WO2016031327A1 - 高速投入器およびこれを備えたスイッチギヤ - Google Patents
高速投入器およびこれを備えたスイッチギヤ Download PDFInfo
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- WO2016031327A1 WO2016031327A1 PCT/JP2015/065077 JP2015065077W WO2016031327A1 WO 2016031327 A1 WO2016031327 A1 WO 2016031327A1 JP 2015065077 W JP2015065077 W JP 2015065077W WO 2016031327 A1 WO2016031327 A1 WO 2016031327A1
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- contact
- movable contact
- movable
- input device
- fixed contact
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
- H01H39/004—Closing switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H79/00—Protective switches in which excess current causes the closing of contacts, e.g. for short-circuiting the apparatus to be protected
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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
- H02B1/16—Earthing arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
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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
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
Definitions
- the present invention promptly grounds the electric circuit in which the accident has occurred and allows the accident current to flow to the ground, or between the electric circuits in which the accident has occurred.
- the present invention relates to a high-speed input device that can be short-circuited at high speed to bypass an accident current.
- the power distribution system is an equipment system that is indispensable as a social infrastructure for power supply and demand such as buildings and factories, and requires extremely high safety and reliability. Therefore, processes that fully consider safety and reliability are used throughout the manufacturing stage, installation work, and operation and maintenance. However, very rarely, unexpected insulation of small animals and foreign objects, deterioration of insulation due to long-term use, or damage to equipment caused by a huge earthquake that exceeds expectations, etc., impairs the insulation function of electric circuits, causing accidents such as ground faults and short circuits. May occur.
- a large current arc is generated and a plasma state of 10,000 to 20000 ° C. is generated in the vicinity of the arc, so that the surrounding metal and insulator are partially vaporized.
- Insulating gas such as air near the arc instantaneously becomes high temperature and expands, and the inside of the apparatus becomes very high pressure.
- switchgears and the like are provided with a pressure relief device, and the thermally expanded high-pressure insulating gas is released to the outside of the device together with the vaporized metal gas and the insulator decomposition gas in about 10 milliseconds. Prevent gear breakage. However, when the failure continues, a large current arc is continuously generated, and the damage in the vicinity of the arc in the apparatus becomes large.
- ⁇ Eliminating electrical faults in such a power distribution system is performed using a power circuit breaker provided to protect the circuit.
- the circuit breaker for electric power requires about 100 milliseconds or more until the arc of the switchgear is removed by detecting the failure and then disconnecting the electric circuit that has failed due to the operation of the circuit breaker.
- the power receiving / distributing system is greatly damaged, and it is expected that the apparatus causing the failure will be damaged so that it cannot be reused.
- one contact is formed between the phases of the electric circuit or between the electrodes connecting the electric circuit and the ground.
- it is necessary to secure a space of an insulation distance or more between the contact of the movable contact and the fixed contact terminal so that no discharge or the like occurs, and it is necessary to widen the distance between the electrodes. If a large space is secured between the electrodes, the moving distance of the movable contact for connecting the electrodes becomes long, and the time until the short-circuit is put in becomes long.
- the high-speed input device described in Patent Literature 1 and Non-Patent Literature 1 forms a single contact between the phases of the electric circuit or between the electrodes connecting the electric circuit and the ground.
- the distance between the contact of the movable contact and the contact of the fixed contact corresponds to the total voltage between the electrodes, and it is necessary to ensure an insulation distance that does not cause discharge or the like. If the contact of the movable contact and the contact of the fixed contact are installed in a vacuum, this insulation distance can be shortened compared to the air etc., but if the voltage applied between the electrodes is high, It is necessary to secure a long distance.
- Patent Document 2 describes an example of forming two contact points between phases of an electric circuit or between electrodes connecting an electric circuit and the ground.
- the insulation distance that is the distance between the contact of the movable contact and the contact of the fixed contact constituting each contact can be shortened, so The moving distance of the contact can be shortened.
- the movable contactor opens and closes the electrodes in accordance with the mechanical closing operation, and a sufficient speed cannot be ensured, and both movable contactors start the closing operation. There was a problem that it was difficult to shorten the time until the short-circuiting.
- the high-speed input device of the present invention includes a first fixed contact made of a conductive material, a second fixed contact made of a conductive material and disposed opposite to the first fixed contact, and a tip portion. Is made of a conductive material and has a hollow hole that is open on the opposite side of the tip, and is placed at an insulation distance or more away from the first fixed contact and the second fixed contact before charging. Later, a movable contact that inserts a tip portion between the first fixed contact and the second fixed contact to electrically connect the first fixed contact and the second fixed contact. And a child.
- the high-speed charging device of the present invention is made of a hollow cylindrical conductive material, and is made of a first movable contact having an opening at one end and a closing portion at the other end, and a hollow cylindrical conductive material.
- a second movable contact having an opening at one end and a closing portion at the other end, and the opening of the second movable contact is nested in the opening of the first movable contact
- a movable contact assembly inserted so as to form a structure, a first fixed contact made of a conductive material and opposed to the closed portion of the first movable contact at a fixed interval during non-operation; and A second fixed contact facing the closed portion of the second movable contact with a predetermined interval, and a gas generating unit installed in a hollow portion formed inside the movable contact combined body It is.
- the high-speed input device of the present invention has two contacts in series, so that the insulation distance between the contact of the movable contact and the contact of the fixed contact can be shortened.
- the distance can be shortened, and further, the operation and contact are made by the pressure change caused by the gas generating part installed in the hollow part of the two movable contacts. It can be carried out.
- FIG. 5 is a YY sectional view of the high-speed input device shown in FIG. 4.
- FIG. ⁇ Structure of high-speed feeder> The structure of the high speed input device of the present embodiment will be described with reference to FIGS.
- the high-speed input device shown in this embodiment is one in which one movable contact operates between two fixed contacts to input a circuit
- FIG. 1 shows a high-speed input according to Embodiment 1 of the present invention. It is sectional drawing of a container.
- FIG. 2 is a plan view of the high-speed input device according to Embodiment 1 of the present invention.
- the vacuum vessel 1 is externally formed by an insulating portion 1a made of ceramic or the like and a metal case 1b that constitutes a part of the vacuum vessel 1 and is formed of a stainless steel material. Further, a metal plate 1c is used for a portion where the first stationary contact 2 is vacuum-tightly joined to the vacuum vessel 1 by brazing or the like, and a metal plate 1d is used for a portion where the second stationary contact 3 is similarly vacuum-tightly joined. ing.
- the metal case 1b includes a partition frame 1e that is vacuum-tightly joined and a flange 1f that is fixed to the metal case 1b.
- the first fixed contact 2 is made of a conductive material such as copper, and can conduct a current of several tens of kiloamperes for several seconds, for example.
- the first fixed contact 2 is provided with a fastening screw hole 2a for connecting to the system electric circuit.
- the second fixed contact 3 is also made of copper like the first fixed contact 2, and is formed with a screw hole 3a for fastening for connecting to the system electric circuit.
- the movable contact 4 has a charging contact portion 4a at the tip portion for bringing the first fixed contact 2 and the second fixed contact 3 into contact with each other in a bridging manner. Furthermore, a sliding part 4b of the movable contact 4 and an insulating part 4c for connecting the closing contact part 4a and the sliding part 4b are provided, and the movement of the movable contact 4 is assisted inside the sliding part 4b. A sliding guide portion 4d is formed. A fixed guide portion 1g formed on the flange 1f is inserted into the sliding guide portion 4d to assist the movement of the movable contact 4.
- the cylindrical outer surface of the sliding portion 4b of the movable contact 4 is vacuum-tightly fixed to the diaphragm 5, and the outer periphery of the diaphragm 5 is vacuum-tightly fixed to the partition frame 1e formed on the vacuum vessel 1. Therefore, in FIG. 1, the left side of the diaphragm 5 of the vacuum vessel 1 is a vacuum portion, the right side is an air chamber, and the outside air is connected at the joint portion between the metal case portion 1b and the flange 1f of the vacuum vessel 1 or the flange 1f. There is ventilation.
- the insulating portion 4 c It has insulation so as not to divert through the input contact portion 4b.
- the movable contact 4 is attached so that the sliding guide portion 4d is placed on the fixed guide portion 1g formed on the flange 1f. Between this fixed guide part 1g, the gas generating part 7 and the detonator 8 of the gas generating part 7 are attached.
- the gas generating unit 7 is a device that generates high-pressure gas by a chemical reaction such as explosive, and the detonator 8 corresponds to an ignition device when explosive is used for the gas generating unit 7.
- a signal transmission means such as an optical fiber 9 for transmitting an initiation signal is connected to the initiation device 8, and the connector 10 is fixed to the mounting base 6.
- the mounting base 6 is fixed to the flange 1f by a fastening part 11, and further, a fastening screw hole 6a is formed in the mounting base 6, and the high-speed input device is fixed to a device such as a switch gear using the fastening screw hole 6a. ing.
- FIG. 2 is a plan view of the high-speed charging device according to the present embodiment shown in FIG. 1, and shows the arrangement of the insulating portion 1a, the metal case portion 1b, the metal plate 1c, and the first fixed contact 2 of the vacuum vessel 1. ing.
- the metal plate 1c is used for facilitating the work when the first fixed contact 2 is vacuum-tightly joined to the vacuum vessel 1 by brazing or the like.
- the first stationary contact 2 may be directly attached to the vacuum vessel 1 without using 1c.
- the metal plate 1d is used for the back surface of the metal plate 1c of the vacuum vessel 1, and it is not necessary to use it if there is no problem in the process as with the metal plate 1c.
- FIG. 1 is used to explain the structure of the high-speed input device
- FIG. 3 is an explanatory diagram showing the direction of electromagnetic force immediately before the contact between the movable contact 4 and the first and second fixed contacts 2 and 3 of the high-speed input device according to the present embodiment.
- FIG. 5 is a cross-sectional view of the high-speed input device according to the embodiment after input, and FIG.
- the first fixed contact 2 is connected to a one-phase electric circuit
- the second fixed contact 3 is connected to another-phase electric circuit.
- the movable contact 4 is held at a position corresponding to the diaphragm 5 apart from the first fixed contact 2 and the second fixed contact 3 by a distance that ensures insulation, in a state before being thrown in.
- a signal is transmitted from an accident detection device (not shown) by means of transmission means such as an optical fiber 9, and the detonator 8 is activated via the connector 10 and the optical fiber 9,
- the gas generator 7 is activated.
- the high pressure gas generated from the gas generator 7 fills the space in the movable contact 4, and the sliding guide portion 4 d of the movable contact 4 extends along the fixed guide portion 1 g formed on the flange portion 1 f of the vacuum vessel 1.
- the movable contact 4 is pushed out to the left in the figure.
- the diaphragm 5 is deformed as the movable contact 4 is moved, and when the deformation exceeds a certain value and passes through the dead point, the diaphragm 5 is reversed, and the stress accumulated by the deformation is rapidly dissipated.
- the movable contact 4 is driven at a high speed due to the influence of the diverging stress due to the inversion of the diaphragm 5 in addition to the initial acceleration drive by the generation of the high-pressure gas in the gas generator 7.
- the movable contact 4 is close to the first fixed contact 2 and the second fixed contact 3, and a current I flows immediately before the contact. There is a pre-arc in the gap between the first fixed contact 2 and the closing contact 4 a of the movable contact 4 and the gap between the closing contact 4 a of the movable contact 4 and the second fixed contact 3.
- the current Ia flows, the electromagnetic force F gives an accelerating action to the movable contact 4, and the charging speed is further increased.
- the diaphragm 5 used here can cause inversion with a small amount of energy by using a configuration in which steps are formed concentrically as shown in FIG. 1 or a configuration in which concentric thin portions are provided. It is possible to shorten the charging time of the movable contact 4.
- FIG. 4 the movable contact 4 reaches between the first fixed contact 2 and the second fixed contact 3, and the first fixed contact 2 and the second fixed contact 3 move.
- the state where it was electrically connected in the bridge shape via the insertion contact part 4a of the child 4 is shown. Therefore, the diaphragm 5 shown in FIG. 4 shows a state where the diaphragm 5 is reversed by the movement of the movable contact 4.
- FIG. 5 is an arrow view of the YY section of FIG. 4, and the first fixed contact 2 and the second fixed contact 3 are connected via the input contact portion 4a when observed from the Y direction. This shows the state of electrical connection.
- the distance between the first fixed contact 2 and the second fixed contact 3 (insulation distance between the circuit poles) is the bottom of an isosceles triangle, between the first fixed contact 2 and the movable contact 4 and the first
- the distance between the fixed contact 3 and the movable contact 4 (insulation distance between the electric circuit and the ground) is assumed to be two sides of an isosceles triangle.
- the required dielectric strength needs to satisfy the relationship of “dielectric strength between electric circuit poles” ⁇ “dielectric strength between electric circuit and ground”.
- the above relationship can be said to be "insulation distance between circuit poles” ⁇ "insulation distance between circuit and ground”.
- the “height” is smaller than the “bottom length”. That is, the movable contact between the first fixed contact 2 and the second fixed contact 3 is larger than the movable contact that is separated from the first fixed contact 2 by the length of the base.
- the mounting base 6 is made of an insulating material, and the portion structurally joined to the movable contact 4 is set to an intermediate potential.
- the insulation distance between the first fixed contact 2 and the movable contact 4 and the insulation distance between the second fixed contact 3 and the movable contact 4 are the same as the first fixed contact 2 and the second fixed contact.
- the distance to the child 3 can be made close to 1 ⁇ 2, and the charging time can be further shortened.
- the equipment such as switchgear detects the electrical accident and an optical signal for instructing the introduction to the high-speed input device is input to the detonator 8 through the optical fiber 9 to activate the gas generator 7.
- the gas generator 7 To generate high-pressure gas instantly.
- the movable contact 4 is driven to the left in FIG. 1 by this high-pressure gas, and the making contact portion 4a and the first stationary contact 2 of the movable contact 4 and the making contact portion 4a and the second stationary contact of the movable contact 4 are fixed.
- the contact 3 is electrically connected.
- the electric circuit connected to the first fixed contact 2 and the electric circuit connected to the second fixed contact 3 are connected via the closing contact portion 4a of the movable contact 4 and become conductive.
- the accident current of the accident part that was energized via the resistance of the arc flows around the high-speed input device of the present invention with a very low impedance provided in the same circuit, and occurs in the accident part. Arcs that disappeared disappear.
- the protective relay and the circuit breaker of the power receiving and distributing system are operated while the accident current is energized. By disconnecting the electric circuit of the section, accidents can be removed from the power distribution system.
- the high-speed input device has been described with a focus on the configuration in which the high-speed input device is connected and arranged between the phases of the electric circuit.
- the first fixed contact 2 is the electric circuit
- the second fixed contact 3 is the The same effect can be achieved even when connected to the ground line.
- the high-speed input device of the present invention can energize the maximum short-circuit current of the system from the occurrence of an electrical accident to the operation of the circuit breaker of the system (usually a maximum of several seconds). For this reason, the effect of the heat and pressure rise due to the occurrence of an electrical accident in equipment such as switchgear only extends to the time from the occurrence of the electrical accident to the introduction of the high-speed input device of the present invention.
- the high speed input device of this embodiment is basically a high speed with a short input time. It is a thrower. Therefore, damage at the time of an electrical accident can be further reduced.
- FIG. 6 is a schematic cross-sectional view of a high-speed input device according to Embodiment 2 of the present invention.
- the diaphragm 5 used in the first embodiment is formed so as to be symmetric with respect to the dead point before and after the buckling of the diaphragm 5 accompanying the movement of the movable contactor 4.
- the diaphragm 12 is attached so as to be asymmetric with respect to the dead center before and after the buckling of the diaphragm 12 accompanying the movement of the movable contact 4.
- the diaphragm 12 according to the present embodiment has a diaphragm (introduced) indicated by a broken line in a state before the movable contact 4 is inserted, and a diaphragm 12a in a state after the movable contact 4 is input. After) It becomes the position of 12b.
- the diaphragm 12 In the state before the movable contactor 4 is thrown, the diaphragm (before throwing) 12a maintains the angle ⁇ from the dead point of the buckling, and the vacuum vessel 1 The movable contact 4 is held in contact with the flange portion 1f.
- the diaphragm (after injection) 12b is held at an angle ⁇ from the dead point of the buckling, and with respect to the first and second fixed contacts 2 and 3 Necessary contact force is applied to the making contact portion 4 a of the movable contact 4.
- the angle ⁇ is set to It is effective to make it as close to 0 ° as possible. At this time, the input drive energy can be reduced, and the input time can be further shortened.
- FIG. 7 shows a schematic cross-sectional view of a high-speed charging device according to Embodiment 3 of the present invention.
- the movable contact 4 used in the first embodiment is formed by the making contact portion 4a, the insulating portion 4c, and the sliding portion 4b.
- the movable contact 13 according to the present embodiment is composed of an input contact portion 13a made of a low resistance good conductive material such as copper and a sliding portion 13b made of a relatively high resistance material such as iron or stainless steel. ing.
- a metal material is used for the sliding portion 13b.
- a plastic material can be used as long as the material has a relatively high resistance and a high vacuum tightness.
- the movable contact 13 of the present embodiment can be manufactured at a lower cost than the movable contact 4 having the insulating portion 4c shown in the first embodiment, and a high-speed input device having a short input time can be obtained at a low cost. .
- FIG. 8 is a schematic cross-sectional view of a high-speed input device according to Embodiment 4 of the present invention.
- the movable contact 4 used in the first embodiment is formed by the making contact portion 4a, the insulating portion 4c, and the sliding portion 4b.
- the movable contact 14 of the present embodiment is integrally formed of the same material. Therefore, it can be easily processed and formed from, for example, a copper round bar.
- the fixed guide portion 1g is formed on the flange 1f of the vacuum vessel 1 using the same conductive material as the flange 1f.
- the high-speed input device can make the movable contact 14 at a lower cost than the movable contact 4, and the fixed guide portion 1g can use an insulating material. Can be obtained at low cost.
- FIG. 9 is a schematic cross-sectional view of a high-speed charging device according to Embodiment 5 of the present invention.
- a screw hole 16 is formed in the back of the sliding guide part 4d of the movable contact 4, and the screw diameter (valley diameter of the female screw) is attached to the initiation device 8 attached to the flange 1f. It is smaller than the diameter of the hole 17.
- the movable contact 4 has a configuration in which the screw hole 16 is formed in the back of the sliding guide portion 4d.
- the movable contact 4 is the movable contact 13 used in the third embodiment. Even the movable contact 14 used in the fourth embodiment can be used.
- the diaphragm 5 buckles and the movable contact performs a throwing operation, and after the completion of arc removal, it moves to the position of the broken line in the figure.
- the fastening member 11 of the mounting base 6 is removed, and the gas generator 7 and the detonator 8 are removed from the flange 1f.
- a mounting hole 17 is formed in the flange 1f, and a tool (not shown) is inserted into the screw hole 16 formed in the back of the sliding guide portion 4d of the movable contact 4 from the mounting hole 17. pull.
- the diaphragm 15 can be buckled and pulled back to the state before being thrown in, and can be assembled to the original state by newly replacing the gas generator 17 and the detonator 18.
- the high-speed input device it is possible to return the movable contact 4, the diaphragm 5, etc. to their original state by a simple operation without disassembling the entire device after being input once.
- a high-speed input device capable of input can be manufactured.
- FIG. 10 shows a schematic cross-sectional view of the high-speed feeder according to the present embodiment.
- FIG. 10 shows a state before the operation of the high-speed input device.
- the high-speed input device according to the present embodiment drives the single movable contact 4 between the two first and second fixed contacts 2 and 3 shown in the first to fifth embodiments, and inputs the circuit. It is not a thing but has a substantially symmetrical structure on the left and right, and has a structure with a feeder on each of the left and right. First, the structure of the feeder placed symmetrically on the left and right will be described with reference to the feeder placed on the right side of FIG.
- the first fixed contact 101 and the first movable contact 106 are arranged to face each other at a constant interval.
- the first fixed contact 101 has a fastening means 101b such as a screw hole for electrical connection with the electric circuit or the ground, and is in electrical contact with the first movable contact 106 during operation of the thrower.
- the contact part 101a is provided.
- the first movable contact 106 includes a closing contact portion 106 b at a portion facing the first fixed contact 1.
- the first fixed contact 101 and the first movable contact 106 are arranged as a pair in a substantially cylindrical first vacuum vessel 102 having a cylindrical insulating portion 102a formed of ceramic or the like. , One (right side in FIG. 10) of the feeder is configured.
- the first fixed contact 101 and the first movable contact 106 are electrically insulated by a cylindrical insulating portion 102a.
- the input device on the left side of FIG. 10 has basically the same structure.
- a pair of two movable contacts 108 are arranged in a substantially cylindrical second vacuum vessel 104 having an insulating portion 104a formed of a cylindrical ceramic.
- the second fixed contact 103 and the second movable contact 108 are electrically insulated by a cylindrical insulator 104a.
- Each of the first and second movable contacts 106 and 108 is formed of a substantially cylindrical conductor, and the operation method will be described later.
- the tip portion is processed to be substantially spherical so that it can easily come into contact with the contact portions 101a, 103a of the second fixed contacts 101, 103.
- Both of the substantially cylindrical movable contacts 106 and 108 have a hollow structure, and the opposite sides of the input contact portions 106b and 108b are opened.
- the first and second movable contacts 106 and 108 have different shapes on the substantially cylindrical opening side, and have a so-called nested configuration in which one is disposed inside the other.
- the nesting structure is formed so that the second movable contact 108 on the left side is on the outside and the first movable contact 106 on the right side is on the inside. / It is not limited whether it is inside, and it is sufficient that one side is outside and the other side is inside.
- a configuration in which two movable contacts are connected in a nested state may be referred to as a movable contact combined body.
- two first and second movable contacts 106 and 108 (movable contacts) having a nested structure in which the second movable contact 108 is disposed on the outer side and the first movable contact 106 is disposed on the inner side. Conjugate).
- the portions where the first movable contact 106 and the second movable contact 108 overlap each other are called sliding contact portions 106a and 108a.
- a first cylindrical bellows 107 is formed on the outer peripheral portion of the sliding contact portion 106a
- a second cylindrical bellows 109 is formed on the outer peripheral portion of the sliding contact portion 108a.
- first and second cylindrical bellows 107 and 109 Since the insides of the first and second vacuum vessels 102 and 104 are in a vacuum state, these first and second cylindrical bellows 107 and 109 have a vacuum state on the outer peripheral side of the bellows and the inside of the bellows. Let it be atmospheric pressure (atmosphere part 112). Therefore, the first and second cylindrical bellows 107 and 109 and the movable contactor assembly are arranged in close contact with each other by airtight joining.
- the sliding contact portions 106a and 108a are arranged concentrically so as to be in sliding contact with each other.
- the tip outer diameter part (projection part) 106c of the sliding contact part 106a of the first movable contactor 106 is in contact with the inner surface of the hollow part of the sliding contact part 108a, and the sliding contact of the second movable contactor 108a.
- the tip inner diameter portion 108 c of the portion 108 a is disposed in contact with the outer surface of the sliding contact portion 106 a of the first movable contact 106.
- the sliding contact portion 106a holds the inner diameter end portion 108c of the second movable contact 108 in order to fix the first movable contact 106 and the second movable contact 108 before the operation.
- a notch portion 106d is formed.
- the contact between the tip outer diameter portion 106c and the sliding contact portion 108a, and the contact between the tip inner diameter portion 108c and the sliding contact portion 106a are linear sliding movements of the two 101st and second movable contactors 106 and 108. While serving as a guide, the two first and second movable contacts 106 and 108 are maintained in the current-carrying state.
- the high-speed input device of the present invention connects between the first fixed contact 101 and the second fixed contact 103 and discharges an accident current to the ground or the like. It is important that the operation of the vessel occurs at the same time, and the vacuum is the distance in vacuum between the contact portion 101a of the first fixed contact 101 and the closing contact portion 106b of the 110th movable contact 106 Medium isolation dimension, vacuum isolation dimension between the contact portion 103a of the second stationary contact 103 and the input contact portion 108a of the second movable contact 108, and the two first and second bellows 107, 109. It is important to make all dimensions the same design specifications (shape, dimensions, dielectric constant of insulating material, etc.) in order to equalize the voltage sharing between the two vacuum disconnects. The balance of the feeder is improved, It is also possible to achieve the formulated.
- the two first and second vacuum vessels 102 and 104 are connected and fixed by a cylindrical air case 105.
- the space between the first and second stationary contacts 101 and 103 inside the two first and second vacuum vessels 102 and 104 and the first and second movable contacts 106 and 108 is first and second.
- the two vacuum parts 110 and 111 prevent discharge or the like when a first movable contact 106 and a second movable contact 108 described later operate.
- a gas generating part 113 is installed in the hollow part 122 of the sliding contact parts 106a and 108a in which the first and second movable contacts 106 and 108 are nested.
- the gas generating part penetrates the air case 105.
- An initiation device 114 connected to 113 and an optical fiber 116 for controlling the initiation device 114 are connected.
- This gas generation part 113 raises the pressure of the hollow part 122 of the movable contactor assembly which is in a nested state due to an increase in pressure associated with gas generation.
- the first movable contact 106 is moved in the right direction in FIG. 10 using the tip outer diameter portion 106c formed on the sliding contact 106a of the first movable contact 106 as a guide, and the second movable contact 106 is moved.
- the second movable contact 108 is moved to the left in FIG. 10 using the tip inner diameter portion 108c formed in the sliding contact portion 108a of the child 108 as a guide.
- the aerial case 105 and the detonator 114 and the like can be fixed using the fixing bracket 115, the screw hole 105a, etc. formed in the aerial case 105, and the explosives can be easily replaced and the gas generating part can be easily attached. It is preferable to use a simple attachment method so that it is possible. Since explosives, gas cylinders, etc. in the gas generation section need to be replaced due to aging, etc., simple installation and replacement methods based on replacement are important.
- an optical fiber 116 that is a signal line for transmitting an operation signal at high speed is suitable. Therefore, it is important to use the detonator 114 activated by an optical signal here.
- the first and second movable contacts 106 and 108 use a gas generating unit 113 such as gunpowder during operation and use the detonator 114 as a guide by the pressure change. Therefore, a guide slit is formed.
- FIG. 11 shows a schematic cross-sectional view of the high-speed charging device according to the present embodiment.
- FIG. 11 shows a state after the operation of the high-speed input device shown in FIG.
- the structure after the operation of the high speed input device according to the present embodiment and the input operation of the high speed input device will be described with reference to FIG.
- the high-speed input device is controlled by a signal instructing the operation, and the explosive device 114 burns the explosive of the gas generating unit 113 through the optical fiber 116, and the two first and second nests are in a nested state.
- Gas is generated in the hollow portion 122 of the two movable contacts 106 and 108.
- the pressure in the hollow portion 122 suddenly increases, and accordingly, the sliding contact portion 106a of the first movable contactor 106 and the sliding contact portion 108a of the second movable contactor 108 slide.
- the two first and second movable contacts 106 and 108 move outward, respectively.
- the first movable contact 106 moves to reach the first fixed contact 101 located at the right end of the high-speed input device, and the second movable contact 108 moves to move the second fixed contact 103 on the left side.
- the input contact portion 106 b of the first movable contact 106 is a contact portion 101 a of the first fixed contact 101
- the input contact portion 108 b of the second movable contact 108 is a contact portion 103 a of the second fixed contact 103. And connect respectively.
- Electromagnetic force acts on the contact portion 103a of the second fixed contact 103 in the inner circumferential direction, so that the closing contact portion 106b of the first movable contact 106 and the closing contact portion 108b of the second movable contact 108 are provided.
- the holding force can be reliably maintained and stable energization can be ensured.
- the aerial case 105 is provided with a vent hole 105b with outside air, and the inside of the aerial case 105 is lowered from the surrounding atmospheric pressure as the first and second movable contacts 106 and 108 are moved. Even in this case, the air flow with the outside air is secured through the vent 105b, and the movement and throwing-in speeds of the first and second movable contacts 106 and 108 are prevented from being limited.
- the high speed closing device is assumed to be held in the air, even when used to hold the high speed closing device in an insulating gas other than such SF 6 air Needless to say, the vent 105b formed in the air case 105 functions effectively.
- the first and second fixed contacts 101 and 103 of the high-speed input device shown in the present embodiment are, for example, the first fixed contact 101 connected to a one-phase electric circuit, and the second fixed contact 103 is connected to an electric circuit of another phase or to the ground. Therefore, the first and second movable contacts 106 and 108 are applied between the first and second fixed contacts 101 and 103.
- the dielectric strength which is an intermediate potential between the potentials and can maintain the insulation state, is determined by the contact between the first fixed contact 101 and the first movable contact 106, and the second fixed contact 103. It can be said that each of them and the contact point of the second movable contact 108 bears a half in calculation.
- the shared circular pressure between the two contacts may not be evenly distributed.
- the inter-layer dielectric strength is approximately 1 ⁇ 2.
- the distance between the electrodes is approximately 1 ⁇ 2 compared to the case where the contacts are configured with one contact. It can be.
- the first and second movable contacts 106 and 108 start moving from a stationary state and are gradually accelerated. Reach a certain speed.
- a thrower having a long moving distance of a movable terminal constituted by one contact and a thrower constituted by two contacts having a short moving distance of the first and second movable contacts 106, 108 of the present invention If it is assumed that the acceleration and the constant speed to reach are the same, even if the movement distance is halved, the time required to be thrown is not halved, but can be thrown in in a sufficiently short time.
- an optical signal for detecting the electrical accident and controlling the high-speed input device is transmitted to the optical fiber 116.
- the gas generation unit 113 installed inside the hollow portion 122 formed by nesting the first and second movable contacts 106 and 108 is input to the detonation device 114.
- the gas generation unit 113 instantaneously generates high-pressure gas and rapidly increases the pressure in the hollow portion 122.
- the distal outer diameter portion 106c of the first movable contact 106 and the sliding contact portion 108a of the second movable contact 108, and the distal inner diameter portion 108c of the second movable contact 108 and the first movable contact are automatically disengaged, the first movable contact 106 moves in the right direction in FIG. 10, and the second movable contact 108 moves in the left direction.
- the second fixed contacts 101 and 103 are contacted (FIG. 11).
- the input contact portions 106b and 108b located at the tips of the first and second movable contacts 106 and 108 are gripped.
- the contact state between the first fixed contact 101 and the first movable contact 106, and the second fixed contact 103 and the second movable contact 108 is made more reliable.
- the charging contact portions 106b and 108b which are the leading end portions of the first and second movable contacts 106 and 108, enter the contact portion.
- the closing contact portion 106b and the first fixed terminal 101 and the closing connection portion 108b and the second fixed contact 103 collide and rebound at the time of closing, the stable energizing contact can be maintained. Can do.
- the first and second movable contacts 106 and 108 are electrically in contact with each other via the sliding contact portions 106a and 108a and maintained in a conductive state.
- conduction between the first fixed contact 101 and the second fixed contact 103 can be stably maintained, and is generated in the electric circuit of equipment such as a switch gear.
- the current of the electrical accident is bypassed and flows through the high-speed input device of the present invention having a very low impedance provided in the same circuit, and the arc generated at the accident point is extinguished.
- the system system protection relay and the circuit breaker operate while the accident current is energized to disconnect the electric circuit in the accident section.
- Accidents can be removed from the grid system.
- the high-speed input device of the present invention can energize the maximum short-circuit current of the system from the occurrence of an accident until the circuit breaker operates (usually a maximum of several seconds).
- the effect of the pressure increase is only the time from the occurrence of an electrical accident to the introduction of the high-speed input device of the present invention, as described in Patent Document 1 and Non-Patent Document 1, rather than being configured by one contact.
- the moving distance of the first and second movable contacts 106 and 108 can be shortened and can be loaded in a short time.
- the two first and second movable terminals 106 and 108 are nested, and the gas generating part 113 is provided in the hollow part 122 between them.
- the first movable contact 106 is opposed to the first fixed contact 101 facing the first movable contact 106 and the second fixed contact 103 facing the second movable contact 108 at a high speed. Therefore, it can be charged at a higher speed than the thrower using mechanical power conduction shown in Patent Document 2, and damage to peripheral devices at the time of an electrical accident can be minimized.
- FIG. FIG. 12 shows a schematic cross-sectional view of the high-speed charging device according to the present embodiment.
- the basic configuration of the high-speed input device according to the present embodiment is the same as that of the high-speed input device described in the sixth embodiment, and only different parts will be described.
- the high-speed input device is used by being fixed to a ground potential structure 120 such as a switchgear housing, and the insulating support 117 is formed by the first and second fixed contacts 101 and 103. Insulates the ground with respect to the intermediate potential generated between the electric circuits, and simultaneously fits the fixing bracket 115, covers the detonator 114, the optical fiber 116, and the optical connector 118, and fixes the high-speed input device to the structure 120.
- the optical fiber cable 119 is connected to the optical connector 118).
- As the insulating support 117 for example, an epoxy resin can be used, and a molded product formed by casting as an integral unit can be used.
- the structure 120 and the insulating support 117 can be fastened and fixed to the structure 120 by bolts (not shown) passed through bolt holes (not shown) formed in the insulating support 117.
- the electric circuit and the first and second fixed contacts 101 and 103 can be connected by a lead wire or the like.
- free It has a feature that can be attached to various positions. Therefore, it is effective for miniaturization and space saving of switchgear and power distribution equipment to enable efficient layout planning at the time of new production and additional installation to existing equipment.
- FIG. 13 shows a schematic cross-sectional view of the high-speed feeder according to the present embodiment.
- the basic configuration of the high-speed input device according to the present embodiment is the same as the high-speed input device described in the sixth and seventh embodiments, and only different parts will be described.
- the high-speed input device includes a guide 121 for stabilizing the sliding operation of the first and second movable contacts 106 and 108 inside the air case 105.
- the sliding movement of the first and second movable contacts 106 and 108 is a sliding contact which is an overlapping portion of the movable contactor combination composed of the first and second movable contacts 106 and 108 having a nested structure.
- the sliding motions in which the first and second movable contactors 106 and 108 move in opposite directions are stabilized by the portions 106a and 108a, the distal outer diameter portion 106c, and the distal inner diameter portion 108c.
- the gas generator 113 and the detonator 114 disposed in the hollow portion 122 of the first and second movable contacts 106 and 108 also partially play a role of a guide for the sliding operation.
- the sliding operation guide 121 is provided in a part of the air case 105 along the outer peripheral portion of the movable contactor assembly, the gas generator 113, the detonator 114, and the like. It is not necessary to provide a guide function for the gas generator 113, there is no restriction on the size of the gas generator 113, the detonator 114, etc., the range of selection of the gas generator 113, the detonator 114, etc. is widened, and the cost of the high-speed input device is increased. Can be reduced.
- FIG. 14 shows the configuration of the switch gear 125 using the high-speed input device 123 shown in the first embodiment.
- the high-speed input device 123 shown in the first embodiment is used, but the high-speed input device shown in the second to eighth embodiments can also be used.
- FIG. 14 shows an example of the configuration of the switch gear 125.
- a branch path is provided between the three-phase buses 124 and a high-speed input device 123 is provided.
- a branch path may be provided between the bus 124 and the ground, between the electrical paths 126 connected to the bus 124, between the electrical path 126 and the ground, and the high-speed input device 123 may be installed and used.
- the electric circuit 126 is connected from each of the three-phase buses 124, and each electric circuit is connected to the apparatus via the circuit breaker 127.
- the high-speed input device 123 is connected between the buses 124.
- the circuit breaker 127 operates immediately. However, since the removal of the arc takes about 100 milliseconds or more, the device may be destroyed during that time. .
- the bus 124 connected to the electric circuit 126 where the electric accident occurred is electrically connected to the adjacent bus 124 by the high-speed input device 123 in an extremely short time than the operation of the circuit breaker 127.
- the current flowing through the bus 124 where the electric accident has occurred passes through the high-speed input device 123 having a lower impedance and flows to the other bus 124, so that no electricity is supplied to the device, and the device can be prevented from being destroyed.
- the high-speed input device 123 described in Embodiment 1 since the high-speed input device 123 described in Embodiment 1 is used, the supply of electricity in the apparatus can be stopped in a very short time, and the apparatus can be protected.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Gas-Insulated Switchgears (AREA)
- Contacts (AREA)
Abstract
Description
<高速投入器の構造>
図1、図2を用いて、本実施の形態の高速投入器の構造を説明する。本実施の形態に示す高速投入器は、2つの固定接触子間に一つの可動接触子が動作して回路の投入を行うものであり、図1は本発明の実施の形態1に係る高速投入器の断面図である。図2は本発明の実施の形態1に係る高速投入器の平面図である。
高速投入器の構造の説明に用いた図1と、図3、図4および図5を用いて、本実施の形態に係る高速投入器の投入動作を説明する。図3は本実施の形態に係る高速投入器の可動接触子4と第1、第2の固定接触子2、3との接触直前の電磁力の方向を示す説明図であり、図4は本実施の形態に係る高速投入器の投入後の断面図、図5は図4のY-Y断面の矢視図である。
図6を用いて実施の形態2に係る高速投入器を説明する。図6は本発明の実施の形態2に係る高速投入器の断面模式図を示している。実施の形態1で用いたダイヤフラム5は、可動接触子4の動きに伴うダイヤフラム5のバックリングの前後で、死点に対して対称な位置となるように形成されていた。
図7を用いて実施の形態3に係る高速投入器を説明する。図7は本発明の実施の形態3に係る高速投入器の断面模式図を示している。実施の形態1で用いた可動接触子4は投入接触部4a、絶縁部4c、摺動部4bで形成していた。しかし、本実施の形態の可動接触子13は例えば銅などの低抵抗良電導材料からなる投入接触部13aと、例えば鉄やステンレスなどの比較的高抵抗の材料からなる摺動部13bで構成されている。
図8を用いて実施の形態4に係る高速投入器を説明する。図8は本発明の実施の形態4に係る高速投入器の断面模式図を示している。実施の形態1で用いた可動接触子4は投入接触部4a、絶縁部4c、摺動部4bで形成していたが、本実施の形態の可動接触子14は一体が同一材料で形成されているため、例えば銅丸棒から容易に加工し形成することができる。
図9を用いて実施の形態5に係る高速投入器を説明する。図9は本発明の実施の形態5に係る高速投入器の断面模式図を示している。本実施の形態においては、可動接触子4の摺動ガイド部4dの奥にネジ穴16を形成しており、ネジ径(雌ネジの谷径)は、フランジ1fに取り付けた起爆装置8の装着穴17の直径よりも小さい。
<高速投入器の構造>
図10に本実施の形態に係る高速投入器の断面模式図を示す。図10は高速投入器の動作前の状態を示している。本実施の形態に係る高速投入器は、実施の形態1~5に示した2つの第1、第2の固定接触子2、3の間に1つの可動接触子4を駆動させ回路投入を行うものではなく、左右にほぼ対称な構造をしており、左右にそれぞれ投入器を有する構造を備えている。そこでまず左右に対称に位置する投入器の構造を、図10の右側に位置する投入器を用いて説明する。
図11に本実施の形態に係る高速投入器の断面模式図を示す。図11は図10に示した高速投入器の動作後の状態を示している。図11を用いて、本実施の形態に係る高速投入器の動作後の構造、および高速投入器の投入動作について説明する。
本実施の形態に示した高速投入器の第1、第2の固定接触子101、103は、例えば第1の固定接触子101は一相の電路に接続しており、第2の固定接触子103は他相の電路または大地へ接続している、したがって、第1、第2の可動接触子106、108は第1、第2の固定接触子101、103間に印加される相間あるいは大地間電位の中間電位であり、絶縁状態を維持することができる電界強度である絶縁耐力は、第1の固定接触子101と第1の可動接触子106との接点と、第2の固定接触子103と第2の可動接触子108との接点とでそれぞれ計算上は1/2ずつ担っていると言える。
図12に本実施の形態に係る高速投入器の断面模式図を示す。本実施の形態に係る高速投入器の基本的な構成は、実施の形態6に記載した高速投入器と同じであり、異なった部分のみを説明する。
図13に本実施の形態に係る高速投入器の断面模式図を示す。本実施の形態に係る高速投入器の基本的な構成は、実施の形態6、7に記載した高速投入器と同じであり、異なった部分のみを説明する。
図14に実施の形態1で示した高速投入器123を用いたスイッチギヤ125の構成を示す。ここでは実施の形態1に示した高速投入器123を用いたが、実施の形態2~8等に示した高速投入器も用いることができる。図14はスイッチギヤ125の構成の一例を示すもので、この図では3相の母線124間に分岐経路を設け、高速投入器123を備えている。その他に母線124と大地の間、母線124に接続した電路126相互間、電路126と大地の間等に分岐経路を設け、高速投入器123を設置して用いることもできる。
1f フランジ、1g 摺動ガイド部、2 第1の固定接触子、2a 締結用ネジ穴、
3 第2の固定接触子、3a 締結用ネジ穴、4 可動接触子、4a 投入接触部、
4b 摺動部、4c 絶縁部、4d 摺動ガイド部、5 ダイヤフラム、
6 取り付け台、6a 締結ネジ穴、7 ガス発生部、8 起爆装置、
9 光ファイバー、10 コネクタ、11 締結部品、12 ダイヤフラム、
12a ダイヤフラム(投入前)、12b ダイヤフラム(投入後)、
13 可動接触子、13a 投入接触部、13b 摺動部、14 可動接触子、
15 摺動ガイド部、16 ネジ穴、17 装着穴、
101 第1の固定接触子、101a 接触部、101b 締結手段、
102 第1の真空容器、102a 絶縁部、103 第2の固定接触子、
103a 接触部、103b 締結手段、104 第2の真空容器、
104a 絶縁部、105 気中ケース、105a ネジ部、105b 通気口、
106 第1の可動接触子、106a 摺動接触部、106b 投入接触部、
106c 先端外径部、106d ノッチ部、107 第1のベローズ、
108 第2の可動接触子、108a 摺動接触部、108b 投入接触部、
108c 先端内径部、109 第2のベローズ、110 第1の真空部、
111 第2の真空部、112 大気中部、113 ガス発生部、114 起爆装置、115 固定金具、116 光ファイバー、117 絶縁支持物、118 光コネクタ、119 光ファイバー、120 構造物、121 ガイド、122 中空部、123 高速投入器、124 母線、125 スイッチギヤ、126 電路、127 遮断器。
Claims (24)
- 導電性材料から成る第一の固定接触子と、
導電性材料から成り、前記第一の固定接触子と対向して配置された第二の固定接触子と、
先端部が導電性材料から成り、前記先端部の反対側が開口した中空穴を内部に有し、投入前においては前記第一の固定接触子と前記第二の固定接触子とから絶縁距離以上離れて配置され、投入後においては前記第一の固定接触子と前記第二の固定接触子との間に前記先端部を挿入して前記第一の固定接触子と前記第二の固定接触子との間を電気的に接続する可動接触子と、を備えた高速投入器。 - 前記中空穴にガス発生部が配置されたことを特徴とする請求項1に記載の高速投入器。
- 前記可動接触子の中空穴に配置されたガス発生部から発生するガスにより前記可動接触子が押し出されて移動し、前記可動接触子が前記第一の固定接触子と前記第二の固定接触子との間に挿入され、前記第一の固定接触子と前記第二の固定接触子との間を電気的に接続することを特徴とする請求項2に記載の高速投入器。
- 内部を減圧状態に維持する真空容器と、
前記真空容器内に配置された前記第二の固定接触子と前記第二の固定接触子と前記可動接触子と、
前記可動接触子の投入方向に真空室と大気エリアとを気密保持するダイヤフラムと、を備え、
前記ダイヤフラムのバックリング動作により前記可動接触子が前記第一の固定接触子と前記第二の固定接触子との間に挿入され、前記第一の固定接触子と前記第二の固定接触子との間を電気的に接続することを特徴とする請求項1~3のいずれか1項に記載の高速投入器。 - 前記ダイヤフラムは、1つ以上の同心円の薄肉部を有することを特徴とする請求項4に記載の高速投入器。
- 前記ダイヤフラムは、1つ以上の同心円の段形状を有することを特徴とする請求項4に記載の高速投入器。
- 前記可動接触子が前記第一の固定接触子および前記第二の固定接触子が接近し、プレアークの発生により電流が流れた時に生じる電磁力が、前記可動接触子を前記第一の固定接触子と前記第二の固定接触子との間に挿入する方向に働くことを特徴とする請求項1~6のいずれか1項に記載の高速投入器。
- 前記可動接触子が大地電位と絶縁された中間電位であることを特徴とする請求項1~7のいずれか1項に記載の高速投入器
- 前記バックリングの死点に対する前記ダイヤフラムの角度が、前記可動接触子の投入前の方が前記可動接触子の投入後よりも小さいことを特徴とする請求項4~8のいずれか1項に記載の高速投入器。
- 前記可動接触子の投入をガイドする摺動ガイド部が、前記真空容器の一部を構成するフランジ部と同一材料で形成されていることを特徴とする請求項1~9のいずれか1項に記載の高速投入器。
- 前記可動接触子の投入をガイドする前記摺動ガイド部が、絶縁材料で形成されていることを特徴とする請求項1~10のいずれか1項に記載の高速投入器。
- 前記可動接触子の前記中空穴の内部奥に形成されたネジ穴と、前記フランジ部に形成された前記ガス発生部の起爆装置の装着穴と、を備え、前記ネジ穴より前記装着穴の直径が大きいことを特徴とする請求項1~11のいずれか1項に記載の高速投入器。
- 中空円筒状の導電材料からなり、一方の端の開口部と他方の端の閉口部とを有する第一の可動接触子と、中空円筒状の導電材料からなり、一方の端の開口部と他方の端の閉口部とを有する第二の可動接触子と、を備え、前記第一の可動接触子の開口部に、前記第二の可動接触子の開口部が、入れ子構造となるように挿入された可動接触子結合体と、
導電材料からなり、非動作時において、前記第一の可動接触子の閉口部と一定間隔を隔てて対向する第一の固定接触子、および前記第二の可動接触子の閉口部と一定間隔を隔てて対向する第二の固定接触子と、
前記可動接触子結合体の内部に形成された中空部に設置されるガス発生部と、
を備えた高速投入器。 - 前記第一の可動接触子の閉口部と前記第一の固定接触子、および前記第二の可動接触子の閉口部と前記第二の固定接触子とが、動作時において電気的に接続し、前記第一の固定接触子と前記第二の固定接触子との間に通電されることを特徴とする請求項13に記載の高速投入器。
- 前記第一の固定接触子と前記第二の固定接触子との間の通電により、前記第一の固定接触子に電気的に接続した前記第一の可動接触子の閉口部、および前記第二の固定接触子に電気的に接続した前記第二の可動接触子の閉口部を把持する方向に電磁力が作用する電流経路を有することを特徴とする請求項13または14のいずれか1項に記載の高速投入器。
- 前記可動接触子結合体の中空部に配置されたガス発生部からガスが発生し、前記中空部の圧力が上昇し、前記可動接触子結合体を構成する前記第一の可動接触子と前記第二の可動接触子とがそれぞれ相反する方向に移動することを特徴とする請求項13~15のいずれか1項に記載の高速投入器。
- 前記ガス発生部が、外部からの制御によりガスを発生するガスボンベであることを特徴とする請求項13~16のいずれか1項に記載の高速投入器。
- 前記ガス発生部が、外部からの制御によりガスを発生する火薬であることを特徴とする請求項13~16のいずれか1項に記載の高速投入器。
- 前記可動接触子結合体が真空容器内に設置され、前記真空容器を構成する各面の内、相互に対向する面に前記第一の固定接触子と前記第二の固定接触子とそれぞれ配置されていることを特徴とする請求項13~18のいずれか1項に記載の高速投入器。
- 2つの前記固定接触子、2つの前記真空容器、2つの前記可動接触子の形状諸元はお互いに同一であることを特徴とする請求項13~19のいずれか1項に記載の高速投入器。
- 前記真空容器が、前記第一の固定接触子と前記第一の可動接触子とを含む第一の真空容器と、前記第二の固定接触子と前記第二の可動接触子とを含む第二の真空容器と、を備え、
前記第一の真空容器と、前記第二の真空容器とが減圧状態ではない気中ケースにより接続されていることを特徴とする請求項13~20のいずれか1項に記載の高速投入器。 - 前記気中ケースが、
絶縁支持物により大地電位の構造物に固定されていることを特徴とする請求項13~21のいずれか1項に記載の高速投入器。 - 前記気中ケースの内面に、前記可動接触子結合体の外周部をガイドする摺動ガイドを備えたことを特徴とする請求項13~22のいずれか1項に記載の高速投入器。
- 母線と、
前記母線に接続された電路と、
前記電路に設けられた遮断器と、
前記母線または前記電路からの分岐経路に設けられた請求項1~23に記載の高速投入器と、を備えたスイッチギヤ。
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KR1020177002985A KR101905338B1 (ko) | 2014-08-28 | 2015-05-26 | 고속 투입기 및 이것을 구비한 스위치 기어 |
CN201580044992.0A CN106605284B (zh) | 2014-08-28 | 2015-05-26 | 高速接通器及具备该高速接通器的开关机构 |
JP2016544996A JP6109430B2 (ja) | 2014-08-28 | 2015-05-26 | 高速投入器およびこれを備えたスイッチギヤ |
US15/317,304 US10593496B2 (en) | 2014-08-28 | 2015-05-26 | High-speed closing device and switchgear including high-speed closing device |
DE112015003940.6T DE112015003940T5 (de) | 2014-08-28 | 2015-05-26 | Hochgeschwindigkeits-Schließeinrichtung und Schaltungsanlage, die eine Hochgeschwindigkeits-Schließeinrichtung aufweist |
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WO2022215691A1 (ja) * | 2021-04-09 | 2022-10-13 | 三菱電機株式会社 | 高速投入器、電力用変換装置およびスイッチギヤ |
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DE102017106117B3 (de) * | 2017-03-22 | 2018-07-12 | Auto-Kabel Management Gmbh | Elektrischer Schließer sowie KFZ mit einem elektrischen Schließer |
CN110932155A (zh) * | 2019-12-19 | 2020-03-27 | 上海纳杰电气成套有限公司 | 一种配金属铠装移开式开关柜接地开关双向电气机械闭锁机构 |
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- 2015-05-26 DE DE112015003940.6T patent/DE112015003940T5/de active Pending
- 2015-05-26 JP JP2016544996A patent/JP6109430B2/ja active Active
- 2015-05-26 US US15/317,304 patent/US10593496B2/en active Active
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US20170126000A1 (en) | 2017-05-04 |
JPWO2016031327A1 (ja) | 2017-04-27 |
KR20170028399A (ko) | 2017-03-13 |
CN106605284B (zh) | 2018-10-30 |
KR101905338B1 (ko) | 2018-10-05 |
CN106605284A (zh) | 2017-04-26 |
DE112015003940T5 (de) | 2017-05-11 |
US10593496B2 (en) | 2020-03-17 |
JP6109430B2 (ja) | 2017-04-05 |
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