CN109872512B - Substation bus override trip alarm system - Google Patents

Substation bus override trip alarm system Download PDF

Info

Publication number
CN109872512B
CN109872512B CN201910273951.9A CN201910273951A CN109872512B CN 109872512 B CN109872512 B CN 109872512B CN 201910273951 A CN201910273951 A CN 201910273951A CN 109872512 B CN109872512 B CN 109872512B
Authority
CN
China
Prior art keywords
fixedly connected
bus
side wall
block
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201910273951.9A
Other languages
Chinese (zh)
Other versions
CN109872512A (en
Inventor
李振玲
李鹏
万月忠
刘福涛
侯昆明
徐跃东
朱世盘
张程程
鲍乐
王立虎
邹尊强
刁维晓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201910273951.9A priority Critical patent/CN109872512B/en
Publication of CN109872512A publication Critical patent/CN109872512A/en
Application granted granted Critical
Publication of CN109872512B publication Critical patent/CN109872512B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Emergency Alarm Devices (AREA)

Abstract

The invention discloses a substation bus override trip alarm system which comprises a bus base, wherein both sides of the bus base are fixedly connected with buses, and the outer side wall of the bus base is fixedly connected with four fixing mechanisms in 2 x 2 arrangement; the interior bottom fixedly connected with two mounting panels of generating line base. When the bus current-limiting device is used, the stability of the bus current-limiting device is ensured through the action of the fixing mechanism, and then when a fault occurs, the current of the first conductive block is increased, so that the ampere force obtained by the first conductive block is increased under the action of the first magnet block and the second magnet block, and the first conductive block is connected with the flow guide mechanism under the action of the ampere force, so that the current in the bus is ensured to be in a stable range through the resistance block in the flow guide mechanism, the bus current-limiting device can still be used when the fault occurs, and the quick alarm effect can be realized through the arrangement of the connecting mechanism and the alarm device, so that an operator is reminded of carrying out quick maintenance treatment.

Description

Substation bus override trip alarm system
Technical Field
The invention relates to the technical field of substation equipment, in particular to a substation bus override trip alarm system.
Background
The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in an electric power system. When a transformer substation is frequently used, short circuit or other various faults of primary equipment occur, high current is continuously input due to the fact that a breaker fails, and machines and the like of a user end are damaged due to the continuous high current.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a substation bus override trip alarm system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a transformer substation bus override trip alarm system comprises a bus base, wherein buses are fixedly connected to two sides of the bus base, and four fixing mechanisms in 2-by-2 arrangement are fixedly connected to the outer side wall of the bus base; the inner bottom of the bus base is fixedly connected with two mounting plates, one side of each mounting plate, which is opposite to the other mounting plate, is provided with a mounting groove, the inner side wall of each mounting groove is fixedly connected with a first conductive block, the bus is fixedly connected with a flow guide mechanism, the tops of the two mounting plates are provided with the same connecting plate, the two ends of the bottom of each connecting plate are respectively connected with the tops of the mounting plates in a sliding manner, the bottom of each connecting plate is fixedly connected with a second conductive block, and the two sides of each second conductive block are respectively contacted with the outer side walls of the two first; one side of the connecting plate is connected with the inner side wall of the bus base through a first spring, two ends of the first spring are respectively and fixedly connected with the inner side wall of the bus base and the outer side wall of the connecting plate, one side of the connecting plate, far away from the first spring, is fixedly connected with an extension rod, one end of the extension rod, far away from the connecting plate, penetrates through the inner side wall of the bus base and extends outwards, the outer side wall of the bus base is fixedly connected with a fixed block, and the extension rod is connected with the fixed block through a limiting mechanism; the bus bar comprises a bus bar base, a connecting plate and a pressing block, wherein the inner side wall of the bus bar base is provided with an accommodating groove, the inside of the accommodating groove is provided with the pressing block, the outer side wall of the connecting plate is connected with the pressing block through a connecting mechanism, and the bus bar base is fixedly provided with an alarm device; the top of generating line base is through a plurality of second handle bolt fixedly connected with top caps, the first magnet piece of interior bottom fixedly connected with of generating line base, the bottom fixedly connected with second magnet piece of top cap, just the second magnet piece is located first magnet piece directly over, the relative one side magnetism of first magnet piece and second magnet piece is opposite.
Preferably, the fixing mechanism comprises a mounting block fixedly connected to the outer side wall of the bus base, and a first handle bolt is connected to the mounting block in a threaded manner.
Preferably, the diversion mechanism comprises branch lines fixedly connected to the bus, a placing groove is formed in one side, opposite to the mounting plate, of the two mounting plates, a resistance block is fixedly connected to the inner side wall of the placing groove, and one end, far away from the bus, of each of the two branch lines is fixedly connected with the resistance block.
Preferably, the equal fixedly connected with in bottom both ends of connecting plate is the slider of T type, the spout that corresponds with the slider is seted up at the top of mounting panel.
Preferably, the two sides of the second conductive block are provided with connecting grooves, conductive balls are arranged in the connecting grooves, and the outer side walls of the conductive balls are in contact with the inner side walls of the connecting grooves and the outer side walls of the first conductive blocks.
Preferably, the inside wall of generating line base is seted up and is run through the mouth that corresponds with the extension rod position, the fixed rubber sealing layer that bonds of inside wall that runs through the mouth.
Preferably, stop gear includes the stopper, the fixed slot that corresponds with the stopper is seted up to the lateral wall of extension rod, the interior bottom fixedly connected with second spring of fixed slot, the second spring is kept away from the one end of bottom in the fixed slot and the tip fixed connection of stopper, set up the bayonet socket that corresponds with the stopper on the fixed block.
Preferably, the connecting mechanism comprises an adjusting rod which is obliquely arranged, the outer side wall of the connecting plate and the abutting block are fixedly connected with mounting seats which are U-shaped, the inner side wall of each mounting seat is fixedly connected with a fixed shaft, and the end part of the adjusting rod is rotatably sleeved on the outer side wall of the fixed shaft.
Preferably, alarm device is including seting up the battery stabilization trough at bus bar base top, install the battery in the battery stabilization trough, the equal fixedly connected with elastic conducting strip in both ends in battery stabilization trough, just the both ends of battery contact with two elastic conducting strips respectively, the interior bottom fixedly connected with who accomodates the groove touches the pressure switch, just touch the input of pressure switch and be connected through first wire and one of them elastic conducting strip, the output that touches the pressure switch is connected with bee calling organ through second wire electricity, just bee calling organ fixed connection is on bus bar base's inside wall, bee calling organ's output is connected with another elastic conducting strip electricity.
The beneficial effects of the invention are as follows:
during the use, guarantee the stability of this device through fixed establishment's effect, when breaking down after that, lead to the electric current grow of first conducting block, thereby make the ampere force grow that first conducting block obtained under the effect of first magnet piece and second magnet piece, and then make first conducting block be connected with water conservancy diversion mechanism under the effect of ampere force, the resistance piece through in the water conservancy diversion mechanism guarantees being in the stability range of electric current in the generating line like this, when then breaking down, still can use, and can realize the effect of quick warning through coupling mechanism and alarm device's setting, remind operating personnel to carry out quick maintenance processing like this.
Drawings
Fig. 1 is a schematic structural diagram of a substation bus override trip alarm system according to the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic diagram of an internal structure of a bus base in the substation bus override trip alarm system according to the present invention;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is a schematic view of a connection structure of a bus base and an installation block in a substation bus override trip alarm system according to the present invention;
fig. 6 is a schematic top view of a substation bus override trip alarm system according to the present invention.
In the figure: the bus comprises a bus base 1, a bus 2, a fixing mechanism 3, a mounting block 31, a first handle bolt 32, a mounting plate 4, a first conductive block 5, a flow guide mechanism 6, a branch line 61, a resistance block 62, a connecting plate 7, a second conductive block 8, a pressing block 9, a connecting mechanism 10, an adjusting rod 101, a mounting seat 102, a first spring 11, an extension rod 12, a fixing block 13, a limiting mechanism 14, a limiting block 141, a second spring 142, a top cover 15, a first magnet 16, a second magnet 17, a conductive ball 18, a battery 19, a touch switch 20, a first lead 21, a second lead 22 and a buzzer 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-6, a substation bus override trip alarm system comprises a bus base 1, wherein both sides of the bus base 1 are fixedly connected with buses 2, and the outer side wall of the bus base 1 is fixedly connected with four fixing mechanisms 3 which are arranged in 2 x 2;
it should be noted that the fixing mechanism 3 includes a mounting block 31 fixedly connected to the outer side wall of the bus bar base 1, and a first handle bolt 32 is connected to the mounting block 31 in a threaded manner, so that the fixing mechanism 3 is used to facilitate the fixed mounting of the bus bar base 1.
The inner bottom of the bus base 1 is fixedly connected with two mounting plates 4, one side, opposite to the two mounting plates 4, of each mounting plate is provided with a mounting groove, the inner side wall of each mounting groove is fixedly connected with a first conductive block 5, the bus 2 is fixedly connected with a flow guide mechanism 6, the tops of the two mounting plates 4 are provided with a same connecting plate 7, two ends of the bottom of each connecting plate 7 are respectively connected with the tops of the mounting plates 4 in a sliding mode, the bottom of each connecting plate 7 is fixedly connected with a second conductive block 8, and two sides of each second conductive block 8 are respectively contacted with the outer side walls of the two;
it should be noted that: 1. the diversion mechanism 6 comprises branch lines 61 fixedly connected to the bus 2, a placing groove is formed in one side, opposite to the two mounting plates 4, of the placing groove, a resistance block 62 is fixedly connected to the inner side wall of the placing groove, and one ends, far away from the bus 2, of the two branch lines 61 are fixedly connected with the resistance block 62, so that through the diversion mechanism 6, when the current is too large, the resistance in the circuit can be rapidly increased through diversion equipment, the current is stabilized within a normal range, and the use of electricity by people cannot be influenced;
1. the slider that the equal fixedly connected with in bottom both ends of connecting plate 7 is the T type, and the spout that corresponds with the slider is seted up at the top of mounting panel 4, is convenient for like this connecting plate 7 and mounting panel 4's top sliding connection.
2. The spread groove has been seted up to the both sides of second conducting block 8, is equipped with electrically conductive ball 18 in the spread groove, and the lateral wall of electrically conductive ball 18 and the inside wall of spread groove and the lateral wall contact of first conducting block 5 can reduce the frictional force when sliding between second conducting block 8 and the first conducting block 5 through the effect of electrically conductive ball 18 like this.
One side of the connecting plate 7 is connected with the inner side wall of the bus base 1 through a first spring 11, two ends of the first spring 11 are fixedly connected with the inner side wall of the bus base 1 and the outer side wall of the connecting plate 7 respectively, one side of the connecting plate 7, which is far away from the first spring 11, is fixedly connected with an extension rod 12, one end of the extension rod 12, which is far away from the connecting plate 7, penetrates through the inner side wall of the bus base 1 and extends outwards, the outer side wall of the bus base 1 is fixedly connected with a fixed block 13, and the extension rod 12 is connected with the fixed block 13;
it should be noted that: 1. a through hole corresponding to the position of the extension rod 12 is formed in the inner side wall of the bus base 1, and a rubber sealing layer is fixedly bonded to the inner side wall of the through hole, so that the sealing performance between the connection position of the extension rod 12 and the bus base 1 is facilitated under the action of the rubber sealing layer;
2. stop gear 14 includes stopper 141, the fixed slot that corresponds with stopper 141 is seted up to extension rod 12's lateral wall, the interior bottom fixedly connected with second spring 142 of fixed slot, the one end of bottom and stopper 141's tip fixed connection in the fixed slot are kept away from to second spring 142, set up the bayonet socket that corresponds with stopper 141 on the fixed block 13, effect through stop gear 14 can make quick stability between extension rod 12 and the fixed block 13 like this, when extension rod 12 moves forward, stopper 141 will enter into in the bayonet socket under second spring 142's effect, thereby realize extension rod 12 and fixed block 13 stably, and then guarantee connecting plate 7's stability.
The bus bar comprises a bus bar base 1, a connecting plate 7, a pressing block 9, a connecting mechanism 10, an alarm device and a power supply, wherein the inner side wall of the bus bar base 1 is provided with an accommodating groove, the pressing block 9 is arranged in the accommodating groove, the outer side wall of the connecting plate 7 is connected with the pressing block 9 through the connecting mechanism 10, and the alarm device is fixedly arranged on the bus;
it should be noted that: 1. the connecting mechanism 10 comprises an adjusting rod 101 which is obliquely arranged, the outer side wall of the connecting plate 7 and the pressing block 9 are fixedly connected with a U-shaped mounting seat 102, the inner side wall of the mounting seat 102 is fixedly connected with a fixed shaft, and the end part of the adjusting rod 101 is rotatably sleeved on the outer side wall of the fixed shaft, so that the pressing block 9 is driven to move forwards when the connecting plate 7 moves forwards under the action of the connecting mechanism 10, and the alarm device after triggering is triggered;
2. alarm device is including seting up the battery stabilization groove at bus bar base 1 top, install battery 19 in the battery stabilization groove, the equal fixedly connected with elastic conducting strip in both ends in battery stabilization groove, and battery 19's both ends contact with two elastic conducting strips respectively, the interior bottom fixedly connected with who accomodates the groove touches and presses switch 20, and touch and press switch 20's input and be connected with one of them elastic conducting strip through first wire 21, touch and press switch 20's output and be connected with bee calling organ 23 through second wire 22 electricity, and bee calling organ 23 fixed connection is on bus bar base 1's inside wall, bee calling organ 23's output is connected with another elastic conducting strip electricity, when press and press switch 20 when suppressing block 9 like this, make alarm circuit circulate, thereby realize the effect of reporting to the police.
The top of the bus bar base 1 is fixedly connected with a top cover 15 through a plurality of second handle bolts, the inner bottom of the bus bar base 1 is fixedly connected with a first magnet block 16, the bottom of the top cover 15 is fixedly connected with a second magnet block 17, the second magnet block 17 is located right above the first magnet block 16, and the opposite sides of the first magnet block 16 and the second magnet block 17 are opposite in magnetism.
The working principle of the invention is as follows:
during the use, guarantee the stability of this device through first handle bolt 32 on fixed establishment 3, and set up this device at the transformer substation fixed point, when disposable equipment goes wrong and leads to the short circuit, will make the electric current short circuit after it, then later bus current can be instantaneous increase, lead to the electric current grow on the second conducting block 8 like this, and under the effect of first magnet piece 16 and second magnet piece 17, make second conducting block 8 to the direction motion of resistance block 62, first magnet piece 16 and second magnet piece 17 one side relative can produce directional magnetic field, and will lead to the ampere power grow that first conducting block 5 received under the magnetic field when the electric current grow of second conducting block 8, it is scientific knowledge, do not do here in detail, wherein need to explain: the elastic potential energy of the first spring 11 is just equal to the ampere force applied to the second conductive block 8 in the initial state, when the current is increased, the ampere force is increased instantly, the second conductive block 8 is enabled to move forwards rapidly under the action of the ampere force, the moving direction of the second conductive block 8 is determined by the left-hand rule, the second conductive block is scientific knowledge and is not described in detail herein, the second conductive block 8 which moves forwards instantly moves between the two resistance blocks 62, at the moment, the current in the circuit is reduced through the action of the two resistance blocks 62, so that the use of the bus circuit can be guaranteed under the condition of a fault, namely, the diversion mechanism 6 is started when the fault occurs, the two resistance blocks 62 in the diversion mechanism 6 play a role in reducing the current, so that the current is in the using range, the normal use of the circuit is guaranteed when a worker maintains the circuit, wherein when the connecting plate 7 moves forwards, the adjusting rod 101 and the extending rod 12 also move, the extension rod 12 will be guaranteed the stability of extension rod 12 through the cooperation of stopper 141 with the bayonet socket after the forward motion, thereby guarantee the stability of connecting plate 7, guarantee the stability of being connected between first conducting block 5 and the resistance block 62 like this, and will make the briquetting 9 move forward through adjusting pole 101 when connecting plate 7 forward motion, thereby support the pressure and touch switch 20, then touch switch 20 will take place the buzzing sound through bee calling organ 23, thereby remind the equipment in the operating personnel transformer substation to break down, and then inform the maintenance personal to maintain.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (9)

1. A substation bus override trip alarm system comprises a bus base (1), wherein both sides of the bus base (1) are fixedly connected with buses (2), and the substation bus override trip alarm system is characterized in that the outer side wall of the bus base (1) is fixedly connected with four fixing mechanisms (3) which are arranged in 2 x 2;
the inner bottom of the bus base (1) is fixedly connected with two mounting plates (4), one side of each of the two mounting plates (4) opposite to each other is provided with a mounting groove, the inner side wall of each mounting groove is fixedly connected with a first conductive block (5), the bus (2) is fixedly connected with a flow guide mechanism (6), the tops of the two mounting plates (4) are provided with a same connecting plate (7), two ends of the bottom of each connecting plate (7) are respectively in sliding connection with the tops of the mounting plates (4), the bottom of each connecting plate (7) is fixedly connected with a second conductive block (8), and two sides of each second conductive block (8) are respectively in contact with the outer side walls of the two first conductive blocks (5);
one side of the connecting plate (7) is connected with the inner side wall of the bus base (1) through a first spring (11), two ends of the first spring (11) are fixedly connected with the inner side wall of the bus base (1) and the outer side wall of the connecting plate (7) respectively, one side, far away from the first spring (11), of the connecting plate (7) is fixedly connected with an extension rod (12), one end, far away from the connecting plate (7), of the extension rod (12) penetrates through the inner side wall of the bus base (1) and extends outwards, the outer side wall of the bus base (1) is fixedly connected with a fixed block (13), and the extension rod (12) is connected with the fixed block (13) through a limiting mechanism (14);
a containing groove is formed in the inner side wall of the bus base (1), a pressing block (9) is arranged in the containing groove, the outer side wall of the connecting plate (7) is connected with the pressing block (9) through a connecting mechanism (10), and an alarm device is fixedly mounted on the bus base (1);
the top of generating line base (1) is through a plurality of second handle bolt fixedly connected with top cap (15), the first magnet piece of interior bottom fixedly connected with (16) of generating line base (1), the bottom fixedly connected with second magnet piece (17) of top cap (15), just second magnet piece (17) are located first magnet piece (16) directly over, the opposite one side magnetism of first magnet piece (16) and second magnet piece (17) is opposite.
2. A substation bus override trip alarm system according to claim 1, wherein the fixing mechanism (3) comprises a mounting block (31) fixedly connected to an outer side wall of the bus bar base (1), and a first handle bolt (32) is threadedly connected to the mounting block (31).
3. The substation bus override trip alarm system according to claim 1, wherein the diversion mechanism (6) comprises branch lines (61) fixedly connected to the bus (2), a placing groove is formed in one side, opposite to the two mounting plates (4), of each mounting plate, a resistor block (62) is fixedly connected to the inner side wall of each placing groove, and one end, far away from the bus (2), of each branch line (61) is fixedly connected with the resistor block (62).
4. The substation bus override trip alarm system according to claim 1, wherein T-shaped sliders are fixedly connected to both ends of the bottom of the connecting plate (7), and sliding grooves corresponding to the sliders are formed in the top of the mounting plate (4).
5. The substation bus override trip alarm system according to claim 1, wherein connection grooves are formed in two sides of the second conductive block (8), conductive balls (18) are arranged in the connection grooves, and outer side walls of the conductive balls (18) are in contact with inner side walls of the connection grooves and outer side walls of the first conductive blocks (5).
6. The substation bus override trip alarm system according to claim 1, wherein a through hole corresponding to the extension rod (12) is formed in an inner side wall of the bus base (1), and a rubber sealing layer is fixedly bonded to the inner side wall of the through hole.
7. The substation bus override trip alarm system according to claim 1, wherein the limiting mechanism (14) comprises a limiting block (141), a fixing groove corresponding to the limiting block (141) is formed in an outer side wall of the extension rod (12), a second spring (142) is fixedly connected to an inner bottom of the fixing groove, one end, far away from the inner bottom of the fixing groove, of the second spring (142) is fixedly connected with an end of the limiting block (141), and a bayonet corresponding to the limiting block (141) is formed in the fixing block (13).
8. The substation bus override trip alarm system according to claim 1, wherein the connection mechanism (10) comprises an adjusting rod (101) which is obliquely arranged, the outer side wall of the connection plate (7) and the pressing block (9) are both fixedly connected with a U-shaped mounting seat (102), the inner side wall of the mounting seat (102) is fixedly connected with a fixed shaft, and the end of the adjusting rod (101) is rotatably sleeved on the outer side wall of the fixed shaft.
9. The substation bus override trip alarm system according to claim 1, the alarm device comprises a battery stabilizing groove arranged at the top of the bus base (1), a battery (19) is arranged in the battery stabilizing groove, two ends of the battery stabilizing groove are fixedly connected with elastic conducting strips, two ends of the battery (19) are respectively contacted with the two elastic conducting strips, the inner bottom of the containing groove is fixedly connected with a touch switch (20), and the input end of the touch switch (20) is connected with one elastic conducting strip through a first lead (21), the output end of the touch switch (20) is electrically connected with a buzzer (23) through a second lead (22), and the buzzer (23) is fixedly connected to the inner side wall of the bus base (1), and the output end of the buzzer (23) is electrically connected with the other elastic conducting strip.
CN201910273951.9A 2019-04-08 2019-04-08 Substation bus override trip alarm system Expired - Fee Related CN109872512B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910273951.9A CN109872512B (en) 2019-04-08 2019-04-08 Substation bus override trip alarm system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910273951.9A CN109872512B (en) 2019-04-08 2019-04-08 Substation bus override trip alarm system

Publications (2)

Publication Number Publication Date
CN109872512A CN109872512A (en) 2019-06-11
CN109872512B true CN109872512B (en) 2020-07-31

Family

ID=66922218

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910273951.9A Expired - Fee Related CN109872512B (en) 2019-04-08 2019-04-08 Substation bus override trip alarm system

Country Status (1)

Country Link
CN (1) CN109872512B (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH490942A (en) * 1968-05-13 1970-05-31 Heberlein & Co Ag Cutting device for thread, rope and wire-shaped cut material
US6380862B1 (en) * 2000-10-13 2002-04-30 Eaton Corporation Electrical distribution panel employing a surge protector
CN201197076Y (en) * 2007-10-16 2009-02-18 陈泉源 Relay power supply overload apparatus
CN101651323B (en) * 2009-06-03 2012-03-14 东北大学 Method, device and application for self-recovery current limiting and circuit breaking by using conductive fluid and magnetic fluid
US9478977B2 (en) * 2014-05-27 2016-10-25 Skyworks Solutions, Inc. Overcurrent protection device and overcurrent protection method for electronic modules
CN205945491U (en) * 2016-01-06 2017-02-08 张庄禹 Overload protector
CN206884236U (en) * 2017-06-30 2018-01-16 湖州南浔亨力木制品厂 Electromagnetic type sheet material cold press

Also Published As

Publication number Publication date
CN109872512A (en) 2019-06-11

Similar Documents

Publication Publication Date Title
EP2863404B1 (en) Rapid tri-state bidirectional switching device
CN109872512B (en) Substation bus override trip alarm system
CN201069718Y (en) Bipolar micro-switch
CN204885053U (en) Circuit breaker operating device's control mechanism
CN207690739U (en) A kind of buckle releaser of miniature circuit breaker
CN204516654U (en) A kind of novel disconnecting link type twin-power switch
CN203859080U (en) Convenient intelligent air circuit breaker
CN202585277U (en) Breaker under-voltage tripper with state indication function
CN203103249U (en) Leakage protection socket tripping device
CN206619559U (en) For the electric current jumper that air switch is online and connects and changes
CN201478808U (en) Protective device capable of adjusting control voltage
CN204088994U (en) A kind of new design moveable high-voltage switchgear
CN221239564U (en) Miniature circuit breaker
CN207852571U (en) First and second fusion intelligent vacuum circuit breaker
CN204706952U (en) Based on the frame-type circuit breaker of IPV6 intelligence MANET wireless telecommunications
CN220022385U (en) Vehicle and storage battery depletion prevention circuit and energy storage device thereof
CN210866024U (en) Indoor direct current grounding switch
CN203367184U (en) Hand-operated emergency brake separating device
CN203504141U (en) Low power consumption outage protection switch
CN208315476U (en) A kind of safe and reliable and easy-to-assemble breaker
CN217956377U (en) High-voltage control cabinet with short circuit alarming function
CN208271813U (en) A kind of omnipotent breaker being internally integrated divide-shut brake control loop
CN211789610U (en) Small bus connecting device of high-voltage switch cabinet
CN215185833U (en) A shutting on-load voltage regulation device for main transformer overload
CN209232569U (en) A kind of connection structure of Combined air formula loaded switch and dry-type transformer

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200731

Termination date: 20210408

CF01 Termination of patent right due to non-payment of annual fee