CN203813282U - Transformer station - Google Patents

Transformer station Download PDF

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Publication number
CN203813282U
CN203813282U CN201420161203.4U CN201420161203U CN203813282U CN 203813282 U CN203813282 U CN 203813282U CN 201420161203 U CN201420161203 U CN 201420161203U CN 203813282 U CN203813282 U CN 203813282U
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CN
China
Prior art keywords
casing
transformer station
primary equipment
secondary device
xiamen
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 - Lifetime
Application number
CN201420161203.4U
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Chinese (zh)
Inventor
周长宝
范祎
胡伟
张敏
程传更
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.)
CHINA CAMC ENGINEERING Co Ltd
Original Assignee
CHINA CAMC ENGINEERING Co Ltd
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
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Priority to CN201420161203.4U priority Critical patent/CN203813282U/en
Application granted granted Critical
Publication of CN203813282U publication Critical patent/CN203813282U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model discloses a transformer station. The transformer station comprises multiple primary devices and multiple secondary devices and further comprises a primary device cabinet and a secondary device cabinet, wherein the primary device cabinet is internally provided with multiple mounting modules; the secondary device cabinet is also internally provided with multiple mounting modules, and each mounting module is internally provided with one different secondary device; and each of the primary device cabinet and the secondary device cabinet is provided with a door(s) corresponding to one or more mounting modules, and the top board of the primary device cabinet can be opened. The two cabinets are provided with ventilation channels internally, and dehydrating devices are arranged in the ventilation channels. According to the utility model, by virtue of using the cabinets to load the primary devices and the secondary devices, the electrical performance of electrical components and parts used for power transformation under the outdoor environment is prevented from being affected by the natural environment.

Description

A kind of transformer station
Technical field
The utility model relates to power technology field, particularly relates to a kind of transformer station.
Background technology
Transformer station is the assembly place of transmission and disttrbution in electric power system, is voltage of transformation, acceptance and distribution electric energy, the flow direction of controlling electric power and the electric power facility of adjusting voltage, and it gets up the grid contact of each step voltage by its transformer.
Transformer station comprises the primary equipments (being heavy current installation) such as transformer, instrument transformer and switchgear; and the secondary device of protective device, measure and control device and communication equipment; general; described primary equipment and secondary device are unenclosed construction; so cause some problems, being for example exposed to outdoor wet environment affects the performance of the electrical connection of some components and parts.
Utility model content
In view of this, the utility model is to provide a kind of transformer station, and primary equipment and secondary device are installed in respectively in different chests, reduces the impact of ash on equipment electrical property that fall.
The utility model is achieved in that
A kind of transformer station, comprises multiple primary equipments and multiple secondary device, also comprises primary equipment casing and secondary device casing, wherein:
Described primary equipment casing 1 comprises multiple installation modules, is provided with different primary equipments in each installation module, and on each installation module, is provided with the terminal board for being connected with other installation modules;
Described secondary device casing comprises multiple installation modules, is provided with different secondary devices in each installation module, and on each installation module, is provided with the terminal board for being connected with other installation modules;
The door that is provided with corresponding one or more installation module in described primary equipment casing and secondary device casing, the top board of described primary equipment casing is flexibly connected with described primary equipment casing;
On described secondary device casing, comprise car door, described car door comprises:
Near the visiting and be positioned at the Xiamen of visiting below of roof box, described in visit and comprise opener;
Xiamen and box bottom pivot joint;
Support portion, connect box base plate also closes on Xiamen and casing articulated section, and base and the described box bottom keeping parallelism of the Xiamen in opening are supported in support portion and described base plate pivot joint upon deployment;
Be arranged on Xiamen near visiting place, with the opening and closing part of connecting lateral plate realization locking or unlatching Xiamen.
Preferably, in such scheme, described primary equipment box inside is provided with absorbing material layer or the screen for electromagnetic radiation shielding.
Preferably, in such scheme, described absorbing material layer and boxboard are bonding, and it is provided with multiple absorbers on the side of box house.
Preferably, in such scheme, described secondary device box inside is provided with insulating.
Preferably, in such scheme, the connection between terminal board is undertaken by hub.
Preferably, in such scheme, described primary equipment casing and secondary device casing below are provided with support platform.
Preferably, in such scheme, support platform is electric insulation platform.
Preferably, in such scheme, primary equipment casing arranged outside have there is stretching structure connect sudden strain of a muscle bar, connect the bottom of dodging bar and be electrically connected with the grounding device that is embedded in underground through support platform.
Preferably, in such scheme, the installation module of described primary equipment casing comprises: the instrument transformer, switchgear and the lightning arrester that are connected with described transformer;
In described primary equipment casing, secondary device casing, air pipe is also installed, in described air pipe, there is dry dehumidification device;
The extinguishing device that sprays dry powder gas after induction smog, flame is also installed in described primary equipment casing, secondary device casing.
Preferably, in such scheme, the boxboard of described primary equipment casing and secondary device casing is aluminium sheet.
Compared with prior art, the utility model by different casings, loads primary equipment and secondary device, can reduce natural environment to being exposed to the impact of electrical property of outdoor electric component.Can prevent the infringement of natural climate by casing, particularly, under moist environment, realize the dry of transformer by the wire of fuel tank, improve the insulating properties of electric device under wet environment.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
The structural representation of a kind of transformer station that Fig. 1 provides for the utility model one embodiment;
The middle structural representation of working in a kind of transformer station that Fig. 2 provides for the utility model one embodiment;
The structural representation of the transformer in a kind of transformer station that Fig. 3 provides for the utility model one embodiment;
The structural representation of the voltage transformer in a kind of transformer station that Fig. 4 provides for the utility model one embodiment;
The structural representation of the air circuit in a kind of transformer station that Fig. 5 provides for the utility model one embodiment;
In a kind of transformer station that Fig. 6 provides for another embodiment of the utility model, the structural representation of casing;
The structural representation of a kind of transformer station that Fig. 7 provides for the another embodiment of the utility model;
The structural representation that in a kind of transformer station that Fig. 8 provides for the other embodiment of the utility model, casing is visited;
Fig. 9 is the structural representation of visiting while opening of the door shown in Fig. 8;
Figure 10 is the structural representation of the upper and lower door of the door shown in Fig. 8 while opening.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1, the structure of a kind of transformer station providing for the utility model, as shown in the figure, described transformer station comprises primary equipment casing 1 and secondary device casing 2, in described primary equipment casing 1, load multiple primary equipment (not shown)s, in described secondary device casing 2, load multiple secondary device (not shown)s.
Described primary equipment casing 1 comprises multiple installation modules, is provided with different primary equipments in each installation module, for example transformer, instrument transformer and switchgear, and on each installation module, be provided with the terminal board for being connected with other installation modules.
Described secondary device casing 2 comprises multiple installation modules, is provided with different secondary devices in each installation module, for example protective device, measure and control device and communication equipment, and on each installation module, be provided with the terminal board for being connected with other installation modules.
The door that is provided with corresponding one or more installation module in described primary equipment casing 1 and secondary device casing 2, described primary equipment roof box can be opened, as shown in Figure 2.
Described primary equipment is also referred to as main equipment, refer generally to be directly used for to accept with distribute electric energy and with change electric energy voltage relevant equipment, owing to mostly bearing high voltage, so also belong to High-Voltage Electrical Appliances or equipment.It generally comprises transformer, instrument transformer, circuit breaker, contactor, reactor, switchgear and lightning arrester (also referred to as arrester) etc., for box mini-plant, also can only only have transformer and instrument transformer, switchgear.Those skilled in the art can need to select part or all of EM equipment module wherein according to scene, if owing to selecting and selecting which EM equipment module to belong to prior art, all do not introduced one by one, only introduce some main working equipments below:
Transformer is the capital equipment of transformer station, can be divided into two winding transformer, three-winding transformer and autotransformer, and voltage height is directly proportional to umber of turn, and electric current is inversely proportional to umber of turn.In addition, transformer can be divided into step-up transformer and step-down transformer by effect, and the former is for electric power system sending end transformer station, and the latter is for receiving end transformer station.The voltage of power transformation device and the voltage of electric power system adapt, can be by switching branch joint to keep qualified voltage in different load situation.Conventionally transformer comprises device body, fuel tank, cooling device, protective device and outgoing line device; wherein; described device body is made up of iron core, winding, insulation and lead-in wire (comprising regulator and lead-in wire folder etc.); described fuel tank is made up of oil tank body and annex (comprising throttle lock, dolly etc.); installation module in described primary equipment casing comprises transformer; the tank surface of described transformer is wound around temperature-sensitive wire, and described temperature-sensitive wire connects warning device, temperature control modules.
After temperature raises, the short circuit of temperature-sensitive wire, warning device output alarm signal, the air-conditioning output cold air in simultaneous temperature control module control casing, reduces temperature in casing.
Automatic fire extinguisher is also installed in casing, and when occurring flue gas, flame, automatic fire extinguisher starts, eruption dry-chemical fire extinguishing gas.
Described cooling device comprises radiator and cooler, and described protective device comprises oil conservator, dehydrating breather, oil filter, temperature element, Buchholz relay and pressure relief vent etc., and described outgoing line device can be sleeve pipe.Described transformer can be oil-immersed power transformer, its a kind of structure as shown in Figure 3, comprise bushing 0101, shunting switch 0102, low-tension bushing 0103, Buchholz relay 0104, pressure relief vent (being explosion stack or pressure relieving valve) 0105, oil conservator 0106, oil level indicator 0107, dehydrating breather 0108, radiator 0109, nameplate 0110, ground connection a kind of cicada mentioned in ancient books bolt 0111, oil sample valve 0112, oil discharging valve 0113, valve 0114, winding 0115, signal thermometer 0116, iron core 0117, oil filter 0118 and fuel tank 0119, in fuel tank, holding transformer oil 0120.
Described instrument transformer comprises voltage transformer summation current transformer, their operation principle is similar with transformer, the working voltage of high voltage installation and bus, (load or the short circuit current that are equipment and bus become the voltage and current that secondary device adapts to large electric current to scale.Under specified ruuning situation, voltage transformer secondary voltage is 100V, and Current Transformer Secondary electric current is 5A or 1A.A kind of structure of described voltage transformer as shown in Figure 4, comprise shell 0201, be placed in iron core and iron core shell 0202 in housing, once go between 0203, be placed in the burst disk 0204 on shell 0201 top, the secondary lead wires sleeve pipe 0205 being connected with iron core, be sheathed on successively from inside to outside compound insulating sleeve 0206 and the high strength casing 0207 in secondary lead wires sleeve pipe 0205 outside, be cast in the silicon rubber full skirt 0208 in described high strength casing 0207 outside, base 0209 be connected described secondary lead wires sleeve pipe 0205 in secondary lead wires be exposed to the secondary terminal box 0210 in described base 0209 outside.
Described switchgear comprises that circuit breaker, isolating switch, on-load switch and high-tension fuse etc. are for disconnecting or the equipment of the circuit that closes, wherein:
When circuit breaker is used for open circuit fault under electric power system normal operation, under protective relaying device control, automatically faulty equipment and circuit are disconnected, can also have automatic reclosing function.The safety, economy and the reliability service that maintain electric power system are played to very important effect.In the time that load drops into or shift, it can accurately carry out opening and closing operation.Break down or when bus, electric line break down, circuit breaker can be automatically by failure removal, to ensure the safe and continuous operation of non-fault point at equipment (as generator, transformer or motor etc.).
Described circuit breaker can be specifically air circuit or sulfur hexafluoride breaker.Fig. 5 shows a kind of structure of air circuit; as shown in the figure; described air circuit comprises vacuum interrupter (being vacuum bubbles) 0301, protective casing (radome) 0302, stab contact 0303, support sleeve pipe 0304, insulated tension pole 0305, supporting insulator 0306, operating mechanism 0307 and connects the support of above-mentioned each parts, and the base 0308 of the described support of fixing carrying.
Described isolating switch can be specifically disconnecting link, and its Main Function is isolation voltage in the time of equipment or line maintenance, to ensure safety.Described on-load switch can disconnect load current in the time of normal operation, can coordinate with high voltage fuse for 110KV and above voltage and not often transformer or the outlet of operation.
Conventionally, primary equipment can comprise lightning arrester (also claiming arrester).Lightning arrester is for over-voltage, and the electrical equipment of protection insulation of electrical installation, is connected to it between wire and ground conventionally, in parallel with protected equipment.The type of lightning arrester mainly contains protection gap, tube type arrester, valve-type arrester, zinc oxide arrester etc.In addition, primary equipment can also comprise reactive power compensator, shunt capacitor and current limiting reactor etc.
In the present embodiment, the connection between each installation module (installation module of primary equipment is set and the installation module of secondary device is set), is to utilize terminal board to arrange (or hub) 3 by line concentration to be connected with the terminal board of other installation modules.
Because primary equipment and secondary device are loaded into respectively in casing, the impact of ash on equipment electrical property of having avoided falling.And on casing, there is the door of corresponding one or more installation module, ensure the convenience of operating personnel to equipment operating.And described primary equipment roof box can open, expand the application space of primary equipment, for example, facilitate primary equipment directly to connect the bus of external electrical network.
In other embodiments, in order to reduce the electromagnetic radiation to external environment condition of heavy current installation, described primary equipment casing 1 inner side is provided with absorbing material layer or the screen for electromagnetic radiation shielding.As shown in Figure 6, described absorbing material layer 21 is adhered on primary equipment casing 1 interior plate, have multiple absorbers 211, described absorber can be wedge shape (being Pyramid), can be made up of polyurethane foam, nonwoven fabrics or silicate board metal module.Concrete size can arrange according to the concrete radiation intensity of primary equipment.
Described electro-magnetic screen layer can be metal screen layer or metallic shield net, and metallic shield net can be arranged to multilayer.
Described absorbing material layer or electro-magnetic screen layer greatly reduce the electromagnetic radiation of primary equipment on the one hand, described absorbing material layer wherein can also carry out thermal insulation or insulation to primary equipment, even thereby make transformer station in surrounding environment comparatively rugged environment (for example sunlight straight fluidic time is long, intensity of illumination is large, or severe cold status) in, reduce due to the adverse circumstances harmful effect that normal operation causes to equipment, by the probability of happening of few fault and accident.
In other embodiments, the inner side of described secondary device casing 2 also can arrange insulating, is subject to the impact of outside adverse circumstances for the protection of secondary device.In certain embodiments, wave-like or bar shaped even can be arranged in the outside of described primary equipment casing 1 and secondary device casing 2, can will be radiated at the part light reflection on transformer station box surface, thereby reduce the impact of extraneous light on transformer station box internal temperature.
In certain embodiments, can be support platform 4 is once set below equipment box 1 and secondary device casing 2, as the operating platform of primary equipment and secondary device, as shown in Figure 7.
In described primary equipment casing 1, secondary device casing 2, air pipe is also installed, in described air pipe, there is dry dehumidification device.For in ventilating in casing, realize the dry of air.Dry dehumidification device can adopt drier or the plant for dry carbonization.
General, described support platform 4 is electric insulation platform.
In addition, can there is connecing of stretching structure in primary equipment casing 1 arranged outside and dodge bar (traditional saying is called lightning rod), described in connect the bottom of dodging bar and be electrically connected with the grounding device that is embedded in underground through support platform 4.Connect sudden strain of a muscle bar by this, lightning can be guided into own and passed to the earth by oneself safely from primary equipment casing 1 and secondary device casing 2 tops.This connects sudden strain of a muscle bar is metal material, it is aerial and higher than primary equipment casing 1 and secondary device casing 1 that its tip is exposed to, and higher than the working depth (opening the connection peak while exposing primary equipment and this primary equipment connection external equipment when primary equipment casing 1 top) of primary equipment.So, can realize the protection to primary equipment and secondary device, simultaneously because support platform 4 is electric insulation platform, therefore, can not cause danger to the staff on it.
In above-mentioned all embodiment, the top board of described primary equipment casing 1 can be as door-plate form, with the side pivot joint of described primary equipment casing 1, thereby can realize folding.Certainly, described top board can be divided into independently some, corresponding different equipment successively respectively, so, in the time that needs expose corresponding primary equipment, only open the top board corresponding with it.
And the structure of car door 22 on described secondary device casing 2 is as shown in Figure 8, comprising:
Near roof box visit 221 and be positioned at the Xiamen 222 of visiting below, described in visit and comprise opening and closing part 223;
Described Xiamen 222 and box bottom pivot joint;
Connect box base plate also closes on the support portion 224 of Xiamen 222 and casing articulated section, and Xiamen 222 in opening is supported parallel with described box bottom upon deployment in support portion 224 and described base plate pivot joint;
Be arranged on Xiamen 222 near visiting 221 places, to lock Xiamen 222 on described side plate and to open the opening and closing part 225 of Xiamen 221 from described side plate.
The opening and closing part 225 of the described opening and closing part of visiting 223 and Xiamen can be bolt structure, all can comprise and slidably be arranged at the latch on door and be arranged at the lockhole on box side, described lockhole is within described latch sliding stroke and can hold described latch, under locking state, the head of described latch moves in described lockhole, under opening, the head of described latch leaves described lockhole.
Described support portion 224 comprises and the forearm of described box bottom pivot joint and the postbrachium hinged with described forearm, described forearm and postbrachium form folding structure, in the time of deployed condition, described forearm is perpendicular to described side plate, and the perpendicular and free end of described postbrachium and described forearm is perpendicular to ground.
So, opening 221 the process of visiting is: the latch in the opening and closing part 223 of visiting described in moving down, make this latch head leave the lockhole on side plate, thereby described in making, visit 221 releases, then described axis of visiting 221 drive-connecting shafts along itself and side plate is rotated, described in finally opening, visit 221, as shown in Figure 9.
The process of opening Xiamen can be as follows: the latch in the opening and closing part 225 of mobile described Xiamen, make this latch head leave the lockhole on side plate, thereby described Xiamen 222 is opened, then described Xiamen 222 is turned to the support portion 224 of launching and contacted along itself and the axle center of the connecting axle of box bottom, under the support of described support portion 224, described Xiamen 222 is perpendicular with described side plate, as shown in figure 10.
In above-mentioned all embodiment, the boxboard of described primary equipment casing 1 and secondary device casing 2 is metallic plate, can be specifically aluminium sheet.
Secondary device can be that primary equipment is supervised, and measures, and controls protection, the accessory equipment of adjusting.Conventionally can comprise: meter, insulating monitor, control and signalling, relaying protection and automatics; as relay, automatics etc.; DC power supply device; as batteries, DC generator, silicon rectifier device etc., supply with and control the DC power supply of protection use and with DC load and emergency lighting electricity consumption etc., high-frenquency current blocking device etc.
Meter can comprise: voltmeter, ammeter, wattmeter, electric energy meter are used for the electrical parameter of measuring circuit.
Those skilled in the art can need to select part or all of EM equipment module wherein according to scene, if owing to selecting and selecting which EM equipment module to belong to prior art as secondary device, repeated no more.
It should be noted that, introduce the basic framework that adopts transformer station herein, therefore foregoing comprises in accompanying drawing, only describes relevant parts, in fact, in concrete application, can optionally increase functional part, realizes required function.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
In addition, also it should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (9)

1. a transformer station, comprises multiple primary equipments and multiple secondary device, it is characterized in that, also comprises primary equipment casing (1) and secondary device casing (2), wherein:
Described primary equipment casing (1) comprises multiple installation modules, is provided with different primary equipments in each installation module, and on each installation module, is provided with the terminal board for being connected with other installation modules;
Described secondary device casing (2) comprises multiple installation modules, is provided with different secondary devices in each installation module, and on each installation module, is provided with the terminal board for being connected with other installation modules;
The door that is provided with corresponding one or more installation module in described primary equipment casing (1) and secondary device casing (2), the top board of primary equipment casing (1) is flexibly connected with described primary equipment casing (1);
On described secondary device casing (2), comprise car door (22), described car door (22) comprising:
Near the visiting (221) and be positioned at the Xiamen (222) of visiting below of roof box, described in visit and comprise opener (223);
Xiamen (222) and box bottom pivot joint;
Support portion (224), connect box base plate also closes on Xiamen (222) and casing articulated section, support portion (224) and described base plate pivot joint, support base and the described box bottom keeping parallelism of the Xiamen (222) in opening upon deployment;
Be arranged on Xiamen (222) upper close visit (221) and locate, realize the opening and closing part (225) of locking or unlatching Xiamen (222) with connecting lateral plate.
2. transformer station according to claim 1, is characterized in that, described primary equipment box inside is provided with absorbing material layer.
3. transformer station according to claim 2, is characterized in that, described absorbing material layer (21) is bonding with boxboard, and it is provided with multiple absorbers (211) on the side of box house.
4. transformer station according to claim 1, is characterized in that, described secondary device box inside is provided with insulating.
5. transformer station according to claim 1, is characterized in that, the connection between terminal board is undertaken by hub (3).
6. transformer station according to claim 1, is characterized in that, described primary equipment casing and secondary device casing below are provided with support platform (4).
7. transformer station according to claim 6, is characterized in that, support platform (4) is electric insulation platform.
8. transformer station according to claim 7, it is characterized in that, primary equipment casing (1) arranged outside have there is stretching structure connect sudden strain of a muscle bar, connect the bottom of dodging bar and be electrically connected with the grounding device that is embedded in underground through support platform (4).
9. according to the transformer station described in claim 1 to 7 any one claim, it is characterized in that, the boxboard of described primary equipment casing and secondary device casing is aluminium sheet.
CN201420161203.4U 2014-04-03 2014-04-03 Transformer station Expired - Lifetime CN203813282U (en)

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Application Number Priority Date Filing Date Title
CN201420161203.4U CN203813282U (en) 2014-04-03 2014-04-03 Transformer station

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Application Number Priority Date Filing Date Title
CN201420161203.4U CN203813282U (en) 2014-04-03 2014-04-03 Transformer station

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104218459A (en) * 2014-09-15 2014-12-17 国家电网公司 Monitoring device for unmanned substation terminal box
CN105811333A (en) * 2014-12-29 2016-07-27 华北电力大学 Cable routing box for intelligent electronic device of substation
CN109841464A (en) * 2017-11-27 2019-06-04 东莞市贡福电子有限公司 Fuse
CN112467550A (en) * 2020-12-28 2021-03-09 徐州徐工矿业机械有限公司 High-voltage switch cabinet of electric excavator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104218459A (en) * 2014-09-15 2014-12-17 国家电网公司 Monitoring device for unmanned substation terminal box
CN105811333A (en) * 2014-12-29 2016-07-27 华北电力大学 Cable routing box for intelligent electronic device of substation
CN105811333B (en) * 2014-12-29 2018-08-14 华北电力大学 A kind of cable routing box for intelligent substation electronic device
CN109841464A (en) * 2017-11-27 2019-06-04 东莞市贡福电子有限公司 Fuse
CN109841464B (en) * 2017-11-27 2024-01-26 东莞市贡福电子有限公司 Fuse protector
CN112467550A (en) * 2020-12-28 2021-03-09 徐州徐工矿业机械有限公司 High-voltage switch cabinet of electric excavator

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Granted publication date: 20140903

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