112: Guide pin installation hole
222113: Body plate mounting groove 22212: Guide pin
23: Disconnection grounding conductor 231: Conductor body
2311: Connection pin fitting hole 2312: Prevention pin insertion hole
232: connecting pin 2321: connecting shaft
23211: Guide coupling bolt hole 2322: Fixing pin
23221: Guide groove 2323: Anti-rotation and fixing guide
23231: Coupling bolt hole 23232: Fixing guide coupling bolt
2324: pin cover 2325: spring
2326: Anti-rotation pin 233: Disconnection Earthing insulation barriers
24: cut-off portion lead-in conductor 241: conductor body
2411: Connection pin fitting hole 2412: Prevention pin insertion hole
242: connecting pin 2421: connecting axis
24211: Guide coupling bolt hole 2422: Fixing pin
24221: Guide groove 2423: Anti-rotation and fixing guide
24231: Coupling bolt hole 24232: Fixing guide coupling bolt
2424: pin cover 2425: spring
2426: anti-rotation pin 243: blocking part
25: Disconnection Ground Inlet conductor 251: Disconnection ground Inlet conductor Insulation barrier
26: Disconnection grounding part Incoming spacer
3: Input connector assembly
4: Drawer connector assembly

Claims (5)

(1) provided in the first enclosure (11) to supply or cut off the power supplied from the power supply;
And a disconnected grounding part 21 installed at the front end of the blocking part 1 to isolate and ground the circuit for safety after removing the load current from the blocking part 1 and installed in the second enclosure 211 And a bus bar (2) for supplying power to the cut-off part (1)
An opening / closing device (B) for supplying or shutting off power to a lead-out connector assembly (4), which is supplied with power from a lead-in connector assembly (3)
The bus bar 2 transmits power from the disconnecting unit 21 to the breaker unit 1 and includes a spacer 22 for securely connecting the first enclosure 11 to the second enclosure 211 )Wow;
An unloading portion lead-out conductor (23) for transmitting power from the disconnecting ground portion (21) to the spacer (22);
(24) for transmitting power from the spacer (22) to the blocking portion (1)
In order to ensure safety through insulation from the outside, an external insulation barrier 243, which is a pipe-shaped blocking part, is provided to prevent the operator or other objects from coming into direct contact with the exterior of the blocking part inlet conductor 24,
One end of the cut-off portion lead-in conductor 24 is coupled to form a lead-in insulator mold 121 at a predetermined portion of the cut-off portion 1 into which power is supplied to the cut-
The cut-off portion (1) includes a cut-off portion leading conductor (13) from which power is drawn,
In order to ensure safety through insulation with the outside, an isolation barrier (131) of a pipe-shaped shielding part which prevents direct contact of an operator or other objects is provided outside the shielding part leading conductor (13)
One end of the cut-off portion leading conductor 13 is coupled and a lead-out insulator mold 122 is formed at a predetermined portion of the cut-off portion 1 from which the power is drawn from the cut-off portion 1,
The outgoing conductor insulator mold 14 is formed at the other end of the breaking portion leading conductor 13,
The spacer 22 is made of a nonconductive material and has a casing part 221 connecting the first enclosure 11 and the second enclosure 211 to each other and transmitting power thereto;
One end of the disconnecting-portion-outgoing conductor 23 is coupled to one side of the casing portion 221 and one end of the blocking-portion-inducting conductor 24 is coupled to the other side of the disconnecting- And a conductor portion 222 made up of three conductors 2221 for transmitting the signal to the cut-off portion lead-in conductor 24,
The cutter grounding conductor 21 is connected to the cutter grounding conductor 21 through the cutter grounding conductor 21 and the cutter grounding conductor 21 is inserted into the conductor 2221 from the cutter grounding conductor 21, A conductor body 22211 for transmitting power to the conductor 24;
And a plurality of guide pins 22212 which are respectively coupled to both ends of the cover body 22211 to guide the breaker inlet conductor 24 and the disconnecting conductor outgoing conductor 23 to be drawn in and brought into contact with each other And,
The conductor main body 22211 has two conductor insertion grooves 222111 at one end thereof and one end of the disconnecting conductor lead-out conductor 23 at the other end thereof. A guide pin mounting hole 222112 having the same number of the guide pins 22212 as the number of the guide pins 22212 and a body plate mounting groove 222113 having a body plate portion 2211 are formed Opening / closing device with barrier effect insulation
delete The method according to claim 1,
An insulation barrier insertion groove 1211 into which one end of the insulation barrier 243 is inserted is formed in the insulation insulation mold 121,
An insulating barrier inserting groove 1221 into which one end of the blocking insulating barrier 131 is inserted is formed in the drawing insulating material mold 122,
And an insulation barrier insertion groove (141) into which the other end of the isolation barrier (131) is inserted is formed in the lead conductor insulation material mold (14)
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