CN203983956U - A kind of transformer neutral point isolating switch device - Google Patents
A kind of transformer neutral point isolating switch device Download PDFInfo
- Publication number
- CN203983956U CN203983956U CN201420426010.7U CN201420426010U CN203983956U CN 203983956 U CN203983956 U CN 203983956U CN 201420426010 U CN201420426010 U CN 201420426010U CN 203983956 U CN203983956 U CN 203983956U
- Authority
- CN
- China
- Prior art keywords
- isolating switch
- transformer
- neutral point
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to transformer technology field, relate in particular to a kind of transformer neutral point isolating switch device, described isolating switch top is connected with motor drive mechanism, described motor drive mechanism by connect copper bar respectively with lightning rod, discharging gap connects, lightning rod bottom is connected with monitoring device, discharging gap bottom is provided with current transformer, the utility model is applicable to the neutral point overvoltage protection that does not connect regulating transformer in 110kV and 220kV effective grounding power network, the utility model is compared traditional device, and to have volume little, be convenient to Installation and Debugging, the feature that reliability is high, accurate with coordinating of lightning arrester characteristic and main transformer, fully effectively, thermal capacity is large, unsuitable scaling loss, fail safe and the protection effect of protection are improved.
Description
[technical field]
The utility model relates to transformer technology field, relates in particular to a kind of transformer neutral point isolating switch device.
[background technology]
It is upper that neutral point isolating switch is generally used in transformer neutral point ground connection, do earthy, single-phase, electric operating.Common isolating switch is containing operator ground cutter, three-phase, neutral point isolating switch can be avoided due to the system failure, cause that the rising of transformer neutral point voltage causes the infringement to transformer, traditional neutral point isolating switch behavior scope is single, different voltage specifications can only be applicable to corresponding voltage specification, will change switching device in change in voltage, and traditional isolating switch volume ratio is huger, after all installing, be directly transported to scene after production, be not suitable for carrying out at the scene Installation and Debugging, so just cause the restriction of the scope of application, traditional clavate discharging gap discharge voltage accuracy rate is low, dispersed high, characteristic is unstable.
Therefore, design and aly can be suitable for different transformers for overcoming the deficiency of above-mentioned technology, device structure is simple, and Installation and Debugging are convenient, a kind of transformer neutral point isolating switch device of good stability, just inventor's problem to be solved.
[utility model content]
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of transformer neutral point isolating switch device, can be suitable for different transformers, and device structure is simple, and Installation and Debugging are convenient, good stability.
For achieving the above object, the utility model can adopt following technical scheme: a kind of transformer neutral point isolating switch device, it comprises isolating switch, connects copper bar, lightning rod, discharging gap, motor drive mechanism, checkout gear, current transformer, described isolating switch top is connected with motor drive mechanism, described motor drive mechanism is connected with lightning rod, discharging gap respectively by connecting copper bar, lightning rod bottom is connected with monitoring device, and discharging gap bottom is provided with current transformer.
Further, described monitoring device is any one in detector or counter.
Further, described isolating switch, monitoring device, current transformer are arranged on respectively on body underframe, and body underframe bottom is provided with the mounting column vertical with body underframe.
Further, described isolating switch bottom is also connected with water gas pipe.
Compared with prior art; the beneficial effects of the utility model are: the utility model is applicable to the neutral point overvoltage protection that does not connect regulating transformer in 110kV and 220kV effective grounding power network; in order to make, transformer neutral point equipment performance in 110kV, 220kV transformer station is reliable, Installation and Debugging and easy to operate, arrange succinctly attractive in appearance, the utility model by electric equipments such as excellent neutrality gap, gap current instrument transformer, isolating switch, lightning arrester and mounting brackets in the transformer neutral point complete set of equipments of one.
User can select the transformer neutral point overvoltage protection scheme in pure gap, also can select gap and lightning arrester parallel operation, the scheme of coordinating protection.Lightning arrester and isolating switch can be according to requirement of engineering, assembly flexibly.The operating mechanism of isolating switch can be selected manual or electronic mode.
The utility model is compared traditional device, and to have volume little; be convenient to Installation and Debugging, feature that reliability is high; effectively protection; stability of characteristics neutral ground gap the complete sets of equipment adopt the mode in globular discharge gap; higher than usual clavate discharging gap discharge voltage accuracy rate, dispersed little, stability of characteristics;, thermal capacity large, unsuitable scaling loss accurate, abundant effectively with coordinating of lightning arrester characteristic and main transformer, improved the fail safe and protection effect protected.
[brief description of the drawings]
Fig. 1 is the utility model structural representation.
Description of reference numerals: 1-isolating switch; 2-connects copper bar; 3-lightning rod; 4-discharging gap; 5-mounting column; 6-body underframe; 7-motor drive mechanism; 8-checkout gear; 9-water gas pipe; 10-current transformer.
[embodiment]
Below in conjunction with specific embodiment, further set forth the utility model, should be understood that these embodiment are only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model instruction, these equivalent form of values drop on application appended claims limited range equally.
Shown in Figure 1, a kind of transformer neutral point isolating switch apparatus structure of the utility model schematic diagram, device comprises isolating switch 1, connects copper bar 2, lightning rod 3, discharging gap 4, motor drive mechanism 7, checkout gear 8, current transformer 10, described isolating switch 1 top is connected with motor drive mechanism 7, described motor drive mechanism 7 is connected with lightning rod 3, discharging gap 4 respectively by connecting copper bar 2, lightning rod 3 bottoms are connected with monitoring device 8, and discharging gap 4 bottoms are provided with current transformer 10.
Shown in Figure 1, monitoring device 8 can be detector or counter, isolating switch 1, monitoring device 8, current transformer 10 are arranged on respectively on body underframe 6, and body underframe 6 bottoms are provided with the mounting column vertical with body underframe 65, and isolating switch 1 bottom is also connected with water gas pipe 9.
The utility model is applicable to the neutral point overvoltage protection that does not connect regulating transformer in 110kV and 220kV effective grounding power network; in order to make, transformer neutral point equipment performance in 110kV, 220kV transformer station is reliable, Installation and Debugging and easy to operate, arrange succinctly attractive in appearance, the utility model by electric equipments such as the current transformer 10 in excellent neutrality gap, gap, isolating switch 1, lightning arrester 3 and mounting brackets in the transformer neutral point complete set of equipments of one.
User can select the transformer neutral point overvoltage protection scheme in pure gap, also can select gap and lightning arrester 3 parallel operations, the scheme of coordinating protection.Lightning arrester 3 can be according to requirement of engineering with isolating switch 1, assembly flexibly, and the operating mechanism of isolating switch 1 can be selected manual or electronic mode.
The utility model is compared traditional device, and to have volume little; be convenient to Installation and Debugging, feature that reliability is high; effectively protection; stability of characteristics neutral ground gap the complete sets of equipment adopt the mode in globular discharge gap; higher than usual clavate discharging gap discharge voltage accuracy rate, dispersed little, stability of characteristics;, thermal capacity large, unsuitable scaling loss accurate, abundant effectively with coordinating of lightning arrester characteristic and main transformer, improved the fail safe and protection effect protected.
Claims (4)
1. a transformer neutral point isolating switch device, it is characterized in that: it comprises isolating switch, connects copper bar, lightning rod, discharging gap, motor drive mechanism, checkout gear, current transformer, described isolating switch top is connected with motor drive mechanism, described motor drive mechanism is connected with lightning rod, discharging gap respectively by connecting copper bar, lightning rod bottom is connected with monitoring device, and discharging gap bottom is provided with current transformer.
2. a kind of transformer neutral point isolating switch device according to claim 1, is characterized in that: described monitoring device is any one in detector or counter.
3. a kind of transformer neutral point isolating switch device according to claim 1, it is characterized in that: described isolating switch, monitoring device, current transformer are arranged on respectively on body underframe, body underframe bottom is provided with the mounting column vertical with body underframe.
4. a kind of transformer neutral point isolating switch device according to claim 1, is characterized in that: described isolating switch bottom is also connected with water gas pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420426010.7U CN203983956U (en) | 2014-07-28 | 2014-07-28 | A kind of transformer neutral point isolating switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420426010.7U CN203983956U (en) | 2014-07-28 | 2014-07-28 | A kind of transformer neutral point isolating switch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203983956U true CN203983956U (en) | 2014-12-03 |
Family
ID=51981372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420426010.7U Expired - Fee Related CN203983956U (en) | 2014-07-28 | 2014-07-28 | A kind of transformer neutral point isolating switch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203983956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391027A (en) * | 2015-11-14 | 2016-03-09 | 彭伟成 | Transformer voltage protection device |
-
2014
- 2014-07-28 CN CN201420426010.7U patent/CN203983956U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391027A (en) * | 2015-11-14 | 2016-03-09 | 彭伟成 | Transformer voltage protection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203503990U (en) | AC (alternating current) distribution box | |
| CN201562961U (en) | AC generator neutral point integrated cabinet | |
| CN203983956U (en) | A kind of transformer neutral point isolating switch device | |
| CN203580742U (en) | Movable vehicle-mounted 110kV transformer substation | |
| CN208638279U (en) | A kind of economic and reliable switching generator output device | |
| CN207282262U (en) | Double rod bilayer distribution transforming rack | |
| CN203573811U (en) | Outdoor three-phase split type combined transformer | |
| CN202854295U (en) | High-voltage circuit-breaker transient recovery voltage regulation device | |
| CN202513569U (en) | Transformer neutral point overvoltage protector | |
| CN203573821U (en) | High-voltage parallel capacitor | |
| CN204230905U (en) | Group wells Time-sharing control device | |
| CN201975704U (en) | Lower earthing switch room of floor type alternating current high-voltage intelligent switch cabinet | |
| CN202333802U (en) | Electric system of combined compression box | |
| CN204835233U (en) | Comprehensive block terminal of area compensation | |
| CN201733088U (en) | Neutral point resistor cabinet of power transformer | |
| CN204046041U (en) | A kind of medium-voltage equipment of Rectification Power Factor filtering compensation | |
| CN203482099U (en) | Three-phase current switch | |
| CN104052045A (en) | Composite power voltage absorbing device | |
| CN203434593U (en) | Neutral-point gap ground protection apparatus of transformer | |
| CN204012232U (en) | Capacitor compensation and filtering switching device | |
| CN203799779U (en) | Neutral point and shell double-grounding system for transformer | |
| CN203871682U (en) | High-voltage switching station for nuclear power plant | |
| CN203135434U (en) | Neutral point virtual grounding device | |
| CN201829938U (en) | Independent grounding wire for high-voltage cable | |
| CN202872452U (en) | Dual supply distribution box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20150728 |
|
| EXPY | Termination of patent right or utility model |