CN203690775U - Marine medium-voltage power distribution device - Google Patents
Marine medium-voltage power distribution device Download PDFInfo
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- CN203690775U CN203690775U CN201320814277.9U CN201320814277U CN203690775U CN 203690775 U CN203690775 U CN 203690775U CN 201320814277 U CN201320814277 U CN 201320814277U CN 203690775 U CN203690775 U CN 203690775U
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- 238000009826 distribution Methods 0.000 title claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000001012 protector Effects 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000005315 distribution function Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 20
- 238000012423 maintenance Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000002633 protecting effect Effects 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model relates to a marine medium-voltage power distribution device, wherein the front upper part of a cabinet body is internally provided with a small busbar chamber. An instrument chamber is arranged below the small busbar chamber. A handcart chamber and a busbar chamber are sequentially arranged below and behind the instrument chamber. Above the busbar chamber, a pressure release channel is arranged behind the small busbar chamber. The bottom of the cabinet body is internally provided with a cable chamber. Inside the handcart chamber, a vacuum breaker and a handcart are arranged by means of tracks and a guide unit. One end of the vacuum breaker is connected with a main busbar, and the other end of the vacuum breaker is connected with a power supply branch busbar through a current transformer. The main busbar, the power supply branch busbar, and a busbar chamber voltage transformer/buscouple grounding switch are arranged in the busbar chamber. A mounting plate for mounting components is arranged in the instrument chamber. A cable chamber grounding switch, an electromagnetic lock, a mechanical interlocking unit, a zero-sequence current transformer, the current transformer and a busbar chamber voltage transformer are arranged in the cable chamber. According to the technical scheme of the utility model, by means of the device, the marine medium-voltage power distribution function is realized. Meanwhile, the device is compact in structure. The size of the device is effectively reduced and the cost of the device is lowered. Moreover, the utilization rate of the limited space in a ship is improved.
Description
Technical field
The utility model relates to a kind of marine medium-voltage power distribution equipment, especially a kind of power distribution equipment that is applicable to the reception of middle pressure Ship Power Station and distributes electric energy.
Background technology
Along with improving constantly of marine electrical equipment level, particularly applying of integrated power system, various new devices start to be widely used in large ship and boats and ships ocean engineering field, especially adopt the boats and ships of electric propulsion and dynamic positioning for those, its propeller power is up to the more than 80% of Ship Power Station total capacity, at present a lot of large ship electric power system total capacities have reached tens megawatts, tens megawatts megawatts even up to a hundred.Be subject to the impact of the factors such as the breaking capacity, generating set single-machine capacity, generating set capacity, current-carrying capacity of cable of low-voltage circuit breaker short circuit current, traditional low-voltage power supply mode can not meet the demands, and intermediate voltage electric power system will become the developing direction of following Ship Electrical Power System.
Medium-voltage distribution appts is as one of important component part of large ship and ocean engineering corollary equipment, and it is to be transported in electric installation role self-evident, and its key technology is also one of bottleneck factor of restriction large ship power station development.In recent years, taking large ocean move drilling platforms, Floating Production storage system, ocean engineering operation ship and auxiliary ship station as the ocean development device of representative be constantly subject to market development actual needs and country attention.Boats and ships medium-voltage distribution appts is one of important developing direction in domestic large ship and Offshore Platform Power Station coordinative composition of equipments field, is also the bottleneck of these ocean development device development of restriction from domestic real current situation.Therefore, at present, the marine medium-voltage power distribution equipment in China's exploitation with independent intellectual property right has great importance.
Existing medium-voltage distribution appts design mainly contains following characteristics:
(1) current; the multiple power stations of general employing, large ship power station; form ring network power supply mode; under most of operating modes, need the parallel operation of multiple power stations, in mesohigh power station, be generally all furnished with mother screen (cross-over connection screen) and measure screen; its mother screen bus-bar room is installed main bus bar; play the effect that connects each function screen, and measure screen, current transformer, voltage transformer etc. are installed, play measuring and protecting effect.Because large ship equipment is more, interior compartment limited space, and two screens take very large space, and the integral layout of hull is brought to very large inconvenience;
(2) interlock of the marine medium-voltage power distribution equipment using at present, complex operation, interlock program is clear not, and the reliability of its interlock method is worth deep thinking.
(3) control room of the marine medium-voltage power distribution equipment using at present, due to limited space and components and parts more, internal placement compares comparatively dense, be unfavorable for secondary cable wiring, control circuit wiring complexity, debugging, maintenance inconvenience, the risk that is prone to accidents, reduces its reliability.
At present, along with Ship Power Station capacity constantly increases, mesohigh electric power system has obtained being widely used on boats and ships, especially on large ship and ocean engineering ship, mostly has multiple power stations, conventionally use mother screen to carry out cross-over connection connection, realize the function of two even multiple power stations parallel connections.The marine medium-voltage power distribution equipment mother screen (cross-over connection screen) now using; bus-bar room is mainly used in installing main bus bar and branch bar; it conventionally can increase by a screen measurement screen and realize the measuring and protecting function that mother is shielded, and two screens make jointly for realizing the functions such as connection, measuring and protecting.The utility model is considered large ship main distribution board chamber limited space, cannot install and measure screen in particular cases, according to the demand of actual items, in medium-voltage distribution appts bus-bar room, can install bus grounding switch or voltage transformer additional, fully take into account in order to ensure electrical safety performance at this, in the time of design bus-bar potential transformer or mother earthed switch, make its requirement that meets specification median generatrix chamber electric clearance and creepage distance, in operation, can adopt mechanical interlocking and electrical interlock mode to ensure the electrical safety in the operating process of mother earthed switch.The control room of the marine medium-voltage power distribution equipment in this patent adopts can be independently, modularized design, not only space increases, and can adjust according to actual items demand the internal placement of this module, facilitate the wiring of secondary cable and instrument, and the design of reliable power supply can be provided; In addition, the interlocks such as bus-bar room earthed switch operation locking device, handcart chamber interlock, cable chamber door and earthed switch operation are adopted, for operating personnel provide the operational environment of a safety.Design in meeting the due function of marine medium-voltage power distribution equipment by this patent, provide a kind of size relatively less, effectively conserve space, solves the problems such as space layout.
Summary of the invention
The utility model is that a kind of marine medium-voltage power distribution equipment will be provided, be mainly used in large ship and ocean engineering ship power station, in meeting the requirement of marine medium-voltage power distribution equipment particularity, adopt the design of optimizing cabinet body structure, make it have compact conformation, small footprint modular, can effectively reduce volume, reduce costs, improve the utilance of the boats and ships confined space.
For achieving the above object, the technical solution of the utility model is: a kind of marine medium-voltage power distribution equipment, comprise cabinet, little bus-bar room, control room, handcart chamber, vacuum circuit-breaker or vacuum contactor, electromagnetic lock, cable vault's voltage transformer, zero sequence current mutual inductor mounting bracket, grounding connection row, cable vault, cable vault's earthed switch, cable connects row, current transformer, bus-bar room, bus-bar room voltage transformer, power supply branch bar, pressure release passage, control room's panel, main bus bar, handcart chamber panel, medium-voltage distribution plate interlock, cable vault's panel, connect row, bottom channel-section steel, be characterized in: in cabinet front upper part, be provided with little bus-bar room, below little bus-bar room, be provided with control room, below control room and set gradually handcart chamber and bus-bar room below, in bottom of cabinet bulk, be provided with cable vault, handcart is indoor installs vacuum circuit-breaker or vacuum contactor and handcart by track and guider, between the main switch acting arm of vacuum circuit-breaker or vacuum contactor and stationary contact arm, valve mechanism is installed, handcart is provided with three positions handcart is indoor: service position, test position, remove position, vacuum circuit-breaker or vacuum contactor one end connect main busbar, and the other end connects power supply branch bar by current transformer, bus indoor location main bus bar, power supply branch bar and bus-bar room voltage transformer or mother earthed switch, the mounting panel for mounting related components is equipped with inside in control room, cable vault's earthed switch, electromagnetic lock, mechanical interlocks, current transformer, cable vault's voltage transformer are installed in cable vault.
EMS and control module are also installed in control room, and in ensureing cable vault's front lower chamber electric clearance and creepage distance, control room arranges terminal board and the components and parts for secondary connection.In bus-bar room, install mother earthed switch and voltage transformer additional.Main busbar is rectangle busbar or D type busbar.
Cabinet top is respectively equipped with three pressure relief plates that the pressure release passage of handcart chamber, little bus-bar room, cable vault's internal arc is provided.
Secondary bus in little bus-bar room need to be arranged on top, control room according to user.
Control room's erecting of panel digital comprehensive protector, various instrument, indicator light and button and selector switch.
Above the panel of handcart chamber, be provided with the handle hole of observation window, the emergent switching-off device of vacuum circuit-breaker and mechanical interlocks.
Above cable vault's panel, establish the handle hole of observation window, medium-voltage distribution appts nameplate and mechanical interlocks.
Bottom of cabinet bulk is equipped with other mounting meanss such as channel-section steel, vibration absorber, and channel-section steel and grounding connection row is connected, and by connection arrange and hull altogether.
This patent mainly has following characteristics:
1. the marine medium-voltage power distribution equipment in this patent adopts the form of middle metal armouring closed switch cabinet; cabinet body structure utilizes Digit Control Machine Tool to process; adopt the processing technology of double bending; strengthen intensity and the rigidity of cabinet part; its sheet metal by ground connection is divided into 4 compartments; be respectively: control room, handcart chamber, bus-bar room, cable vault, top, each chamber is provided with pressure relief channels, is used for carrying out arc protection.And adopted the interlocks such as bus-bar room earthed switch operation locking device, handcart chamber interlock, cable chamber door and earthed switch operation, by mechanical interlocking and the electrical interlock mode that combines, for operating personnel provide the operational environment of a safety.
The control room of the marine medium-voltage power distribution equipment in this patent adopt can be independently, modularized design, not only can increase and effectively utilize space, but also can adjust according to actual items demand the internal placement of this module, facilitate the wiring of secondary cable and instrument, and the operating efficiency that increases factory is cost-saving, can provide the design of reliable power supply;
3. the bus-bar room of the marine medium-voltage power distribution equipment of this patent can install mother earthed switch and voltage transformer design additional, can realize correlation function by independent 1 screen, completes the design of medium-voltage distribution appts mother screen (cross-over connection screen) power supply;
4. the marine medium-voltage power distribution equipment in this patent considers that when hull tilts, the tactile wall of vacuum circuit-breaker sound should keep reliable contact.Adopt and in dynamic and static contact, respectively put two die methods, utilize the centering technology of mould and mould to solve the design of dynamic and static contact centering problem.
The utlity model has following beneficial effect:
1. the marine medium-voltage power distribution equipment in this patent; independent 1 screen of mother screen (cross-over connection screen); in completing the functions such as medium-voltage distribution appts mother screen (cross-over connection screen) measuring and protecting; can reduce boats and ships main distribution board spatial volume; the in the situation that of large ship and ocean engineering ship limited space, improve boats and ships main distribution board chamber space availability ratio.
2. adopt can independent, modular design the marine medium-voltage power distribution equipment control room in this patent, the control modules such as EMS can be arranged in this chamber, take if desired safeguard measure and in ensureing cable vault's front lower chamber electric clearance and creepage distance, can arrange that terminal board and components and parts carry out secondary connection, can improve cabinet control room space utilization efficiency, save certain cost, and can be according to actual items demand, adjusting module is arranged flexibly, have easy-to-connect, control circuit is simple, and maintenance is convenient, reduce accident risk, improve reliability;
3. the marine medium-voltage power distribution equipment in this patent, the mechanical interlockss such as bus-bar room earthed switch operation locking device, handcart chamber interlock, cable chamber door and earthed switch operation are adopted, the mode combining by mechanical interlocking and electrical interlock, according to the particularity of Offshore Platform marine medium-voltage power distribution equipment, embody the requirement to operator safety, also embodied the requirement to electric power netting safe running, the design of its interlock, have that device work is simple and reliable, interlock program is clear, interlock is comprehensive.
The utility model adopts optimizes cabinet body structure design, consider large ship main distribution board chamber limited space, cannot install and measure screen in particular cases, in medium-voltage distribution appts bus-bar room, can install bus grounding switch and voltage transformer additional, in order to ensure electrical safety performance, the design of mother earthed switch has taken into full account the requirement of electric clearance and creepage distance in bus-bar room.In operation, the mode that adopts mechanical interlocking and electrical interlock to combine ensures the electrical safety in the operating process of mother earthed switch.There is a whole set of marine medium-voltage power distribution equipment volume of minimizing, reduce costs, make full use of the limited space of large ship and ocean engineering ship.The marine medium-voltage power distribution equipment control room of this patent can be independently, modularized design has factory's easy-to-connect, circuit is simple, maintenance is convenient, reduces accident risk, improves reliability.In addition, the design of its cabinet mechanical interlocks, has that device work is simple and reliable, interlock program is clear, and interlock is comprehensive, can ensure to greatest extent staff's safety.
Brief description of the drawings
Fig. 1 is structural front view of the present utility model;
Fig. 2 is the left view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As Fig. 1, shown in 2, marine medium-voltage power distribution equipment of the present utility model, comprise cabinet 1, little bus-bar room 2, control room 3, handcart chamber 4, vacuum circuit-breaker or vacuum contactor 5, electromagnetic lock 6, cable vault's voltage transformer 7, zero sequence current mutual inductor mounting bracket 8, grounding connection row 9, cable vault 10, cable vault's earthed switch 11, cable connects row 12, current transformer 13, bus-bar room 14, bus-bar room voltage transformer 15, power supply branch bar 16, pressure release passage 17, control room's panel 18, main bus bar 19, handcart chamber panel 20, medium-voltage distribution plate interlock 21, cable vault's panel 22, connect row 23, bottom channel-section steel 24.
Marine medium-voltage power distribution equipment of the present utility model is mainly divided into cable vault, handcart chamber, bus-bar room, control room, and its internal component mainly contains the components and parts compositions such as main busbar, power supply branch busbar, vacuum circuit-breaker, electrification display, bus-bar room earthed switch, digital comprehensive relay protection device, cable vault's earthed switch, zero sequence current mutual inductor, current transformer, voltage transformer.
The each chamber of the marine medium-voltage power distribution equipment function of the utility model/utility model patent:
The bottom of cable vault 10 has hole current supply cable inlet wire and connects, cable can be connected by zero sequence current mutual inductor row 12 and connect with cable, on the plate that cable vault 10 is anterior and handcart chamber 4 is separated by, have door, and mechanical interlock mechanism (cable vault's earthed switch) 11 and electromagnetic lock 6 be installed, this uses when front maintenance of plate is provided, and current transformer 13, voltage transformer 7 and zero sequence current mutual inductor etc. also can be installed in inside.In the time that cable vault is uncharged, electromagnetic lock is threaded off, and door can be opened, and now can carry out associative operation, otherwise cable chamber door is not opened, protection operating personnel's safety.
The interior installation vacuum circuit-breaker in handcart chamber 4 or vacuum contactor 5 and handcart, adopt middle structure, and specific track and guider be installed, and slides and work indoor for vacuum circuit-breaker handcart.Between main switch acting arm and stationary contact arm, valve mechanism is installed, handcart has 3 positions in handcart chamber: service position, test position, remove position.By designing tight five-prevention interlocking device, all operations of interlock 21 rival car chambers, handcart chamber has all been realized door-closing operation, has ensured to greatest extent operating personnel's safety.
The main busbar 19 of the interior installation of bus-bar room 14, branch bar 16 and voltage transformer or mother earthed switch 15 etc.Main busbar is used for connecting each function screen, the main busbar of this patent marine medium-voltage power distribution equipment can adopt rectangle busbar, the busbar of D type busbar or other patterns carries out each function screen and connects, in the utility model/utility patent meets electric clearance and creepage distance in the time of design, make main busbar there is better dynamic thermal stability and solve the relevant issues such as temperature rise, consider boats and ships main distribution board chamber limited space, in the special circumstances that cannot install and measure screen, in bus-bar room, can install bus-bar earthing switch and voltage transformer 13 etc. additional, in order to ensure electrical safety performance, the design of bus-bar earthing switch or voltage transformer 13 has also taken into full account the requirement of electric clearance and creepage distance in bus-bar room.
In control room 3, there is the installation of mounting panel for components and parts, this control room adopts can be independently, modularized design, not only increase control room's useful space utilance, the hardware components of EMS also can be arranged in this chamber, being convenient to factory's wiring and user detects, keeps in repair, also can be flexible according to user's request internal placement, but also there is the processing factory of being convenient to assembling cabinet, improve working (machining) efficiency and the advantage such as cost-saving.
There are three pressure relief plates that the pressure release passage 17 of handcart chamber 4, little bus-bar room 2, cable vault's 10 internal arc is provided respectively at cabinet top, in order not allow the effect of gas to side plate and the long-term power of internal components, consider to adopt the connected mode of " tile " at the top of pressure release passage, allow gas slowly permeate away by junction, to avoid the further expansion of fault.
Little bus-bar room 2, secondary bus need to be arranged on top, control room according to user, flexible arrangement, installation and maintenance are convenient.
Control room's panel 18, can install digital comprehensive protector, various instrument, indicator light and button and choosing dress switch etc.
Cable vault's panel 22, has installed the handle hole of observation window, medium-voltage distribution plate nameplate and mechanical interlocks 21 etc. above
Adopted the interlocks 21 such as bus-bar room earthed switch operation locking device, handcart chamber interlock, cable chamber door and earthed switch operation, the mode combining by mechanical interlocking and electrical interlock, for operating personnel provide the operational environment of a safety.
In addition, this patent medium-voltage distribution plate bottom can adopt other mounting meanss such as bottom channel-section steel 24, vibration absorber, and the grounding connection row in each chamber receives the total grounding connection row 9 of cabinet, finally arranges 23 by connection and connects hull altogether.
The each indoor main components effect of marine medium-voltage power distribution equipment of the present utility model:
Vacuum circuit-breaker or vacuum contactor 5 one end connect main busbar 19, the other end connects power supply branch busbar 16 by current transformer 13, and power supply branch's busbar 16 or main busbar 19 are for connecting big capacity load, playing cross-over connection effect to distribution system power supply or two mothers screens of connection;
Ground connection when cable vault's earthed switch 11, electromagnetic lock 6 and mechanical interlocks 21 are mainly used in medium-voltage distribution appts maintenance, maintenance, ensures personal safety;
Zero sequence current mutual inductor, current transformer 13, cable vault's voltage transformer 7 bus-bar room voltage transformers 15, digital comprehensive protector are mainly used in measuring and protecting.
Claims (9)
1. a marine medium-voltage power distribution equipment, comprises cabinet (1), little bus-bar room (2), control room (3), handcart chamber (4), vacuum circuit-breaker or vacuum contactor (5), electromagnetic lock (6), cable vault's voltage transformer (7), zero sequence current mutual inductor mounting bracket (8), grounding connection row (9), cable vault (10), cable vault's earthed switch (11), cable connects row (12), current transformer (13), bus-bar room (14), bus-bar room voltage transformer (15), power supply branch bar (16), pressure release passage (17), control room's panel (18), main bus bar (19), handcart chamber panel (20), medium-voltage distribution plate interlock (21), cable vault's panel (22), connect row (23), bottom channel-section steel (24), it is characterized in that: in described cabinet (1) front upper part, be provided with little bus-bar room (2), little bus-bar room (2) is provided with control room (3) below, control room (3) sets gradually handcart chamber (4) and bus-bar room (14) below and below, and cabinet (1) is provided with cable vault (10) in bottom, in handcart chamber (4), by track and guider, vacuum circuit-breaker or vacuum contactor (5) and handcart are installed, between the main switch acting arm of vacuum circuit-breaker or vacuum contactor (5) and stationary contact arm, valve mechanism is installed, handcart is provided with three positions in handcart chamber (4): service position, test position, remove position, vacuum circuit-breaker or vacuum contactor (5) one end connects main busbar (19), and the other end connects power supply branch bar (16) by current transformer (13), main bus bar (19), power supply branch bar (16) and bus-bar room voltage transformer or mother earthed switch (15) are installed in bus-bar room (14), and the mounting panel for mounting related components is equipped with in inside in control room (3), cable vault's earthed switch (11), electromagnetic lock (6), mechanical interlocks (21), current transformer (13), cable vault's voltage transformer (7) are installed in cable vault (10).
2. marine medium-voltage power distribution equipment according to claim 1, is characterized in that: bus-bar room installs mother earthed switch or voltage transformer additional in (14).
3. marine medium-voltage power distribution equipment according to claim 1, is characterized in that: described main busbar (19) is rectangle busbar or D type busbar.
4. marine medium-voltage power distribution equipment according to claim 1, is characterized in that: described cabinet (1) top is respectively equipped with three pressure relief plates that the pressure release passage (17) of handcart chamber (4), little bus-bar room (2), cable vault (10) internal arc is provided.
5. marine medium-voltage power distribution equipment according to claim 1, is characterized in that: the secondary bus in described little bus-bar room (2) need to be arranged on top, control room (3) according to user.
6. marine medium-voltage power distribution equipment according to claim 1, is characterized in that: described control room panel (18) is installed digital comprehensive protector, various instrument, indicator light and button and selector switch.
7. marine medium-voltage power distribution equipment according to claim 1, is characterized in that: described handcart chamber panel (20) is provided with the handle hole of observation window, the emergent switching-off device of vacuum circuit-breaker and mechanical interlocks (21) above.
8. marine medium-voltage power distribution equipment according to claim 1, is characterized in that: described cable vault panel (22) is established the handle hole of observation window, medium-voltage distribution appts nameplate and mechanical interlocks (21) above.
9. marine medium-voltage power distribution equipment according to claim 1, is characterized in that: channel-section steel (24), vibration absorber are equipped with in described cabinet (1) bottom, and channel-section steel (24) is connected with grounding connection row (9), and arranges (23) and hull altogether by connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320814277.9U CN203690775U (en) | 2013-12-12 | 2013-12-12 | Marine medium-voltage power distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320814277.9U CN203690775U (en) | 2013-12-12 | 2013-12-12 | Marine medium-voltage power distribution device |
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| Publication Number | Publication Date |
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| CN203690775U true CN203690775U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320814277.9U Expired - Fee Related CN203690775U (en) | 2013-12-12 | 2013-12-12 | Marine medium-voltage power distribution device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633575A (en) * | 2013-12-12 | 2014-03-12 | 中国船舶重工集团公司第七〇四研究所 | Marine medium-voltage power distribution unit |
| CN104300370A (en) * | 2014-11-11 | 2015-01-21 | 国家电网公司 | Improved 10kV high-voltage switch cabinet cable chamber misoperation-preventive locking method |
| CN107370033A (en) * | 2017-09-12 | 2017-11-21 | 镇江船舶电器有限责任公司 | Multifunctional ship medium voltage power distribution cabinet |
| CN108736369A (en) * | 2017-04-18 | 2018-11-02 | 北海银河开关设备有限公司 | A kind of medium pressure gas insulation looped network bus section cabinet |
| CN109687334A (en) * | 2019-01-01 | 2019-04-26 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of marine medium-voltage power distribution unit |
| CN110247314A (en) * | 2019-07-10 | 2019-09-17 | 安徽华然电力设备有限公司 | A kind of arc extinction cabinet and its Intelligent control device |
-
2013
- 2013-12-12 CN CN201320814277.9U patent/CN203690775U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633575A (en) * | 2013-12-12 | 2014-03-12 | 中国船舶重工集团公司第七〇四研究所 | Marine medium-voltage power distribution unit |
| CN103633575B (en) * | 2013-12-12 | 2016-07-06 | 中国船舶重工集团公司第七0四研究所 | Marine medium-voltage power distribution unit |
| CN104300370A (en) * | 2014-11-11 | 2015-01-21 | 国家电网公司 | Improved 10kV high-voltage switch cabinet cable chamber misoperation-preventive locking method |
| CN108736369A (en) * | 2017-04-18 | 2018-11-02 | 北海银河开关设备有限公司 | A kind of medium pressure gas insulation looped network bus section cabinet |
| CN107370033A (en) * | 2017-09-12 | 2017-11-21 | 镇江船舶电器有限责任公司 | Multifunctional ship medium voltage power distribution cabinet |
| CN109687334A (en) * | 2019-01-01 | 2019-04-26 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of marine medium-voltage power distribution unit |
| CN110247314A (en) * | 2019-07-10 | 2019-09-17 | 安徽华然电力设备有限公司 | A kind of arc extinction cabinet and its Intelligent control device |
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