CN203260946U - Three-phase power source switch box - Google Patents
Three-phase power source switch box Download PDFInfo
- Publication number
- CN203260946U CN203260946U CN 201320293750 CN201320293750U CN203260946U CN 203260946 U CN203260946 U CN 203260946U CN 201320293750 CN201320293750 CN 201320293750 CN 201320293750 U CN201320293750 U CN 201320293750U CN 203260946 U CN203260946 U CN 203260946U
- Authority
- CN
- China
- Prior art keywords
- phase
- circuit breaker
- indicating device
- power switch
- switch case
- 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
Links
Images
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Abstract
A three-phase power source switch box comprises a box body and a box cover. The box body is provided with a power source indicating light; a circuit breaker and a three-phase indicating device are arranged inside the box body; the circuit breaker includes an operation mechanism and an arc extinguishing switch which can be controlled through the operation mechanism; and one end of the circuit breaker is electrically connected with the power source indicating light, and the other end of the circuit breaker is electrically connected with the three-phase indicating device. With the circuit breaker and the three-phase indicating device adopted, when the three-phase power source switch box works normally, the circuit breaker is closed, and the three-phase indicating device emits light; and when faults occur on a circuit, the circuit breaker controls the arc extinguishing switch through the operation mechanism so as to switch off the circuit, and at the same time, generated electric arc can be extinguished, and the three-phase indicating device does not emit light, as a result, maintenance personnel can be prompted, and it can be ensured that maintenance can be performed under a safe state.
Description
Technical field
The utility model relates to the electric equipment field, particularly relates to a kind of three-phase power switch case.
Background technology
Source box, general power supply distribution box, the power distribution cabinet of crying again is the equipment of concentrating, switch and distribute electric energy.Can be divided into AC and DC mains switch case according to electric current; Can be divided into lighting power switch case and electrical source of power switch-box according to voltage, perhaps high-voltage electric switch case and low-voltage power switch case.General source box is used for conveniently stopping to send electricity, plays metering and judges the effect that stops sending electricity, also easy access when the transtation mission circuit fault.
General source box only has a power supply indicator usually, can only know source box whether in work, and can't know that whether in the source box three-phase each be charged, can't bring safety guarantee to the maintainer; And, general source box, all can only provide less drop-out current, in circuit, break down, when short circuit current is excessive, the situation that the connecting-disconnecting function deficiency then can occur causes electrical equipment to burn out or phenomenon that whole circuit can't work, even causes potential safety hazard to user and surrounding environment.
The utility model content
Based on this, being necessary provides a kind of three-phase power switch case for safety guarantee and the problem that larger drop-out current can't be provided can not be provided.
A kind of three-phase power switch case, comprise casing and case lid, described casing is provided with power supply indicator, also be provided with circuit breaker and three-phase indicating device in the described casing, described circuit breaker comprises operating mechanism and can pass through the arc-suppressing switch of described operating mechanism control, one end of described circuit breaker is electrically connected with power supply indicator, and the other end of described circuit breaker is electrically connected with described three-phase indicating device.
Among embodiment, described three-phase indicating device also is provided with the protected location for the protection of described three-phase indicating device therein, and described protected location for the protection of described three-phase indicating device is connected between described three-phase indicating device and the described circuit breaker.
Among embodiment, isolating switch is set all before and after the described circuit breaker therein.
Among embodiment, described arc-suppressing switch is metal arc-chute chip arc-suppressing switch therein.
Among embodiment, described power supply indicator is provided with the protected location for the protection of described power supply indicator therein.
Among embodiment, described casing side is provided with expansion interface therein, and described expansion interface is provided with the protected location for the protection of described expansion interface, and described expansion interface is provided with indicator light.
Among embodiment, a side of described casing is provided with entrance hole therein, and opposite side is provided with wire hole.
Among embodiment, described casing is provided with pulling apparatus therein.
Therein among embodiment, the described tank surface bulletin zone that has been sticked.
During above-mentioned three-phase power switch case normal operation, described power supply indicator is electrically connected with an end of described circuit breaker, the other end of described circuit breaker is electrically connected with described three-phase indicating device, described power supply indicator is shinny, described three-phase indicating device is also shinny, and the expression three-phase all is in normal operating conditions; If the three-phase indicating device does not work, represent that then the three-phase of three-phase power switch case is not charged, bring safety guarantee to the maintainer; When the three-phase power switch case works; be connected in the circuit described breaker closing; when circuit breaks down; when causing short circuit current excessive, described circuit breaker disconnects, and controls arc-suppressing switch by the operating mechanism of described circuit breaker simultaneously; so that the arc extinction that described circuit breaker produces when disconnecting; realize cutting off the purpose of circuit when circuit breaks down, larger drop-out current is provided for the threephase switch power supply box, protection back-end circuit part is not damaged.
Description of drawings
Fig. 1 is the structural representation of three-phase power switch case;
Fig. 2 is the structural representation in the front of threephase switch power supply box;
Fig. 3 is the structural representation of the side of threephase switch power supply box;
Fig. 4 is the structural representation of the another side of threephase switch power supply box.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.
See also Fig. 1 to Fig. 4, a kind of three-phase power switch case, comprise casing 100 and case lid 200, described casing 100 is provided with power supply indicator 110, also be provided with circuit breaker 120 and three-phase indicating device 130 in the described casing 100, described circuit breaker 120 comprises operating mechanism 122 and the arc-suppressing switch 124 that can pass through described operating mechanism 122 controls, and an end of described circuit breaker 120 is electrically connected with power supply indicator 110, and the other end of described circuit breaker 120 is electrically connected with described three-phase indicating device 130.Described three-phase indicating device 130 comprises mutually 136 three-phase indicating devices of A phase 132, B phase 134 and C.
During above-mentioned three-phase power switch case normal operation, described power supply indicator 110 is electrically connected with an end of described circuit breaker 120, the other end of described circuit breaker 120 is electrically connected with described three-phase indicating device 130, described power supply indicator 110 is shinny, described three-phase indicating device 130 is also shinny, and expression A phase 132, B phase 134 and C mutually 136 three-phases are in normal operating conditions; If A mutually 132, B mutually 134 and C mutually 136 three-phase indicating devices 130 do not work, the A that then represents the three-phase power switch case is mutually 132,136 three-phases are not charged mutually with C for B phase 134, bring safety guarantee to the maintainer.When the three-phase power switch case works; described circuit breaker 120 is connected in the circuit closedly; when circuit breaks down; when causing short circuit current excessive, described circuit breaker 120 disconnects, and controls arc-suppressing switchs 124 by the operating mechanism 122 of described circuit breaker 120 simultaneously; so that the arc extinction that described circuit breaker 120 produces when disconnecting; realize cutting off the purpose of circuit when circuit breaks down, larger drop-out current is provided for the threephase switch power supply box, protection back-end circuit part is not damaged.
Therein among embodiment; described three-phase indicating device 130 also is provided with the protected location for the protection of described three-phase indicating device, and described protected location for the protection of described three-phase indicating device is connected between described three-phase indicating device 130 and the described circuit breaker 120.Electric current in circuit is excessive; when having surpassed the load of three-phase indicating device 130; described protected location for the protection of described three-phase indicating device provides protection to three-phase indicating device 130; protect described three-phase indicating device 130 not to be destroyed, prolong the useful life of described three-phase indicating device 130.It is to be noted; described protected location for the protection of described three-phase indicating device is used for protecting described three-phase indicating device 130; even without setting, during the circuit normal operation, described three-phase power switch case can realize that still three-phase indicating device 130 is shinny.
Among embodiment, described circuit breaker 120 front and back all arrange isolating switch therein.Described isolating switch connects as changing circuit, or makes circuit or equipment and isolated from power, and its ability that do not stop can only again operation after with miscellaneous equipment circuit being disconnected.At circuit breaker 120 front-backs one group of isolating switch is installed respectively, purpose all is circuit breaker 120 and isolated from power will be formed obvious cut-off point, is beneficial to maintenance.So isolating switch is not necessary.
See also Fig. 4, described arc-suppressing switch 124 is metal arc-chute chip arc-suppressing switch.Arc extinguishing grid pieces is one of basic skills of extinguish arcs, and in the present embodiment, described arc extinguishing grid pieces is generally metal arc extinguishing type arc extinguishing grid pieces.When producing electric arc between contact, electric arc is drawn into the metal arc extinguishing grid pieces under the convergent force effect of the magnetic line of force, and this moment, a long arc was separated into the multistage short arc.When the alternating current zero passage, all short arcs extinguish simultaneously, owing to nearly cathode effect, all occur immediately the starting medium intensity of 150-250V near the negative electrode of every section short arc, as long as the starting medium intensity summation of all series connection short arcs is greater than the applied voltage between contact, electric arc will no longer be restriked.It is pointed out that metal arc-chute chip arc-suppressing switch is not necessary, can also utilize medium arc extinguishing, gas or oily separating rate of blowing electric arc, raising contact of breaker etc. mode to come arc extinguishing.
Among embodiment, described power supply indicator 110 is provided with the protected location for the protection of described power supply indicator therein.Described protected location for the protection of described power supply indicator is mainly for the protection of power supply indicator 110; when short circuit current appears in circuit or be higher than the maximum current of power supply indicator 110, provide protection to power supply indicator 110, prolong the useful life of described power supply indicator 110.
See also Fig. 2, described casing 100 sides are provided with expansion interface 140, and described expansion interface 140 is provided with the protected location for the protection of described expansion interface, and described expansion interface 140 is provided with indicator light 142.Described expansion interface 140 can be positioned at the left side of described casing 100, also can be the right side, and perhaps being located at respectively both sides can.The number of expansion interface 140 is at least two, also can suitably increase the expansion interface 140 of some.In the present embodiment, expansion interface 140 is positioned at a side of described casing 100, and the number of expansion interface 140 is two, and one is 10A, and one is 15A.By at described casing 100 expansion interface 140 being set, made things convenient for operation.Described protected location for the protection of described expansion interface is mainly for the protection of expansion interface 140; when short circuit current appears in circuit or be higher than the maximum current of expansion interface 140, provide protection to expansion interface 140, thus the load device that protection expansion interface 140 connects.Whether described expansion interface indicator light 142 is mainly used to the indication extension interface and works, and when described expansion interface indicator light 142 is bright, illustrates that then expansion interface 140 is connected to load, and works; When described expansion interface indicator light 142 does not work, illustrate that then described expansion interface 140 does not connect load.
See also Fig. 3 and Fig. 4, a side of described casing is provided with entrance hole 152, and opposite side is provided with wire hole 154.During the normal operation of three-phase power switch case, need to connect zero line and live wire, for safety also will connect ground wire, the components and parts of three-phase power switch box body inside could charged normal operation like this.At this moment, this three line is connected in the switch-box by entrance hole 152 and the wire hole 154 of special setting, and clear and definite input/output terminal had both made things convenient for operation, also can provide safety guarantee to the user.
Also see also Fig. 2 and Fig. 3, described casing is provided with pulling apparatus 160.Described pulling apparatus 160 is used for conveniently described three-phase power switch case being guided and supported, and can supply outdoor or mine operation.Described pulling apparatus 160 can be the handle that is positioned at described casing 100 both sides, also can be the handle that is positioned at described casing top or the hanging hole of cucurbit shape.When needs moved, the user operated more laborsaving, simpler by handle or handle moving switch case more easily.
See also Fig. 1, the described tank surface bulletin zone 170 that has been sticked.Title label and operation billboard are posted in described bulletin zone 170.Described title label is namely indicated the contents such as attribute of described three-phase power switch case, gives people the effect with caution.Described operation billboard refers to operational manual, clearly provides operating procedure, helps the user correctly to use the three-phase power switch case according to operating procedure, avoids causing unnecessary accident because of misoperation.Perhaps when switch-box breaks down, can make rapidly safeguard measure according to the operation indication timely.It is to be noted, described bulletin zone 170 is to paste title label and operational manual etc., to people caution with help that the user is correct to use described three-phase power switch case, so for drop-out current with to bring safety guarantee to the maintainer be not necessary.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (9)
1. three-phase power switch case, comprise casing and case lid, described casing is provided with power supply indicator, it is characterized in that, also be provided with circuit breaker and three-phase indicating device in the described casing, described circuit breaker comprises operating mechanism and the arc-suppressing switch that can pass through described operating mechanism control, and an end of described circuit breaker is electrically connected with power supply indicator, and the other end of described circuit breaker is electrically connected with described three-phase indicating device.
2. three-phase power switch case according to claim 1; it is characterized in that; described three-phase indicating device also is provided with the protected location for the protection of described three-phase indicating device, and described protected location for the protection of described three-phase indicating device is connected between described three-phase indicating device and the described circuit breaker.
3. three-phase power switch case according to claim 2 is characterized in that, isolating switch all is set before and after the described circuit breaker.
4. three-phase power switch case according to claim 1 is characterized in that, described arc-suppressing switch is metal arc-chute chip arc-suppressing switch.
5. according to the described three-phase power switch case of claim 1 to 4 any one, it is characterized in that described power supply indicator is provided with the protected location for the protection of described power supply indicator.
6. described three-phase power switch case according to claim 5 is characterized in that described casing side is provided with expansion interface, and described expansion interface is provided with the protected location for the protection of described expansion interface, and described expansion interface is provided with indicator light.
7. three-phase power switch case according to claim 6 is characterized in that, a side of described casing is provided with entrance hole, and opposite side is provided with wire hole.
8. three-phase power switch case according to claim 7 is characterized in that described casing is provided with pulling apparatus.
9. three-phase power switch case according to claim 8 is characterized in that, the described tank surface bulletin zone that has been sticked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320293750 CN203260946U (en) | 2013-05-24 | 2013-05-24 | Three-phase power source switch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320293750 CN203260946U (en) | 2013-05-24 | 2013-05-24 | Three-phase power source switch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203260946U true CN203260946U (en) | 2013-10-30 |
Family
ID=49473484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320293750 Expired - Lifetime CN203260946U (en) | 2013-05-24 | 2013-05-24 | Three-phase power source switch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203260946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269016A (en) * | 2013-05-24 | 2013-08-28 | 广州供电局有限公司 | Three-phase supply switch box |
-
2013
- 2013-05-24 CN CN 201320293750 patent/CN203260946U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269016A (en) * | 2013-05-24 | 2013-08-28 | 广州供电局有限公司 | Three-phase supply switch box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102222893B (en) | A kind of fast failure demand limiter based on current-carrying isolator | |
| CN103441466A (en) | Automatic phase-failure zero-failure power-off protection device | |
| CN201629258U (en) | Low SF6 gas pressure blocking control loop of high-voltage circuit breaker | |
| CN204360954U (en) | Transformer body wiring flame proection | |
| CN203260946U (en) | Three-phase power source switch box | |
| CN203387153U (en) | Automatic power-off protection device for phase loss and zero-line deficiency | |
| CN105140878B (en) | High voltage drop-out type fuse cutout overcurrent switching protection | |
| CN208521887U (en) | A kind of electronic fuse switch equipped with arc extinguishing structure | |
| CN201757073U (en) | Safe & intelligent type explosionproof air blower electric control box | |
| CN103269016A (en) | Three-phase supply switch box | |
| CN208782486U (en) | A kind of arc-extinction device can be used for power grid AC and DC breaker | |
| CN209056099U (en) | Line combined floodgate power transmission body-sensing device with ground | |
| CN202564798U (en) | Intelligent harmonic and arc extinction switch cabinet | |
| CN203233139U (en) | Transformer neutral-wire break protection device | |
| CN203434595U (en) | Dual power supply manual switch protection circuit | |
| CN208861555U (en) | Live connection of ground wire body-sensing device | |
| CN208257496U (en) | Dual-power automatic switching formula heating tape current supply circuit | |
| CN203826804U (en) | Illumination power distribution box | |
| CN208257392U (en) | A kind of HV motor protection device | |
| CN204598444U (en) | Power matching network system intelligent transformer station observing and controlling high build-up of luminance value indicating lamp cashier's office in a shop | |
| CN214280909U (en) | Self-driven vacuum double-arc-extinguishing-chamber quick on-off circuit | |
| CN110535108B (en) | Portable operation loop | |
| CN111326364A (en) | Intelligent controller of high-voltage isolating switch | |
| CN203503512U (en) | High-low AC/DC switch arc-extinguishing device | |
| CN202628577U (en) | Anti-explosion control system for fan power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200918 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |